lucas barros

Designing and implementing cloud-native backend solutions using Java (Spring Boot) and Node.js on AWS/Azure infrastructure. Focus on building scalable microservices that serve thousands of concurrent users while optimizing for performance and cost efficiency.

Key contributions:
- Architected and deployed distributed systems with 99.9% uptime using AWS Lambda, API Gateway, and RDS
- Reduced cloud

Led engineering teams developing high-traffic systems serving 10,000+ daily active users. Drove architectural decisions across the entire stack, from database design to cloud infrastructure, while mentoring 5+ developers and maintaining consistent delivery velocity.

Key achievements:
- Reduced system response time by 40% through database optimization and caching strategies (Redis)
- Implemented i

Modernized legacy enterprise applications by developing Java microservices on OpenShift platform. Contributed to mainframe-to-cloud migration project handling 50,000+ daily transactions.

Key contributions:
- Built event-driven microservices using Kafka and IBM MQ for real-time data processing
- Migrated critical mainframe workflows to containerized Java applications (Spring Boot)
- Ensured zero-d

Developed high-performance microservices using Java 8/11 and Spring Boot, focusing on low-latency API design for financial services applications.

Key contributions:
- Built RESTful APIs integrated with AWS API Gateway serving 5,000+ requests/minute
- Implemented Redis caching layer reducing database load by 60%
- Designed event-driven architecture using Apache Kafka for real-time data streaming
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Developed secure APIs and SDKs for cybersecurity product integration. Gained hands-on experience with application security, Linux system administration, and production incident response.

Key contributions:
- Built RESTful APIs following OWASP security best practices
- Created comprehensive unit test suites achieving 85%+ code coverage
- Performed Linux server maintenance and troubleshooting for p

Delivered custom software solutions for small and medium-sized businesses, building desktop applications and backend systems. Managed full project lifecycle from requirements gathering to deployment and maintenance.

Key projects:
- Developed JavaFX desktop applications with SQL Server integration for inventory management and CRM systems
- Built automated deployment pipelines using Jenkins, reduci

Mar 2022

Higher technological course at FIAP (Faculty of Informatica and Administration in São Paulo, involvement with all processes of a project, java development, contact with SQL language and responsive web development.

Dec 2020

Jun 2020

Sep 2020

Jul 2020

Dec 2019

Dec 2019