Sign up to access all features of our service.
  • Job search
  • Favorites
  • Create a CV
    New
  • Salaries
  • Subscriptions

Senior Full-Stack Software Engineer - Frontend Focus (Contract-to-Hire)

West500 Partners

Our client is building software that helps engineering and manufacturing teams design, build, and manage complex hardware more efficiently. They're looking for a Senior Full-Stack Software Engineer with a strong frontend focus to help expand and improve a growing SaaS platform used by technical teams and external customers.

This is a frontend-leaning full-stack role, with React and TypeScript at the center of the work. You'll have ownership across the application stack, partnering with other engineers and stakeholders to build new functionality, improve the user experience, and deliver reliable software from development through production.

This is a remote role with required travel to company headquarters for onboarding and approximately one week per quarter thereafter. Candidates must be based in one of the following states California, Colorado, Florida, Indiana, Kansas, Michigan, New York, North Carolina, Oregon, South Dakota, Texas, Utah, or Washington (hybrid remote if located in the Greater Seattle area).

In this role you'll:

  • Build and deliver new product features using React, TypeScript, GraphQL, and Postgres
  • Take ownership of features from technical design through development, testing, deployment, and production support
  • Develop modern, intuitive React-based user interfaces
  • Collaborate with engineers, designers, and stakeholders to turn requirements into high-quality software
  • Work across the stack to connect frontend experiences with APIs, backend services, and data
  • Write clean, maintainable code with strong unit, integration, and end-to-end testing
  • Contribute to CI/CD improvements and engineering best practices
  • Participate in a reasonable on-call rotation supporting the SaaS platform

Ideal candidate will have:

  • 5+ years of professional software development experience
  • Deep expertise with React and TypeScript
  • Strong experience working with GraphQL APIs
  • Experience with Postgres or other relational databases
  • A strong testing discipline across unit, integration, and end-to-end testing
  • Experience owning features through the full software development lifecycle
  • Full-stack development experience, with a particular strength on the frontend
  • Strong communication and collaboration skills
  • Prior experience participating in an on-call or production support rotation

Nice to have:

  • Experience with Next.js or similar frameworks
  • Apollo, Hasura, or comparable GraphQL technologies
  • Docker, Kubernetes/ECS, and AWS
  • Hands-on CI/CD experience
  • Experience working with complex engineering, manufacturing, or other technical products

Must qualify to work in an ITAR environment (U.S. Citizen or Green Card Holder).

Apply with West500 Partners and we can discuss this opportunity further!

Vacancy posted 5 days ago
Similar jobs that could be interesting for youBased on the Senior Full-Stack Software Engineer - Frontend Focus (Contract-to-Hire) in Kent, WA vacancy
  • $158.5k - $237.7k

     ...Role summaryWe are seeking a Senior Full Stack Engineer II to join our Digital...  ...features end-to-end across frontend, GraphQL/APIs, services, and...  ...effective agent workflows for software development, share patterns...  ...role is listed below. The hiring range will vary based on factors... 
    Senior
    Front end
    Local area

    Hasbro

    Renton, WA
    16 hours ago
  • $154.35k - $231.53k

     ...Stoke Space, our commercial software platform that helps...  ...test efficiently. As a Senior Full-Stack Software Development Engineer on the Boltline by Stoke...  ...evolving environment with a focus on delivering impact...  ...employment practices, including hiring. Employment at the... 
    Senior
    Front end
    Permanent employment
    Full time
    Internship
    Shift work

    Stoke Space

    Kent, WA
    1 day ago
  •  ...Senior Electrical Project ManagerA well-established local electrical contractor is looking...  ...local contractor while staying focused on the local market.Responsibilities:Manage...  ...ownership of project budgets, schedules, contracts, and profitabilityLead project planning... 
    Contract work
    Senior
    For contractors
    Local area

    gpac

    Kent, WA
    16 hours ago
  •  ...Senior Project Manager - Commercial Relationships...  ...that is steeped full of longevity,...  ..., cost control, contract administration, and...  ...for value engineering. Provide mentoring...  ...roles with a GC, focused on $5M-$30M commercial...  ...similar construction software preferred. ~ BA... 
    Contract work
    Senior
    Full time
    For subcontractor
    Work at office
    Immediate start
    Night shift

    The Schaaf Group

    Auburn, WA
    3 days ago
  • $144.1k - $216.1k

     ...where you come in!We are looking for a Senior Software Engineer to join our Business Systems...  ...Experience with React.js or other popular frontend frameworks.Familiarity with event streaming...  ...range for this role is listed below. The hiring range will vary based on factors such... 
    Senior
    Front end
    Local area
    Worldwide

    Hasbro

    Renton, WA
    16 hours ago
  •  ...Position Summary The Senior Platform Services Engineer owns the shared...  ...common service and API contracts that keep delivery...  ...years' experience in software engineering, with...  ...familiarity (backend-for-frontend, design-system...  ...Work Schedule Full-time schedule of a minimum... 
    Senior
    Front end
    Full time

    EDI Staffing

    Renton, WA
    15 days ago
  •  ...Senior Electrical Project ManagerA well-established local electrical contractor is looking...  ...local contractor while staying focused on the local market.Responsibilities:- Manage...  ...ownership of project budgets, schedules, contracts, and profitability- Lead project planning... 
    Contract work
    Senior
    For contractors
    Local area

    gpac

    Pacific, WA
    3 days ago
  • $126.65k - $171.35k

    Experienced Software Design Engineer (P-8 Mission Systems) Company:...  .... This position will focus on supporting the Boeing...  ...partners. Upcoming contract awards have enabled team...  ...Engineer, knowledge of the full software development...  ...location, date of hire, and the applicability... 
    Contract work
    Permanent employment
    Work experience placement
    Interim role
    Relocation
    Visa sponsorship
    Work visa
    Flexible hours
    Shift work

    Boeing Company

    Kent, WA
    3 days ago
  •  ...administration onsite in Kent, WA. This Long-term Contract position is ideal for someone who thrives...  ...leadership. The role will contribute to hiring coordination, onboarding, record management, benefits support, and employee-focused programs while helping keep administrative... 
    Long term contract
    Work at office

    Robert Half

    Kent, WA
    4 days ago
  •  ...Technology Solutions, Inc. in Auburn, WA seeks Senior Planners to support fabrication teams on...  .... The role emphasizes reading engineering drawings, CMES usage, and providing shipside...  ...production issues, with 6+ months contract opportunities and potential for extension... 
    Contract work
    Senior

    Cts Technology Solutions, Inc.

    Auburn, WA
    4 days ago
  • $69k - $106k

    StartupEdge Inc. is seeking a Full Stack Developer in Kent, WA to own and accelerate a rewrite of our Angular frontend while maintaining RESTful APIs powering our core products. You will turn vague tickets into precise, testable criteria and collaborate with product and... 
    Front end

    StartupEdge Inc.

    Kent, WA
    2 days ago
  • A leading aerospace consulting firm is seeking a Senior Purchaser for a 6-month contract opportunity in Kent, WA. The ideal candidate will have over 10 years of tactical purchasing experience and a Bachelor's degree in a related field. Responsibilities include coordinating... 
    Contract work
    Senior

    Comcentric Consulting

    Kent, WA
    1 day ago
  • Intermountain Health is seeking a Senior Director of Category Management to lead the Pharmacy and Children’s Health Category Management...  .... The role requires strong leadership, strategic sourcing, and contract negotiation capabilities across suppliers and internal... 
    Contract work
    Senior
    Relocation

    Intermountain Healthcare Inc.

    Kent, WA
    2 days ago
  • The Schaaf Group is seeking a Senior Project Manager to oversee preconstruction, cost control, contract administration, and execution for high-value commercial projects in the Pacific Northwest. The ideal candidate will bring a history of successful GC work and a strong... 
    Contract work
    Senior

    The Schaaf Group

    Auburn, WA
    5 days ago
  • $68 per hour

    Numerical Control Programmer 4 (Contract) Auburn, WA, United States (On-site) Contract (1...  ...techniques, manufacturing methods, processes, software and equipment to support the design,...  ...of knowledge of reading/ interpreting engineering drawings and specifications. Describe the... 
    Contract work
    Senior
    Hourly pay

    Boeing

    Auburn, WA
    1 day ago
  • Bonneville Power Administration, located in the Eastern Engineering group (TPCF) and Western Engineering (TPCV), seeks a senior Electrical Engineer to be the key technical...  ...issues such as reliability, outages, and contract delivery points. #J-18808-Ljbffr US Bonneville... 
    Contract work
    Senior

    US Bonneville Power Administration

    Kent, WA
    2 days ago
  •  ...journey.Summary of the RoleThe Senior Civil Project Engineeris...  ...team and management of civil engineering projects from conception to completion...  ...in preparing and negotiating contracts and change orders with clients and sub-contractors.Design full site plans or with little or... 
    Contract work
    Senior
    For subcontractor
    Summer work
    Remote work
    Flexible hours

    Barghausen Consulting Engineers

    Kent, WA
    3 days ago
  • $150k - $195k

     ...supportive workplace; collaborative and employee-focused with an emphasis on quality, integrity,...  ..., such as master plans and on-call contracts, and serving client needs from small to...  ...Bachelors Degree in planning, engineering, or a related field. AICP, LEED AP, ENV... 
    Contract work
    Senior
    Work experience placement
    Work at office
    Local area

    C&S Companies

    Seatac, WA
    2 days ago
  •  ...transactions, government and public sector contracting, vendor relationships, strategic...  ...the organization as needed.Partner with senior leadership on strategic initiatives, corporate...  ...cutting edge of IT innovation, sales, engineering, operations, administration, and more,... 
    Contract work
    Senior
    For subcontractor
    Local area

    Zones

    Auburn, WA
    1 day ago
  • Boeing in Auburn, WA is seeking Experienced Employee Development Specialists for contract work through a Boeing-approved third party. The role focuses on onboarding new hires and foundational skill development in fabrication, assembly, composites, and quality systems. Responsibilities... 
    Contract work
    Shift work

    Boeing

    Auburn, WA
    3 days ago
  •  ...we live it 3-6-5! Focus on maintaining...  ...after 30 days of full-time employment including...  ...administrators, senior managers, and...  ...input to material and contracting plan. Reviews estimate...  ...compliance with engineering requirements....  ...other enterprise software applications. Excellent... 
    Contract work
    Front end
    Hourly pay
    Full time
    Temporary work
    For subcontractor

    Clean Harbors

    Kent, WA
    4 days ago
  •  ...decisions from early concept through contract award. The ideal candidate...  ...alternatives and value-focused options that preserve project...  ...operations staff, architects, engineers, and clients to maintain alignment...  ...Proficiency with estimating software, Microsoft Office... 
    Contract work
    Senior
    For contractors
    For subcontractor
    Work at office

    Robert Half

    Maple Valley, WA
    9 days ago
  • £35k per year

     ...Leave Your Mark. Salary Up to £35,000 DOE Contract Permanent Working hours 40 hours per...  ...bell, keep reading. We’re looking for a Senior Ward Nurse to step into a Clinical Area Lead...  ...wards, a dental suite, hydrotherapy, and full imaging including CT and MRI, plus... 
    Contract work
    Senior
    Permanent employment
    Trial period
    Rotating shift

    Pennard Vets

    Kent, WA
    1 day ago
  •  ...supervise production, field crews, and subcontractors, ensuring schedules, budgets, and safety standards are met while aligning with contract drawings and specifications. The role requires 8+ years in heavy civil construction and 5+ years in construction management, along... 
    Contract work
    Senior
    For subcontractor

    FlatironDragados

    Renton, WA
    4 days ago
  • Senior Manager / Associate Director (Corporate Systems) Job Description Senior Manager...  ...recommending potential solutions and/or vendors, contract management etc. Liaises closely with...  ...Technology, Computer Science, Computer Engineering or equivalent At least 20 years within... 
    Contract work
    Senior
    Flexible hours

    National University of Singapore

    Kent, WA
    2 days ago
  •  ...people-first, customer-focused and fun. As a part of our Electrical Engineering group, you will be expected...  ...system concepts from contract level requirements and Concepts...  ...Life at BlackSky for full-time benefits eligible...  ...(pro-rated based on hire date), one day of paid volunteerism... 
    Contract work
    Senior
    Permanent employment
    Full time
    For subcontractor
    Work at office
    Flexible hours

    BlackSky

    Tukwila, WA
    4 days ago
  • Cowboy Space Corporation in Kent, WA is seeking a Senior Flight Dynamics Engineer to lead the development, analysis, and validation of aerospace systems...  ..., orbital mechanics, and collaboration with flight software and guidance, navigation, and control teams to ensure robust... 
    Senior

    Telemetry Today LLC

    Kent, WA
    4 days ago
  • $160k - $185k

     ...contractor to a partner led full service mechanical...  ...that belief, we strive to hire and retain highly...  ...quality results. We are focused on providing a workplace...  ...Project Executive has the engineering group at their disposal...  ...and closing high-value contracts involving strategic... 
    Contract work
    Senior
    Full time
    For contractors
    Work at office
    Local area

    Hermanson Company

    Kent, WA
    5 days ago
  •  ...United StatesWorkplace: HybridSchedule: Full time, DayPosted: 2026-11-06FTE: 1Minimum...  ...elements of the TRICARE Management Activity contract. Understands the attitudes and values of...  ...Centers and thrive in our culture of patient-focused, whole-person care built on understanding... 
    Contract work
    Senior
    Minimum wage
    Full time
    Local area
    Shift work

    Providence Health & Services

    Renton, WA
    6 hours ago
  • $100k - $130k

     ...leading consulting firm in Renton, WA is seeking a Senior SAP Consultant with over 15 years of experience, focusing on SAP Production Planning (PP). The ideal...  ...of $100,000 to $130,000 is offered. This role is full-time and aims to enhance operational efficiency within... 
    Senior
    Full time

    The Dignify Solutions, LLC

    Renton, WA
    4 days ago

Do you want to receive more vacancies?

Subscribe and receive similar vacancies to Senior Full-Stack Software Engineer - Frontend Focus (Contract-to-Hire). Be the first to apply!