Senior Software Engineer in the Finance Squad, specializing in backend development. Refactoring existing code, implementing new features, and optimizing system performance using Node.js/NestJS and MongoDB. Building and integrating payment solutions, including Stripe. Enhancing system efficiency and contributing to high-impact financial projects through scalable, high-performance solutions.

Collaborated with a cross-functional team to refactor the backend into a microservices architecture, optimizing performance and scalability. Integrated artificial intelligence for natural language generation, enhancing user experience and content quality. Using AWS ECS, Lambdas, and event-driven design, enabling real-time data processing. Utilized technologies such as NestJS, Express, MongoDB, and PostgreSQL to enhance backend functionality and achieve project goals.

Collaborated with a variety of tech companies, including Tier, PayFit, and GoStudent. Developed and refactored backend systems into microservices architectures using Node.js (Express, Fastify, NestJS) and TypeScript. Worked with React and Next.js for frontend development in some of the projects.

Developed a microservices infrastructure for new projects and migrated legacy systems, applying Domain-Driven Design (DDD) principles when possible. Built and optimized backend services using Node.js/TypeScript, Docker with AWS ECS/Fargate, Redis (Pub/Sub), AWS SQS, RabbitMQ, GraphQL, and REST APIs with MySQL (Sequelize) and MongoDB (Mongoose), improving system scalability and reducing deployment time by 30%.

Developed a new microservices backend using Node.js with TypeScript, implementing both GraphQL and REST endpoints. Collaborated on frontend development with React, working with Redux, MobX, Rebass, Theme UI, Emotion, and SWR. Utilized AWS services (Lambda, S3, ECS) and Docker for microservices deployment. Implemented monitoring and logging solutions with the ELK stack. Managed data storage and retrieval using MongoDB.

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, monitored and debugged APIs, and handled Windows app/web servers. Performed rollouts and deployments while supporting CDNs like Limelight, Cloudflare, and CDNetworks. Utilized tools such as Confluence, Jira, and Swagger for documentation and collaboration.

Founded and managed a sports (cycling) business, adapting to dynamic market conditions with effective sales strategies. Developed a deep understanding of customer needs and adjusted marketing approaches accordingly. Created my own bike brand. Leveraged my IT background to automate inventory management and build an online store to expand sales channels.

Worked as a Programmer Analyst for Stryker (USA) as part of my internship and then Drago Solutions (Madrid). Developed software using RPG III, RPG IV, ILE, CL, as well as Java and C++ with SQL databases