Senior Fullstack Software Engineer Jobs in Boston, MA
Senior Fullstack Software Engineer jobs in Boston are concentrated in the Seaport Innovation District, Kendall Square, and the Financial District, with strong demand across healthtech, enterprise software, and fintech. Employers hiring right now include Klaviyo, WHOOP, and CarGurus. See the openings below and apply to the ones that match your experience.
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Showing 5 of 314+ Senior Fullstack Software Engineer jobs
Overview
Location & Work Schedule: These roles offer a hybrid work schedule (2 days onsite) and we are considering candidates based in
the following locations:
Portsmouth, NH, Boston, MA, Plano, TX, Indianapolis, IN and Columbus, OH with a preference towards Portsmouth and Indianapolis.
We are seeking a Senior Software Engineer with strong full stack development experience and deep familiarity with AWS services and cloud-native engineering practices. This role will design, build, test, deploy, and support modern digital and service-based solutions that improve claims experiences for customers, adjusters, and internal partners.
You’ll contribute across the full software development lifecycle, from user-facing applications to backend services, APIs, cloud infrastructure, and production support. This is a great opportunity for an engineer who thrives in a fast-moving environment, enjoys solving complex business and technical challenges, and wants to help modernize claims technology through full stack development and cloud-native engineering.
Candidate Profile
You are a strong, hands-on engineer who combines technical depth with curiosity, ownership, and a bias for action. You enjoy building robust, scalable applications and services, and you are comfortable working across frontend, backend, cloud infrastructure, and integrations.
You bring:
- Strong full stack engineering skills across modern frontend frameworks and backend services
- Experience designing and building cloud-native applications in AWS
- A problem-solving mindset and the ability to navigate ambiguity
- A focus on reliability, security, performance, and maintainability
- Strong collaboration and communication skills in Agile, cross-functional teams
- A passion for continuous improvement, mentoring others, and delivering business value
What You’ll Do
As a Senior Software Engineer, you will own medium-to-large features and services end-to-end, helping modernize and evolve our claims technology ecosystem.
Core Responsibilities
- Design, develop, test, deploy, and support full stack software solutions in an Agile product team
- Build modern web applications and backend services that support claims experiences and operational workflows
- Develop scalable APIs, microservices, and event-driven integrations using Java / Spring Boot and cloud-native patterns
- Build and maintain responsive frontend applications using JavaScript/TypeScript and modern frameworks such as React, Angular, or Vue
- Design and implement AWS-based solutions using services such as:
- Lambda
- API Gateway
- S3
- RDS / DynamoDB
- SQS / SNS
- Step Functions
- CloudWatch
- IAM
- ECS / EKS or other container-based runtime platforms
- Create and maintain secure APIs and integrations aligned with enterprise standards
- Implement secure authentication and authorization patterns leveraging enterprise identity solutions
- Design, optimize, and troubleshoot data models and application data flows across relational and cloud-native data stores
- Lead troubleshooting and root cause analysis for production issues; improve system reliability, resilience, and performance
- Build and enhance CI/CD pipelines using GitHub Actions and related automation, testing, and quality tooling
- Improve observability using tools such as Datadog and Splunk, including dashboards, alerting, metrics, logs, and tracing
- Participate in discovery, estimation, technical design, story writing, and documentation
- Contribute to engineering best practices across code quality, testing, automation, and operational readiness
- Mentor engineers and help elevate team standards and execution
What we’re looking for
- Owns medium-to-large features end-to-end, including design, implementation, testing strategy, and production readiness.
- Leads troubleshooting and performance tuning (application and database).
- Drives API/integration work (Apigee patterns, identity/security considerations).
- Improves engineering practices (CI/CD, test automation, code quality) and mentors others.
- Ensures established standards for observability, deployment, resiliency, and developer productivity across teams.
- Partners with product, architecture, and security stakeholders; makes and communicates trade-offs clearly.
- Mentors team members and ensures High-Performing Engineering standards are chosen and monitored with the team
- Strong software engineering fundamentals: clean code, testing, debugging, and design.
- Experience integrating systems via APIs and working with enterprise standards (security, logging, monitoring).
- Ability to work in Agile teams using modern delivery practices (iteration, experimentation, continuous improvement).
- Effective communication and collaboration; able to document and explain technical decisions.
- Experience and openness to utilizing AI Software Development Tools (GitHub Actions Copilot etc.)
Why this role matters
You’ll help deliver resilient, secure, and scalable claims technology that improves experiences for both customers and employees. Your work will directly support the systems and digital capabilities that help people when they need us most.
This is an opportunity to contribute to meaningful business outcomes while working in a modern engineering environment focused on cloud adoption, full stack development, operational excellence, and continuous improvement.
- Bachelor’s or Master’s degree in a technical or business discipline, or equivalent experience
- 5+ years of software engineering experience
- Strong experience designing, developing, and supporting production applications
- Demonstrated ability to work across frontend, backend, API, cloud, and operational concerns
- Experience working in enterprise environments with security, monitoring, and reliability standards
- Experience with CI/CD pipelines, automated testing, and modern DevOps practices
- Experience troubleshooting application and database performance issues
- Experience or openness to using AI-assisted software development tools
Core Technologies
-
Cloud: AWS-based solutions using services such as
- Lambda
- API Gateway
- S3
- RDS / DynamoDB
- SQS / SNS
- Step Functions
- CloudWatch
- IAM
- ECS / EKS or other container-based runtime platforms
- Backend: Java, Spring Boot
- Frontend: JavaScript, TypeScript, React / Angular / Vue
- API & Integration: REST APIs, event-driven architecture, enterprise integration patterns
- Containers/Runtime: Kubernetes, ECS, EKS, cloud-native deployment platforms
- CI/CD: GitHub Actions, automated testing, deployment pipelines
- Observability: Datadog, Splunk
- Data: SQL Server, relational databases, cloud-native data services
- Security & Identity: Enterprise authentication/authorization solutions, secure API practices
- AI Developer Tooling: GitHub Copilot, Microsoft Copilot, LibertyGPT or similar developer productivity tools
About Us
Pay Philosophy: The typical starting salary range for this role is determined by a number of factors including skills, experience, education, certifications and location. The full salary range for this role reflects the competitive labor market value for all employees in these positions across the national market and provides an opportunity to progress as employees grow and develop within the role. Some roles at Liberty Mutual have a corresponding compensation plan which may include commission and/or bonus earnings at rates that vary based on multiple factors set forth in the compensation plan for the role.
At Liberty Mutual, our goal is to create a workplace where everyone feels valued, supported, and can thrive. We build an environment that welcomes a wide range of perspectives and experiences, with inclusion embedded in every aspect of our culture and reflected in everyday interactions. This comes to life through comprehensive benefits, workplace flexibility, professional development opportunities, and a host of opportunities provided through our Employee Resource Groups. Each employee plays a role in creating our inclusive culture, which supports every individual to do their best work. Together, we cultivate a community where everyone can make a meaningful impact for our business, our customers, and the communities we serve.
We value your hard work, integrity and commitment to make things better, and we put people first by offering you benefits that support your life and well-being. To learn more about our benefit offerings please visit: https://www.libertymutualgroup.com/about-lm/careers/benefits
Liberty Mutual is an equal opportunity employer. We will not tolerate discrimination on the basis of race, color, national origin, sex, sexual orientation, gender identity, religion, age, disability, veteran's status, pregnancy, genetic information or on any basis prohibited by federal, state or local law.
Fair Chance Notices
- California
- Los Angeles Incorporated
- Los Angeles Unincorporated
- Philadelphia
- San Francisco
Overview
Location & Work Schedule: These roles offer a hybrid work schedule (2 days onsite) and we are considering candidates based in
the following locations:
Portsmouth, NH, Boston, MA, Plano, TX, Indianapolis, IN and Columbus, OH with a preference towards Portsmouth and Indianapolis.
We are seeking a Senior Software Engineer with strong full stack development experience and deep familiarity with AWS services and cloud-native engineering practices. This role will design, build, test, deploy, and support modern digital and service-based solutions that improve claims experiences for customers, adjusters, and internal partners.
You’ll contribute across the full software development lifecycle, from user-facing applications to backend services, APIs, cloud infrastructure, and production support. This is a great opportunity for an engineer who thrives in a fast-moving environment, enjoys solving complex business and technical challenges, and wants to help modernize claims technology through full stack development and cloud-native engineering.
Candidate Profile
You are a strong, hands-on engineer who combines technical depth with curiosity, ownership, and a bias for action. You enjoy building robust, scalable applications and services, and you are comfortable working across frontend, backend, cloud infrastructure, and integrations.
You bring:
- Strong full stack engineering skills across modern frontend frameworks and backend services
- Experience designing and building cloud-native applications in AWS
- A problem-solving mindset and the ability to navigate ambiguity
- A focus on reliability, security, performance, and maintainability
- Strong collaboration and communication skills in Agile, cross-functional teams
- A passion for continuous improvement, mentoring others, and delivering business value
What You’ll Do
As a Senior Software Engineer, you will own medium-to-large features and services end-to-end, helping modernize and evolve our claims technology ecosystem.
Core Responsibilities
- Design, develop, test, deploy, and support full stack software solutions in an Agile product team
- Build modern web applications and backend services that support claims experiences and operational workflows
- Develop scalable APIs, microservices, and event-driven integrations using Java / Spring Boot and cloud-native patterns
- Build and maintain responsive frontend applications using JavaScript/TypeScript and modern frameworks such as React, Angular, or Vue
- Design and implement AWS-based solutions using services such as:
- Lambda
- API Gateway
- S3
- RDS / DynamoDB
- SQS / SNS
- Step Functions
- CloudWatch
- IAM
- ECS / EKS or other container-based runtime platforms
- Create and maintain secure APIs and integrations aligned with enterprise standards
- Implement secure authentication and authorization patterns leveraging enterprise identity solutions
- Design, optimize, and troubleshoot data models and application data flows across relational and cloud-native data stores
- Lead troubleshooting and root cause analysis for production issues; improve system reliability, resilience, and performance
- Build and enhance CI/CD pipelines using GitHub Actions and related automation, testing, and quality tooling
- Improve observability using tools such as Datadog and Splunk, including dashboards, alerting, metrics, logs, and tracing
- Participate in discovery, estimation, technical design, story writing, and documentation
- Contribute to engineering best practices across code quality, testing, automation, and operational readiness
- Mentor engineers and help elevate team standards and execution
What we’re looking for
- Owns medium-to-large features end-to-end, including design, implementation, testing strategy, and production readiness.
- Leads troubleshooting and performance tuning (application and database).
- Drives API/integration work (Apigee patterns, identity/security considerations).
- Improves engineering practices (CI/CD, test automation, code quality) and mentors others.
- Ensures established standards for observability, deployment, resiliency, and developer productivity across teams.
- Partners with product, architecture, and security stakeholders; makes and communicates trade-offs clearly.
- Mentors team members and ensures High-Performing Engineering standards are chosen and monitored with the team
- Strong software engineering fundamentals: clean code, testing, debugging, and design.
- Experience integrating systems via APIs and working with enterprise standards (security, logging, monitoring).
- Ability to work in Agile teams using modern delivery practices (iteration, experimentation, continuous improvement).
- Effective communication and collaboration; able to document and explain technical decisions.
- Experience and openness to utilizing AI Software Development Tools (GitHub Actions Copilot etc.)
Why this role matters
You’ll help deliver resilient, secure, and scalable claims technology that improves experiences for both customers and employees. Your work will directly support the systems and digital capabilities that help people when they need us most.
This is an opportunity to contribute to meaningful business outcomes while working in a modern engineering environment focused on cloud adoption, full stack development, operational excellence, and continuous improvement.
- Bachelor’s or Master’s degree in a technical or business discipline, or equivalent experience
- 5+ years of software engineering experience
- Strong experience designing, developing, and supporting production applications
- Demonstrated ability to work across frontend, backend, API, cloud, and operational concerns
- Experience working in enterprise environments with security, monitoring, and reliability standards
- Experience with CI/CD pipelines, automated testing, and modern DevOps practices
- Experience troubleshooting application and database performance issues
- Experience or openness to using AI-assisted software development tools
Core Technologies
-
Cloud: AWS-based solutions using services such as
- Lambda
- API Gateway
- S3
- RDS / DynamoDB
- SQS / SNS
- Step Functions
- CloudWatch
- IAM
- ECS / EKS or other container-based runtime platforms
- Backend: Java, Spring Boot
- Frontend: JavaScript, TypeScript, React / Angular / Vue
- API & Integration: REST APIs, event-driven architecture, enterprise integration patterns
- Containers/Runtime: Kubernetes, ECS, EKS, cloud-native deployment platforms
- CI/CD: GitHub Actions, automated testing, deployment pipelines
- Observability: Datadog, Splunk
- Data: SQL Server, relational databases, cloud-native data services
- Security & Identity: Enterprise authentication/authorization solutions, secure API practices
- AI Developer Tooling: GitHub Copilot, Microsoft Copilot, LibertyGPT or similar developer productivity tools
About Us
Pay Philosophy: The typical starting salary range for this role is determined by a number of factors including skills, experience, education, certifications and location. The full salary range for this role reflects the competitive labor market value for all employees in these positions across the national market and provides an opportunity to progress as employees grow and develop within the role. Some roles at Liberty Mutual have a corresponding compensation plan which may include commission and/or bonus earnings at rates that vary based on multiple factors set forth in the compensation plan for the role.
At Liberty Mutual, our goal is to create a workplace where everyone feels valued, supported, and can thrive. We build an environment that welcomes a wide range of perspectives and experiences, with inclusion embedded in every aspect of our culture and reflected in everyday interactions. This comes to life through comprehensive benefits, workplace flexibility, professional development opportunities, and a host of opportunities provided through our Employee Resource Groups. Each employee plays a role in creating our inclusive culture, which supports every individual to do their best work. Together, we cultivate a community where everyone can make a meaningful impact for our business, our customers, and the communities we serve.
We value your hard work, integrity and commitment to make things better, and we put people first by offering you benefits that support your life and well-being. To learn more about our benefit offerings please visit: https://www.libertymutualgroup.com/about-lm/careers/benefits
Liberty Mutual is an equal opportunity employer. We will not tolerate discrimination on the basis of race, color, national origin, sex, sexual orientation, gender identity, religion, age, disability, veteran's status, pregnancy, genetic information or on any basis prohibited by federal, state or local law.
Fair Chance Notices
- California
- Los Angeles Incorporated
- Los Angeles Unincorporated
- Philadelphia
- San Francisco
See All 314+ Senior Fullstack Software Engineer Jobs in Boston
Find roles in Boston that match your experience and apply in just a few clicks.
Find JobsSenior Fullstack Software Engineer Job Market in Boston
Who's Hiring
- Klaviyo34
- WHOOP15
- CarGurus9
- Chewy8
- Whoop8
Top Industries Hiring
- Technology & Software135
- Healthcare & Medical Services26
- Science & Research22
- Investment & Asset Management21
- Consulting & Professional Services19
Senior Fullstack Software Engineer Jobs in Boston: Frequently Asked Questions
How do I get a senior fullstack software engineer job in Boston?
Focus your search on Boston's healthtech corridor, the Seaport's enterprise software startups, and the fintech firms clustered in the Financial District, as these sectors hire senior fullstack engineers most consistently. Depth in React or Node paired with cloud experience on AWS or Azure gives candidates a clear edge locally. Networking through Boston-area tech meetups and university research commercialization hubs also surfaces roles before they're widely posted.
Which companies hire senior fullstack software engineers in Boston?
Employers hiring senior fullstack software engineers in Boston right now include Klaviyo, WHOOP, and CarGurus, based on current listings on Migrate Mate as of June 2026. Boston's hiring pool mixes large healthcare systems and insurers, venture-backed Seaport startups, and established fintech and edtech firms, giving senior engineers a wide range of company sizes and product domains to choose from.
Are there remote senior fullstack software engineer jobs in Boston?
Yes, senior fullstack software engineering is well-suited to remote and hybrid arrangements since most of the work involves code, code review, and async collaboration rather than on-site presence. About 28% of senior fullstack software engineer openings tied to Boston are remote or hybrid as of June 2026, reflecting how normalized flexible work has become in the local tech market. Roles at Boston's healthtech and SaaS companies tend to lead on hybrid flexibility.
How can I get a senior fullstack software engineer job in Boston with little or no experience?
The most realistic entry path in Boston is landing a mid-level fullstack role at a growth-stage Seaport or Kendall Square startup, where smaller teams give engineers broader ownership and faster progression to senior scope. Boston's edtech companies and university-affiliated spinouts also hire junior-to-mid engineers and promote quickly. Building a public portfolio with React and a backend framework, then connecting with Boston's active developer community, meaningfully shortens the timeline to a senior offer.
Which industries hire the most senior fullstack software engineers in Boston?
Most senior fullstack software engineer openings in Boston sit in Technology & Software, Healthcare & Medical Services, and Science & Research, per current listings on Migrate Mate as of June 2026. Boston's concentration of world-class hospitals, insurers, and life sciences firms drives consistent healthtech hiring, while the city's deep venture capital activity keeps enterprise software and fintech demand strong year-round.
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See All 314+ Senior Fullstack Software Engineer Jobs in Boston
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