Principal Software Engineer

Description

• Collaborate with geographically dispersed teams to drive full cycle end-to-end development to deliver complex software solutions.
• Work in an Agile environment with business stakeholders, Product Owner, Solutions Engineer, and other software engineers to review and refine stories and execute on them using excellent engineering practices.
• Perform hands-on development and problem resolution, write clean, maintainable code, and perform peer code-reviews.
• Embrace and model engineering excellence and best practices.
• Contribute to the development and growth of the team.
• Be curious and innovative using new tools and techniques.
• Provide periodic off-hours production deployments and support.
• Work on messaging applications and API software development, design, and prototyping.
• Optimize performance for the applications.
• Telecommuting permitted up to 100%.

Qualifications
Employer will accept a Master's degree (or foreign equivalent) in Bioinformatics, Biotechnology or related field and 5 years of experience in the job offered or in a Principal Software Engineer-related occupation.
Alternatively, employer will accept a Bachelor's degree (or foreign equivalent) in Bioinformatics, Biotechnology or related field and 7 years of experience in the job offered or in a Principal Software Engineer-related occupation.
Position requires demonstrable experience in the following:

• AWS services, including CDK, Lambda, DynamoDB, API Gateway, Step Functions, SQS, EventBridge,
• VPC and S3
• NodeJS.
• Typescript.
• REST APIs.
• GraphQL.
• Production support including troubleshooting production issues.
• Performance improvement of API's.
• Technical documentation including API specification and architectural diagrams.
• Demonstrated ability to design effective unit test cases or performance tests that cover all functional and non-functional requirements.
• Telecommuting permitted up to 100%.

REFER TO: To apply, please visit https://jobs.libertymutualgroup.com/, select "Search Jobs," enter job requisition #2026-74538 in the "Job ID or Keywords" field, and submit resume. Alternatively, you may apply by submitting a resume via e-mail to RecruitLM@LibertyMutual.com. Reference requisition number in subject of e-mail.

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: https://LMI.co/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

Client-provided location(s): Portsmouth, NH

Job ID: liberty_mutual-2026-74538-en_1

Employment Type: OTHER

Posted: 2026-02-11T19:50:23