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@rafaelmartinsgarcia
Senior Java software engineer driving microservices, cloud and scalable backend solutions for enterprise systems.
I am a senior Java software engineer with deep experience designing and migrating large-scale backend systems to modern microservices and cloud platforms. I specialize in implementing resilient APIs, event-driven integration, and performance-tuned data access layers.
Across telecom, banking, payments, rail and insurance, I led technical teams to deliver features for millions of users, integrate biometric SSO, and build anti-fraud and financial tooling. I have repeatedly modernized legacy systems (Delphi, Java portlets, JSF) to Spring Boot, Hibernate and containerized deployments.
My strengths include architecting microservices, migrating monoliths, and applying Kafka, Kubernetes and AWS to production environments. I also design cost-saving generic solutions and optimized SQL for complex business domains.
I bring leadership from tech-lead roles and hands-on engineering skills, committed to fast learning, self-driven improvements, and delivering measurable impact on reliability, security and operational cost.
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Work history, roles, and key accomplishments
Wabtec
Jan 2024 - Present (1 year 10 months)
Updated current project with a new software version using Java, Spring Boot, Quarkus and modern cloud tooling; collaborated across teams to integrate features and design solutions for railroad systems.
Claro
Nov 2019 - Jan 2024 (4 years 2 months)
Led development of Single Sign-On features (facial biometrics, OTP), payment/billing tools and anti-fraud capabilities; designed APIs to migrate a monolith to microservices serving ~60 million customers.
Resource IT Outsourcing
Sep 2017 - Nov 2019 (2 years 2 months)
Modernized bank point-of-sale and manager backend from Delphi to Java and microservices, designed microservices architecture and implemented payments solutions for banking stakeholders.
Digicomm
Mar 2011 - Jun 2012 (1 year 3 months)
Built integrations between multiple e-commerce websites and payment processors using PHP and Java, improving transaction flows and platform connectivity.
Degrees, certifications, and relevant coursework
Bachelor of Science, Computer Science
2013 - 2017
Completed a Bachelor of Science in Computer Science with coursework and projects focused on Java, legacy system migration to microservices, and backend features for banking and insurance domains.
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