Full Stack 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, and Boston, MA.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.Job Introduction:We are seeking a Full Stack Software Engineer to join the Global Enterprise Services team within Global Finance Tech (GFT). In this role, you will be on the Jet Setters squad, helping design, build, and deliver back-end and full-stack applications. The Jet Setters squad owns a portfolio of 22 GFT products, including the Reservation System, Contracts Portal, Non-Employee Portal, Corporate Aviation Flight Approvals, and Business Impact Analysis (BIA). As an engineer on the squad, you will partner with product owners, business partners, and fellow engineers to deliver secure, reliable, and scalable solutions including AI-powered capabilities that enhance user experience and operational efficiency. You will develop features end to end with guidance from more experienced engineers, grow your technical depth, and help uphold the engineering standards that keep our products healthy. About the job:Design and develop application features and components, contributing to technical design discussions within the squad's portfolio.Partner with the squad's senior engineers, principal engineer, and solutions engineer to apply shared patterns, frameworks, and reusable components.Participate in code and design reviews, providing and receiving constructive feedback.Apply engineering guidelines, standards, and best practices, and suggest improvements where you see opportunities.Build and maintain automated testing, CI/CD, and observability for the products the squad owns.Perform impact analysis and technical solutioning for assigned changes, escalating complex trade-offs as needed.Research technical alternatives for loosely defined problems and share recommendations with the team.Provide production support, including incident triage, root cause analysis, and defect resolution.Create and maintain technical specifications, design documentation, and production support artifacts.Contribute to the development and integration of AI-powered features and capabilities across existing and new product lines.Work with product owners and business partners to translate business needs into well-scoped technical work and estimates Qualifications Bachelor's degree in technical or business discipline.Minimum 3 + years of Full Stack Engineering experience.Working knowledge of object-oriented design patterns and common architectural patterns.Hands-on experience with several of the following: TypeScript, React, Node.js, AWS Lambda, AWS S3, SQL, Spring Boot, GitHub Actions.Effective user of GenAI development tools, with the ability to accelerate personal productivity.Experience contributing to and supporting production applications.Working knowledge of IT concepts, strategies, and methodologies.Exposure to Agile methodologies (e.g., Scrum).Familiarity with CI/CD pipelines and automated testing practices.Ability to collaborate effectively with engineering, product, and business partners.Strong analytical and problem-solving skills, with a willingness to take ownership and show initiative.Good oral and written communication skills, including the ability to explain technical concepts to nontechnical audiences.Team-oriented, with strong collaboration, prioritization, and adaptability skills.Eagerness to learn, seek feedback, and grow technical and domain expertise.Nice to Have — AI & Emerging TechnologiesFamiliarity with AI/ML concepts and how they apply to software product development.Exposure to Large Language Model (LLM) APIs (e.g., OpenAI, Azure OpenAI, AWS Bedrock).Awareness of Retrieval-Augmented Generation (RAG) patterns, including vector databases and embedding models.Exposure to AI orchestration frameworks.Familiarity with prompt engineering techniques and best practices.Awareness of responsible AI principles, including bias, explainability, and data privacy considerations.Experience building or consuming APIs and microservices in a cloud-native environment (AWS preferred).Experience with GitHub Copilot or similar products such as Claude Code. 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: 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 NoticesCaliforniaLos Angeles IncorporatedLos Angeles UnincorporatedPhiladelphiaSan FranciscoJob SummaryID: 2026-261933Position Type: Full-TimeMinimum Salary: USD $83,000.00/Yr.Maximum Salary: USD $154,000.00/Yr.Typical Starting Salary: $97,000 - $138,000Flexible Time Off Annual Accrual - days: 20