Gilson Oliveira
Senior Software Engineer with 6+ years building scalable applications using Node.js, NestJS, React, and AWS cloud services. Specialized in healthcare and fintech solutions for international companies. Available for remote work worldwide.
About Me
I'm a Senior Software Engineer with 6+ years of experience building enterprise-grade, scalable applications. My expertise spans Node.js, NestJS, React, TypeScript, and AWS cloud infrastructure. I've successfully delivered solutions for healthcare platforms serving 20k+ medical professionals, fintech applications, and e-commerce systems for international companies.
Frontend
Frontend: React, React Native, Next.js, TypeScript, Tailwind CSS
Backend
Backend: Node.js, NestJS, Express.js, PHP, Python, C#, GraphQL, RESTful APIs
DevOps
Cloud & DevOps: AWS (Lambda, EC2, CloudWatch, Cognito, S3, RDS), Docker, Kubernetes, CI/CD, Serverless Architecture
Databases
Databases: PostgreSQL, MongoDB, MySQL, Redis, DynamoDB
Hacktobefast Winner - Recognized for outstanding contributions to open-source projects with official t-shirt and multiple achievement badges
Successfully delivered solutions for leading companies including Inspiring Future, Afya (healthcare platform with 20k+ doctors), Tech6, and international startups across healthcare, fintech, and e-commerce sectors.
Ready for International Opportunities
Experienced in working with international companies and remote teams. Specialized in building scalable solutions for healthcare, fintech, and enterprise applications.
Healthcare Software
HIPAA-compliant applications for medical platforms serving 20k+ doctors. Experience with patient data management, telemedicine, and healthcare analytics.
Fintech Solutions
Secure payment processing, financial APIs, and banking applications. PCI-DSS compliant systems with real-time transaction processing.
Enterprise Applications
Microservices architecture, API gateways, and cloud-native solutions for enterprise clients. Scalable systems handling millions of users.
Looking for a Senior Software Engineer?
I'm available for remote work with international companies. Let's discuss how I can help build your next scalable application using Node.js, NestJS, React, and AWS.
Featured Projects
Chat Real - Open Source Video Chat
Open-source WebRTC video chat platform with 10⭐ and 22 forks. Hacktoberfest 2025 featured project with 13 contributors. HD video calls, P2P encryption, screen sharing, and real-time messaging. Active community with 16 open issues and 3 PRs. Built with React 18, TypeScript, and modern web technologies.
LaborChat AI - FinTech Mobile App
Intelligent mobile chat assistant for FinTech customer support. React Native + Expo app integrating OpenAI ChatGPT for personalized, real-time automated responses. Features process automation, predictive analysis, and cross-platform accessibility. Solves complex customer communication challenges with AI-powered natural language processing.
Brain Agriculture - AgriTech API
RESTful API for agricultural data management with Clean Architecture and TDD (100% coverage). Manages farms, producers, and crop data with Prisma ORM and PostgreSQL. Features include CRUD operations, data validation, and relationship management. Production-ready deployment on Heroku with Docker support.
Friend Recommendation Algorithm
Open-source recommendation system using graph algorithms and collaborative filtering. Built for scalability with Node.js and comprehensive Jest testing. Community-driven project with 3 stars and 4 forks, designed as a learning resource for recommendation systems and algorithm implementation.
About Me Video
Watch me talk about my journey and expertise