Jobs in San Mateo, CA

• 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 Keyfactor

Our mission is to build a connected society, rooted in trust, with identity-first security for every machine and human. Keyfactor helps organizations move fast to establish digital trust at scale - and then maintain it. With decades of cybersecurity experience, Keyfactor is trusted by more than 1,500 companiesacross the globe. We are proud to continually earn recognition as a Best Place to Work, and we achieve that through our amazing people who cultivate our culture as we grow. We hope you will trust your future with Keyfactor!

Job Title: Support Engineer, Tier 3

Location: United States; Remote, MST or PST

Experience: Senior Level

Job Function: Support

Employment Type: Full-Time

Industry: Computer and Network Security

Job Summary

The Support Engineer, Tier 3, functions as a senior individual contributor responsible for resolving the most complex and high-impact technical issues. This role provides technical leadership across the support organization, partners closely with Product and Engineering teams, and drives systemic improvements that enhance product stability, support effectiveness, and customer outcomes.

Applicants must hold US citizenship or US permanent resident status.

Job Responsibilities

Advanced Technical Resolution

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• Independently resolves critical, complex, and high-severity customer issues, including those with broad operational or customer impact.
  
• Serves as an escalation point for advanced technical issues, applying deep diagnostic expertise across multiple technical domains.
  
• Proactively identifies and addresses issues prior to customer or executive escalation.
  
• Reproduces customer issues in lab or test environments to validate root cause and confirm resolution.
  
• Builds and maintains lab environments used for advanced troubleshooting, validation, and technical enablement.
  

Subject Matter Expertise

• 
  
• Acts as a senior subject matter expert for assigned Keyfactor products, including Command and/or EJBCA.
  
• Provides expert-level guidance on PKI, cryptographic concepts, compliance considerations, and secure deployment practices.
  
• Applies broad domain knowledge to diagnose complex, non-routine issues across infrastructure, application, and security layers.
  
• Contributes technical insight related to emerging risks, architectural considerations, and support readiness.
  

Knowledge Sharing & Enablement

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• Mentors and provides technical guidance to support engineers across all tiers.
  
• Identifies knowledge gaps through case analysis and operational data and contributes to targeted training and documentation.
  
• Develops and maintains technical documentation, ensuring accuracy, clarity, and alignment with internal standards and industry best practices.
  
• Promotes consistent knowledge sharing to improve overall team capability and reduce recurring issues.
  

Systemic Improvement & Cross-Functional Collaboration

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• Identifies recurring issues and systemic deficiencies and leads efforts to implement long-term corrective actions.
  
• Partners with Product, Engineering, and Support leadership to address root causes and improve product and support processes.
  
• Provides technical input that informs product quality, platform stability, and support scalability.
  
• Represents customer impact and operational risk during cross-functional discussions and incident reviews.
  

Customer & Incident Management

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• Manages high-profile customer escalations and outages with professionalism, technical rigor, and clear communication.
  
• Communicates complex technical findings and recommendations to both technical and non-technical stakeholders.
  
• Maintains accountability for case progression, resolution quality, and documentation accuracy.
  

Minimum Qualifications, Education, and Skills

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• 3+ or more years of advanced technical support experience or demonstrated equivalent expertise in PKI or related security technologies.
  
• Demonstrated depth of expertise in one or more technical domains required to support Keyfactor products.
  
• Advanced knowledge of Windows Server and/or Linux, including IIS, ADFS, WAP, and Active Directory.
  
• Strong expertise in PKI, ADCS, certificate lifecycle management, and cryptographic principles.
  
• Proficient in SQL database analysis, including complex queries and table structure evaluation.
  
• Strong understanding of networking concepts, including firewalls, load balancers, and proxy configurations.
  
• Experience with cloud platforms such as AWS and/or Azure.
  
• Expertise in containerization and orchestration technologies (Docker, Kubernetes).
  
• Demonstrates strong verbal and written communication skills with the ability to convey complex technical information clearly and professionally.
  
• Maintains a high standard of customer focus and operational accountability.
  
• Capable of identifying root causes of complex issues and articulating clear, actionable resolutions.
  

Compensation

Salary will be commensurate with experience.

Culture, Career Opportunities and Benefits

We build teams that continually strive to get better than the day before. You will be challenged daily and given opportunities to grow personally and professionally. We balance autonomy and structure to create an entrepreneurial environment to spur creativity and new ideas.

Here are just some of the initiatives that make our culture special:

• 
  
• Second Fridays (a company-wide day off on the second Friday of every month minus November and December of 2025 due to the Holiday schedule). Please note that this benefit is subject to change.
  
• Comprehensive benefit coverage globally.
  
• Generous paid parental leave globally.
  
• Competitive time off globally.
  
• Dedicated employee-focused ambassadors via Key Contributors & Culture Committees.
  
• DIVERSE Commitment, a call to action for a more inclusive and diverse future in business, society, and technology.
  
• The Keyfactor Alliance Program to support DEIB efforts.
  
• Wellbeing resources, wellness allowance, mindfulness app free membership, Wellness Wednesdays.
  
• Global Volunteer Day, company non-profit matching, and 3 volunteer days off.
  
• Monthly Talent development and Cross Functional meetings to support professional development.
  
• Regular All Hands meetings - followed by group gatherings.
  

Our Core Values

Our core values are extremely important to how we run our business and what we look for in every team member:

Trust is paramount.

We deliver security software and solutions where trust and openness are of the highest importance for our customers. We are honest and a trusted partner in every aspect of business.

Customers are core.

We strategize, operate, and execute through a customer-centric view. We prioritize the security interests of our customers, and we act as if their data were our own.

Innovation never stops, it only accelerates.

The speed of change is accelerating. We are committed, through investment and focus, to stay ahead of the innovation curve.

We deliver with agility.

We thrive in high-paced and continually changing environments. We navigate through newly added variables, adjust accordingly, while driving towards our strategic goals.

United by respect.

Respect for all is what unites us. We promote diversity, inclusivity, equity, and acting with empathy and openness, both in our business and in our communities.

Teams make "it" happen.

Vision and goals are not individually achievable - they require teamwork. We pride ourselves in operating as a cohesive team, creating promoters and partners, and winning as one.

Keyfactor is a proud equal opportunity employer including but not limited to veterans and individuals with disabilities.

REASONABLE ACCOMMODATION: Applicants with disabilities may contact a member of Keyfactor's People team via and/or telephone at to request and arrange for accommodations at any time.

Keyfactor Privacy Notice

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• Responsible for supporting the administrative setup, coordination, and maintenance of standardized training courses across multiple learning and document management systems.
  
• Work includes preparing and organizing required source information from affiliates; duplicating and configuring training templates; updating course titles, identifiers, and hyperlinks; publishing SCORM files; loading content into the learning management system; and liaising with local affiliate teams to understand local processes for assigning training in the system.
  
• Ensures accurate linkage between source documents, courses, curricula, and assignment profiles, and supports the creation and maintenance of curricula and learner assignments across regions or cost centers.
  
• Applies established naming conventions, system rules, and procedures to ensure consistency, traceability, and data quality across systems.
  
• Maintains training records and supporting documentation in accordance with defined standards and assists with periodic updates, revisions, and re-publication as needed.
  
• Work is performed under supervision using well-defined processes and detailed instructions.
  

• 
  
• Requires strong organizational skills, attention to detail, and the ability to follow structured workflows across multiple systems.
  
• Must demonstrate clear written and verbal communication skills, a systematic approach to information management, and the ability to meet high-quality and compliance standards.
  
• May assist in user support, troubleshooting, and preparation of materials for audits or inspections related to training administration.
  

• 
  
• We are seeking a dynamic professional to support and enhance the infrastructure and operations of the Vendor Relationship Management (VRM) team.
  
• This role will be instrumental in managing projects, optimizing processes, and driving operational excellence within our vendor governance framework.
  
• The successful candidate will contribute insights and strategies to mature our ways of working and strengthen partnerships with internal stakeholders and external vendors.
  

• 
  
• Operational Support: Own the management and delivery of assigned day-to-day VRM operational activities, ensuring efficiency and accuracy.
  
• Project Leadership: Lead and support initiatives that improve vendor governance, streamline processes, and enhance collaboration across teams. Leads creation of assigned presentations or other internal materials related to VRM group.
  
• Process Optimization: Identify and implement opportunities to mature workflows and optimize vendor management practices.
  
• Stakeholder Engagement: Partner with internal teams to foster strong relationships, source feedback, and improve communication channels.
  
• Governance & Reporting: Support development and maintenance of frameworks, tools, and reporting that enable effective vendor relationship management.
  
• Insights & Continuous Improvement: Analyze processes, data and trends to provide actionable recommendations for operational and strategic improvements.
  
• Meeting & Material Support: Coordinate meetings, develop agendas, prepare presentations, and manage documentation for internal and external audiences. May support the development of select materials for external vendor meetings as determined by the team.
  

• 
  
• Strategic Thinking: Ability to see the big picture and align operational improvements with organizational goals.
  
• Collaboration: Proven ability to work well as part of a team, building strong relationships across stakeholders and fostering a culture of partnership and trust.
  
• Adaptability: Strong desire and ability to work in a fast-paced, dynamic environment and adjusts to changing priorities with ease.
  
• Problem-Solving: Applies critical thinking to identify issues and develop innovative solutions.
  
• Analytical Thinking: Demonstrates excellent technical or analytical knowledge base, with ability to assess data, processes and understanding to tell a meaningful story and message.
  
• Accountability: Takes ownership of deliverables and ensures timely, high-quality outcomes including ability to make critical decisions related to projects and tasks. Demonstrates excellent attention to detail, teamwork, and initiative; maintains confidentiality; maintains meticulous attention to project deadlines.
  
• Influence & Communication: Demonstrates excellent verbal and written communication skills to effectively and persuasively to drive alignment and action.
  
• Continuous Improvement Mindset: Proactively seeks opportunities to enhance processes and ways of working with confidence to voice opportunities.
  

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• BA/BS degree with 5+ years of relevant experience in vendor management, outsourcing, or project management within biotech or pharmaceutical industries.
  
• Strong foundation in project management and vendor governance frameworks.
  
• Previous experience in multiple aspects of Relationship Management including partnering with vendors and cross-functional stakeholders - several years and direct experience preferred.
  
• Experience in Clinical Trial Delivery or Drug Development Lifecycle preferred.
  
• Excellent communication, analytical, and organizational skills.
  
• Proficiency in Microsoft Excel, Word, PowerPoint, and SharePoint.
  

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• Primary focus on biological sample management for several clinical trials within and across development programs.
  
• Track and reconcile sample collection, processing, and shipment activities; resolve sample-related issues in collaboration with Clinical Operations.
  
• Maintain and update laboratory processing instructions and ensure consistency across programs.
  
• Navigate central laboratory sample management systems and Kite's Clinical Pharmacology Laboratory Information Management System (CPLIMS) to generate inventory reports and manage sample orders.
  
• Place sample requests in compliance with protocol and informed consent requirements, including optional biomarker analyses and subject consent tracking.
  
• Troubleshoot discrepancies in sample requests and coordinate resolution with internal teams and external specialty vendors.
  
• Support development and review of biomarker-related content in protocols, informed consent forms, and laboratory manuals.
  
• Assist with vendor management activities such as RFPs, budget reviews, and scope of work for laboratory services.
  
• Collaborate on timelines for sample analysis and data transfer to meet program deliverables.
  
• Perform quality control checks on laboratory data prior to analysis and assist with ad hoc sample analysis requests.
  
• Provide input into protocol deviation lists related to biomarker/sample handling.
  
• Address site and IRB/EC/IBC questions regarding sample management.
  
• Attend study team meetings and contribute to sample-related discussions.
  
• Light travel (approx. 10%) as needed.
  

• 
  
• Bachelor's degree in biological sciences (preferred).
  
• 2-3 years of experience in biological sample management within clinical research or equivalent.
  
• Strong understanding of sample collection, processing protocols, and shipping conditions.
  
• Familiarity with Laboratory Information Management Systems (LIMS) and central lab systems (e.g., LabLink).
  
• Excellent organizational skills with ability to multitask and prioritize effectively.
  
• Detail-oriented, self-motivated, and able to work cross-functionally.
  
• Proficient in Microsoft Office and Excel.
  

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• 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.
  

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• 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.
  

• 
  
• Interfaces with stakeholders and management to manage expectations, provide status updates on project and discuss concerns.
  
• Is accountable for ensuring resolution of concerns/issues.
  
• Develops project budget for budget request purposes, leveraging his/her team.
  
• Develops a proposed approach to address a business problem (e.g., build vs. buy),leveraging his/her team.
  
• Participates in/leads the development of RFP/RFI process.
  
• Develops project plans.
  
• Manages resources, project schedule and budget to meet deliverables.
  
• Maintains all reporting requirements as needed.
  
• Actively manages the execution of the project, including assigning work to project staff, managing project scope and project finances, and ensuring the quality of deliverables.
  
• Ensures all deliverables and commitments are met and the project is in compliance with relevant standards and methodologies.
  
• Leads basic project risk management.
  

HVAC Service Manager – Commercial

We are seeking an experienced HVAC Service Manager to lead and grow our commercial service division. This role oversees daily service operations, manages field technicians, and ensures high-quality delivery across commercial and institutional projects. The ideal candidate brings strong technical HVAC knowledge, proven leadership experience, and a track record of driving profitability, efficiency, and customer satisfaction.

Responsibilities include dispatch coordination, scheduling, budgeting, service contract oversight, technician mentorship, safety compliance, and maintaining client relationships. You will support troubleshooting on complex systems including RTUs, VAV systems, chillers, boilers, and hydronic systems while ensuring preventive maintenance agreements and service calls are executed effectively.

Qualifications: 7+ years of commercial HVAC experience, prior supervisory experience, strong financial and operational acumen, and proficiency in service management software.

Benefits: Competitive salary, performance bonuses, company vehicle or allowance, health/dental/vision insurance, 401(k) with company match, paid time off, holidays, and career advancement opportunities.

Our client is seeking a skilled Information Security & Compliance Specialist to design, implement, and maintain IT security frameworks with a focus on ISO 27001 standards. The ideal candidate will bring a depth of experience in compliance, security frameworks, and IT best practices, working closely with Managed Service Providers (MSPs) and internal stakeholders to ensure a robust security posture.

**This is a contract opportunity located in South San Francisco**

Key Responsibilities:

• Develop and implement IT security frameworks in alignment with ISO 27001 information security standards.
• Conduct internal audits of current IT procedures to identify vulnerabilities and recommend enhancements following best practices in security management.
• Collaborate with IT Managed Service Providers (MSPs) to support and execute compliance roadmaps and ensure timely achievement of security goals.
• Establish and enforce user account setup, access policies, and Single Sign-On (SSO) integrations.
• Utilize security tools such as Crowdstrike, JumpCloud, and SSO applications to manage system security, access, and endpoint protection.
• Maintain documentation related to compliance, audits, and security controls.
• Keep up to date with industry trends and regulatory changes impacting information security and compliance.

Qualifications:

• Proven experience implementing IT frameworks that comply with ISO 27001 or similar information security standards.
• Demonstrated expertise in IT compliance, security frameworks, and internal/external audit processes.
• Experience working with MSPs and coordinating third-party IT/security initiatives.
• Hands-on familiarity with Crowdstrike, JumpCloud, SSO implementations, and policy management for user security.
• Strong communication and project management skills.
• Relevant certifications preferred (e.g., ISO 27001 Lead Implementer/Auditor, CISA, CISSP).

Benefits available to contract/temporary professionals, include medical, vision, dental, and life and disability insurance. Hired contract/temporary professionals are also eligible to enroll in our company 401(k) plan. Visit for more information. Robert Half will consider qualified applicants with criminal histories in a manner consistent with the requirements of the San Francisco Fair Chance Ordinance.