I’m a Senior Software Engineer with 5+ years of experience building scalable, resilient systems for fintech, banking, and digital platforms. I thrive on solving complex problems, leading teams, and driving innovation—whether it’s optimizing distributed architectures, modernizing legacy systems, or mentoring the next generation of engineers.

• 🏦 Current: Senior Software Engineer @ NtConsult (Contracting to Globo)
• 🏆 Awards: 2nd place, PagBank Hackathon (AI-Driven CI/CD); 2nd place, FIAP Startup Competition
• 🌍 Languages: English (C1), German (C1), Portuguese (Native)
• 🎓 Education: MBA in Software Engineering (FIAP), BSc. in Electrical Engineering (CEFET-MG), International Studies (FAU Erlangen, Germany)
• 🤝 Open to: Senior/Staff Engineer, Tech Lead, and Consulting roles (Remote or Hybrid)

Languages & Frameworks:
Java (8–21), Kotlin, Python, TypeScript, Spring Boot, Quarkus, NextJS & React, FastAPI

Cloud & DevOps:
AWS (SNS, SQS, S3, EC2, EKS, CloudWatch), Docker, Kubernetes, Terraform, Jenkins

Data & Messaging:
PostgreSQL, OracleDB, Redis, Apache Kafka

Architecture:
Microservices, Event-Driven, DDD, TDD, API Design, Observability, Performance Tuning

Other:
Cost Optimization, Test Automation, Machine Learning, Prompt Engineering, LLMs, RAG

• Accelerated Delivery: Led a delayed project to completion, reducing delivery time from months to days and building a high-performing team culture.
• Legacy Modernization: Migrated core banking apps to Java 21, eliminating vulnerabilities and boosting performance with virtual threads.
• Developer Experience: Built internal tools and platforms to speed up homologation, bug identification, and load testing.
• Cloud Cost Savings: Reduced third-party event charges by 10% and cloud costs by 2% through smart architecture and optimization.
• Security & Quality: Implemented company-wide API security standards and achieved 90%+ test coverage.
• Hackathon 🥈 place: Developed an AI-driven CI/CD solution to catch data modeling issues before production.
• International Collaboration: Designed an Insurance-as-a-Service system in Miami, opening new revenue streams for Méliuz.

• Advanced Kubernetes & Containers (LinuxTips)
• Software Architecture and System Design
• Observability and Devops automation tooling with Python (LinuxTips)

• travel-saga: Distributed system simulating trip reservations using the saga orchestrated pattern (Java)
• raglite-hackathon: RAG for a hackathon I took part (Python)
• ground-control: Product feature control platform (Kotlin)
• skytrail: A cloud-native orchestration platform that allows Directed Acyclic Graphs (DAGs) scheduling and/or execution of tasks (Java)
• db-guardian: Smart assessment of your DB-related files (Kotlin)
• logpie: An async lightweight log plataform with masking compliant features ready to be plugged in(Python)

• PagBank: Awarded 2nd place in internal hackathon for an AI-Driven CI/CD solution; led workshops on Observability, Testing, and System Design; mentored developers and built a high-performing team.
• Cartão Elo: Designed and implemented a company-wide Design System Library; modernized legacy platforms, reducing lead time and improving UX.
• Méliuz: Launched an international Insurance-as-a-Service system; delivered security features (MFA, OTP, Recaptcha); reduced cloud costs and improved system reliability.
• Startups: Built core features for e-commerce and fintech platforms; implemented SEO and event-driven architectures; delivered high test coverage and robust solutions.

• 💬 I love talking about distributed systems, developer experience, and all things tech.
• 🌎 Always up for meeting new people, learning new cultures, and sharing ideas.
• 📫 rafael.profeng@gmail.com | LinkedIn

• I see fun where people see challenges.
• I can move my ears with the bare power of my mind 🤯
• Addicted to 🚴, 📚, 🎼, and 🎬🍿.
• Nature lover, amateur chef, and always learning something new.

“I find joy in solving problems and coming up with new ideas. Let’s build something awesome together!”

Made with ❤️ by Rafael Almeida. If you want to build something impactful, let’s talk!