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Full Stack Developer Contract Jobs in Chelsea, MA

Motion Recruitment

Full Stack Engineer

Cambridge, MA · On-site

Full-time, onsite opportunity for a Senior or Staff Full Stack Engineer based in Central Square, Cambridge, MA. Join a venture-backed AI startup building an AI-native expert network that helps ...

Dice

Full Stack Python Developer

Quincy, MA · On-site

Job Summary : Dice is seeking a Senior Full Stack Python Developer with experience in network infrastructure to join their development team. The role involves building scalable solutions for ...

BNY

Vice President, Full-Stack Engineer

Boston, MA · On-site

Vice President , Full-Stack Engineer At BNY, our culture allows us to run our company better and ... developer productivity, and opportunities to leverage AI-enabled tools for automation and ...

BNY

Vice President, Full-Stack Engineer

Boston, MA · On-site

$68K/yr

Vice President, Full-Stack Developer At BNY, our culture allows us to run our company better and enables employees' growth and success. As a leading global financial services company at the heart of ...

BNY

Senior Specialist, Full-Stack Engineer

Boston, MA · On-site

Senior Specialist, Full-Stack Engineer At BNY, our culture allows us to run our company better and ... and DevOps pipelines. **Experience with the Eagle product suite, including its data model ...

BNY Mellon

Vice President, Full-Stack Engineer

Boston, MA · On-site

$68K/yr

Vice President, Full-Stack Developer At BNY, our culture allows us to run our company better and enables employees' growth and success. As a leading global financial services company at the heart of ...

BNY

Vice President, Full-Stack Engineer

Boston, MA

Vice President , Full-Stack Engineer At BNY, our culture allows us to run our company better and ... developer productivity, and opportunities to leverage AI-enabled tools for automation and ...

twenty80.io

Founding Full Stack Engineer

Boston, MA · On-site +1

$150K - $190K/yr

Set up deployment pipelines, monitoring, and basic DevOps workflows * Help hire and mentor future ... Strong full stack background with modern JavaScript/TypeScript * Experience building products from ...

CivilGrid

Full Stack Engineer

Boston, MA · On-site

They are seeking a Full Stack Engineer to design and build features for their collaborative SaaS mapping platform, helping to scale the company and improve project decision-making processes.

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All JobsFull Stack Developer Contract JobsFull Stack Developer Contract Jobs in Chelsea, MA

Full Stack Developer Contract information

See Chelsea, MA salary details

$26

$64

$93

How much do full stack developer contract jobs pay per hour?

As of Jul 13, 2026, the average hourly pay for full stack developer contract in Chelsea, MA is $64.39, according to ZipRecruiter salary data. Most workers in this role earn between $53.56 and $74.18 per hour, depending on experience, location, and employer.

What are some common challenges Full Stack Developers face when working on contract projects?

As a contract Full Stack Developer, you may encounter challenges such as adapting quickly to new codebases, tools, and team workflows, since contract roles often require rapid onboarding. Balancing front-end and back-end tasks within tight deadlines can be demanding, especially when project requirements change or are not clearly defined. Additionally, frequent communication with both technical and non-technical stakeholders is essential to ensure alignment and successful project delivery. Staying organized and proactive in managing your workload will help you handle these challenges effectively.

What is a Full Stack Developer Contract?

A Full Stack Developer Contract refers to a temporary or project-based employment arrangement where a developer is responsible for both front-end and back-end aspects of web or software development. Full stack developers are skilled in multiple technologies, enabling them to handle databases, servers, systems engineering, and client-facing interfaces. Contract roles often provide flexibility for both the employer and the developer, and can range from short-term projects to longer engagements. These positions are typically filled by experienced professionals who can quickly adapt to different technologies and project needs.

What are the key skills and qualifications needed to thrive as a Full Stack Developer on contract, and why are they important?

To thrive as a Full Stack Developer on contract, you need strong proficiency in both front-end (e.g., JavaScript, HTML/CSS, frameworks like React or Angular) and back-end (e.g., Node.js, Python, Java, databases) development, typically demonstrated through a relevant degree or portfolio. Familiarity with version control systems (like Git), CI/CD pipelines, cloud platforms (AWS, Azure), and sometimes certifications in specific technologies is highly valued. Excellent problem-solving, time management, and communication skills help you collaborate effectively and deliver results within tight deadlines. These abilities ensure you can independently manage diverse project requirements and consistently deliver high-quality, scalable software solutions for clients.

What is the difference between Full Stack Developer Contract vs Front End Developer Contract?

AspectFull Stack Developer ContractFront End Developer Contract
Required SkillsProficiency in both front-end and back-end technologies, databases, server managementExpertise in HTML, CSS, JavaScript, UI/UX design, front-end frameworks
Work EnvironmentDevelops complete applications, often involved in both client and server-side tasksFocuses on user interface, visual elements, and client-side functionality
Common UsageUsed across startups, tech companies, and agencies needing versatile developersPrimarily in front-end design agencies, web development firms, and client-facing projects

Full Stack Developer Contract roles require a broad skill set covering both front-end and back-end development, making them suitable for versatile projects. Front End Developer Contract positions focus specifically on user interface and experience. Understanding these differences helps employers and freelancers choose the right role for their needs.

What are the most commonly searched types of Full Stack Developer jobs in Chelsea, MA? The most popular types of Full Stack Developer jobs in Chelsea, MA are:
What cities near Chelsea, MA are hiring for Full Stack Developer Contract jobs? Cities near Chelsea, MA with the most Full Stack Developer Contract job openings:
Full Stack Developer Contract jobs near you
Full Stack Engineer

Full Stack Engineer

Motion Recruitment

Cambridge, MA • On-site

Full-time

Medical, Dental, Vision, PTO

Re-posted 10 days ago

Job description

Job Description
Full-time, onsite opportunity for a Senior or Staff Full Stack Engineer based in Central Square, Cambridge, MA. Join a venture-backed AI startup building an AI-native expert network that helps consulting firms, investors, and enterprises access expert insights with unprecedented speed and precision. Leveraging generative AI, intelligent search, and AI-powered interviewing technology, the platform is transforming how organizations discover expertise, conduct research, and make critical business decisions. This role offers the opportunity to build the core systems powering the next generation of AI-driven knowledge services.


This is a foundational engineering role working directly alongside the CTO to build and scale core platform capabilities. You'll have significant influence over architecture, engineering standards, hiring, and product direction while contributing hands-on across the full technology stack. Ideal for an experienced startup engineer who enjoys ownership, fast-paced environments, and building AI-first products from the ground up.

Required Skills & Experience

• 7+ years of professional full-stack software engineering experience
• Strong experience building products in startup or high-growth environments
• Expertise with Python, Django, and/or FastAPI
• Strong proficiency with TypeScript and React
• Experience with PostgreSQL and modern database design
• Experience building applications on AWS
• Experience with Docker and cloud-native development practices
• Experience integrating and working with LLM APIs such as GPT, Claude, or similar models
• Strong system design, architecture, and debugging skills
• Excellent communication and cross-functional collaboration abilities

Desired Skills & Experience

• Experience building AI-native or Generative AI products
• Experience with hybrid search, retrieval systems, or knowledge platforms
• Experience mentoring engineers and influencing engineering culture
• Experience making architecture decisions in growing organizations
• Familiarity with modern ML workflows and AI infrastructure
• Experience working closely with product and design teams

What You Will Be Doing

Tech Breakdown

• 40% Backend Development (Python, APIs, Infrastructure)
• 30% Frontend Development (React, TypeScript)
• 20% Architecture & System Design
• 10% AI/LLM Integrations & Innovation

Daily Responsibilities

• 80% Hands On
• 10% Technical Leadership & Mentorship
• 10% Team Collaboration

• Design, build, and maintain scalable software systems across the full stack
• Contribute to architecture decisions that support long-term scalability and performance
• Build and enhance AI-powered product capabilities leveraging LLMs and emerging technologies
• Partner with product, design, and machine learning teams to deliver customer-facing features
• Debug and resolve complex production issues across the platform
• Help establish engineering standards, best practices, and development processes
• Provide guidance and mentorship to fellow engineers when needed
• Evaluate and implement new technologies that improve product capabilities
• Influence hiring decisions and help shape the engineering organization
• Contribute as a founding team member in building a high-performance engineering culture

The Offer

Competitive salary plus meaningful equity

You will receive the following benefits:

• Medical Insurance
• Dental Benefits
• Vision Benefits
• Paid Time Off (PTO)
• Equity Participation
• Flexible Work Arrangements
• Professional Development Opportunities

Applicants must be currently authorized to work in the United States on a full-time basis. This position does not provide sponsorship for new work visas but may support transfers of existing work authorization where applicable.

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