Senior Software Engineer - Full Stack

At GEICO, we offer a rewarding career where your ambitions are met with endless possibilities. Every day we honor our iconic brand by offering quality coverage to millions of customers and being there when they need us most. We thrive on relentless innovation to exceed our customers' expectations while making a real impact on local communities nationwide. Founded in 1936, GEICO is a member of the Berkshire Hathaway family of companies and one of the largest auto insurers in the United States.

When you join our company, we want you to feel valued, supported, and proud to work here. That's why we offer the GEICO Pledge:
Great Company, Great Culture, Great Rewards, and Great Careers.

We are seeking an accomplished Senior Full Stack Software Engineer to help design and deliver modern digital claims experiences for customers and associates. This role spans web, mobile, and backend development across React micro-frontends, Java-based services, GraphQL APIs, and Flutter applications. The ideal candidate combines deep technical expertise with strong architectural judgment, product awareness, and collaborative leadership. You will influence engineering standards, guide cross-team technical decisions, and deliver secure, scalable, observable, and maintainable enterprise software.

• Design and deliver full-stack capabilities across React applications, Java services, GraphQL APIs, and Flutter applications.
• Lead technical design for features spanning micro-frontends, Backend-for-Frontend services, downstream integrations, and mobile experiences.
• Develop React and Type Script applications using Webpack Module Federation, React Router, Redux Toolkit, and shared component libraries.
• Design and maintain Java 21 and Spring Boot services that aggregate downstream APIs into stable, user-focused contracts.
• Develop GraphQL schemas, resolvers, batch mappings, and Apollo Client integrations.
• Contribute to Flutter and Dart feature packages using Riverpod, repository-based data access, shared design systems, and reusable components.
• Apply established patterns—including facade, builder, mapper, repository, strategy, visitor, observer, factory, adapter, and rule engine—to create modular and testable solutions.
• Define clear ownership of business logic across presentation, orchestration, application, and domain layers.
• Establish resilient integration patterns for REST and GraphQL services, including error handling, caching, retries, authorization, and contract compatibility.
• Use feature flags, telemetry, and progressive delivery practices to release changes safely.
• Mentor engineers through technical guidance, design reviews, pair programming, and constructive code reviews.
• Collaborate with product, design, architecture, security, and engineering partners to turn business needs into effective technical solutions.
• Improve engineering practices, reusable patterns, documentation, and development workflows across teams.

• Significant professional experience designing and delivering full-stack applications in enterprise production environments.
• Advanced proficiency in Type Script and modern JavaScript, including strong experience with React.
• Strong proficiency in Java and Spring Boot, including dependency injection, service-layer design, API development, and downstream system integration.
• Experience designing and consuming GraphQL and REST APIs.
• Experience with micro-frontend architecture, ideally including Webpack Module Federation, independently deployable applications, runtime integration, and shared-dependency management.
• Strong knowledge of frontend state-management patterns using Redux Toolkit or comparable technologies.
• Demonstrated ability to apply…