Senior Software Engineer and Architect with 12+ years of experience designing and building distributed, scalable, and mission-critical systems. I specialize in backend engineering with deep expertise in Java, Kotlin, and C#, focusing on microservices architecture, cloud-native systems, and event-driven architectures.
Currently at Caliza (US Company), I lead end-to-end development of core payment platform services handling millions of daily transactions with strict security and compliance requirements. My background spans fintech, SaaS, healthcare, and public safety domains.
Current focus: Building resilient, observable systems at scale | Distributed computing | Event sourcing patterns | Cloud infrastructure optimization
- Compliance & Regulatory Impact — Designed enterprise compliance risk assessment framework integrating Jumio and Comply Advantage APIs, unblocking BMA regulatory approval for Bermuda Digital Asset Business license
- Award Winner — Adevinta Ignite Awards 2023 (Innovation Category) for modernizing Daft.ie's "Place Ad" feature: 220% NPS improvement (20% → 64%), 97% fraud reduction, 81% revenue increase
- Massive Scale — Led systems handling 130M+ requests/hour during trading periods and millions of daily transactions in fintech/payment platforms
- Architectural Migrations — Successfully migrated 30+ microservices from monolithic healthcare platform to cloud-native SaaS while maintaining HIPAA compliance
- Event-Driven Infrastructure — Designed enterprise-wide event bus system standardizing event propagation across corporate systems
Languages & Frameworks:
- Java, Kotlin, C# .NET, Spring Boot, Spring Cloud
Architecture & Design:
- Microservices, Distributed Systems, Domain-Driven Design (DDD), Event-Driven Architecture, Event Sourcing, SOLID Principles
Cloud & DevOps:
- AWS (EC2, RDS, S3, Lambda, SQS, SNS, Route 53), Azure, Kubernetes, Docker, Jenkins, CI/CD
Data & Messaging:
- PostgreSQL, MySQL, MongoDB, Oracle, SQL Server, Redis, ElasticSearch, RabbitMQ, Apache Kafka, Amazon SQS/SNS
Observability & Monitoring:
- ELK Stack (Elasticsearch, Logstash, Kibana), Grafana, AppDynamics, Prometheus
- 🔭 Leading backend services at Caliza — core payment platform infrastructure with Spring Boot/Kotlin handling millions of transactions
- 🌱 Mastering distributed computing — deep dive into event sourcing, CQRS patterns, and distributed system challenges
- 📚 Graduate Studies in Distributed Software Architecture at PUC-Minas (ongoing)
- 🏗️ Mentoring teams on cloud-native operations, API-first development, and CI/CD best practices
📧 Email: flaubert165@gmail.com
💼 LinkedIn: linkedin.com/in/ifsantana/
🔗 GitHub: @ifsantana
Feel free to reach out to discuss distributed systems, backend architecture, microservices patterns, or anything tech-related! I'm always happy to collaborate and share knowledge.
"The best systems are built by understanding the problem deeply, designing with simplicity in mind, and obsessing over reliability and observability."