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Senior Full Stack Web Developer Jobs in Leominster, MA

Mastech Digital

Full Stack Developer

Merrimack, NH · On-site

- Full Stack Java Developer Position: Full Stack Java Developer Location: Hybrid (Final Interview ... modern web applications and APIs. This is a balanced backend / frontend role requiring strong ...

Teledyne

Full Stack Developer

Billerica, MA

$90K - $121K/yr

Position Summary The Full Stack Developer will play a key role in designing, developing, and ... Experience developing full-stack web applications. * Strong understanding of server-side ...

Teledyne FLIR LLC

Full Stack Developer

Billerica, MA · On-site

$90K - $121K/yr

Position Summary The Full Stack Developer will play a key role in designing, developing, and ... Experience developing full-stack web applications. * Strong understanding of server-side ...

Viasat, Inc.

Senior Full Stack Engineer

Marlborough, MA · On-site

$174K - $261K/yr

... as a full-stack software engineer in the developing networking and cyber security products for ... You'll be working with modern Web application development using the latest tools and technologies.

Varsity Tutors

Web Development Tutor

Lowell, MA · Remote

$18 - $40/hr

... full-stack development roles and software engineering careers. * Conceptual Teaching & Problem ... Familiar with web development curricula and bootcamp formats, and common challenges such as ...

BAE Systems

Eng Sr - SW

Nashua, NH · On-site

$123K - $163K/yr

We are looking for a Senior Full Stack Developer to join our team and take a leading role in the evolution of our internal business solutions and line-of-business web applications. You will start as ...

Bentley Systems

Sr. Optimizely Developer

Templeton, MA · Remote

$117K - $154K/yr

About the Role We are seeking a highly skilled Senior Optimizely Developer to serve as the ... Experience: 5+ years of full-stack web development experience, with at least 3+ years of dedicated ...

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All JobsFull Stack Web Developer JobsSenior Full Stack Web Developer JobsSenior Full Stack Web Developer Jobs in Leominster, MA

Senior Full Stack Web Developer information

See Leominster, MA salary details

$51.2K

$121.8K

$249.1K

How much do senior full stack web developer jobs pay per year?

As of Aug 31, 2026, the average yearly pay for senior full stack web developer in Leominster, MA is $121,820.00, according to ZipRecruiter salary data. Most workers in this role earn between $82,700.00 and $132,300.00 per year, depending on experience, location, and employer.

What is a senior full stack web developer?

A Senior Full Stack Web Developer is an experienced software professional who designs, develops, and maintains both the front-end and back-end components of web applications. They are proficient in multiple programming languages and frameworks, enabling them to build user interfaces, server-side logic, databases, and APIs. Senior-level developers also often lead teams, make architectural decisions, and mentor junior developers. Their expertise ensures that web applications are scalable, secure, and efficient from end to end.

What are the key skills and qualifications needed to thrive as a senior full stack web developer?

To thrive as a Senior Full Stack Web Developer, you need advanced proficiency in both front-end (e.g., JavaScript, React, HTML/CSS) and back-end (e.g., Node.js, Python, databases) technologies, typically backed by a computer science degree or equivalent experience. Expertise with version control systems like Git, cloud platforms (AWS, Azure), and familiarity with CI/CD pipelines or relevant certifications are highly valuable. Strong problem-solving, leadership, and communication skills help you effectively collaborate and mentor junior developers. These skills are crucial for delivering robust, scalable applications and leading projects across diverse technical and team environments.

How does a senior full stack web developer typically collaborate with cross-functional teams on large-scale projects?

Senior Full Stack Web Developers frequently work alongside designers, product managers, QA engineers, and other developers to deliver feature-rich web applications. They participate in sprint planning, code reviews, and architectural discussions, ensuring alignment between front-end and back-end solutions. Effective communication is crucial, as they often translate technical concepts for non-technical stakeholders and help integrate feedback from different departments. This collaborative approach not only improves product quality but also provides valuable leadership opportunities within the development team.

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

AspectSenior Full Stack Web DeveloperFront End Developer
Required SkillsProficiency in both front-end and back-end technologies, including JavaScript, HTML, CSS, server-side languages, databasesExpertise in HTML, CSS, JavaScript, and front-end frameworks like React or Angular
Work EnvironmentFull-stack development teams, both client and server-side projectsPrimarily UI/UX design, front-end frameworks, and client-side scripting
Common UsageUsed across startups, tech companies, and agencies requiring comprehensive development skillsUsed in projects focusing on user interface, visual design, and user experience

The main difference between a Senior Full Stack Web Developer and a Front End Developer lies in scope. The senior full stack role covers both front-end and back-end development, requiring broader skills and experience, while the front end developer specializes in creating and optimizing the user interface and experience.

What are popular job titles related to Senior Full Stack Web Developer jobs in Leominster, MA?

For Senior Full Stack Web Developer jobs in Leominster, MA, the most frequently searched job titles are:

What job categories do people searching Senior Full Stack Web Developer jobs in Leominster, MA look for?

The top searched job categories for Senior Full Stack Web Developer jobs in Leominster, MA are:

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Cities near Leominster, MA with the most Senior Full Stack Web Developer job openings:

Senior Full Stack Web Developer jobs near you
Infographic showing various Senior Full Stack Web Developer job openings in Leominster, MA as of August 2026, with employment types broken down into 80% Full Time, 13% Part Time, 1% Temporary, and 6% Contract. Highlights an 82% Physical, 4% Hybrid, and 14% Remote job distribution, with an average salary of $121,820 per year, or $58.6 per hour.

Senior Full Stack Engineer

Sincere Corporation

Framingham, MA • On-site

$120K - $140K/yr

Full-time

Medical, Dental, Vision, Retirement, PTO

Re-posted 23 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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