Full-stack Engineer 4 (Go, AWS)

About the role

Full-stack Engineer 4 (Go, AWS)

Do you love building and pioneering in the technology space? Do you enjoy solving complex business problems in a fast-paced, collaborative, inclusive and iterative delivery environment? At Capital One, you'll be part of a big group of makers, breakers, doers and disruptors who solve real problems and meet real customer needs. We are seeking Full-stack Software Engineers who are passionate about leveraging cutting-edge open source frameworks and emerging technologies. In this role, you’ll be at the forefront of driving a major transformation across Capital One.

About the Team:

Team Capybaras is a middleware engineering team building the future of Card Core owning Account Participants Management, driving credit card participant capabilities across Capital One's servicing platforms. We develop and maintain a multi-region, serverless Go monorepo deployed on AWS Lambda, Durable Lambdas and API Gateway, with infrastructure managed via CDK/TypeScript. In this senior engineering role, you will architect, implement, and harden high-concurrency APIs essential to downstream systems and card issuers. Your focus will center on error handling, fault tolerance, and data consistency for participant records working cross-functionally alongside product, infrastructure, and servicing partners. We uphold a high engineering standard centered on rigorous code reviews, extensive test coverage, and clean architectural design. This role offers an exceptional opportunity for engineers passionate about Go, distributed systems resilience, and building mission-critical financial infrastructure, within a fast-paced, collaborative, and innovative environment.

What You’ll Do:

- Lead a portfolio of diverse technology projects and a team of developers with deep experience in distributed microservices, and full stack systems to create solutions that help meet regulatory needs for the company

- Share your passion for staying on top of tech trends, experimenting with and learning new technologies, participating in internal & external technology communities, mentoring other members of the engineering community

- Collaborate with digital product managers, and deliver robust cloud-based solutions that drive powerful experiences to help millions of Americans achieve financial empowerment

- Utilize programming languages like Java, Scala, Python, Go, Node.js, JavaScript and TypeScript, Open Source RDBMS and NoSQL databases, Container Orchestration services including Docker and Kubernetes, and a variety of AWS tools and services

- Provide technical leadership and direction across Agile teams, setting standards for design, development, and operational excellence

- Partner with architects to define service boundaries, integration patterns, and reusable frameworks

- Proactively identify areas for improvement, implementing targeted refactoring and contributing to efforts that reduce technical debt and enhance system performance