Alibaba Cloud Model Studio Coding Plan Jobs in Usa

Company Description

Edensign is building the future of AI-powered visual and spatial engine. Backed by the Harvard Innovation Labs, we’re creating next-generation intelligent systems that merge generative AI, 3D understanding, and spatial intelligence to transform how real-world spaces are visualized, staged, and experienced.

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Role Description

Full-time | Preference for Boston based candidates

We’re looking for a senior technical leader to drive the development of our core AI engine. The ideal candidate has deep experience training large generative models, including diffusion, 3D reconstruction networks, multimodal, VLM architectures. In this role, you will spearhead model training pipelines, R&D experiments, data strategy, and foundational architecture decisions.

This is an opportunity to help build the next generation of spatial AI - from multi-view consistency to 2D-to-3D-to-2D transformation and advanced scene understanding.

Key Responsibilities

• Design, train, and optimize cutting-edge generative models, including diffusion, 3D reconstruction, and multimodal/VLM architectures
• Build and manage scalable training pipelines, data curation workflows, and experiment tracking
• Lead research experiments, benchmarking, and exploration of new modeling techniques
• Architect the evolution of our spatial AI stack—from prototyping new ideas to deploying production-ready models
• Collaborate with engineering and product teams to integrate AI capabilities seamlessly into real-world workflows
• Make strategic decisions around infrastructure, GPU utilization, model efficiency, and training optimization
• Contribute to Edensign’s long-term technical roadmap and innovation direction

Qualifications

• Strong expertise in training generative models (diffusion, GANs, 3D generative models, or scene-reconstruction networks)
• Deep background in Computer Vision, Computer Graphics, 3D geometry, NeRF-like architectures, or multi-view learning
• Familiarity with node-based generative tools (e.g., ComfyUI) is a plus
• Experience with VLMs, multimodal models, grounding, or spatial reasoning is highly valuable
• Proficiency in Python and modern ML frameworks
• Hands-on experience with distributed training, GPU optimization, and large-scale experiment management
• Ability to work independently and lead technical direction in a fast-paced startup environment
• Strong analytical, problem-solving, and system design skills
• Excellent communication and collaboration skills
• Master’s or PhD in Computer Science, AI/ML, Computer Vision, or a related field
• Experience in real estate, architecture, spatial design, or spatial computing is a bonus
• Proficiency in Mandarin is preferred

Job Title: BIM Modeler II/III (Electrical)

Location: Coppell, TX (75019)

Pay: $60k - $80k+ DOE

Position Overview: Seeking an experienced BIM Modeler II/III to support complex commercial construction projects. This role plays a key part in developing and managing detailed 3D models used for coordination, design support, and project documentation. The individual in this position will act as a senior member of the modeling team, helping guide production efforts and ensuring modeling standards are followed throughout the project lifecycle.

This opportunity is ideal for someone who enjoys collaborating with project teams, mentoring junior modelers, and contributing to large-scale construction projects using advanced modeling tools.

Key Responsibilities

• Lead modeling and documentation efforts for electrical systems on construction projects.
• Develop and maintain project models using trade backgrounds and coordination data from multiple disciplines.
• Create and modify project-specific Revit families and components as needed.
• Assign and coordinate modeling tasks within the production team to ensure project deadlines are met.
• Review and verify the accuracy of models and drawings before submission to project teams.
• Collaborate with coordinators, detailers, and field teams to ensure design intent is properly represented.
• Maintain organized model structures, sheets, schedules, and documentation within the project environment.
• Assist with 3D coordination efforts and resolve conflicts with other building trades.
• Prepare project files for use by removing unnecessary backgrounds and maintaining efficient models.
• Ensure all project data and internal documentation standards are properly followed.

Qualifications

• Associate degree in Computer-Aided Drafting, Design Technology, or a related technical field preferred.
• Minimum 5 years of experience in BIM modeling, drafting, or electrical design support.
• Equivalent combinations of education, training, and industry experience may be considered.
• Strong understanding of electrical symbols, layouts, and drafting standards.

Technical Skills

• Advanced experience with Autodesk Revit including creating and modifying families, schedules, and views.
• Working knowledge of Autodesk Navisworks and coordination workflows.
• Strong understanding of 3D modeling principles and spatial coordination between trades.
• Ability to interpret 2D construction drawings and translate them into coordinated 3D models.
• Experience setting up Revit models, worksets, and collaborative workflows.
• Familiarity with Microsoft Office tools such as Outlook, Word, and Excel.
• Ability to import external documents, images, and spreadsheets into modeling environments.

Travel

• Primarily office-based with occasional visits to active construction sites.
• Occasional travel may be required (up to approximately 20%) depending on project needs.

Life/Annuity Modeling Actuary opening in Iowa.

Create actuarial models to support Statutory (US and Bermuda) reporting, valuation, and cashflow testing; design and maintain new model testing tools; support assumption updates.

Ideal candidate is FSA or ASA with 10+ years of Life or Annuity experience, including MG-ALFA or other actuarial modeling software; US GAAP valuation background preferred; Python or SQL programming experience a plus.

(PR13043A)

• Build complex, high-detail prototypes, production models, and electro-mechanical assemblies.
• Create cable assemblies from raw components
• Perform thru-hole soldering
• Apply advanced paint, surface finishing, and detailing techniques
• Perform inspections to ensure parts meet visual and dimensional specifications
• Identify fabrication challenges and develop creative solutions
• Act as a technical resource for less-experienced team members

• High School Diploma or equivalent (degree in Model Making, Industrial Design, or similar preferred)
• 2+ years of electro-mechanical assembly/soldering preferred
• 5+ years of assembly and finishing experience
• Strong understanding of materials, color theory, finishes, and assembly

• Health, dental, vision, life and short-term disability insurance
• Company paid life and long-term disability insurance
• 9 paid Holidays annually
• Employee Assistance Program (EAP)
• 401(k) match: 100% of 3% and 50% for 4% and 5%
• Education reimbursement program
• Career advancement opportunities
• Flexible Schedule
• Competitive pay scale
• Paid time off (PTO) starting at 80 hours with annual increase for each year of service

We are an Equal Opportunity Employer, making decisions without regard to race, color, religion, sex, national origin, sexual orientation, gender, gender identity, veteran status, disability, or any other protected class.

EEO is The Law - click here for more information:

We endeavor to make this site accessible to any and all users. If you would like to contact us regarding the accessibility of our website or need assistance completing the application process, please contact or email us: . You may also write to us and we will be happy to assist you with the application: Prototek, 205 Pine St., Hopkinton, NH 03229

Job Description

At Boeing, we innovate and collaborate to make the world a better place. We’re committed to fostering an environment for every teammate that’s welcoming, respectful and inclusive, with great opportunity for professional growth. Find your future with us.

The Boeing Defense, Space & Security (BDS) - Phantom Works organization is seeking a seasoned Low Observables (LO) Design & Integration Engineer to lead design and analysis activities supporting the fabrication and test of an RCS pole model.

The successful candidate will apply deep expertise in LO materials, integration, manufacturing, computational electromagnetic (CEM) modelling, and test support to design, build and test a representative pole model for an advanced next generation program in the St. Louis region.

Key Responsibilities:

• Lead detailed LO design and integration for the RCS pole model, including material selection, incorporation of advanced technologies, supplier hardware integration.

• Use computational electromagnetic solvers to model, analyze, and optimize radar cross section (RCS) and scattering behavior across required frequency bands and aspect angles in support of pre-test predictions and diagnostics.

• Work with Manufacturing to ensure proper alignment between design, analysis and fabrication of LO components.

• Define and support fabrication processes, QA checks, and build plans for LO skins, coatings, RAM treatments, and attachments; identify and mitigate manufacturability risks, provide LO liaison support to the shop.

• Develop and execute test plans for RCS characterization (anechoic chamber and outdoor ranges), including instrumentation, calibration, and measurement repeatability considerations.

• Prepare and execute data processing workflows to reduce, calibrate, and analyze measured RCS and related EM test data; combine simulation and measurement data for validation and design iteration.

• Produce clear technical documentation: design descriptions, analysis reports, test plans, test reports, procedures, and presentation materials for program reviews.

• Mentor junior engineers and support continuous improvement of LO design, test, and data processing practices.

Working Conditions and Physical Requirements:

• Hands-on support in fabrication or test setups may be required.

• Will require travel to other company locations, supplier facilities, fabrication shops, and test ranges (including anechoic chambers and outdoor ranges).

Basic Qualifications (Required Skills and Experience):

• Bachelor of Science degree in Engineering, Computer Science, Data Science, Mathematics, Physics, Chemistry or non-US equivalent qualifications directly related to the work statement

• 7+ years of professional experience working with low observable materials and technologies, including hands-on exposure to LO integration, design, manufacturing, and test.

• Demonstrated experience using computational electromagnetic solvers (e.g., FEKO, HFSS, CST, WIPL-D, CARLOS, SENTRI, XPATCH or equivalent) for design and optimization of LO systems and RCS predictions.

• Strong understanding of electromagnetic principles relevant to scattering, phenomena and Radar Cross Section.

• Proven track record supporting fabrication and testing of LO components/assemblies and correlating measurements to models.

• Proficiency in data processing and analysis of RCS/EM test data, including calibration, clutter and background rejection, and data visualization techniques.

• Excellent technical writing skills with experience producing engineering reports, test plans, and test reports.

• Effective verbal communication and collaboration skills; ability to lead technical discussions and interface with suppliers, customers, leadership and test facility personnel.

• Ability to obtain a Top Secret clearance and Special Program Access (US Only Citizenship required)

Preferred Qualifications (Desired Skills and Experience):

• Advanced degree (MS/PhD) in a relevant discipline.

• Past experience with RCS pole models, and range testing.

• Experience with material characterization techniques.

• Knowledge of LO materials and application processes, as well as nondestructive inspection methods for LO components.

• Familiarity with CAD tools and integration with CEM workflows.

Conflict of Interest:

Successful candidates for this job must satisfy the Company's Conflict of Interest (COI) assessment process.

Drug Free Workplace:

Boeing is a Drug Free Workplace (DFW) where post offer applicants and employees are subject to testing for marijuana, cocaine, opioids, amphetamines, PCP, and alcohol when criteria is met as outlined in our policies.

The Boeing 401(k) helps you save for your future, with contributions from Boeing that can help you grow your retirement savings. Our best-in-class retirement benefit features:

• Best in class 401(k) plan: we'll match your contributions dollar for dollar, up to 10% of eligible pay with Immediate 100% vesting

• Student Loan Match: The Boeing 401(k) Student Loan Match allows eligible enrolled U.S. employees to have their qualified student loan debt payments counted, along with any match-eligible contributions they make, for purposes of determining the Company Match to employees' Boeing 401(k) accounts.

Pay & Benefits:

At Boeing, we strive to deliver a Total Rewards package that will attract, engage and retain the top talent. Elements of the Total Rewards package include competitive base pay and variable compensation opportunities.

The Boeing Company also provides eligible employees with an opportunity to enroll in a variety of benefit programs, generally including health insurance, flexible spending accounts, health savings accounts, retirement savings plans, life and disability insurance programs, and a number of programs that provide for both paid and unpaid time away from work.

The specific programs and options available to any given employee may vary depending on eligibility factors such as geographic location, date of hire, and the applicability of collective bargaining agreements.

Pay is based upon candidate experience and qualifications, as well as market and business considerations.

Summary pay range: $136,850- $185,150

Applications for this position will be accepted until Apr. 01, 2026

Export Control Requirements:

This position must meet U.S. export control compliance requirements. To meet U.S. export control compliance requirements, a “U.S. Person” as defined by 22 C.F.R. §120.62 is required. “U.S. Person” includes U.S. Citizen, U.S. National, lawful permanent resident, refugee, or asylee.

Export Control Details:

US based job, US Person required

Education

Bachelor's Degree or Equivalent Required

Relocation

This position offers relocation based on candidate eligibility.

Security Clearance

This position requires an active U.S. Secret Security Clearance (U.S. Citizenship Required). (A U.S. Security Clearance that has been active in the past 24 months is considered active)

Visa Sponsorship

Employer will not sponsor applicants for employment visa status.

Shift

This position is for 1st shift

Equal Opportunity Employer:

Boeing is an Equal Opportunity Employer. Employment decisions are made without regard to race, color, religion, national origin, gender, sexual orientation, gender identity, age, physical or mental disability, genetic factors, military/veteran status or other characteristics protected by law.

What Makes a Honda, is Who makes a Honda
Honda has a clear vision for the future, and it’s a joyful one.  We are looking for individuals with the skills, courage, persistence, and dreams that will help us reach our future-focused goals. At our core is innovation. Honda is constantly innovating and developing solutions to drive our business with record success.  We strive to be a company that serves as a source of “power” that supports people around the world who are trying to do things based on their own initiative and that helps people expand their own potential. To this end, Honda strives to realize “the joy and freedom of mobility” by developing new technologies and an innovative approach to achieve a “zero environmental footprint.”

We are looking for qualified individuals with diverse backgrounds, experiences, continuous improvement values, and a strong work ethic to join our team.

If your goals and values align with Honda’s, we want you to join our team to Bring the Future!

 About this Position: 

Lead and manage New Model project for new launches in North America through cross-functional coordination and cost roll-up of automotive parts sourced within Global and North American supply base, all which have significant impact on HDMA financial performance. Effectively lead and develop cost targets and strategies to achieve NM Model cost reduction goals for assigned models, monitoring progress and performance against the project, plan versus actual.  Provide clear, concise, and accurate cost and maker layout reports to Purchasing management and New Model Cost in line with project requirements.  Monitor progress and performance against the project, plan versus actual Lead team cost correlation activity with both global and regional design functions. Support project meetings and prepare reports to communicate the status of the project within and beyond the project team.

Responsibilities include:

• Create, maintain, and manage multiple new models (13-17) project schedules to meet overall schedule milestones and deliverables
• Represent the Department independently in project team meetings, theme activity, and evaluations; communicating across DEB areas to share ideas and gain consensus on key decisions and milestones
• Independently summarize Unit activity, conduct periodic reviews with Unit, Department & Division management to confirm new model status.  This includes Supplier and Cost strategy items.
• Create and manage new model cost targets through cost correlation activity with design, effectively managing performance and implementing countermeasure plans accordingly (annual supplier spend $3.2B/$38M investment).
• Accurately roll-up cost (piece price and investment) for each NM event, and report cost and project status at New Model Evaluations to Procurement and Design Leadership
• Report departments project status, clarifying risk and path forward at New Model evaluations (Cost Evaluations, We Are Ready) to Procurement Senior Management
• Communicate and collaborate across DEB areas of the business to share ideas and reach consensus.  Share project requirements to Department team and suppliers
• Develop and manage the coordination of cost table activity for use in supplier negotiation
• Mentor associates within group on problem solving, procedures, and fostering development

Who we are seeking:

Required Work Experience:

• 8+ Years of Purchasing, Sales, Quality Control, or Engineering experience

Required Education:

• Bachelor’s Degree in Business, Supply Chain, Purchasing or equivalent relevant experience

Desired skills:

• Strong project management experience
• Managing complex and detailed projects
• Demonstrate leadership skills
• Gap analysis
• Strength in problem solving
• Setting goals and achieving results
• Catia knowledge
• Good organization
• Proficient in Microsoft (Excel, PowerPoint)
• Work cross functionally

Additional Position Factors:

• Domestic and International (1-2 weeks) travel may be required (10%)
• Willingness to work overtime due to the cyclical business needs of our NM launches (5-10 hrs.)
• Open office environment with moderate level of noise and activity.
• Hybrid work style (80% in office)
• Blended remote work is an available option based on management discretion and operating needs.
• Regular occurrence of communicating and presenting information in groups for evaluation purposes.

What differentiates Honda and makes us an employer of choice?

Total Rewards: 

• Competitive Base Salary (pay will be based on several variables that include, but not limited to geographic location, work experience, etc.)
• Regional Bonus (when applicable)
• Manager Lease Car Program (No Cost - Car, Maintenance, and Insurance included)
• Industry-leading Benefit Plans (Medical, Dental, Vision, Rx)
• Paid time off, including vacation, holidays, shutdown
• Company Paid Short-Term and Long-Term Disability 
• 401K Plan with company match + additional contribution
• Relocation assistance (if eligible)

Career Growth:

• Advancement Opportunities
• Career Mobility
• Education Reimbursement for Continued learning
• Training and Development Programs 

Additional Offerings:

• Lifestyle Account
• Childcare Reimbursement Account
• Elder Care Support
• Tuition Assistance & Student Loan Repayment
• Wellbeing Program
• Community Service and Engagement Programs
• Product Programs

Honda is an equal opportunity employer and considers qualified applicants for employment without regard to race, color, creed, religion, national origin, sex, sexual orientation, gender identity and expression, age, disability, veteran status, or any other protected factor.

Job Description

At Boeing, we innovate and collaborate to make the world a better place. We're committed to fostering an environment for every teammate that's welcoming, respectful and inclusive, with great opportunity for professional growth. Find your future with us.

The Boeing Defense, Space & Security (BDS) - Phantom Works organization is seeking a seasoned Low Observables (LO) Design & Integration Engineer to lead design and analysis activities supporting the fabrication and test of an RCS pole model.

The successful candidate will apply deep expertise in LO materials, integration, manufacturing, computational electromagnetic (CEM) modelling, and test support to design, build and test a representative pole model for an advanced next generation program in the St. Louis region.

Key Responsibilities:

• Lead detailed LO design and integration for the RCS pole model, including material selection, incorporation of advanced technologies, supplier hardware integration.
• Use computational electromagnetic solvers to model, analyze, and optimize radar cross section (RCS) and scattering behavior across required frequency bands and aspect angles in support of pre-test predictions and diagnostics.
• Work with Manufacturing to ensure proper alignment between design, analysis and fabrication of LO components.
• Define and support fabrication processes, QA checks, and build plans for LO skins, coatings, RAM treatments, and attachments; identify and mitigate manufacturability risks, provide LO liaison support to the shop.
• Develop and execute test plans for RCS characterization (anechoic chamber and outdoor ranges), including instrumentation, calibration, and measurement repeatability considerations.
• Prepare and execute data processing workflows to reduce, calibrate, and analyze measured RCS and related EM test data; combine simulation and measurement data for validation and design iteration.
• Produce clear technical documentation: design descriptions, analysis reports, test plans, test reports, procedures, and presentation materials for program reviews.
• Mentor junior engineers and support continuous improvement of LO design, test, and data processing practices.

Working Conditions and Physical Requirements:

• Hands-on support in fabrication or test setups may be required.
• Will require travel to other company locations, supplier facilities, fabrication shops, and test ranges (including anechoic chambers and outdoor ranges).

Basic Qualifications (Required Skills and Experience):

• Bachelor of Science degree in Engineering, Computer Science, Data Science, Mathematics, Physics, Chemistry or non-US equivalent qualifications directly related to the work statement
• 7+ years of professional experience working with low observable materials and technologies, including hands-on exposure to LO integration, design, manufacturing, and test.
• Demonstrated experience using computational electromagnetic solvers (e.g., FEKO, HFSS, CST, WIPL-D, CARLOS, SENTRI, XPATCH or equivalent) for design and optimization of LO systems and RCS predictions.
• Strong understanding of electromagnetic principles relevant to scattering, phenomena and Radar Cross Section.
• Proven track record supporting fabrication and testing of LO components/assemblies and correlating measurements to models.
• Proficiency in data processing and analysis of RCS/EM test data, including calibration, clutter and background rejection, and data visualization techniques.
• Excellent technical writing skills with experience producing engineering reports, test plans, and test reports.
• Effective verbal communication and collaboration skills; ability to lead technical discussions and interface with suppliers, customers, leadership and test facility personnel.
• Ability to obtain a Top Secret clearance and Special Program Access (US Only Citizenship required)

Preferred Qualifications (Desired Skills and Experience):

• Advanced degree (MS/PhD) in a relevant discipline.
• Past experience with RCS pole models, and range testing.
• Experience with material characterization techniques.
• Knowledge of LO materials and application processes, as well as nondestructive inspection methods for LO components.
• Familiarity with CAD tools and integration with CEM workflows.

Conflict of Interest:

Successful candidates for this job must satisfy the Company's Conflict of Interest (COI) assessment process.

Drug Free Workplace:

Boeing is a Drug Free Workplace (DFW) where post offer applicants and employees are subject to testing for marijuana, cocaine, opioids, amphetamines, PCP, and alcohol when criteria is met as outlined in our policies.

The Boeing 401(k) helps you save for your future, with contributions from Boeing that can help you grow your retirement savings. Our best-in-class retirement benefit features:

• Best in class 401(k) plan: we'll match your contributions dollar for dollar, up to 10% of eligible pay with Immediate 100% vesting
• Student Loan Match: The Boeing 401(k) Student Loan Match allows eligible enrolled U.S. employees to have their qualified student loan debt payments counted, along with any match-eligible contributions they make, for purposes of determining the Company Match to employees' Boeing 401(k) accounts.

Pay & Benefits:

At Boeing, we strive to deliver a Total Rewards package that will attract, engage and retain the top talent. Elements of the Total Rewards package include competitive base pay and variable compensation opportunities.

The Boeing Company also provides eligible employees with an opportunity to enroll in a variety of benefit programs, generally including health insurance, flexible spending accounts, health savings accounts, retirement savings plans, life and disability insurance programs, and a number of programs that provide for both paid and unpaid time away from work.

The specific programs and options available to any given employee may vary depending on eligibility factors such as geographic location, date of hire, and the applicability of collective bargaining agreements.

Pay is based upon candidate experience and qualifications, as well as market and business considerations.

Summary pay range: $136,850- $185,150

Applications for this position will be accepted until Apr. 01, 2026

Export Control Requirements:

This position must meet U.S. export control compliance requirements. To meet U.S. export control compliance requirements, a "U.S. Person" as defined by 22 C.F.R. §120.62 is required. "U.S. Person" includes U.S. Citizen, U.S. National, lawful permanent resident, refugee, or asylee.

Export Control Details:

US based job, US Person required

Education

Bachelor's Degree or Equivalent Required

Relocation

This position offers relocation based on candidate eligibility.

Security Clearance

This position requires an active U.S. Secret Security Clearance (U.S. Citizenship Required). (A U.S. Security Clearance that has been active in the past 24 months is considered active)

Visa Sponsorship

Employer will not sponsor applicants for employment visa status.

Shift

This position is for 1st shift

Equal Opportunity Employer:

Boeing is an Equal Opportunity Employer. Employment decisions are made without regard to race, color, religion, national origin, gender, sexual orientation, gender identity, age, physical or mental disability, genetic factors, military/veteran status or other characteristics protected by law.

The Construction Scheduler & BIM Modeler is a hybrid role responsible for integrating schedule development with model-based coordination to improve project predictability, sequencing, and execution. This position supports projects from preconstruction through closeout by combining Critical Path scheduling with BIM coordination, clash detection, and 4D planning.

This role works closely with Project Managers, Superintendents, Preconstruction, and trade partners to ensure projects are delivered on time, fully coordinated, and aligned with company standards for safety, quality, and accountability.

Essential Functions/Job Responsibilities:

To perform this job successfully, an individual must be able to perform each essential duty satisfactorily, with or without special accommodation.

Key Responsibilities

Scheduling (CPM / Project Controls)

• Develop and maintain baseline CPM schedules during preconstruction
• Build detailed construction schedules including phasing and sequencing
• Identify critical path activities and long-lead procurement items
• Lead schedule coordination meetings with internal teams and subcontractors
• Provide bi-weekly or monthly schedule updates
• Develop recovery schedules when delays occur
• Perform time impact analysis when needed
• Create executive-level schedule reporting dashboards
• Support claims documentation related to schedule impacts

BIM Modeling & Coordination

• Develop and maintain 3D BIM models for coordination and planning
• Perform clash detection and facilitate trade coordination meetings
• Integrate schedule into model for 4D sequencing visualization
• Support quantity takeoffs and model-based estimating
• Produce coordination drawings and assist with shop drawing review
• Maintain BIM standards and naming conventions
• Assist field teams with model access and real-time updates
• Support as-built modeling and closeout documentation

Qualifications

• Bachelor’s degree in construction management, Engineering, Architecture, or related field (preferred)
• 3–5 years of commercial construction experience
• Proficiency in:
• Primavera P6 or Microsoft Project
• Autodesk Revit
• Strong understanding of construction sequencing and field operations
• Ability to read and interpret plans and specifications
• Experience with healthcare or complex commercial coordination preferred
• Excellent communication and analytical skills

This job description outlines the primary and recurring responsibilities of this position. It is not intended to be an exhaustive list of all duties, responsibilities, or tasks that may be required. The individual in this role will regularly perform additional related assignments, special projects, and other duties as directed by company leadership, including the Director of Operations, Preconstruction Manager, and/or other designated supervisors.

South Carolina is an Employment-At-Will state. This job description does not constitute an employment agreement or contract. Management reserves the exclusive right to modify, revise, or update this job description at any time, with or without notice.