Skill Assessments This user has not passed any tests yet No languages specified.People also viewed * [![Manuel San Ramon](https://jobicy.com/data/server-nyc0409/galaxy/mercury/2026/07/avatar_71614_1784631040.jpg) Manuel San Ramon Digital Operations & Web Solutions Specialist](https://jobicy.com/u/id71614.md) * [![kumanan Chandrakasan](https://jobicy.com/data/server-nyc0409/galaxy/mercury/2026/07/avatar_71594_1784620175.jpg) kumanan Chandrakasan Lead Flutter Developer](https://jobicy.com/u/id71594.md) * [![kamal taouali](https://jobicy.com/data/server-nyc0409/galaxy/mercury/2026/07/avatar_71579_1784614436.jpg) kamal taouali AWS DevOps Engineer](https://jobicy.com/u/id71579.md) * [![Federico Calderon](https://jobicy.com/data/server-nyc0409/galaxy/mercury/2026/07/avatar_71573_1784611636.jpg) Federico Calderon Junior Full Stack Developer](https://jobicy.com/u/id71573.md) * [![Jaisha Naz](https://jobicy.com/data/server-nyc0409/galaxy/mercury/2026/07/avatar_71504_1784575890.jpg) Jaisha Naz Software Engineer](https://jobicy.com/u/id71504.md) * [![Muhammad Talal](https://jobicy.com/data/server-nyc0409/galaxy/mercury/2026/07/avatar_69836_1783609912.jpg) Muhammad Talal Unity Developer & Gameplay Programmer](https://jobicy.com/u/id69836.md) * [![George Trigonakis](https://jobicy.com/data/server-nyc0409/galaxy/mercury/2026/07/avatar_60809_1784435176.jpg) George Trigonakis Application Architect / Senior Backend Developer](https://jobicy.com/u/id60809.md) * [![Victor Rezende](https://jobicy.com/data/server-nyc0409/galaxy/mercury/2026/07/avatar_71162_1784239793.jpg) Victor Rezende Senior Software Engineer](https://jobicy.com/u/id71162.md) [All talent ↗](https://jobicy.com/talent.md) * [Overview](#overview) * [Portfolio](#portfolio) * [Services](#services) ## About Me I am a backend software engineer with experience in transactional systems and data processing. I specialize in Java and in improving legacy systems, with a strong focus on maintainability and performance. I have worked on enterprise environments where diagnosing complex production issues and implementing scalable solutions were part of my daily responsibilities. I enjoy understanding how systems behave under real conditions and turning that knowledge into reliable improvements. My background includes backend service migration, persistence layer redesign, dynamic query implementation, and data access optimization. I have also supported frontend and backend improvements in JSP-based applications when the project required full-stack collaboration. In addition to development, I have experience in technical support and incident resolution, especially in production systems and POS environments. I am comfortable analyzing logs, reviewing Java code, and using SQL to identify root causes and validate fixes. I also have experience building web applications, interactive applications, 2D video games, and 3D visualizations. This has helped me develop a broad technical perspective and adapt to different kinds of software challenges. I value clear communication, autonomous problem solving, and continuous improvement. I am looking for opportunities where I can contribute as a backend developer and keep growing in Java, enterprise systems, and scalable software delivery. Notice Period: Immediately ## Tech Stack & Tools ### Assets and Media [![Image](https://cdn.jsdelivr.net/gh/devicons/devicon@master/icons/blender/blender-original.svg) Blender](https://jobicy.com/talent?tool=blender.md) ### Data Stores [![Image](https://cdn.jsdelivr.net/gh/devicons/devicon@master/icons/mysql/mysql-original.svg) MySQL](https://jobicy.com/talent?tool=mysql.md) ### Development [![Image](https://cdn.jsdelivr.net/gh/devicons/devicon@master/icons/docker/docker-original.svg) Docker](https://jobicy.com/talent?tool=docker.md) [![Image](https://cdn.jsdelivr.net/gh/devicons/devicon@master/icons/git/git-original.svg) Git](https://jobicy.com/talent?tool=git.md) [![Image](https://cdn.jsdelivr.net/gh/devicons/devicon@master/icons/github/github-original.svg) GitHub](https://jobicy.com/talent?tool=github.md) [![Image](https://cdn.jsdelivr.net/gh/devicons/devicon@master/icons/unity/unity-original.svg) Unity Engine](https://jobicy.com/talent?tool=unity.md) ### Languages & Frameworks [![Image](https://cdn.jsdelivr.net/gh/devicons/devicon@master/icons/java/java-original.svg) Java](https://jobicy.com/talent?tool=java.md) [![Image](https://cdn.jsdelivr.net/gh/devicons/devicon@master/icons/php/php-original.svg) PHP](https://jobicy.com/talent?tool=php.md) ## Experience Software Engineer @ ELDAR Nov 2023 - Apr 2026 Cliente: CABAL / Credicoop | Sept 2024 – Abr 2026 • Migración de servicios backend de jPOS1 a jPOS2. • Rediseño de capa de persistencia: migración de Hibernate XML a JPA con anotaciones. • Implementación de consultas dinámicas con Criteria API. • Mejora de mantenibilidad y tipado fuerte en acceso a datos. • Incorporación de Lombok para reducción de boilerplate. Stack: Java, JPA, Criteria API, SQL Cliente: Fiserv | Jun 2024 – Ago 2024 • Implementación de mejoras en aplicaciones web basadas en JSP. • Ajustes en frontend y backend para optimización funcional. • Ejecución y pruebas de aplicaciones en entorno local. • Soporte en validación de cambios en entorno de desarrollo. Stack: Java, JSP, HTML, JavaScript Cliente: Fiserv | Nov 2023 – May 2024 • Diagnóstico y resolución de incidentes en dispositivos POS (POSNet, Clover) mediante análisis de datos y consultas SQL • Análisis de código Java para identificación de fallas. • Elaboración de diagramas UML para debugging estructurado. • Propuestas de mejora sobre sistemas productivos. Stack: Java · SQL Programador & Soporte Técnico @ TECNOAZAR May 2019 - Oct 2023 – Tecno Azar S.A. | May 2019 – Oct 2023 • Análisis de logs y resolución de incidencias en sistemas productivos. • Desarrollo y mantenimiento de aplicaciones web orientadas a la gestión y operación de salas de juego (casinos y bingos). • Desarrollo de videojuegos 2D y aplicaciones interactivas. • Modelado y animación 3D para visualización de pozos progresivos en pantallas externas (TV), integradas a sistemas de juego (slots). • Testing funcional y técnico de aplicaciones. Stack: PHP, JavaScript, HTML, SQL Desarrollador Independiente @ - Jan 2015 - Apr 2019 Desarrollador Independiente • Desarrollo de simulador médico (Fibrosis Quística). • Aplicaciones 3D educativas sobre genética. • Videojuegos multiplataforma (Android, Windows, Linux). Stack: Unity 3D, Blender, C# ## Education UNNOBA Feb 2006 - Dec 2012 Analista en Sistemas Formación avanzada (pendiente de finales) E-Learning UTN Dec 2021 - Feb 2022 PHP y MYSQL inicial Codo a Codo 4.0 Feb 2022 - Jul 2022 Full Stack - Java CFPL 403 Jul 2022 - Nov 2022 Testing de Aplicaciones Escalab - Tech Talents Hub Jun 2022 - Jun 2022 Introducción a Git/Github EDDIS Mar 2020 - Feb 2021 Asistente de Laboratorio de Análisis Clínico EDDIS Oct 2020 - Dec 2020 Asistencia Medica y RCP EDDIS Sep 2018 - Jul 2019 Asistente Comercial Farmacéutico This professional hasn’t added portfolio projects yet. This professional hasn’t listed any services yet.