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Location
Hybrid (Boston, United States)
Seniority
Principal · 8+ years exp
Visa
H-1B filings in 12 months: 42 · for this role: 4 · green card filings: 5

Confirmed on the employer's own hiring board on Nov 12, 2026. First seen by Alion on Nov 12, 2026. Liberty Mutual Group scores A on the Alion truth index.

Overview
Company
Impact
Profile match
Headquartered in Boston, Massachusetts, Liberty Mutual Group is a leading global insurer and one of the largest property and casualty insurance providers in the world. Founded in 1912, the company offers a comprehensive range of personal, commercial, and specialty insurance products alongside reinsurance and financial solutions. Operating across dozens of countries, it serves millions of clients worldwide by providing essential risk management services and financial protection.

Description

Join us as a Principal Engineer and help shape the future of our GRS Billing platform. You'll be the hands-on technical leader for a team modernizing a large, business-critical portfolio, moving legacy applications to cloud-native, API-first, event-driven architectures on AWS. This is a highly visible role where you will set technology standards, mentor engineers across the organization, and see your designs go into production, directly improving the reliability and speed of the products our customers and employees rely on every day.

This role has a hybrid work schedule (2 days onsite) and we are considering candidates based in Portsmouth, NH or Boston, MA or Plano, TX

Hiring Manager: Doreen Gantt, Manager Engineering, GRS Billing Solutions

Candidate will be responsible for technical design and development of cross-functional, multi-platform applications that solve complex business problems. The role will be a highly visible hands-on technology driver supporting platform product development by creating innovative solutions, as well as driving solutions that modernize, stabilize, and support the growth of our portfolio. You will interact with business and tech teams and focus on solution design, development, debugging and performance tuning.

About the job:

  • Develop modern enterprise-level applications in the cloud.
  • Lead & mentor the technical design, development, and integration of solutions using existing and emerging technology platforms.
  • Influence and coach the broader technical team to help push best practices and understanding of modern design and development practices.
  • Define technology standards, guidelines, and coding practices for the platform.
  • Create architectures for large-scale web-based applications and technology
  • solutions, by collaborating with other technical leads and architects
  • Become a subject matter expert and gain a deep understanding of the Platform Application and Infrastructure framework.
  • Work closely with cross-functional teams and applicable vendors.
  • Hands-on development with a focus on application modernization, site reliability, containerization, and building appropriate API layers in Java Spring Boot, Node.js, and other distributed technologies.
  • Participate in critical production issues, driving teams towards incident & problem ticket closure.
  • Participate in fit/gap analysis of requirements, help manage user expectations on feature deliverables, provide tactical and strategic options to address issues and technical debt, and develop code to modern standards.

Qualifications

  • Bachelor's Degree in technical discipline or equivalent experience.
  • Minimum 8 + years of Full Stack Development experience primarily using the following technologies AWS (Lambda, Glue, DyanamoDB), Java, Spring Boot, JavaScript (NodeJS, Angular, React), Git/GitHub
  • Solid understanding of cloud technologies & architecture patterns (serverless, microservice, event-driven)
  • Experience with API development using NodeJS and TypeScript/JavaScript
  • Experience with application observability tools, e.g., DataDog.
  • Extensive professional experience developing applications using Java (Java 8+ / 11 / 17).
  • Hands-on experience with Spring / Spring Boot, including RESTful services and dependency injection.
  • Experience building and consuming APIs (REST, JSON, OpenAPI).
  • Solid understanding of multithreaded programming, concurrency, and performance tuning.
  • Experience with relational databases (Oracle, PostgreSQL, MySQL) and ORM frameworks such as Hibernate/JPA.
  • Familiarity with CI/CD pipelines, automated testing, and version control (Git) and GitHub Actions.
  • Strong troubleshooting skills with the ability to debug and resolve complex issues in production systems.
  • A design thinking, test-driven development, and shift-left mindset.
  • Ability to mentor others and raise a team's technical capabilities.
  • Hands-on involvement with layered systems architectures, designs and shared software concepts.
  • Experience working in an agile environment.
  • Excellent negotiation, facilitation and consensus-building capabilities.
  • Strong leadership, coaching and mentoring skills.
  • Proven ability to speak to varying levels of the organization and successfully collaborate across the organization.
  • Ability to work collaboratively with Agile methodologies (Scrum, Kanban) and cross-functional teams (Product Owners, Software Engineers, Test Engineers) to drive technology decisions and support engineering excellence.
  • Openness and adaptability to respond to fast-moving circumstances.
  • Excellent oral and written communication skills.

Employees may apply for a new role after completing 12 months of employment in their current position.

Employees should review all role requirements and apply only for positions for which they are eligible. Hiring processes may vary by country, including differences in procedures, requirements, and timelines. For country-specific details, please consult your local recruiting / HR team.

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