Héctor Polanco

Collaborated on the development of backend microservices using Python and FastAPI, Node and Nestjs for distributed transactional and payment systems, integrating Cobre, Wompi and Bridge. Implemented highly available AWS Serverless architectures (Lambda, Step Functions, SQS) and PostgreSQL data models, ensuring scalability, resiliency and financial idempotency through clean architecture. Leveraged AI-assisted development tools such as Cursor and GitHub Copilot to improve engineering productivity, code quality and delivery efficiency.

Software engineer - Littio

(2025-12 - 2026-07)

Collaborated on the development of backend microservices using Python and FastAPI, Node and Nestjs for distributed transactional and payment systems, integrating Cobre, Wompi and Bridge. Implemented highly available AWS Serverless architectures (Lambda, Step Functions, SQS) and PostgreSQL data models, ensuring scalability, resiliency and financial idempotency through clean architecture. Leveraged AI-assisted development tools such as Cursor and GitHub Copilot to improve engineering productivity, code quality and delivery efficiency.

Software engineer - Glofy

(2025-02 - 2025-08)

Developed and maintained backend microservices using Java/Spring Boot and Node.js to support core marketplace functionality. Designed and optimized data models with MySQL, PostgreSQL and MongoDB, and deployed services on AWS (EC2, S3, RDS, CloudWatch). Improved performance, reliability and maintainability through clean architecture, testing and close collaboration with cross-functional teams.

Software engineer - Osigu

(2024-05 - 2024-10)

Contributed to the design and development of backend systems for an insurance platform using Java/Spring Boot and Node.js. Implemented data models and optimized queries with MySQL, PostgreSQL, and MongoDB to support policies, claims, and customer management. Supported AWS deployments (EC2, S3, RDS, CloudWatch), ensuring scalable, stable, and maintainable services through close collaboration with product and engineering teams.

Sr Software Engineer - Mercadolibre

(2020-06 - 2024-02)

Designed and maintained backend microservices for the distributed checkout and payment platform of a large-scale marketplace using Java (Spring/WebFlux), Node.js and Golang. Delivered new features and improved high-volume transactional systems while applying clean architecture and design patterns. Supported production through on-call rotations and SLA monitoring with Datadog, Grafana and ELK, ensuring high availability, reliability and performance.

Fullstack Developer - Softdev team / 321 Ignition

(2019-03 - 2020-06)

Worked as a full-stack developer building web applications with React.js and Vue.js on the frontend, and Node.js/Express and Java (Spring) on the backend. Designed and implemented data models using MongoDB, MySQL, Redis, and Google Firestore. Integrated third-party services and CRMs, handled RESTful APIs and HTTP workflows, and deployed cloud-based solutions on Google Cloud Platform.

BS Degree - Computer Science - Universidad Politécnica Territorial De Falcón Alonso Gamero