GEICO . For more information, please .* Provide technical and architectural leadership for substantiation and reconciliation services, APIs, and related data paths.* Build scalable, secure, highly available software for matching, exceptions, and financial controls.* Drive modernization initiatives—including evolution away from legacy reconciliation and financial systems.* Own solutions end-to-end—design through production—including quality, reliability, performance, and observability.* Mentor engineers and foster a culture of continuous learning; influence leadership at multiple levels through clear articulation of tradeoffs and roadmaps.* Fluency and specialization with at least one modern language such as Java, C#, or Go* Microservices / SOA, REST and gRPC (or comparable APIs), solid SQL and relational design at scale* Cloud (AWS/Azure/GCP), CI/CD, containers, IaC, and production DevOps/observability practices* Proven architecture and design for distributed, data-heavy systems; strong production troubleshooting* Excellent communication with technical and non-technical partners; Agile delivery experienceGEICO seeks a **Senior Staff Software Engineer** to design, build, and scale the Substantiation Platform—systems that validate and reconcile financial data across enterprise sources, supporting controls, compliance, and auditability at high volume.You will work with Finance, Compliance, Product, the Financial Data Warehouse, and ERP-aligned teams to deliver reliable reconciliation services, clear data lineage, and integrate source systems with financial reporting and GL-related ERP workflows.**Responsibilities** As a Senior Staff Software Engineer, you will: Align with Product, Finance, Compliance, and Treasury on requirements and operational outcomes.**Qualifications** **Experience** Financial services / insurance; ERP/GL familiarity. **Education** Bachelor’s or Master’s in CS, Engineering, or related field—or equivalent experience. **Location (hybrid)** * Comprehensive Total Rewards program that offers personalized coverage tailor-made for you and your family’s overall well-being.* Financial benefits including market-competitive compensation; a 401K savings plan vested from day one that offers a 6% match; performance and recognition-based incentives; and tuition assistance.* Access to additional benefits like mental healthcare as well as fertility and adoption assistance.* Supports flexibility- We provide workplace flexibility as well as our GEICO Flex program, which offers the ability to work from anywhere in the US for up to four weeks per year.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.