Senior Software Engineer | Software Architect | Fintech & Cloud Specialist

Welcome to my GitHub.

I am a Brazilian software engineer with over 15 years of experience designing, building and scaling high-performance systems in complex environments, especially in the financial sector.

My work focuses on backend engineering, distributed systems, microservices architecture, and cloud-native platforms. I have contributed to projects involving high availability, secure financial transactions, large-scale integrations and data-intensive platforms.

Currently I work with enterprise banking systems and fintech infrastructure, while also building SaaS products and technology ventures.

• Design scalable architectures for enterprise systems
• Build microservices and high-performance APIs
• Implement cloud-native platforms and distributed systems
• Develop fintech and payment infrastructure
• Optimize large data pipelines and batch processing
• Architect secure integrations for financial services

Backend Development

Java • Spring Boot • Node.js • Kotlin • PHP (Laravel)

Architecture

Microservices • Event-driven systems • Distributed systems • Domain Driven Design • SOLID Principles

Cloud & DevOps

Docker • Kubernetes • Rancher • Jenkins • GitHub Actions • CI/CD • Observability

Databases

PostgreSQL • Oracle • MySQL • MongoDB

Integration & Messaging

RabbitMQ • REST APIs • Webhooks • API Gateways

Data & Processing

Spring Batch • ETL Pipelines • Data Processing • CSV / Large Dataset Handling

I have strong experience in financial technology and banking platforms, including work with:

• Investment and wealth management systems
• Payment infrastructure
• Account balance and financial data services
• API ecosystems for financial institutions
• High-volume transactional systems

Besides corporate work, I build independent technology products including:

Fintech Platforms

• Payment gateways
• Digital financial platforms
• Transaction processing services

SaaS Platforms

• Restaurant and entertainment management systems
• Business automation tools
• Online service platforms

Developer Tools

• Automation systems
• Data processing pipelines
• Cloud architecture experiments

I also collaborate in scientific technology initiatives related to spectroscopy and photochemistry instrumentation, supporting research groups and scientific infrastructure projects.

I am constantly improving my expertise in:

Cloud Architecture
FinOps
DevOps & Observability
Data Engineering
Distributed Systems

• Scalable systems architecture
• Financial technology
• Cloud infrastructure
• SaaS platforms
• Developer productivity tools

LinkedIn
https://www.linkedin.com/in/lucaspenco/

⭐ Always open to collaborating on interesting technology projects.