Senior Full Stack Software Engineer - Claims Technology

Liberty Mutual offers a hybrid, Portsmouth, NH based role that enables you to design and deliver cloud-native, full‑stack solutions for modernizing claims technology. You will collaborate in an Agile product team, employing Java with Spring Boot, contemporary frontend frameworks, and AWS to create impactful systems. The compensation range is USD 106,000 to 197,000 per year, and the company provides comprehensive benefits, workplace flexibility, professional development opportunities, and engagement through Employee Resource Groups to support growth and inclusion.

Responsibilities

• Design, develop, test, deploy, and support full‑stack software within an Agile product team.
• Build modern web applications and backend services that power claims experiences and operational workflows.
• Develop scalable APIs, microservices, and event‑driven integrations using Java / Spring Boot and cloud‑native patterns.
• Craft responsive frontend applications with JavaScript or TypeScript and frameworks such as React, Angular, or Vue.
• Architect and implement AWS based solutions with services like Lambda, API Gateway, S3, RDS / DynamoDB, SQS / SNS, Step Functions, CloudWatch, IAM, and container platforms such as ECS / EKS.
• 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 stores.
• Lead troubleshooting and root‑cause analysis for production issues to improve reliability, resilience, and performance.
• Build and enhance CI/CD pipelines using GitHub Actions and related automation, testing, and quality tooling.
• Improve observability through tools like Datadog and Splunk with dashboards, alerts, metrics, logs, and tracing.
• Participate in discovery, estimation, technical design, story writing, and documentation.
• Contribute to engineering best practices around code quality, testing, automation, and operational readiness.
• Mentor engineers and help raise team standards and execution across initiatives.

Requirements

• Own medium‑to‑large features end to end, including design, implementation, testing strategy, and production readiness.
• Lead troubleshooting and performance tuning for applications and databases.
• Drive API and integration work with emphasis on patterns such as Apigee and identity/security considerations.
• Elevate engineering practices in CI/CD, test automation, and code quality while mentoring others.
• Ensure observability, deployment discipline, resiliency, and developer productivity standards across teams.
• Collaborate with product, architecture, and security stakeholders; communicate trade‑offs clearly.
• Mentor team members and uphold High‑Performing Engineering standards within the group.
• Solid software engineering fundamentals: clean code, testing, debugging, and thoughtful design.
• Experience integrating systems via APIs and adhering to enterprise security, logging, and monitoring standards.
• Ability to work in Agile teams using modern delivery practices and iterate toward continuous improvement.
• Effective communication and collaboration; capable of documenting and explaining technical decisions.
• Experience or openness to AI assisted development tools (for example GitHub Actions Copilot or similar).
• Bachelor’s or Master’s degree in a technical or business field, or equivalent experience.
• 5+ years of software engineering experience, with demonstrated ability to design, develop, and support production applications.
• Proven track record delivering across frontend, backend, API, cloud, and operational concerns in enterprise settings with security, monitoring, and reliability standards.
• Experience with CI/CD pipelines, automated testing, and modern DevOps practices.

Technologies

• AWS, Lambda, API Gateway, S3, RDS, DynamoDB, SQS, SNS, Step Functions, CloudWatch, IAM
• ECS, EKS, Java, Spring Boot
• JavaScript, TypeScript, React, Angular, Vue
• REST APIs, Kubernetes, GitHub Actions
• Datadog, Splunk, SQL Server
• Apigee, GitHub Copilot, Microsoft Copilot, LibertyGPT

Benefits

• Comprehensive benefits
• Workplace flexibility
• Professional development opportunities
• Opportunities provided through Employee Resource Groups