Refactoring and extending backend systems using Node.js (Express) and TypeScript, applying Domain-Driven Design (DDD) and Event-Driven Architecture. Building serverless workflows on AWS (Lambda, SST) backed by PostgreSQL (Prisma ORM). Integrating AI-driven features to enhance automation and decision-making. Focused on clean, observable, and maintainable architecture tied to core business domains.

Owned backend development for high-impact financial features, including Stripe integrations. Designed and deployed serverless workflows (AWS Lambda, Step Functions). Improved system scalability and maintainability with NestJS and MongoDB. Delivered reliable event-driven services powering core finance operations.

Refactored the backend into microservices for scalability and resilience. Integrated AI-powered natural language generation to improve content quality and engagement. Used AWS ECS, Lambdas, event-driven patterns for real-time data processing. Utilized technologies such as NestJS, Express, MongoDB, and PostgreSQL to enhance backend functionality and achieve project goals.

Supported fast-growing startups (Tier, PayFit, GoStudent, Hurdle) modernizing backends using Node.js, TypeScript, and modern frameworks (Express, NestJS, Fastify). Utilized tools such as Jest for unit testing, Git Flow, Docker, CircleCI, ArgoCD, SonarQube, Code Climate, Datadog, and the ELK stack to ensure high-quality software delivery.

Designed microservices infrastructure from the ground up and migrated legacy systems using Domain-Driven Design principles. Built high-throughput services with Node.js/TypeScript, AWS ECS/Fargate, Redis (Pub/Sub), and message queues (SQS, RabbitMQ).

Developed a new microservices backend with TypeScript, supporting both GraphQL and REST APIs. Collaborated on frontend development with React, working with Redux, MobX, Rebass, Theme UI, Emotion, and SWR. Deployed services on AWS (Lambda, ECS, S3) and implemented centralized logging with the ELK stack.

Developed internal applications using Node.js/TypeScript (Express). Worked on frontend development with React, Redux (Thunk), Styled Components, Axios, Lodash, Normalizr, Material-UI, AtlasKit, and PWA. Managed SQL databases, debugged production APIs, and supported global CDN integrations (Cloudflare, Limelight).

Founded and operated a cycling business, launching an e-commerce platform with automated inventory.

Developed and maintained software for Stryker, CEMEX, and Drago Solutions. Technologies: RPG III/IV, CL, Java, C++, SQL.