Implemented business-critical compliance logic, ensuring regulatory requirements were enforced at the API and data layer for backend systems handling $100M+ in transaction volume. Built and maintained integrations with third-party providers, focusing on reliability, idempotency, and failure handling. Worked primarily with TypeScript, SQL, and AWS (serverless stack) to deliver scalable, low-latency services. Regularly collaborated with product, compliance, and external partners to ship features safely in a regulated environment. Improved robustness and extensibility of core payment APIs while operating at meaningful financial scale.

Acted as hands-on CTO, balancing architecture, development, and leadership responsibilities. Led teams of engineers across multiple concurrent projects, including hiring, onboarding, and performance guidance. Designed and owned system architectures for client products. Established internal development standards, delivery processes, and technical decision-making. Served as the primary stakeholder for clients across the US, UK, Germany, Australia, and other regions, translating needs into technical solutions. Enabled consistent delivery of client systems while scaling engineering teams and technical scope.

Led team of engineers delivering features across multiple backend and frontend services. Maintained hands-on involvement in design and implementation using TypeScript, PostgreSQL, and React. Supported systems built with a polyglot stack including Python, Ruby, Java, and identity tooling such as Keycloak. Partnered closely with product and non-technical stakeholders to deliver against shifting priorities while maintaining technical quality. Mentored engineers, reviewed designs and code, and helped guide technical decisions across services.

Built and maintained data pipelines and backend systems critical for expansion into new geographic markets. Collaborated directly with product and business stakeholders to translate regulatory requirements into system behavior. Worked in a TDD-first environment on a large Rails-based codebase with frequent production releases. Used Ruby on Rails and TypeScript to extend a monolithic platform safely and incrementally. Enabled platform readiness for international expansion while maintaining reliability under regulatory constraints.

Architected and executed large-scale data migrations across evolving system boundaries. Designed event-driven communication pipelines supporting microservices-based workflows. Assisted with roadmap planning and unblocking technical risks across teams, while improving system scalability and data reliability during periods of architectural transition. Worked primarily with Ruby and TypeScript.

Built and shipped end-to-end web applications, often acting as technical lead on projects. Work mostly with Ruby, TypeScript, SQL, and React. Mentored junior engineers and supported team members through code reviews and design discussions. Delivered production systems while growing into senior-level technical and leadership responsibilities.