Backend Developer
Node.js • TypeScript • NestJS

Backend developer with several years of experience building APIs and backend systems using Node.js.
Strong background in microservices, event-driven systems, and integration architecture.

Currently working at CTC, contributing to the evolution of solutions for the pharmaceutical sector, focusing on scalability, reliability, and compliance.

📍 Aug 2023 – Present

• Developed middleware and OData APIs using Node.js, NestJS, TypeScript, and TypeORM to integrate ERPs with analytics tools.
• Contributed to an internal CRM system integrated with SQL Server, achieving significant performance gains in critical workflows.
• Participated in the implementation of a document control system focused on compliance and traceability in a regulated environment.
• Designed and maintained CI/CD pipelines for a critical modular monolith using GitHub Actions.

• Built automated pipelines with testing and predictable deployments.
• Ensured safe versioning and reduced release risks across multiple environments.

Tech Stack:
Node.js, NestJS, TypeScript, SQL Server, PostgreSQL, TypeORM, Fastify, Docker, GitHub Actions

📍 May 2013 – Aug 2016

• Modernized legacy systems using JavaScript and modern development practices.
• Worked on backend architecture and optimization, improving scalability and maintainability.
• Implemented performance improvements and system integrations.

• Node.js & NestJS — APIs and microservices
• TypeScript — Primary language
• Hexagonal Architecture — Practical application (BitQueue)
• Design Patterns — Real-world usage
• Clean Code & SOLID principles

• Relational: SQL Server, PostgreSQL
• NoSQL: MongoDB, DynamoDB

• RabbitMQ — Asynchronous communication
• Amazon SQS — AWS integration
• Event-driven microservices architecture

• REST APIs (robust & well-documented)
• Workers and asynchronous services
• ERP integrations (SAP), internal and third-party systems

• AWS: Lambda, S3, SQS, DynamoDB, RDS, ECS, CloudWatch, API Gateway
• Docker — Containerization
• CI/CD — GitHub Actions
• DevOps culture: automation, observability, best practices

• Unit and integration testing
• Automated validations in CI/CD pipelines

• DevOps Mindset: Docker, CI/CD, automation, observability (OpenTelemetry, Prometheus, structured logging)
• Financial Domain Experience: TechFinance project (finance, sales, reporting)
• Initiative & Autonomy:
  • Open source: Diolinux PhotoGIMP (active community)
  • npm libraries: Resulta
• Technical Communication: Strong documentation and cross-team collaboration
• Continuous Learning: AI/ML exploration (LLMs, RAG), AI APIs, intelligent automation