Senior Java Engineer – Guidewire Insurance

Company Details

Berkley One is a modern insurance provider for a modern generation of affluence. We serve clients who live dynamic, adventurous lives and expect their insurance experience to match. Our mission is to deliver highly personalized risk and claims management through a blend of expert independent agents, cutting‑edge digital tools, and the strength of the Berkley brand.

At Berkley One, you’ll be part of a forward‑thinking team that’s reimagining personal insurance. We’re building solutions that are as sophisticated and agile as the clients we serve—individuals and families who value innovation, simplicity, and exceptional service. You’ll collaborate with passionate professionals, leverage modern technology, and help shape the future of our industry.

• A client‑first mindset with a passion for delivering exceptional experiences
• Curiosity, creativity, and a drive to challenge the status quo
• Collaboration across disciplines to build smarter, more intuitive solutions
• Integrity, expertise, and a commitment to excellence

This role will be based in one of our offices:

• Chicago, IL
• Morristown, NJ
• Wilmington, DE

We offer a hybrid work schedule with 4 days in the office; and 1 day remote where it makes sense to do so.

The Company is an equal employment opportunity employer.

As a Senior Java Developer, you will be a hands‑on senior engineer responsible for designing, building, enhancing, and supporting web‑based insurance applications, primarily on Guidewire Insurance Now
, to meet business goals. You will deliver high‑quality code, contribute to architecture and design decisions, and improve performance, stability, and supportability across the portfolio. This is an individual contributor role: success is measured by technical delivery, engineering quality, and operational excellence, not people management.

• Culture of innovation, teamwork, supportive colleagues and leaders willing to invest in talent
• Internal mobility opportunities
• Visibility to senior leaders and partnership with cross functional teams
• Opportunity to impact change
• Benefits – competitive compensation, paid time off, comprehensive wellness benefits and programs, employer funded health savings account, profit sharing, 401k, paid parental leave, employee stock purchase plan, tuition assistance and professional continuing education

• Build and enhance Insurance Now‑based Java solutions to support business requirements, including configuration/customization within vendor‑provided software.
• Design and implement significant new functionality with attention to performance, stability, scalability, and supportability.
• Develop, test, document, and support software solutions across the full lifecycle, from requirements through production support.
• Partner with business users and technical teammates to troubleshoot issues, perform root‑cause analysis, and drive resolution across application, middleware, and infrastructure layers.
• Produce design specifications that demonstrate understanding of interfacing systems and supported business processes.
• Create and execute test plans, analyze results, and remediate defects to improve quality and reliability.
• Raise engineering quality through thoughtful code reviews, design discussions, and improving standards (without formal “management” accountability).
• Proactively identify improvements to supportability and usability; recommend solutions to business problems using current technology and best practices.
• Monitor and assess performance metrics pre‑and post‑implementation to ensure high‑performing, scalable solutions.
• Contribute to the technical vision and evolution of the application portfolio in partnership with leadership and senior technical resources.
• Other work and projects as assigned

• Bachelors degree in Computer Science, Computer Engineering or a closely related course of study.
• 4+ years of enterprise Java development experience including full SDLC delivery and production support
• Hands‑on Guidewire Insurance Now experience (configuration and/or customization) on real delivery work
• Experience designing and implementing REST and SOAP…