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Contract React Frontend Developer Jobs in Massachusetts

Meridian Labs

Senior Front-End Engineer

Boston, MA · On-site

$150 - $225/hr

Build and ship production features in Inspect's front-end applications using TypeScript and React ... Collaborate with internal engineers and gather feedback from external users to inform product ...

Chewy

Software Engineer II - Frontend

Boston, MA

Our work spans React and Next.js experiences, reusable UI packages, GraphQL and REST integrations ... API contracts, data models, latency, resiliency, and system behavior when designing frontend ...

7AI

Senior Frontend Engineer

Boston, MA · On-site

$133K - $183K/yr

Required : • 7+ years of professional frontend engineering experience, with a proven track record of building and scaling production-grade web applications. • Deep expertise in React (or similar ...

Chewy

Software Engineer II - Frontend

Boston, MA · On-site

Our work spans React and Next.js experiences, reusable UI packages, GraphQL and REST integrations ... API contracts, data models, latency, resiliency, and system behavior when designing frontend ...

Vibehackers

Fullstack Software Engineer, ADK

Boston, MA · On-site

$140 - $210/hr

Implement end-to-end features from tools/MCP and orchestration backend through to the React console ... Define and maintain frontend/backend contracts, write specs other engineers build against, and ...

New

Re:Build Manufacturing

Senior Frontend Engineer

Framingham, MA · On-site +1

$126K - $173K/yr

The ideal candidate has shipped production React applications and has strong opinions on component ... Contributing to frontend architecture decisions, code reviews, and engineering best practices ...

New

Material Bank

Lead Front End Engineer

Boston, MA · On-site

We're seeking a Lead Front End Engineer to design, build, and deliver technical and product roadmap ... Proficiency in HTML, REACT and CSS, including knowledge of CSS preprocessors like SASS or LESS.

PSRTEK

Java React Developer at Boston, MA (Hybrid)

Boston, MA · On-site

$55.50 - $71.75/hr

Contract to Hire Responsibilities: - * Understand business requirement and generate the solution ... Develop and implement front-end and back-end architecture to support user interface concepts.

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Contract React Frontend Developer information

What is a contract React frontend developer?

A Contract React Frontend Developer is a software professional hired on a temporary or project basis to build and maintain user interfaces using the React JavaScript library. They focus on translating design mockups and requirements into interactive, responsive web applications. Unlike full-time employees, contract developers typically work for specific durations or on particular projects, often bringing specialized expertise to help teams meet their goals efficiently. Companies hire contract React developers to scale up their frontend development efforts or to introduce advanced capabilities without long-term commitments.

What are the key skills and qualifications needed to thrive as a contract React frontend developer?

To thrive as a Contract React Frontend Developer, you need a solid understanding of JavaScript, React.js, HTML, CSS, and experience with responsive web design, often supported by a relevant computer science degree or proven portfolio. Familiarity with tools like Redux, Git, RESTful APIs, and testing frameworks (e.g., Jest or Cypress) is typically required, and certifications in modern JavaScript frameworks can be advantageous. Strong problem-solving, adaptability, and clear communication skills help you collaborate effectively with teams and clients in dynamic contract environments. These skills and qualities ensure you can deliver high-quality, maintainable code efficiently while meeting client needs and adapting to changing project requirements.

How does a contract React frontend developer typically collaborate with design and backend teams during a project?

As a Contract React Frontend Developer, you’ll frequently work alongside UI/UX designers to translate visual concepts into interactive features, ensuring that designs are both functional and visually consistent. You'll also coordinate with backend developers to integrate APIs and align on data structures, which often involves regular stand-ups or sprint meetings. Effective communication and familiarity with collaborative tools (like Jira, Figma, or Git) are essential to keep everyone aligned, especially since contract roles may require ramping up quickly on existing team workflows.

What are the most commonly searched types of React Frontend Developer jobs in Massachusetts?

The most popular types of React Frontend Developer jobs in Massachusetts are:

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For Contract React Frontend Developer jobs in Massachusetts, the most frequently searched job titles are:

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Contract React Frontend Developer jobs near you

Senior Front-End Engineer

Meridian Labs

Boston, MA • On-site

$150 - $225/hr

Other

Posted 18 days ago

Job description

Meridian Labs is building an open source platform for the research and evaluation of large language models. We’re looking for a Senior Front-End Engineer to help build the interfaces that researchers use to interact with complex evaluation data through tools like Inspect Viewer and Inspect Viz.

You’ll help build the products that AI researchers use to make sense of model behavior—turning dense evaluation results into clear, actionable insights. This role combines front-end expertise with product sensibility and direct engagement with our user community.

Responsibilities
  • Build and ship production features in Inspect’s front-end applications using TypeScript and React
  • Own significant portions of our UI codebase and make sound technical decisions
  • Collaborate with internal engineers and gather feedback from external users to inform product direction
  • Design compelling, usable interfaces for technically sophisticated users
  • Participate in our open source community—reviewing PRs and engaging contributors
  • Communicate progress and decisions to leadership and stakeholders
Minimum Qualifications
  • 5+ years of software engineering experience
  • 3+ years building production web applications with TypeScript and React
  • Experience owning and shipping significant front-end features
  • Track record of executing projects with multiple stakeholders
  • Strong interpersonal skills and collaborative mindset
  • Bachelor’s degree in CS or related field (or equivalent experience)
Preferred Qualifications
  • Experience with Python and comfort contributing to backend systems
  • Background in data visualization or complex UI for technical users
  • Experience with open source communities
  • Familiarity with AI safety, model evaluation, or ML operations
Location

Meridian Labs is based in Boston, MA. We prefer in-person or hybrid work.

Compensation

$150,000 – $225,000 with benefits, commensurate with experience.

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