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Senior Full Stack Engineer Jobs in Massachusetts

Human Agency

Senior Full-Stack Engineer

Boston, MA · On-site

We're seeking a Senior Full-Stack Engineer to join our growing team. In this role, you'll lead development initiatives, contribute to our SaaS products, and tackle exciting challenges in backend ...

Chewy

Senior Full Stack Engineer, Sponsored Ads

Boston, MA · On-site

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

Chewy's Sponsored Ads business is growing rapidly, and we're looking for an experienced Senior Full Stack Engineer to help drive the evolution of our advertising platform. This role focuses on ...

AgZen

Senior Full Stack Engineer

Somerville, MA · On-site

$130K - $190K/yr

  • Medical

  • Dental

  • Vision

  • Retirement

  • PTO

... the full stack, developing tooling and systems for external dealers and internal product ... engineering experience building and deploying large-scale systems in production. * Strong ...

Worky

Senior Full Stack Engineer

Somerville, MA · On-site

$120 - $165/hr

  • Medical

  • Dental

  • Vision

  • Retirement

  • PTO

... the full stack, developing tooling and systems for external dealers and internal product ... engineering experience building and deploying large-scale systems in production. * Strong ...

Chewy

Senior Full Stack Engineer, Sponsored Ads

Boston, MA · On-site +1

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

Chewy's Sponsored Ads business is growing rapidly, and we're looking for an experienced Senior Full Stack Engineer to help drive the evolution of our advertising platform. This role focuses on ...

Viasat, Inc.

Senior Full Stack Engineer

Marlborough, MA · On-site

$174K - $261K/yr

What you'll do Join Viasat Government - Secure Network Systems (SNS) as a full-stack software engineer in the developing networking and cyber security products for diverse customer based. You will ...

PetsApp

Senior Full Stack Engineer

Boston, MA · On-site

$170 - $180/hr

Familiarity with data science and engineering tools such as Pandas, scikit‑learn, Airflow, Hubspot, and Confluent a plus Our Tech Stack * Backend - Django, Airflow, Postgres * Frontend - React

Blink - The Employee App

Full Stack Engineer

Boston, MA

  • Medical

  • Dental

  • Vision

  • Retirement

Boston (in office 3 days/ week) Product and Engineering Reporting to Senior Full Stack Engineer We're not just closing the digital divide; we're reconnecting distributed organisations, enabling ...

Blink - The Employee App

Full Stack Engineer

Boston, MA · On-site

  • Medical

  • Dental

  • Vision

  • Retirement

Boston (in office 3 days/ week) Product and Engineering Reporting to Senior Full Stack Engineer We're not just closing the digital divide; we're reconnecting distributed organisations, enabling ...

Blink

Full Stack Engineer

Boston, MA · On-site

$120 - $180/hr

  • Medical

  • Dental

  • Vision

  • Retirement

Boston (in office 3 days/ week) Product and Engineering Reporting to Senior Full Stack Engineer We're not just closing the digital divide; we're reconnecting distributed organisations, enabling ...

New

Blink - The Employee App

Full Stack Engineer

Boston, MA · On-site

$120 - $160/hr

  • Medical

  • Dental

  • Vision

  • Retirement

Boston (in office 3 days/ week) Product and Engineering Reporting to Senior Full Stack Engineer We're not just closing the digital divide; we're reconnecting distributed organisations, enabling ...

Scadea

Full Stack Engineer

Boston, MA · On-site

Full Stack Engineer Location: Boston, MA - 5 days a week onsite is required Length: 6-10 months Top Skills Required: Top must haves: Java & AWS - with some exposure to React is fine Must be a team ...

twenty80.io

Senior Full Stack Software Engineer

Boston, MA · On-site +1

$160K - $210K/yr

  • Medical

  • Dental

  • Vision

  • PTO

About the Role A growing technology startup is hiring a Senior Full Stack Software Engineer to help build and scale its core product. This engineer will work across the frontend and backend ...

Medium

Senior Full Stack Software Engineer

Boston, MA · On-site

$172.20 - $206.64/hr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

We are looking for an experienced Senior Full Stack Software Engineer to join our dynamic and growing team. In this role, you will play a pivotal part in designing, building, and maintaining scalable ...

Leader Bank

Senior Full Stack Developer

Arlington, MA

  • Medical

  • Dental

  • Life

  • Retirement

  • PTO

Summary We are seeking a highly motivated and versatile Senior Full Stack Developer who combines ... This role is ideal for an experienced engineer who thrives in a fast-paced environment, embraces ...

Leader Bank

Senior Full Stack Developer

Arlington, MA · On-site

$85K - $110K/yr

  • Medical

  • Dental

  • Life

  • Retirement

  • PTO

Summary We are seeking a highly motivated and versatile Senior Full Stack Developer who combines ... This role is ideal for an experienced engineer who thrives in a fast-paced environment, embraces ...

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Showing results 21-40

All JobsFull Stack Engineer JobsSenior Full Stack Engineer JobsSenior Full Stack Engineer Jobs in Massachusetts

Senior Full Stack Engineer information

See Massachusetts salary details

$48.6K

$147.2K

$208.1K

How much do senior full stack engineer jobs pay per year?

As of Aug 19, 2026, the average yearly pay for senior full stack engineer in Massachusetts is $147,186.00, according to ZipRecruiter salary data. Most workers in this role earn between $121,200.00 and $172,600.00 per year, depending on experience, location, and employer.

What is a senior full stack engineer?

Senior Full Stack Engineers are experienced software developers who are proficient in both front-end and back-end technologies. They design, build, and maintain complex web applications, overseeing the entire software development process from user interface to server-side logic and databases. In addition to coding, they often mentor junior developers, lead technical decisions, and ensure best practices are followed throughout the project lifecycle. Their broad skill set allows them to bridge the gap between different development teams and deliver cohesive, high-quality solutions.

How do senior full stack engineers balance hands-on coding with mentoring and leading team projects?

Senior Full Stack Engineers often split their time between developing complex features, reviewing code, and guiding junior team members. Alongside hands-on coding, they play a key role in architectural decisions, ensuring code quality, and fostering best practices across the team. Effective communication and delegation skills are crucial, as they frequently collaborate with product managers, designers, and other engineers to align technical solutions with business goals. This balance provides opportunities for leadership growth while keeping technical skills sharp.

What are the key skills and qualifications needed to thrive as a senior full stack engineer, and why are they important?

To thrive as a Senior Full Stack Engineer, you need deep proficiency in front-end and back-end development, strong problem-solving skills, and a solid foundation in computer science, often supported by a relevant degree or equivalent experience. Familiarity with frameworks like React or Angular, back-end technologies such as Node.js or Java, cloud services, and version control systems like Git is typically required, along with experience in CI/CD and testing tools. Excellent communication, leadership, and collaboration skills help you guide teams and coordinate across disciplines. These skills are crucial for delivering scalable, high-quality software solutions and effectively leading complex projects.

What is the difference between Senior Full Stack Engineer vs Software Developer?

AspectSenior Full Stack EngineerSoftware Developer
CredentialsBachelor's degree in CS or related field; experience often requiredBachelor's degree in CS or related field; entry-level to mid-level experience
Work EnvironmentCollaborates across front-end and back-end teams, often in agile settingsFocuses on coding, testing, and debugging software applications
Industry UsageCommon in tech companies, startups, and enterprise software firmsWidely used across various industries for software development roles

While both roles involve coding and software development, a Senior Full Stack Engineer typically has broader responsibilities across both front-end and back-end systems, often with more experience and leadership duties compared to a Software Developer, who may focus on specific parts of the software stack.

How much do senior full stack engineers make?

Senior full stack engineers typically earn between $100,000 and $160,000 annually, depending on experience, location, and company size. They often possess skills in multiple programming languages, frameworks, and tools, and may receive additional compensation such as bonuses or stock options.

What does a senior full stack engineer do?

A senior full stack engineer designs, develops, and maintains both the front-end and back-end components of web applications. They often lead technical projects, write clean code, and use tools like JavaScript, Python, or Java, along with frameworks such as React or Node.js. They also troubleshoot issues, optimize performance, and collaborate with cross-functional teams to deliver complete software solutions.

What are the most commonly searched types of Full Stack Engineer jobs in Massachusetts?

The most popular types of Full Stack Engineer jobs in Massachusetts are:

What cities in Massachusetts are hiring for Senior Full Stack Engineer jobs?

Cities in Massachusetts with the most Senior Full Stack Engineer job openings:

Infographic showing various Senior Full Stack Engineer job openings in Massachusetts as of August 2026, with employment types broken down into 95% Full Time, 2% Part Time, and 3% Contract. Highlights an 85% Physical, 6% Hybrid, and 9% Remote job distribution, with an average salary of $147,186 per year, or $70.8 per hour.

Senior Full-Stack Engineer

Human Agency

Boston, MA • On-site

Full-time, Contractor

Re-posted 22 days ago

Job description

Location: US or Canada
Type: US Applicants - Full-Time; Canadian Applicants - Independent Contractor
About Human Agency
We're scaling rapidly and have a growing pipeline of opportunities that demand exceptional talent across disciplines. Our mission is to bring on individuals, from creative producers to technical experts to entrepreneurial leaders, who can help us realize this next chapter of growth.
We are a company of doers. Leaders roll up their sleeves, teams work flat, and everyone contributes to what ships. Titles don't insulate us from feedback or basics. We invite critique, learn quickly, and keep raising the bar. The best ideas win here, no matter where they come from, because clients trust us to deliver the strongest outcomes every time.
Our clients' missions, products, and bottom lines are sacred. We immerse ourselves in their world, becoming stewards of their goals and partners in solving big problems. Every product, strategy, or asset we create must be both beautiful and functional; practical, usable, and designed for real-world impact.
Humans are our most valuable resource, and we only grow by hiring people who push us forward. Across strategy, engineering, design, data, and operations, we seek out teammates who raise the bar and make us better. Always hire up, never down.
We partner with organizations of all sizes to explore, design, and implement AI strategies that are secure, scalable, and human-centered. We believe AI should amplify human potential, not replace it and we build with that conviction in every engagement. From advisory and tooling to implementation and education, we meet clients where they are at and help them integrate AI in ways that align with their mission and values. Our goal is to empower teams to work smarter, move faster, and unlock new possibilities through thoughtful, responsible innovation.
And through it all, we lead with purpose, love, and adventure. We do meaningful work with people we care about, and we make the ride an adventure worth taking. Because at Human Agency, who we are and how we work are one and the same.
The Opportunity
At Human Agency, we are shaping the future by combining cutting-edge AI solutions with intuitive software development. We specialize in building scalable and secure SaaS applications that empower enterprise clients to solve complex problems efficiently. As part of our team, you'll work on high-impact projects at the intersection of AI, machine learning, and secure software engineering.
We're seeking a Senior Full-Stack Engineer to join our growing team. In this role, you'll lead development initiatives, contribute to our SaaS products, and tackle exciting challenges in backend architecture, frontend design, and AI/ML integrations with a particular focus on generative AI technologies.
Responsibilities
SaaS Application Development
  • Detection:
    • Develop backend algorithms to process articles, chunk content, and integrate with LLMs for predictive text generation.
    • Build APIs and services to manage and scale the application's content workflow.
  • Protection:
    • Create secure PDF upload workflows with encryption to ensure compatibility with Adobe Acrobat.
    • Integrate authentication mechanisms like Okta for enterprise customer admin management.
    • Enable data recovery, auditing capabilities, and enterprise-grade administrative tools.
AI/ML and Algorithm Development
  • Collaborate with AI/ML teams to operationalize models such as OCR (Optical Character Recognition) and generative AI-based solutions (e.g., GPT models).
  • Implement RAG (Retrieval-Augmented Generation) use cases using vector databases and data embedding techniques to enhance application functionality.
  • Design workflows for large-scale data processing that enable efficient AI integrations and create dynamic AI-first features, such as custom GPTs tailored to enterprise needs.
DevOps & Operationalization
  • Establish CI/CD pipelines and formal release structures for software delivery.
  • Conduct security evaluations to identify vulnerabilities and optimize performance across AI-driven SaaS applications.
  • Manage infrastructure and workflows for custom AI solutions, including tools like Snowflake and LangChain.
Future-Focused Development
  • Build integrations and proof-of-concept applications leveraging company-specific datasets and AI technologies.
  • Evaluate and implement tools for classification, indexing, and secure data management that incorporate the latest in generative AI advancements.
  • Support the development of enterprise-grade AI solutions, including internal AI models and custom LLMs.
Requirements
Core Technical Skills
  • Proficiency in Python and Ruby on Rails, with significant backend experience.
  • Experience in designing secure systems, including encryption workflows and document protection mechanisms.
  • Hands-on expertise in integrating generative AI tools, such as OpenAI APIs, LangChain, or Hugging Face frameworks, into SaaS applications.
  • Strong knowledge of RAG techniques, vector databases (e.g. Pinecone, Weaviate), and embedding pipelines.
  • Ability to operationalize AI/ML models and build workflows for enterprise clients.
  • Frontend development experience in modern frameworks (e.g, React, Vue), with the ability to assess and recommend appropriate tech stacks.
Nice-to-Have Skills
  • Computer vision and OCR expertise, especially for processing and indexing complex document workflows.
  • Experience with authentication systems (e.g., Okta) and enterprise administrative tools.
  • Experience in DevOps, CI/CD pipelines, and secure release management.
  • Background in security evaluations, vulnerability assessments, and tool integrations.
Other Requirements
  • Strong testing background with experience in automated and manual testing.
  • Ability to manage data recovery, audits, and compliance workflows.
  • Strong problem-solving and analytical skills, with attention to detail in complex environments.
  • Excellent communication skills and the ability to work collaboratively across teams.
Why Join Us?
  • Be part of a cutting-edge team solving complex problems in AI and SaaS development.
  • Work on impactful projects with enterprise clients and cutting-edge technologies.
  • Grow your career in a collaborative, innovative, and supportive environment.

If you're excited about working on secure, scalable systems while integrating advanced AI and ML capabilities, we'd love to hear from you.
Equal Opportunity Commitment
Human Agency is an Equal Opportunity Employer. We value diverse backgrounds and strive to build an inclusive culture where everyone feels welcomed and empowered.

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