Open to opportunities

Mateus Lopes do Nascimento

@mateuslopesnascimento

Senior Back-End Developer building scalable AWS/GCP microservices with TypeScript, operational excellence, and high-availability digital journeys.

Brazil

Message

What I'm looking for

I’m looking to build reliable, high-availability backend systems in AWS/GCP—modern microservices with TypeScript, strong CI/CD, event-driven workflows, and API-first design—where operational excellence drives scalable products.

I’m a Senior Backend Developer with over 6 years of experience building distributed, cloud-based systems using TypeScript, Node.js, React, Next.js, and microservices. I focus on operational excellence—delivering scalable architectures with high availability and fault tolerance.

Most recently at OVERLABS (São Paulo, Feb 2025–Today), I enhanced the AWS Lambda ecosystem by migrating from Serverless framework to AWS CDK, avoiding additional costs. I delivered payment solutions with AWS Lambda and TypeScript using Mercado Pago and Payzen, supporting a customer base of over a million for FIFA World Cup Pay Per View at Directv Argentina.

Earlier roles strengthened my end-to-end delivery: modernizing monoliths into microservices with Nest.js, Docker, and Serverless, and implementing CI/CD with AWS CodePipeline and Infrastructure as Code with AWS CDK. I’ve also built AI chatbots with AWS Lex and OpenAI LLMs, standardized API design with OpenAPI 3.0, and implemented event-driven workflows with AWS SQS.

Experience

Work history, roles, and key accomplishments

Current

Senior Backend Developer

Current

Overlabs

Feb 2025 - Present (1 year 4 months)

Enhanced an AWS Lambda ecosystem by migrating from the Serverless framework to AWS CDK, avoiding additional costs. Delivered payment solutions using AWS Lambda and TypeScript with Mercado Pago and Payzen, serving over 1M customers for FIFA World Cup Pay Per View at Directv Argentina.

AWS Lambda AWS CDK TypeScript Microservices Serverless Architecture Distributed Systems High Availability

Senior Backend Developer

Nt Consult Us

Jun 2023 - Feb 2025 (1 year 8 months)

Modernized legacy services by refactoring monoliths into microservices using TypeScript with Nest, Docker, and the Serverless framework. Implemented CI/CD with AWS CodePipeline and Infrastructure-as-Code via AWS CDK, reducing deployment time by 90%, and built AI chatbots with AWS Lex and OpenAI for 2,000+ users.

TypeScript Nest Microservices Docker Serverless AWS CodePipeline AWS CDK OpenAI CI CD

Backend Developer

Francioni

Dec 2021 - May 2023 (1 year 5 months)

Championed an API-first strategy using OpenAPI 3.0 to standardize API design across teams and accelerate client integration. Built scalable AWS Serverless backends and improved reliability with event-driven workflows using AWS SQS, reducing infrastructure costs and enhancing deployment agility.

OpenAPI API Design AWS Serverless SQS Event Driven Architecture TypeScript React Drupal

Digital Bus Integration Analyst

Accenture

Jun 2019 - Dec 2021 (2 years 6 months)

Designed and built automation for data ingestion using TypeScript and an event-driven architecture on AWS. Developed microservices for streaming provisioning and supported migrations from monoliths to microservices using AWS Lambda and Docker, while contributing to GDPR compliance and data privacy practices.