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Hi, I’m Lucas. I’m a Senior Software Engineer with 15+ years of experience delivering scalable full‑stack solutions. I specialize in Java (Spring Boot), Node.js, React, TypeScript and AWS, and I love building robust cloud‑native architectures for public safety, banking, and e‑commerce. I’ve led teams to ship reliable software and enjoy turning complex problems into practical, maintainable systems. Recently I’ve been exploring AI-powered automation by integrating OpenAI agents and ElevenLabs, plus modern CI/CD practices to streamline workflows. I’m passionate about mentorship, customer‑centric delivery, and building approachable, high‑quality software that makes a real impact.…Hi, I’m Lucas. I’m a Senior Software Engineer with 15+ years of experience delivering scalable full‑stack solutions. I specialize in Java (Spring Boot), Node.js, React, TypeScript and AWS, and I love building robust cloud‑native architectures for public safety, banking, and e‑commerce. I’ve led teams to ship reliable software and enjoy turning complex problems into practical, maintainable systems. Recently I’ve been exploring AI-powered automation by integrating OpenAI agents and ElevenLabs, plus modern CI/CD practices to streamline workflows. I’m passionate about mentorship, customer‑centric delivery, and building approachable, high‑quality software that makes a real impact.

Lucas Sousa

Full Stack Developer, Back-End Developer, AI Engineer, +3

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Hi, I’m Lucas. I’m a Senior Software Engineer with 15+ years of experience delivering scalable full‑stack solutions. I specialize in Java (Spring Boot), Node.js, React, TypeScript and AWS, and I love building robust cloud‑native architectures for public safety, banking, and e‑commerce. I’ve led teams to ship reliable software and enjoy turning complex problems into practical, maintainable systems. Recently I’ve been exploring AI-powered automation by integrating OpenAI agents and ElevenLabs, plus modern CI/CD practices to streamline workflows. I’m passionate about mentorship, customer‑centric delivery, and building approachable, high‑quality software that makes a real impact.…Hi, I’m Lucas. I’m a Senior Software Engineer with 15+ years of experience delivering scalable full‑stack solutions. I specialize in Java (Spring Boot), Node.js, React, TypeScript and AWS, and I love building robust cloud‑native architectures for public safety, banking, and e‑commerce. I’ve led teams to ship reliable software and enjoy turning complex problems into practical, maintainable systems. Recently I’ve been exploring AI-powered automation by integrating OpenAI agents and ElevenLabs, plus modern CI/CD practices to streamline workflows. I’m passionate about mentorship, customer‑centric delivery, and building approachable, high‑quality software that makes a real impact.

Available to hire

Hi, I’m Lucas. I’m a Senior Software Engineer with 15+ years of experience delivering scalable full‑stack solutions. I specialize in Java (Spring Boot), Node.js, React, TypeScript and AWS, and I love building robust cloud‑native architectures for public safety, banking, and e‑commerce. I’ve led teams to ship reliable software and enjoy turning complex problems into practical, maintainable systems.

Recently I’ve been exploring AI-powered automation by integrating OpenAI agents and ElevenLabs, plus modern CI/CD practices to streamline workflows. I’m passionate about mentorship, customer‑centric delivery, and building approachable, high‑quality software that makes a real impact.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Language

Portuguese

Fluent

English

Advanced

Work Experience

Senior Software Engineer at GovWorx

February 1, 2025 - December 1, 2025

Architected and maintained microservices for a US Public Safety API project using Java Spring Boot; automated processes with Python; designed cloud‑native infrastructure on AWS (Terraform, DynamoDB, Lambda, ECS, RDS, S3, VPC, IAM, CloudWatch); implemented CI/CD with CircleCI; integrated AI‑driven voice agents using OpenAI and ElevenLabs to automate complex workflows; developed responsive UI components with React/TypeScript; monitored and observed system health with DataDog and CloudWatch.

Co-Founder & Principal Engineer at Nimble (Personal / Side Project)

September 1, 2019 - February 1, 2025

Owned end‑to‑end product development for a real estate platform: architected and built the mobile app with React Native/Expo (TypeScript); created production REST API with NestJS/Node.js and AWS RDS for data persistence; built cloud infrastructure with Terraform and CI/CD via CircleCI; hosted front‑end on Vercel; developed an admin panel for management and a transactional notification flow.

Software Engineer at Ubiminds / NEO GOV

November 1, 2021 - March 1, 2023

Developed cloud‑native services for the US Public Safety sector using Java Spring Boot; front‑end UI in React/TypeScript (Redux); implemented WebSocket real‑time communication; configured AWS services (DynamoDB, ALB, SQS, SES, S3, RDS, EC2, IAM, CloudWatch) using Terraform; contributed to observability, security and scalable architecture.

Senior Software Engineer at Blue Consulting / Brazil Cap

June 1, 2018 - October 1, 2021

Led API development for banking applications using Node.js and Java/J2EE; managed AWS configurations (S3, DynamoDB, RDS, SQS, SQS, S3); built dynamic front‑end UI with AngularJS and Angular 2; ensured high availability and performance; contributed to CI/CD processes and system reliability.

Software Engineer at Hotel Urbano

January 1, 2014 - January 1, 2016

Frontend development with Angular (Jest/Jasmine for unit and integration tests); built and maintained Node.js REST APIs; supported high‑traffic travel projects and platform features.

Java Developer at Petrobras

January 1, 2014 - January 1, 2014

Improved intranet performance for oil platform support systems using Java (J2EE, JMS, Tomcat).

Java & PowerBuilder Developer at Compra Fácil / Hermes

January 1, 2010 - January 1, 2013

Maintained large‑scale e‑commerce systems and queue‑based BI analytics using Java/J2EE (EJB, JMS) and PowerBuilder.