Backend Software Engineer

Description We deliver our customers peace of mind every day by helping them protect what they value most. Our passion for placing the customer at the center of everything we do is driving a transformational shift at Liberty Mutual. Operating as a tech startup within a Fortune 100 company, we are leading a digital disruption that will redefine how people experience insurance.

At Liberty, you'll thrive in a hybrid setting that fosters in-person collaboration, innovation and growth. This approach optimizes both remote and in-person interactions, enabling you to connect and ideate with your team and deepen valuable relationships across the company, while still enjoying the flexibility of remote work for focused tasks and projects.

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

You must be authorized to work in the United States without employer sponsorship now or in the future. We will not sponsor employment visas. Candidates who will require future sponsorship, including candidates on CPT/OPT/STEMOPT who will require future sponsorship, are not eligible to apply.

If you want your code to matter the moment a customer asks for a quote, this is that role. Our team builds and runs the backend services behind personal lines underwriting and pricing — the APIs and rules engines that evaluates a customer's information and turns it into a risk decision (Accept, Reject, or Pause). You'll work in Java and Spring Boot on event-driven microservices, own your services end to end from design through production support, and help modernize a platform that's actively moving from monoliths to microservices. You'll also have room to grow — mentoring teammates, shaping technical direction, and using modern AI-assisted development tooling to work more effectively.

The USRM Auto Product Tech organization is looking to fill a Backend Software Engineer role. Candidate will be at the forefront of API development, focusing on designing, implementing, and modifying RESTful and event-driven APIs that integrate seamlessly with our platform components. Leveraging your technical expertise, you will tackle complex technical challenges and deliver robust solutions that meet the diverse needs of our stakeholders.

In this position, you will be part of a mature Agile development team responsible for analyzing requirements, developing high-quality APIs, and ensuring that they adhere to best practices in API design and security. You will have the opportunity to participate in the entire software development lifecycle, from requirements gathering and design through testing, deployment, and ongoing support. Your role will also include mentoring junior team members, share your knowledge and best practices, and fostering a culture of continuous improvement and innovation within the team.

Design, build, and support event-driven microservices in Java and Spring Boot, including REST API design, versioning, and contract management. Contribute to a large, versioned business rules library, extending underwriting and rating logic while preserving backward compatibility for existing consumers. Own service quality end to end: unit and integration testing to team coverage gates, static analysis, code review, and production monitoring and incident response. Partner with product owners and pricing and underwriting domain experts to translate business requirements into technical designs. Develops efficient, maintainable, defect-free source code that meets business requirements and team standards. Collaborates on development of unit test cases. Develops test scripts. Contributes to researching technical alternatives. Conducts impact analysis. Develops component design. Participates in the production of support documentation. Interact with customers and development team to gather and define