Full-Time
Principal Software Engineer
Posted on 11/20/2025
Liberty Mutual
10,001+ employees
Global property and casualty insurer
No salary listed
Portsmouth, NH, USA
Remote
Travel required up to 10%.
 Software Engineering (1) |
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- The position requires a bachelor’s degree, or foreign equivalent, in Business Administration, Applied Computer Science, or a related field and six (6) years of experience in the job offered or a Principal Software Engineer-related occupation.
- Employer will also accept a master’s degree, or foreign equivalent, in Business Administration, Applied Computer Science, or a related field and three (3) years of experience in the job offered or a Principal Software Engineer-related occupation.
- Highly proficient in software engineering languages and tools with experience in AWS, Java, Python, Typescript, JavaScript (NodeJS, Angular, React), Java/J2EE Spring Boot, Docker, Microservices, and Git.
- Experience with event architecture, specifically RabbitMQ and Kafka.
- Diverse in technologies and new technical architecture principles and concepts, especially ways to scale flexibly for large data volumes.
- Strong understanding of database concepts including NoSQL using Mongo Atlas and SQL using Azure SQL.
- Drives continuous improvement activities related to Total Cost of Ownership (TCO).
- Layered systems architectures solutions and designs and shared software concepts.
- Understanding and teaching principles of functional and system integration testing including unit testing.
- IT concepts, strategies, methodologies.
- DevOps principles including CI/CD pipeline including strong experience with Bamboo and driving optimal configuration of CI/CD.
- Leading Agile software development concepts and processes including development lifecycle, Scrum, and Kanban.
- Working with minimal requirements to perform technical analysis and complete work meeting business expectations.
- Leading release readiness as well as change management.
- Performing impact analysis and leading or delegating production support activities.
- Making recommendations for design, defining design reasoning, and understanding potential impacts of design requirements.
- Backlog tracking, influencing tech debt remediation, understanding burndown metrics, and promoting incremental delivery.
- Travel required up to 10%.
- Telecommuting permitted up to 100%.
- Lead software engineer of the squad and influences the whole release train in innovation opportunities and technical direction.
- Mentors less experienced engineers.
- Develops component design and system/application architecture, sharing with other engineers to drive an effective approach.
- Develops maintainable/scalable, effective, defect-free source code that meets business requirements and team standards.
- Conducts automated test case development as well as drives overall automation strategy and coverage.
- Leads Behavior Driven Development best practices and conversations to ensure a user-focused lens is considered when building software.
- Identifies and implements appropriate continuous improvement opportunities.
- Works directly with Product Owner to prioritize technical debt and cadence of features.
- Contributes and influences technical alternatives considering future roadmap, Total Cost of Ownership, reusability, and flexibility in user needs.
- This leader should be on the forefront of technical initiatives that drive the team and company forward while ensuring that business priorities are successfully released and continuously monitored.
- Travel required up to 10%.
- Telecommuting permitted up to 100%.
Liberty Mutual is a global insurer providing property and casualty coverage for individuals and businesses, including auto, home, specialty lines, workers’ compensation, commercial liability, general property, and reinsurance. It charges premiums in exchange for protection, underwrites and prices policies to manage risk, and pays claims up to policy limits when losses occur. It stands out as one of the largest P&C insurers with a broad, multi-line, global footprint that diversifies risk across many markets and lines of business, supporting stable underwriting and financial strength. Its goal is to provide affordable, reliable protection while maintaining the financial strength to pay claims and grow the business over time.
Company Size
10,001+
Company Stage
N/A
Total Funding
N/A
Headquarters
Boston, Massachusetts
Founded
1912
Simplify's Take
What believers are saying
- Q1 2026 net income doubled to $2.052 billion with 88.2% combined ratio.
- Ethos partnership launches no-exam digital life insurance for direct consumers.
- Floodbase collaboration enables instant parametric flood quotes for commercial clients.
What critics are saying
- Everest Group leaked 108GB policyholder data on May 4, 2026, triggering fines.
- State regulators impose penalties within 6 months over third-party vendor breach.
- Customer churn erodes 6.8% homeowners market share to State Farm, Allstate.
What makes Liberty Mutual unique
- Liberty Mutual leads as top global surety provider since 1912 founding.
- Global Risk Solutions delivers specialty reinsurance to mid-large businesses worldwide.
- Mutual holding structure owned by policyholders ensures aligned long-term focus.
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Benefits
Performance Bonus
Company News
Liberty Mutual Insurance has elected Jacqui Canney, Chief People and AI Enablement Officer at ServiceNow, to its board of directors. Canney leads ServiceNow's global talent strategy and workforce planning, focusing on people-centred transformation and AI capability building. Canney joined ServiceNow in 2021 and assumed her current role in January 2025. She previously served as Chief People Officer at WPP and Walmart, and spent over two decades at Accenture in senior HR leadership roles. Liberty Mutual CEO Tim Sweeney said Canney's expertise in workforce transformation and AI enablement will prove valuable as the company evolves its operations. Canney also serves on the boards of Suffolk Construction and Project Healthy Minds, and holds a bachelor's degree in accounting from Boston College.
Liberty Mutual Foundation has announced the establishment of a $600 million endowment, providing long-term funding stability amid uncertainty in corporate philanthropy. The Boston-based insurer's charitable arm will fund the endowment by transferring assets from Liberty Mutual entities. The move comes as corporate giving faces headwinds from tariff-driven uncertainty, rising costs and tax law changes. Foundation chair Melanie Foley said the endowment will enable increased grantmaking beyond its roughly $50 million annual baseline and provide security for nonprofit partners. The endowment will primarily benefit Boston-area organisations focused on housing stability, workforce development and climate resiliency. Liberty Mutual Foundation supported over 500 nonprofits last year, including the American Red Cross and Boys & Girls Clubs of America. The announcement places the foundation among those with over $100 million in assets.
Liberty appoints Ettore Palma as Broker Relationship Manager. Liberty Specialty Markets announces the appointment of Ettore Palma to the newly created role of Broker Relationship Manager, with immediate effect. Based in the recently opened Rome office, Palma will report to Simone Jurina, Head of Distribution, Italy. Liberty has a strong presence in Italy, with offices in Milan and Rome and more than 60 employees. In this new position, Ettore Palma will be responsible for expanding Liberty's footprint in Italy by developing business across the central and southern regions of the country. He will also manage and strengthen existing relationships, as well as building new partnerships with brokers and intermediaries. He brings 30 years of experience in the insurance market, having worked with major insurance groups and international MGAs, with a strong focus on the Italian market. He joins from HECA, where he supported the company's growth in central and southern Italy. Simone Jurina, head of distribution, Italy said "We are pleased to welcome Ettore to our Rome office. He is highly regarded in the industry, and his extensive knowledge and experience working with insurers and intermediaries will be a great asset as we continue to grow our presence in Italy. This new role will enhance the quality of service we can offer both brokers and clients and will strengthen local market needs."
Liberty Mutual Insurance reported net income attributable to LMHC of $1.699 billion for the fourth quarter of 2025 and $6.792 billion for the full year, up from $1.239 billion and $4.383 billion respectively in 2024. The company achieved a consolidated combined ratio of 85.0% in the fourth quarter, a 6.5-point improvement, and 88.4% for the full year, exceeding its 95% target and marking its lowest ratio in recent history. The quarter's results benefited from favourable prior-year development, reduced catastrophe activity and $790 million in limited partnerships income. Chairman and CEO Tim Sweeney credited the improvement to investments in underwriting culture and growth initiatives. Total equity increased 30.1% to reach year-end levels, whilst cash flow from continuing operations rose 22.7%.
Floodbase and Liberty Mutual have launched an instant quoting application for parametric flood insurance in the US commercial market. The solution, powered by Floodbase Platform's new API, enables wholesale and retail brokers to price parametric flood covers in minutes, replacing a traditionally time-consuming process. The application targets small to midsized commercial businesses, where two-thirds of modelled US flood losses remain underinsured. Parametric flood coverage has matured as a complement to traditional property insurance, covering non-damage business interruption losses whilst addressing rising National Flood Insurance Program premiums. The new API allows brokers and managing general agents to integrate parametric flood insurance into automated quoting workflows, making previously bespoke placements accessible at scale. Liberty Mutual's pricing engine delivers multiple optimised structures and pricing options through the platform.