Software Engineer React Typescript Jobs in Massachusetts

Do you have the skills—and drive to join a tech team that’s working to digitally transform a trillion-dollar industry? From test-driving the latest technologies to creating intuitive consumer apps, Liberty Mutual is constantly innovating and creating industry-leading solutions that provide peace of mind for our customers worldwide. As a principal software engineer at Liberty Mutual, you’ll consult on highly complex projects and solve technical problems, while working in an agile environment that has the creative energy of a start-up—and the full backing and comprehensive benefits of a Fortune 100 company.

Join us at the center of Liberty Mutual’s digital workflow ecosystem. Our Workflow & Automation squad powers Bridgeway, our Micro Frontend platform that enables rapid, scalable React application development and onboarding of rep‑facing experiences. In this role, you’ll shape mission‑critical systems, lead a motivated team of engineers solving complex, high‑impact problems. If you’re passionate about modern engineering, and leading teams that move fast and innovate boldly, we’d love to talk.

This is a hybrid role requiring two days in the office a week in one of our five tech hubs: Columbus, Plano, Indianapolis, Boston and Portsmouth.

U.S. based role only

We encourage you to apply and bring your expertise if you’re a:

• Technical problem solver: Going far beyond simply developing error‑free source code, test scripts, components and system architectures, you’ll document and build deployment guides aimed at maintaining robust, relevant software
• Customer‑centric engineer: Putting clients’ needs first, you’ll translate customer requirements into technical applications and support the implementation of new software
• Motivated mentor: Exercise your technical chops while coaching and collaborating with junior software engineers.
• Forward thinker: Merely fixing a problem isn’t enough – using your proactive mindset and initiative, you’ll also identify opportunities to enhance performance, quality and efficiency

• Design, build, and integrate full‑stack solutions using JavaScript/TypeScript, React, Node.js, Next.js, and/or Java.
• Build and execute AI driven workflows.
• Drive our Micro Frontend (MFE) strategy, rapidly onboarding React apps into the Bridgeway MFE platform.
• Develop a deep understanding of upstream and downstream systems to maintain end‑to‑end data quality, proactively identifying risks, resolving root causes, and preventing data‑induced defects.

• Break down ambiguous technical problems, identify root causes across complex systems, and deliver incremental improvements with clear milestones.
• Collaborate with cross‑functional partners across product, design, platform, security, and data to ensure system accuracy, streamline interactions, and drive continuous improvements to reliability, performance, and customer experience.
• Establish and champion engineering best practices, mentor engineers, driving measurable improvements across SCORP engineering excellence pillars.

• Eight or more years of software engineering experience

• A strong background in business operations and strategies, including knowledge of global business, technology trends and the financial services industry
• Hands‑on involvement with layered systems architectures, designs and shared software concepts; Working knowledge of contemporary frameworks and emerging technologies
• Familiarity with functional and system integration testing, a history of practicing DevOps and SecOps

• Experience working in an agile environment

• Strong enterprise architecture and technical leadership skills, with the ability to make architectural decisions that promote scalability, resilience, maintainability, and long‑term evolution.
• Strong experience in distributed systems, event‑driven architectures, API design, microservices, integration patterns, and distributed computing for high‑throughput applications.
• Proficiency in cloud‑hosted and modern web application development using Node.js, React, TypeScript, HTML/CSS, Micro Frontends, and contemporary JavaScript frameworks; working knowledge of Java.
• Experience building and optimizing cloud‑native platforms using modern cloud services (preferably AWS), CDK, DevOps practices, GitHub Actions or equivalent CI/CD platforms, and infrastructure automation.

• Strong database and data engineering skills, including relational database design, data modeling, large‑scale data ingestion, cloud‑scale data management, governance, performance tuning, and scalability.
• Deep understanding of application and platform security, including authentication, authorization (OAuth 2.0, OpenID Connect), secure coding practices, and OWASP Top 10 principles.

• Expertise in engineering quality practices, including design thinking, test‑driven development, automated testing with Playwright, performance testing with JMeter (or equivalent), and rigorous code review processes.
• Experience implementing observability and operational excellence practices using Datadog, Splunk, monitoring, diagnostics, and reliability engineering methodologies.

• Experience building and implementing solutions leveraging Generative AI, Agentic workflows, workflow automation, and intelligent process orchestration capabilities to improve engineering productivity and business outcomes.

• Strong negotiation, facilitation, and influence skills, with the ability to align diverse stakeholders and drive consensus‑based outcomes.
• Proven analytical and problem‑solving skills, including the ability to identify systemic issues, recognize cross‑team dependencies, and translate ambiguity into actionable solutions.
• Excellent written and verbal communication skills, with the ability to convey complex technical concepts and collaborate effectively across technical and non‑technical teams.
• Demonstrated adaptability, resilience, continuous learning, mentorship, and a commitment to fostering innovation and building high‑performing engineering teams.

• A bachelor’s or master’s degree in a technical or business discipline, or equivalent experience

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