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Contractual Full Stack Developer Node Js Jobs in Massachusetts

Sincere Corporation

Senior Full Stack Engineer

Framingham, MA · On-site

$120K - $140K/yr

  • Medical

  • Dental

  • Vision

  • Retirement

  • PTO

Build full-stack features across Ruby on Rails and Next.js * Own product initiatives end-to-end ... A strong partner to DevOps, with enough understanding of system architecture, cloud infrastructure ...

Sincere Corporation

Senior Full Stack Engineer

Framingham, MA · On-site

$120K - $140K/yr

  • Medical

  • Dental

  • Vision

  • Retirement

  • PTO

Build full-stack features across Ruby on Rails and Next.js * Own product initiatives end-to-end ... A strong partner to DevOps, with enough understanding of system architecture, cloud infrastructure ...

Sincere Corporation

Senior Full Stack Engineer

Framingham, MA · On-site

$120K - $140K/yr

  • Medical

  • Dental

  • Vision

  • Retirement

  • PTO

Build full-stack features across Ruby on Rails and Next.js * Own product initiatives end-to-end ... A strong partner to DevOps, with enough understanding of system architecture, cloud infrastructure ...

twenty80.io

Founding Full Stack Engineer

Boston, MA · On-site +1

$150K - $190K/yr

  • Medical

  • Dental

  • Vision

  • PTO

Set up deployment pipelines, monitoring, and basic DevOps workflows * Help hire and mentor future ... React, TypeScript, Next.js * Backend: Node.js (Express/NestJS) or Python (Django/FastAPI)

Click Therapeutics

Senior Software Engineer

Boston, MA · Hybrid

$133K - $175K/yr

... stack centered on React Native and Node.js. You possess extensive experience architecting and ... full-stack software development experience, with a track record of shipping production-grade ...

Jobsbridge

Full Stack Web Developer

Burlington, MA

Be it core Java, full-stack Java, Web/UI designers, Big Data or Cloud or Mobility developers ... Angular.js or ReactJS with an emphasis on structuring a large web UI application using patterns ...

Jobsbridge

Full Stack Web Developer

Burlington, MA

Be it core Java, full-stack Java, Web/UI designers, Big Data or Cloud or Mobility developers ... Angular.js or ReactJS with an emphasis on structuring a large web UI application using patterns ...

Hexplora

Senior Java Full Stack Developer

Holyoke, MA · On-site

$51.50 - $66.50/hr

Title: Senior Java Full Stack Developer (Enterprise Integration & AWS) Location: Holyoke, MA(Hybrid) Seeking an experienced Senior Java Full Stack Developer with strong expertise in enterprise ...

Kelmar

Senior Full-Stack Developer

Wakefield, MA · On-site

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

Kelmar's Full-Stack Developers build and enhance web applications in Angular and Spring Boot, drive technical quality through code reviews and testing practices, and mentor junior developers as they ...

Kelmar

Senior Full-Stack Developer

Wakefield, MA · On-site

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

Kelmar's Full-Stack Developers build and enhance web applications in Angular and Spring Boot, drive technical quality through code reviews and testing practices, and mentor junior developers as they ...

Eliassen Group

Lead Full Stack Developer

Boston, MA · On-site

$70 - $80/hr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

Hybrid 4 days onsite in Boston, MA Our client seeks a Lead Full Stack Developer and offshore coordinator to serve as the primary liaison between business stakeholders, onsite leadership, and an ...

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All JobsContractual Full Stack Developer Node Js JobsContractual Full Stack Developer Node Js Jobs in Massachusetts

Contractual Full Stack Developer Node Js information

What is the difference between Contractual Full Stack Developer Node Js vs Contractual Front End Developer?

AspectContractual Full Stack Developer Node JsContractual Front End Developer
Required SkillsProficiency in Node.js, JavaScript, HTML, CSS, database managementExpertise in HTML, CSS, JavaScript, UI/UX design, front-end frameworks
Work EnvironmentBackend and frontend development, full project lifecyclePrimarily UI/UX design, client-side scripting, interface implementation
Industry UsageWeb applications, SaaS platforms, enterprise solutionsWebsite interfaces, mobile app front-ends, client-facing portals

Contractual Full Stack Developers Node Js handle both backend and frontend tasks, focusing on server-side logic with Node.js, while Contractual Front End Developers specialize in creating engaging user interfaces. The choice depends on project scope and required expertise.

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The most popular types of Full Stack Developer Node Js jobs in Massachusetts are:

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For Contractual Full Stack Developer Node Js jobs in Massachusetts, the most frequently searched job titles are:

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Cities in Massachusetts with the most Contractual Full Stack Developer Node Js job openings:

Contractual Full Stack Developer Node Js jobs near you
Infographic showing various Contractual Full Stack Developer Node Js job openings in Massachusetts as of June 2026, with employment types broken down into 2% Internship, 15% Full Time, 2% Part Time, and 81% Contract. Highlights an 79% Physical, 3% Hybrid, and 18% Remote job distribution.

Senior Full Stack Engineer

Sincere Corporation

Framingham, MA • On-site

$120K - $140K/yr

Full-time

Medical, Dental, Vision, Retirement, PTO

Re-posted 8 days ago

Job description

Sincere is looking for a Senior Full Stack Engineer to help us make our products meaningfully better. This is a high-ownership individual contributor role for a seasoned engineer who can take a broad product area, understand the customer and business needs, and ship high-quality improvements.
You will:
  • Build full-stack features across Ruby on Rails and Next.js
  • Own product initiatives end-to-end, from identifying opportunities and shaping solutions through implementation, launch, and iteration
  • Partner with product/project managers and designers to identify customer pain points, uncover product opportunities, and deliver meaningful improvements
  • Use tools like Claude Code and Codex as a core part of your workflow to explore, develop, test, and ship
  • Make practical technical decisions that balance speed, quality, maintainability, performance, and customer impact
  • Build polished, reliable, easy-to-use experiences with strong attention to UX
  • Use tools like Datadog and Mixpanel to monitor production behavior, investigate issues, and inform product decisions
  • Champion new ideas and continuously look for ways to improve our products, engineering practices, and customer experience

You are:
  • A seasoned full-stack engineer with 7+ years of professional software development experience
  • Comfortable working across our stack, including Ruby on Rails, TypeScript, React, Next.js, MySQL/Postgres, Redis, MongoDB, Sidekiq, OpenSearch, AWS, and Docker
  • Fluent with AI-assisted development tools such as Claude Code or Codex
  • Proven at building and maintaining large-scale customer-facing web applications
  • Product-minded, with strong instincts for customer needs, UX quality, business value, and technical tradeoffs
  • A self-starter who brings structure to loosely defined problems and drives them through execution
  • A strong partner to DevOps, with enough understanding of system architecture, cloud infrastructure (AWS), deployment, containerization, and infrastructure-as-code (Terraform) to collaborate effectively
  • Skilled at working in mature codebases, understanding existing architecture, and improving systems pragmatically
  • Detail-oriented, with high standards for both the code and the customer experience
  • Entrepreneurial, curious, and biased toward building, experimenting, and shipping
  • Collaborative and low-ego, with strong communication skills and pride in your craft

Benefits
Do you want to work at a growing company that invests in its team more than the average employer? Sincere is a family of brands with heart. The Company is home to Punchbowl®, Lovebird®, Timehop®, and Memento®, and builds technology that brings you closer and helps show you care to the people who matter the most. With Sincere Foundation, we support organizations that address basic needs, and envision a future where everyone has the opportunity to celebrate, recognize milestones, and honor memories. We provide a fun, casual, and innovative environment where hard work is recognized and rewarded.
What We Offer:
  • 100% Health, Dental & Vision coverage
  • 401K Plan with Profit Share
  • Annual bonus potential
  • Health & Wellness stipends
  • Paid time off plus 12 paid holidays & Summer Fridays
  • Paid parental leave
  • Childcare benefits (dependent care FSA)
  • Flexible, hybrid work environment
  • In-person, all-expenses-paid Team Summits (2X a year)
    PLEASE NOTE: Our team is primarily based in Greater Boston. We will consider applicants who reside anywhere within a 2 hour drive of the city. While this role is remote, we have occasional in-person meetings at the office (every 4-6 weeks typically).
    The base salary range for this role is $120,000 - $140,000. Actual salary may vary based on skills and experience.

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