Engineering Jobs in Palomar Park, CA

Your new company

Our client, a well‑respected San Francisco Bay Area General Contractor, is adding an Estimator to its 12‑person preconstruction team. The company is known for consistently delivering high‑quality work. The firm has built a strong reputation across multifamily, commercial, civic, aviation, and seismic‑retrofit projects ranging from $5M to $200M+. The company is known for its supportive culture, stable workload, and leadership that actively invests in training and career development. This is a full‑time, in‑office role in San Francisco with an excellent work‑life balance.

Your new role

As the successful Estimator, you’ll support preconstruction efforts on projects typically ranging up to $50m, handling full-scope estimating responsibilities. You’ll work alongside Senior and Junior Estimators and collaborate closely with project teams and design partners.

Key responsibilities include:

• Preparing detailed takeoffs, budgets, and cost estimates
• Reviewing plans, specs, and project documents
• Leading subcontractor outreach and bid scoping
• Supporting proposals, bids, and value‑engineering
• Participating in preconstruction and design development meetings

What you'll need to succeed

• 5–7 years GC experience, including 1–2 years full-scope estimating
• Experience with multifamily and negotiated work
• Degree in Construction Management, Architecture, or Engineering
• Strong plan reading, communication, and collaboration skills
• Ability to work onsite in San Francisco

What you'll get in return

• Base salary up to $155k
• $650/month vehicle allowance, gas card, Fastrak
• Bonus eligibility
• Full medical, dental, vision + 401(k) match
• PTO, holidays, professional development
• Supportive leadership and a well-staffed team

What you need to do now

If you're interested in this role, click 'apply now' to forward an up-to-date copy of your resume or call us now to discuss. If this job isn't quite right for you, but you are looking for a new position, please contact us for a confidential discussion about your career.

The Senior Estimator responsible for preparing budgets, estimates and pre- bid packages for construction projects to be built for clients under the CM at Risk guaranteed maximum pricing structure.

Responsibilities also include working with the project management team in establishing a bidders list, soliciting and evaluating subcontractor proposals and scopes of work, preparing quantity surveys and reviewing project plans and specifications for constructability and value engineering in all CSI (Construction Specification Institute) categories of work.

The Senior Estimator will supervise a team of estimators and cost engineers who support departmental and organizational goals through their efforts.

Responsibilities includes (but may not be limited to):

• Performs accurate, thorough and timely quantity takeoffs using company format, detail and coding for all MasterFormat (CSI), Uniformat and bid packages for all levels of project documents (schematic, design development and construction documents) that can be clearly understood by internal and external team members.
• Assist in developing estimates by evaluating drawings, building plans, specifications, & related documents.
• Assists in providing quantity comparison between estimate revisions.
• Prepares detailed estimate.
• Actively participates in the internal estimate review process.
• Develops accurate and concise clarifications and assumptions with the project management team’s assistance.
• Assists with final assembly of estimate for presentation to owner.
• Summarize estimate data into reports for review by executive team, clients, and design teams.
• Prepares and presents budget presentations to owners and architects.
• Leads the buyout process.
• Prepare detailed instructions to bidders, trade specific scope of work and comprehensive bid packages.
• Directs, coordinates and provides information and documents to subcontractors.
• Assist with pre-bid site walks and document existing conditions.
• Assist with subcontractor bid review and ensure scope of work is comprehensive.
• Prepare bid tallies for project team and owner review.
• Leads in the technical review of plans and specifications during the schematic design, design development and construction document phases of pre-construction.
• Assist with reviews of milestone documents to identify and communicate the development of changes to the team.
• Obtains clarification on plans and specifications from architects and engineers when necessary.
• Conducts reviews of milestone documents to identify and communicate the development of changes to the team.
• Communicates with architects and consultants to clarify scope of work, materials, and schedule requirements, and documents these clarifications.
• Demonstrate strong communication skills internally with project management team, and externally with owner, architect, engineer, and subcontractors.
• Manage individual workload to accomplish tasks within given timeframes.
• Manage other team members’ workloads to accomplish tasks within given timeframes.
• Ability to perform duties across multiple projects concurrently.
• Considers and understands problems and identifies appropriate solutions.
• Builds and maintains effective relationships with customers, design team, subcontractors, suppliers and user groups that reflect and support company core values and meets customer’s expectations.
• Attends project site pre-bid meetings, site tours and post-bid interviews as required.
• Assist and participate with pursuit interview prep and presentations.
• Develops unit costs accurately and analyzes value management analysis options.
• Develops Cost Management / Value Engineering log process and manages during the preconstruction process.
• Develops Variance Reports at milestone issuances that clearly define deltas between estimates for internal and external use.
• Develop Cost Studies in clear and concise platform for project team review and decision making.
• Develop Benchmark studies for project estimate comparison for internal review and analysis.
• Self-reliant in researching, understanding, and developing knowledge of building designs, systems, construction materials, and methods through available resources.
• Ability to teach, educate, and guide both internal and external team members.
• Provides internal database input based on current market feedback for incorporation into database.
• Leads in the training and development of cost engineers.
• Leads in the training and development of estimators.
• Provide feedback to estimate team members on work process / work product on a regular basis.
• Works closely with new hires and/or new project teams to educate them on the way of doing business based on standard forms, programs and operational standards.
• Oversees the preconstruction process with the owner’s team.
• Provides support as needed to the project management teams as needed.
• Creates projected budgets early in the design phase of a project.
• Coordinates preconstruction planning with design team, contractors and clients.
• As necessary, works with Executive Group on special initiatives, company goals and associate related training and/or programs.
• Provides input on future projects via lessons learned and continuous improvement.
• Attends project meetings with clients, the city and design team.
• Works with development or owner to coordinate the design and specifications on issues.
• Leads the pre-construction team to ensure initial budgeting represents current market pricing and quality reporting.
• Communicates with project management team, ownership, clients, subcontractors, vendors, etc. to provide quality results while mitigating project risks.
• Collaborates with VP’s towards a common goal; streamline the project delivery process, review progress of buy- out, submittals, construction schedule and performance on all projects.
• Keeps current with latest estimating technology and techniques.
• Manages project budgets for preconstruction services.
• Manage time and utilize electronic timecard software in a timely manner.
• Other duties upon request.

Qualifications:

• 10+ years of experience as Estimator / Sr. Estimator in commercial construction industry
• Bachelor’s degree in Construction Management, Construction Science, or Civil Engineering preferred but not required
• General Construction Knowledge
• Knowledgeable in civil/site construction, foundation and structural systems, interior finishes, exterior wall systems, mechanical and electrical systems and the costs of these systems
• Ability to read and interpret drawings and specifications
• General knowledge of negotiated bids, hard bids, and GMP processes
• Proficient in all estimating software programs used in preconstruction: On-Screen Takeoff (OST), Destini, Timberline, Building Connected, Assemble, Bluebeam, Power BI, BIM360, Excel, Word, MS Project
• Must possess strong verbal and written communication skills
• Strong math and analytical skills
• Attention to detail
• Organized, efficient, able to multi-task effectively, hardworking, and dedicated
• Able to thrive in a deadline-oriented, fast-paced environment
• Excellent communication skills and interpersonal skills
• Demonstrated analytical, problem solving, and both oral and written communication skills
• Enjoys being part of a collaborative team and a fun work environment
• Possess the ability to estimate all aspects of a commercial construction project, assemble into one budget and present to owners
• Must be able to operate as a “stand alone” estimator able to handle complete projects if required
• Ability to manage personnel, subcontractors, preconstruction schedules and preconstruction budgets
• Ability to mentor and coach personnel

Working Conditions:

• Duties required physical abilities such as repetitive hand and finger motion, sitting, standing, walking, as well as extending hands and arms in work areas.
• The individual is required to occasionally move around the office and constantly operate a computer and other office machinery, etc.
• Reasonable accommodations may be made to enable individuals with disabilities to perform the essential job functions.

ProcureAbility, a Jabil company, is the leading procurement services company, offering advisory, managed services, digital, staffing, and recruiting solutions. For 30 years, we have focused exclusively on helping clients elevate their procurement function. We combine leading methodologies, analytics, market intelligence, and industry benchmarks with our uniquely flexible and customizable service delivery model. Global organizations of all sizes trust ProcureAbility to transform their procurement operations, drive growth, and reimagine what’s possible.

Job Title: Sourcing and Contract Specialist

Our client, a leader in their industry, is hiring Sourcing and Contract Specialists. These are contract roles, currently scheduled through 12/31/26 with potential to convert to direct hire.

Hybrid Role: Training will be on-site for 2 weeks, and then the role will be hybrid. After the training period, the work is expected to be mainly remote with occasional on-site meetings.

Location: East San Francisco Bay area

Job Category: Procurement / Supply Chain

Job Level: Individual Contributor

Applicants must be authorized to work for ANY employer in the U.S. ProcureAbility is unable to sponsor or take over sponsorship of an employment Visa at this time.

What can you expect to do?

Responsibilities:

• Conducts negotiations with bidders, for non-routine, may support or work with Sourcing.

• Coordinates and assembles supporting documentation to support audits.

• Works with vendors and internal stakeholders to assemble, review, prepare, and route for vendor and management approval (using ARIBA and EDRS), necessary documents for these tasks.

• Works with vendors, Project Team to improve quality of supporting contract documents to reduce rework required by others.

• May assist in the creation and development of purchase requisitions.

• For Routine Contracts, reviews vendor proposals to ensure that rates and terms are consistent with outline agreements.

• May support / review vendor proposals to ensure that rates and terms are consistent with outline agreements.

• Ensures that Company standards are followed when executing contract documents.

• Tracks approval status of contracting documents from inception through approval and ensures that documents are routed expeditiously.

• For Routine Contracts, conducts negotiations with bidders, for non-routine, may support or work with Sourcing department.

• Reviews purchase orders and contracts as part of procurement approval process.

• Provides technical support and analysis in preparation of scope, cost, schedule, safety and environmental concerns pertinent to the contract specifications; and verify and process contract invoices.

What is needed to be successful in this role?

• Bachelor’s Degree in Construction Management, Engineering, Business Administration or related field

• Ability to work in cross-functional teams

• Ability to work in a team environment

• Ability to work on multiple issues and tasks

• Advanced in MS Excel, PowerPoint

• Demonstrated competencies on use of supply chain management tool (e.g. ARIBA) and other business systems tools (SAP, SharePoint, EDRS)

• Demonstrated knowledge of Company standards regarding contracting processes.

• Conflict resolution/negotiation skills

• Demonstrated ability to track contract costs, purchase order status, and other required information in SAP

• Demonstrated competencies on use of ARIBA and EDRS is a plus

• Process improvement experience

• Presentation Skills

• Verbal and Written Communication Skills

• Knowledge of Contractual Terms and Conditions

ProcureAbility, A Jabil Company, is proud to be an Equal Employment Opportunity and Affirmative Action Employer. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, gender identity, gender expression, age, status as a protected veteran, status as a person with a disability, or other legally protected characteristics.

If you are a Qualified Person with a Disability or a Disabled Veteran and require assistance making your application, please get in touch with HR at

Don’t meet every single requirement? Studies have shown that women and people of color are less likely to apply for jobs unless they meet every qualification. At ProcureAbility, we are dedicated to building a diverse, inclusive, and authentic workplace, so if you’re excited about this role but your experience doesn’t align perfectly with every qualification in the job description, we encourage you to apply anyway. You may be just the right candidate for this or other roles.

Kitchell seeks an experienced and dedicated Senior Project Manager to join our Bay Area region in San Mateo County, CA and build a long-term career at one of the most innovative and growth-oriented building companies in the United States.

Overview

Provide onsite PM/CM Services as an owner’s representative on a large Division of the State Architect (DSA) k-12 Education Market Sector program.

Responsibilities

• Providing PM/CM Consultant Services for the owner on multiple k-12 projects
• Ensures operations are executed in accordance with company project management procedures and policies
• Ensures delivery and adherence to contractual requirements and that all aspects of owner contracts are accomplished
• Manage the procurement phase and development of RFQs and RFPs
• Oversight of contracts, drawings, estimates, and specifications to ensure relation and compliance to project requirements
• Coordinate, direct, and monitor activities of contractors/subcontractors, engineers, architects, and related performing entities
• Manage project controls, cost, schedule, performance activities, and procedures required by the client
• Identifies and manages risk on the project, and advises and confers with regional executive prior to implementing risk mitigation actions
• Actively participates on internal teams that focus on continuous improvement of the company
• Ensures workplace health and safety policies and procedures are clearly communicated and understood by direct reports and enforces rules fairly and uniformly

Qualifications

Education and Experience

• Bachelor’s degree in Architecture, Engineering, Construction Management, or related discipline is preferred
• 12 or more years of experience in the Design/Engineering/Construction (DEC) industry of which a minimum of 5 years as a Project Manager is required

Knowledge and Skills

• Effective presentation skills, ability to develop and deliver presentations to the end users, stakeholders, board of education is required
• Proficient user skills with the MS Suite of tools and Bluebeam are required
• Working knowledge of standard industry tools such as P6 and Procore are strongly preferred
• Effective verbal and written communication skills to foster and maintain interpersonal relationships is required
• Provide leadership and financial management support to the project team is required

License and Certifications

• A Certified Construction Manager (CCM) credential, a Design Build Institute of America (DBIA) certification, and/or a LEED Professional Accreditation is preferred
• A valid California driver’s license and clean driving record is required

Travel Requirements

This position is performed on location at the project site in San Mateo County, CA.

Work Environment

While performing the duties of this job, the employee must regularly work in an office, an office trailer, and/or in a construction jobsite environment. Conditions regularly include exposure to outdoor elements, hot/cold temperatures, wet conditions, noise, atmospheric conditions, and cramped quarters. The noise level in the work environment is occasionally loud.

Physical Requirements

While performing the duties of this job, the employee must regularly sit, stand, walk, talk or hear and use hands to finger, feel and handle; frequently reach with hands and arms; occasionally climb or balance and stoop, kneel, crouch or crawl. Specific vision abilities required by this job include close vision, distance vision, depth perception and ability to adjust focus. Must frequently lift and or move 10 pounds and occasionally lift and or move up to 50 pounds.

ABOUT OUR COMPANY

Founded in 1950, Kitchell began as a commercial contracting business and over the years developed new talents and enterprises, acquiring complementary businesses and expertise to remain competitive. Today, Kitchell Corporation serves as the holding entity for several companies that are integral to Kitchell's core business, as well as those that operate independently. We provide a wide range of services within the built environment, including general contracting, construction management, development, facilities management, engineering, architecture, and myriad other services. Our employees manage projects from our main offices located in Arizona, California, and Texas. We offer an entrepreneurial environment that fosters personal and professional growth through in-house education programs, formal and informal mentoring, and cross-training opportunities. At Kitchell, we prioritize internal growth and building careers from within. We consistently rank among the top places to work, thanks to our tenured staff and outstanding benefits that are designed to enrich our employees’ physical, mental, emotional, and financial well-being. These benefits include company performance bonuses, discretionary stock options, incentive bonuses, health, and life insurance, health savings accounts (HSA) with wellness incentives, flexible spending accounts (FSA), 401(k) plans with a 4% company match, tuition reimbursement, weight loss programs, discounted auto insurance, identity theft protection, rewards programs, and much more.

Kitchell is an Equal Opportunity/Affirmative Action employer and will consider all qualified applicants for employment without regard to race, color, religion, sex, national origin, protected veteran status, or disability status.

The annual base salary range for this role is currently $170,000 - $200,000. The Company’s salary ranges are determined by role, level, location, and alignment with market data. Individual pay is determined through interviews and an assessment of various factors, including job-related skills, relevant education and experience, abilities of the applicant and equity with other team members. The annual base salary range listed here is subject to change at any time, in the Company’s discretion, and does not alter in any way the at-will nature of the employment relationship.

• Responsible for updates, upgrades and maintenance of the following systems: Rail Operations Control System (ROCS); Predictive Arrival and Departure System (PADS), Positive Train Control (PTC) back-office systems, Traction Power Supervisory Control and Data Acquisition (SCADA) System and Rail Scheduling.
• Perform Quality Assurances and system engineering support of all back off systems including PTC office systems, Back Office Server (BOS), Rail Operations Control System (ROCS), Network Management System (NMS); Interoperable Train Control Message Server (ITCMS); Wayside Status Relay Service (WSRS), and the interfaces to all other operational systems.
• Develop, document, and maintain Standard Operating Procedures (SOPs), technical standards, and best practices for all train control and related systems to ensure consistency, safety, and regulatory compliance.
• Develop and implement training programs to upskill staff, mentoring team members at all levels on train control systems, operational procedures, and project management to strengthen technical capacity, foster skill development, and ensure succession planning. 
• Ensure Caltrain systems meet Federal Railroad Administration (FRA) mandated interoperability requirements with all tenant railroads; ensure Caltrain train control systems are compatible with Association of American Railroads (AAR) standards; follow the ITC guidelines that Caltrain must maintain ?N-2? backwards compatible software versions.
• Manage complex and large-scale train control engineering projects as the Technical Lead for Caltrain. 
• Manage the work of outside contractors and assist higher level Caltrain Directors and Executives in planning and evaluating the quantity and quality of work performed by subordinate staff.
• Supervise staff.  Hire, mentor, and take appropriate corrective and/or disciplinary action.  Ensure EEO policies and procedures are followed. Participate in selection of staff.  Coordinate staff training and professional development. Establish performance objectives. Monitor and evaluate employee performance.

• Establish and maintain work relationships with internal and external stakeholders to develop consensus on capital project work plans.
• Establish schedules and methods for providing train control system engineering design services on assigned capital projects; identify resource needs; review needs with appropriate management staff; allocate resources accordingly.
• Review and approve project schedules; assist in strategic planning; prepare status reports; coordinate project resources; communicate with all project participants on relevant issues; identify and resolve train control engineering issues.
• Provide general technical oversight of railroad train control systems.
• Perform system usage and performance analyses. 
• Support Caltrain Configuration Management (CM) Manager on configuration control, prioritize system defects and corrective actions; participate in Configuration Control Board (CCB) meetings as required.
• Direct, review, and approve the preparation of train control engineering designs, drawings, and specifications; identify and resolve technical engineering issues.
• Manage technical elements of the office systems warranty and long-term maintenance support service agreements.
• Review and approve operating manuals and procedures developed by various systems providers or vendors.
• Manage all technology refresh and software upgrades/updates and associated testing without interrupting regular railroad operations.
• Establish and lead a knowledge management framework to systematically capture, update, and share institutional knowledge through structured documentation, training programs, and knowledge transfer initiatives.
• Participate in the preparation and administration of the train control engineering program budget (Operating & Maintenance, and Capital); submit budget recommendations; monitor expenditures.
• Review consultant proposals and designs; recommend awards; conduct or participate in the pre-bid conferences prior to system contract awards.
• Perform all job duties and responsibilities in a safe manner to protect one?s self, fellow employees, and the public from injury or harm. Promote safety awareness and follow safety procedures in an effort to reduce or eliminate accidents.
• Perform other duties as assigned.

Sufficient experience, training and/or education to demonstrate the knowledge and ability to successfully perform the essential functions of the position. In lieu of a degree, work-related experience that demonstrates the skills and experience necessary to perform this role will be accepted. Development of the required knowledge and abilities is typically obtained through but not limited to:

• Bachelor?s degree in electrical/electronics, computer science, or a related field.
• Five (5) years of railroad industry experience in Train Control System and SCADA system development and maintenance.
• Two (2) years supervisory experience

• Knowledge and experience with AIMCore Product/Software a plus.
• Possesses a broad interdisciplinary knowledge of supervisory train control, wayside signal, highway crossing warning system, predictive and arrival system, traffic signal control, traction power substations and distribution, SCADA, server systems, virtualized server architectures, databases, cloud server systems, networking, etc.
• Knowledge of operating systems (UNIX, Linux, Microsoft)
• Knowledge of VHF and UHF radio voice and data communications, information assurance, data security and networking technologies.
• Experience with Configuration Management and Quality Assurance Systems.
• Ability to Interpret and revise engineering plans, drawings, and specifications.
• Proficient with Microsoft Office Suite.
• Effective oral and written communication skills.

PI282632635

About Pinterest:

Millions of people around the world come to our platform to find creative ideas, dream about new possibilities and plan for memories that will last a lifetime. At Pinterest, we're on a mission to bring everyone the inspiration to create a life they love, and that starts with the people behind the product.

Discover a career where you ignite innovation for millions, transform passion into growth opportunities, celebrate each other's unique experiences and embrace theflexibility to do your best work. Creating a career you love? It's Possible.

At Pinterest, AI isn't just a feature, it's a powerful partner that augments our creativity and amplifies our impact, and we're looking for candidates who are excited to be a part of that. To get a complete picture of your experience and abilities, we'll explore your foundational skills and how you collaborate with AI.

Through our interview process, what matters most is that you can always explain your approach, showing us not just what you know, but how you think. You can read more about our AI interview philosophy and how we use AI in our recruiting process here.

With more than 550 million users around the world and 300 billion ideas saved, Pinterest Machine Learning interns help build personalized experiences to help Pinners create a life they love. With just over 3,000 global employees, our teams are small, mighty, and still growing. At Pinterest, you'll experience hands-on access to an incredible vault of data and contribute large-scale recommendation systems in ways you won't find anywhere else.

As a machine learning intern at Pinterest, you'll work on tackling new challenges in machine learning and artificial intelligence. You'll conduct research that can be applied across Pinterest engineering teams and engage in external collaborations and mentoring, while also performing research in any of the following areas: image recognition, user modeling, recommender systems,search, ads, ranking, natural language processing, neural networks, personalization, graph representation learning, and big data analytics.

Note to applicants:

By applying to this role, you will be considered for multiple intern roles open across our various ML teams. Please only apply once within the USA or Canada as multiple applications may delay our recruitment process.

Internships are 12 weeks paid, with fixed start dates in May or June to accommodate varying school calendars. Depending on the team, our summer internships will be located either remote or hybrid in San Francisco, Palo Alto, New York or Seattle offices.

We offer 2 internship start dates:

• 
  
• May 18, 2026 - August 7, 2026
  
• June 15, 2026 - September 4, 2026
  

What you'll do:

• 
  
• Lead your own project start to finish to contribute in cutting-edge research in machine learning and artificial intelligence that can be applied to Pinterest problems
  
• Collect, analyze, and synthesize findings from data and build intelligent data-driven models
  
• Write clean, efficient, and sustainable code
  
• Use machine learning, natural language processing, and graph analysis to solve modeling and ranking problems across discovery, ads and search
  
• Scope and independently solve moderately complex problems
  
• Demonstrate accountability for the quality and completion of your tasks and projects, collaborating with your team and seeking guidance as needed.
  

What we're looking for:

• 
  
• Working towards a PhD in Computer Science, ML, NLP, Statistics, Information Sciences or related field
  
• Proficiency in at least one systems language (Java, C++, Python) or one ML framework (Tensorflow, Pytorch, MLFlow)
  
• Experience with big data technologies (e.g., Hadoop/Spark) and scalable realtime systems that process stream data
  
• Experience in research and in solving analytical problems
  
• Strong communicator and team player with the ability to find solutions for open-ended problems.
  
• Preferred Qualifications:
  
  • 
    
  • Publications in machine learning, AI, data science, data analytics, statistics, or related technical fields
    
  • Interest in research and in applying ML to impactful real-world problems on the Pinterest product
    
  
  
  

Why Intern at Pinterest?

• 
  
• Meaningful Work: Contribute to projects that impact millions of users worldwide.
  
• Mentorship: Learn from and be guided by experienced engineers and researchers in the field.
  
• Growth and Development: Participate in professional development workshops and networking events to build your skills and connections.
  

In-Office Requirement Statement:

• 
  
• We let the type of work you do guide the collaboration style. That means we're not always working in an office, but we continue to gather for key moments of collaboration and connection
  
• This role may require you to be located near an office for in-person collaboration, and therefore may need to be located a commutable distance from one of our Pinterest offices.
  
  

At Pinterest we believe the workplace should be equitable, inclusive, and inspiring for every employee. In an effort to provide greater transparency, we are sharing the base salary range for this position. Final salary is based on a number of factors including location, travel, relevant prior experience, or particular skills and expertise.

Information regarding the culture at Pinterest and benefits available for this position can be found here.

US based applicants only

The salary for this position is $12,100 monthly.

#LI-HYBRID
#LI-EB1

Our Commitment to Inclusion:

About Pinterest:

Millions of people around the world come to our platform to find creative ideas, dream about new possibilities and plan for memories that will last a lifetime. At Pinterest, we're on a mission to bring everyone the inspiration to create a life they love, and that starts with the people behind the product.

Discover a career where you ignite innovation for millions, transform passion into growth opportunities, celebrate each other's unique experiences and embrace theflexibility to do your best work. Creating a career you love? It's Possible.

At Pinterest, AI isn't just a feature, it's a powerful partner that augments our creativity and amplifies our impact, and we're looking for candidates who are excited to be a part of that. To get a complete picture of your experience and abilities, we'll explore your foundational skills and how you collaborate with AI.

Through our interview process, what matters most is that you can always explain your approach, showing us not just what you know, but how you think. You can read more about our AI interview philosophy and how we use AI in our recruiting process here.

With more than 500 million users around the world and 300 billion ideas saved, Pinterest Machine Learning engineers build personalized experiences to help Pinners create a life they love. With just over 3,000 global employees, our teams are small, mighty, and still growing. At Pinterest, you'll experience hands-on access to an incredible vault of data and contribute large-scale recommendation systems in ways you won't find anywhere else.

What you'll do:

• 
  
• Build cutting edge technology using the latest advances in deep learning and machine learning to personalize Pinterest
  
• Partner closely with teams across Pinterest to experiment and improve ML models for various product surfaces (Homefeed, Ads, Growth, Shopping, and Search), while gaining knowledge of how ML works in different areas
  
• Use data driven methods and leverage the unique properties of our data to improve candidates retrieval
  
• Work in a high-impact environment with quick experimentation and product launches
  
• Keeping up with industry trends in recommendation systems
  

What we're looking for:

• 
  
• 4+ years of industry experience applying machine learning methods (e.g., user modeling, personalization, recommender systems, search, ranking, natural language processing, reinforcement learning, and graph representation learning)
  
• End-to-end hands-on experience with building data processing pipelines, large scale machine learning systems, and big data technologies (e.g., Hadoop/Spark)
  
• Degree in computer science, machine learning, statistics, or related field
  
• Nice to have:
  
  • 
    
  • Publications at top ML conferences
    
  • Expertise in scalable realtime systems that process stream data
    
  • Passion for applied ML and the Pinterest product
    
  • MS/PhD in Computer Science, ML, NLP, Statistics, Information Sciences, related field, or equivalent experience.
    
  
  
  

Relocation Statement:

• 
  
• This position is not eligible for relocation assistance. Visit our PinFlex page to learn more about our working model.
  

#LI-SA1

#LI-REMOTE

At Pinterest we believe the workplace should be equitable, inclusive, and inspiring for every employee. In an effort to provide greater transparency, we are sharing the base salary range for this position. The position is also eligible for equity. Final salary is based on a number of factors including location, travel, relevant prior experience, or particular skills and expertise.

Information regarding the culture at Pinterest and benefits available for this position can be found here.

Our Commitment to Inclusion:

• 
  
• Perform cell line expansion, maintenance, cryopreservation, and thawing of multiple mammalian cell lines.
  
• Prepare cell culture media with complex supplements and ensure proper cell handling procedures.
  
• Collaborate with team members to support cell culture needs for ongoing research projects.
  
• Coordinate with cross-functional teams to assess cell banking and cell culture requirements and deliver materials within timelines.
  
• Conduct and support cell line quality control procedures, including validation for experimental integrity.
  
• Maintain accurate laboratory notebooks and documentation for all experiments and lab activities.
  
• Support development of genetically engineered cell lines and in-vitro cell-based assays for oncology programs
  

• 
  
• Bachelor's degree in Molecular Biology, Cell Biology, Cancer Biology, or related life science field.
  
• Minimum 3 years of hands-on experience working with:
  
  • 
    
  • Cancer cell lines
    
  • Primary cells
    
  • Genetically engineered cell lines
    
  
  
  
• Strong expertise in aseptic techniques and mammalian cell culture.
  
• Experience handling multiple cell lines simultaneously.
  
• Proficiency in media preparation with complex supplements.
  
• Strong organizational skills, attention to detail, and record-keeping abilities.
  
• Familiarity with cell culture QC practices, including:
  
  • 
    
  • Mycoplasma testing
    
  • Cell line authentication.
    
  
  
  

• 
  
• 6+ years of hands-on experience in mammalian cell culture within the biopharmaceutical or biotechnology industry.
  
• Experience using electronic lab notebooks (ELN) for experiment documentation and workflow management.
  
• Ability to optimize and troubleshoot mammalian cell culture systems.
  
• Experience writing and maintaining Standard Operating Procedures (SOPs).
  
• Familiarity with online genetic databases and integration of phenotypic/genetic data into cell bank systems.
  
• Experience with viral and non-viral transduction or transfection methods, including:
  
  • 
    
  • Lentivirus
    
  • Retrovirus
    
  • Lipid-based systems
    
  
  
  
• Experience using laboratory instruments such as:
  
  • 
    
  • Plate readers
    
  • Cell counters
    
  • Automated western blot systems
    
  
  
  
• Ability to run basic cell-based assays and develop cell line banking protocols.
  
• Strong written and verbal communication skills.
  
• Ability to work effectively in a fast-paced environment with shifting priorities.
  

• 
  
• Support the setup and launch of the new Process Technologies & Development lab, including workspace organization, equipment installation support, and qualification readiness.
  
• Operate, maintain, and troubleshoot a broad range of primary container and analytical laboratory equipment, including:
  
  • 
    
  • Leak detection systems
    
  • Headspace analyzers
    
  • Optical and particle counting microscopes
    
  • MicroCT scanners
    
  • Automatic filling equipment
    
  • Filtration and mixing tanks
    
  • Balances and related instrumentation
    
  
  
  
• Independently refine and develop laboratory processes and equipment workflows to improve efficiency, robustness, and usability.
  
• Maintain accurate equipment logs, calibration records, and instrument readiness documentation.
  
• Ensure laboratory organization, including consumables tracking, chemical inventory, and compliance with safety, quality, and documentation requirements.
  
• Partner with Facilities, Metrology, EH&S, and cross-functional Process Development teams to support seamless lab operations and timely issue resolution.
  

• 
  
• Apply sound scientific judgment in planning and troubleshooting experimental studies.
  
• Support method development, workflow optimization, and evaluation of new technologies relevant to primary container development and characterization.
  
• Drive continuous improvement in lab workflows, equipment utilization, and operational efficiency.
  
• Maintain a culture of cleanliness, organization, and scientific excellence within the laboratory.
  

• 
  
• Bachelor's or Master's degree in Engineering, Chemistry, Biology, Pharmaceutical Sciences, or a related technical field.
  
• Hands-on laboratory experience (academic or industry) with strong familiarity in equipment operation and laboratory best practices.
  
• Demonstrated experience designing and executing experiments with strong attention to detail and scientific rigor.
  
• Excellent organizational skills with a proven ability to maintain a clean, structured, and efficient laboratory environment.
  
• Strong communication skills and ability to manage multiple priorities in a fast-paced environment.
  

• 
  
• Experience supporting laboratory setup, including equipment installation, qualification, and initial operational readiness.
  
• Familiarity with a broad range of laboratory equipment, including routine operation, troubleshooting, and maintenance.
  
• Experience with studies involving:
  
  • 
    
  • Container Closure Integrity (CCI)
    
  • Extractables and Leachables
    
  • Device-drug interface evaluations
    
  • Fill-finish operations
    
  
  
  
• Ability to design and refine lab workflows that improve efficiency and usability across teams.
  
• Prior experience working within cross-functional development teams.
  

Position Overview

The Water/Wastewater Estimator will be responsible for preparing accurate and competitive cost estimates for heavy civil infrastructure projects. This role requires strong analytical skills, in-depth knowledge of water and wastewater construction, and the ability to collaborate effectively with project managers, engineers, subcontractors, and suppliers.

Key Responsibilities

• Analyze plans, specifications, geotechnical reports, and contract documents for water and wastewater infrastructure projects
• Prepare detailed quantity takeoffs and cost estimates for treatment plants, pipelines, pump stations, and related facilities
• Solicit and evaluate subcontractor and supplier quotes
• Develop conceptual and hard-bid estimates
• Identify project risks and value engineering opportunities
• Participate in pre-bid meetings and site visits
• Maintain organized bid documentation and estimating databases
• Support project handoff to operations team upon award

Qualifications

• 5+ years of estimating experience in water/wastewater or heavy civil construction
• Strong knowledge of treatment plant construction, underground utilities, mechanical piping, and concrete structures
• Proficiency with estimating software (e.g., HCSS HeavyBid, Bluebeam, PlanSwift, or similar)
• Ability to read and interpret civil, structural, and mechanical drawings
• Strong Excel skills
• Excellent communication and organizational abilities
• Bachelor’s degree in Construction Management, Civil Engineering, or related field preferred (or equivalent experience)

What We Offer

• Competitive salary based on experience
• Performance-based bonus opportunities
• Comprehensive health, dental, and vision insurance
• 401(k) with company match
• Paid time off and holidays
• Career growth opportunities within a rapidly expanding infrastructure market