Full-stack Engineer 4 (Go, AWS)

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 companyShare 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 communityCollaborate with digital product managers, and deliver robust cloud-based solutions that drive powerful experiences to help millions of Americans achieve financial empowermentUtilize 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 servicesProvide technical leadership and direction across Agile teams, setting standards for design, development, and operational excellencePartner with architects to define service boundaries, integration patterns, and reusable frameworksProactively identify areas for improvement, implementing targeted refactoring and contributing to efforts that reduce technical debt and enhance system performanceInfluence long-term technology strategy through evaluation of emerging tools and practices in a 'you build it, you own it' environmentBasic Qualifications:Bachelor's Degree or higher in Computer Science or a related quantitative field (Statistics, Economics, Operations Research, Analytics, Mathematics, Engineering)At least 4 years of experience in software engineering (Internship experience does not apply)At least 2 years of experience with public cloud platforms (AWS, GCP, Azure), cloud-based productivity tools, or virtualization technologiesPreferred Qualifications:Master's Degree in Computer Science or a related field7+ years of experience coding with more than two of the following: Go, Java, JavaScript/TypeScript, Python, Rust, C#, Scala3+ years of experience with database and database management systems3+ years of experience with AWS, GCP, Azure, or cloud-based productivity tools or virtualization technologies4+ years of experience contributing to open source frameworks3+ years of experience with front-end JavaScript or TypeScript frameworks4+ years of experience creating synchronous and asynchronous APIs3+ years of experience with CI/CD pipelines, infrastructure as code, and automated testing frameworks3+ years of experience using Git-based version-control systems (e.g., Git, GitHub, Bitbucket)3+ years of experience troubleshooting technical issues within cloud environmentsExperience leveraging modern AI-based coding tools and IDE copilots1+ year of experience mentoring engineers and driving professional development within technical teams1+ year of experience leveraging observability to identify and optimize performance bottlenecks in distributed systemsExperience with interactive AI tooling to accelerate productivity, utilizing capabilities beyond basic code completionExperience leading cross-functional engineering efforts or large-scale technical initiativesExperience establishing and enforcing coding standards and design patterns across teams