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Omar Rosales

Available to hire

I'm Omar Rosales, a Senior Java Engineer with over 10 years of experience delivering scalable Java, Spring, and cloud-based solutions.

About

I’m Omar Rosales, a Senior Java Engineer with over 10 years of experience delivering scalable Java, Spring, and cloud-based solutions. I thrive on solving complex problems, migrating legacy systems to modern frameworks, and collaborating with cross-functional teams in Agile environments.

I’m highly motivated to learn and open to feedback, committed to continuous growth, and comfortable working independently or as part of a team. I enjoy building robust APIs, optimizing performance, and mentoring teammates to raise the team’s overall capability.

  • 18 years' experience
  • Joined August 2025

Languages

  • EnglishFluent
  • Spanish; CastilianAdvanced

Industry experience

  • Software & Internet
  • Financial Services
  • Government
  • Professional Services

More experts in Halifax, Canada

Work experience· 14 roles

Senior Software Developer · UnisysOct 2018 – Present · 8 yrs 2 mos

Led the migration of a project from EJBs to the Spring Framework, incorporating REST APIs. Modernized over 70 components, including applications and libraries. Refactored and improved 9 Java web services for seamless communication with legacy Oracle systems. Built pipelines using Azure DevOps.

Senior Software Developer · Unisys, CanadaOct 2018 – Present · 8 yrs 2 mos

Led the migration of a project from EJBs to the Spring Framework, incorporating REST APIs. Modernized over 70 components including applications and libraries. Refactored and improved 9 Java web services to facilitate seamless communication with legacy Oracle systems. Built pipelines using Azure DevOps.

Technical Project Manager · Experis, PeruMar 2018 – Aug 2025 · 7 yrs 6 mos

Reviewed and advised on the architecture of 53 projects involving Java, Oracle, Azure, Liferay, SOAP, and RESTful APIs. Liaised between Commercial and Technical Teams to lead the successful implementation of a new intranet and website for insurance brokers on a cloud platform. Designed and conducted workshops to gather, analyze, and document requirements and processes; led the implementation of the new client website on a cloud platform.

Technical Project Manager · ExperisMar 2018 – Sep 2025 · 7 yrs 7 mos
Software Developer Engineer · QTC, PeruFeb 2016 – Aug 2025 · 9 yrs 7 mos
Software Developer Engineer · QTCFeb 2016 – Sep 2025 · 9 yrs 8 mos
Sales Process Analyst · Aluminium Industries, AustraliaMar 2015 – Aug 2025 · 10 yrs 6 mos
Sales Process Analyst · Aluminium IndustriesMar 2015 – Sep 2025 · 10 yrs 7 mos

Education· 6

Master of Engineering Management · The University of Melbourne, Australia2014
Bachelor of Science (Major in Information Technology Engineering) · Pontificia Universidad Católica del Perú, Perú1998 – 2004
Master of Engineering Management · The University of Melbourne2014
Bachelor of Science (Major in Information Technology Engineering) · Pontificia Universidad Católica del Perú1998 – 2004

Certifications and awards· 15

DevOps Foundations Certification2024 – 2025
Microservices with Spring Cloud2023 – 2025
Java Full Stack2021 – 2025
Master Microservices with Spring Boot and Spring Cloud2020 – 2025

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