Leandro Alves

Leandro Alves

Senior Software Engineer | 17+ Years in Java, Cloud & Microservices

I’m a passionate engineer leading scalable, secure solutions for insurance, healthcare, and payment systems. AWS certified and skilled in Java, Spring Boot, and REST/SOAP APIs.

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About Me

With 17 years of experience as a Senior Software Engineer, I specialize in designing and leading scalable, secure solutions using Java, Spring Boot, and cloud technologies like AWS and Azure. I’ve driven major architectural transformations, such as migrating monolithic systems to microservices, and developed robust REST and SOAP APIs for high-traffic platforms in insurance, healthcare, and payment industries. Certified in AWS (Solutions Architect, Developer, AI Practitioner), I’m passionate about mentoring teams, implementing agile methodologies, and delivering innovative software that drives business success.

Education: Degree in Information Systems, UNIFAFIBE (2005–2008); Post-degree in Web Systems Development (2009–2010).

Experience

FINEOS | Senior Software Engineer

Nov 2023 – Jun 2025 | Ireland

  • Worked on enhancements to Policy and Billing modules for FINEOS AdminSuite, improving system efficiency.
  • Developed scalable RESTful APIs to support integration and performance.
OptumHealth | Senior Software Engineer

Oct 2022 – Oct 2023 | County Dublin, Ireland

  • Built an ETL service from scratch for processing $20B in medical payment claims, achieving 20% throughput increase.
  • Led migration of ETL system to Spring Boot 3 and Java 17, enhancing maintainability and security.
  • Migrated ETL system to a reactive programming model, optimizing performance and reducing costs.
SynergySuite | Software Engineer

Nov 2018 – Apr 2022

  • Developed an annotation-based SOAP library in Java to streamline third-party API integrations.
  • Standardized OAuth2 authentication across RESTful APIs, improving security and integration efficiency.
Oiti Technologies | System Analyst

Oct 2008 – Aug 2018 | Sorocaba, Brazil

  • Led migration of a biometric system from monolithic to Service-Oriented Architecture (SOA), then to microservices (Java, RESTful APIs).
  • Created a reusable JavaScript component for biometric API integration, accelerating onboarding and generating new revenue.
  • Implemented anti-spoofing liveness detection with gamification in Java, reducing fraud by 40% and improving customer success.
F3Sistemas | Software Engineer

Jan 2013 – Aug 2018 | Sorocaba, Brazil

  • Led development of the Urbes transit app for Sorocaba’s public transit system, serving 4.4M monthly users and achieving 500K+ downloads.

What Colleagues Say

“Leandro is extremely knowledgeable as a Java developer and has adapted quickly to new technologies. His contributions accelerated product delivery, and he’s always willing to share knowledge with junior team members.”

– John Murphy, Senior Manager, Software Engineering at Optum

“Leandro is a great Java Engineer who quickly up-skilled on modern tech stacks. He mentors juniors, contributes to architectural decisions, and has a can-do attitude that makes him an asset to any team.”

– Lisa Henry, Senior Software Engineering Manager at Optum

“Leandro is a serious and committed professional who maintains strong focus during work, ensuring high-quality outcomes.”

– Alessandro de Oliveira Faria, Founder and CEO at Oiti Technologies

Skills & Certifications

Languages/Frameworks
  • Java
  • Spring Boot
  • REST/SOAP APIs
  • JavaScript, TypeScript
  • Node.js
Cloud/DevOps
  • AWS (Lambda, ECS, S3, DynamoDB)
  • Azure
  • Kubernetes
  • Kafka
  • Jenkins
  • Terraform
Certifications
  • AWS Certified Solutions Architect – Associate (2017)
  • AWS Certified Developer – Associate (2017)
  • AWS Certified AI Practitioner (2025)
  • Oracle Certified Professional (2011)
  • Sun Certified Programmer (2010)

Contact

Connect with me on LinkedIn to discuss opportunities or learn more about my work.