Open to opportunities

Cesar Vezga

@cesarvezga

Message

Senior backend engineer building scalable Java microservices and faster data pipelines.

Costa Rica

Message

What I'm looking for

I’m looking for a team where I can build and scale backend microservices and data pipelines in AWS/Kubernetes, improve performance end-to-end, and collaborate in async remote settings—while mentoring others and contributing to solid architecture.

I’m a Senior Software Engineer with 26+ years specializing in backend development using Java and the Spring ecosystem. I focus on building scalable microservices, optimizing data pipelines, and enhancing system performance in cloud-native environments with AWS and Kubernetes.

I’ve delivered measurable impact—like integrating data pipelines to optimize a recommendation engine and reducing response latency by 40%. I also enjoy improving real-time, event-driven systems with Kafka and Redis, refactoring business logic into stored procedures, and collaborating in async, fully remote teams while mentoring developers and sharing architectural guidance.

Experience

Work history, roles, and key accomplishments

Senior Software Engineer

FPT

Apr 2023 - May 2026 (3 years 1 month)

Designed and implemented Java Spring Boot backend microservices on a Kubernetes-based architecture, cutting recommendation-engine response latency by 40% via Kafka-integrated data pipelines and Redis caching. Refactored business logic into stored procedures and collaborated asynchronously using GitHub, Jira, and Slack.

Java Spring Boot Kubernetes Microservices Kafka Redis PostgreSQL Solr Terraform Helm

Senior Software Engineer

Taller Technologies

Mar 2021 - Apr 2023 (2 years 1 month)

Maintained and improved EKS microservices performance and enhanced SearchByImage image recognition using AWS SageMaker with robust intelligent-search APIs. Implemented MongoDB Atlas triggers/functions and migrated business logic to stored procedures to optimize resource usage, monitoring, and reliability.

Java Spring Boot AWS Sagemaker MongoDB Atlas Kafka Docker Terraform Datadog GraphQL

Senior Software Engineer

Isthmus 3Piller Global

Oct 2020 - Jun 2021 (8 months)

Implemented and maintained microservices and mentored mid/junior developers. Contributed across backend services using JVM languages and database-driven application components.

Java Scala Kotlin Slick PostgreSQL MySQL Dropwizard Microservices REST APIs

Sr. Java Developer

Snap Finance

Aug 2018 - Apr 2020 (1 year 8 months)

Maintained the Snap Account module while enforcing code best practices and refactoring for performance improvements. Migrated monolithic processes into microservices to modernize backend architecture.

Java Spring AWS Microservices Refactoring SQL PrimeFaces Eclipse

Tech Lead Java

Gft Costa Rica

Apr 2016 - Aug 2018 (2 years 4 months)

Led migration of legacy systems to IDC real-time data processing (Sigma/Omega platform) and mentored/support development teams. Delivered real-time data messaging applications using Java Core and development tooling such as Eclipse and Swing.

Java J2EE Real time Data Processing Messaging Sigma Eclipse Swing Development Leadership

Senior J2EE Application Developer

International Business Machines (IBM)

May 2013 - Aug 2016 (3 years 3 months)

Optimized Solr indexing by distributing large collections into sharded clusters and monitored production performance. Migrated a marketplace web application from Endeca to IBM Watson Explorer, implementing SQL-like query support, a custom WEX JDBC driver, and mentoring a Brazil development team.

Solr IBM Watson JDBC Websphere Jenkins Hibernate Linux

Senior Engineer

Avventa World Wide

Feb 2011 - May 2013 (2 years 3 months)

Designed and implemented a business rules manager using OpenRules and enhanced J2EE business-logic tier code. Supported release management across environments and implemented SOAP/RESTful integrations while debugging SQL scripts and assisting technical leads.

Java J2EE OpenRules Spring Hibernate Websphere SOAP REST Oracle

J2EE Technical Leader

Vista Verde Soft

Mar 2009 - Dec 2010 (1 year 9 months)

Provided J2EE technical leadership by translating client needs into J2EE solutions and supporting developers with best practices like TDD and Scrum. Automated testing and quality assurance using Hudson, FindBugs, Selenium, and JUnit, and delivered Spring MVC/AOP and JSF/Ajax features with Hibernate and Oracle.

J2EE Java Spring MVC Spring AOP JSF Selenium Junit Hudson Hibernate Oracle

Technical Leader / J2EE

Sysco & EPROM

Jun 2007 - Feb 2009 (1 year 8 months)

Delivered J2EE analysis, design, and development support for WebSphere-based systems and integrated real-time messaging components. Contributed across Spring MVC, GWT, and Hibernate layers using established build and testing toolchains.

J2EE Websphere Spring Spring MVC GWT Ant Hibernate Oracle XML

Software Developer / J2EE

Vista Verde Soft

Mar 2003 - Jun 2007 (4 years 3 months)

Designed and developed a J2EE framework to migrate Unisys LINC specifications to an open environment. Built automated tooling to migrate Linc source code to Java and implemented Java framework support for LINC behavior.

Java J2EE JSP Servlet JDBC Migration Frameworks XML Unisys LINC