# Senior Java Software Engineer (Oracle) - OP02295 - **Company:** Dev.Pro - **Location:** SΓ£o Paulo, SP, BR (Remote) - **Salary:** Salary not disclosed - **Contract:** Not specified - **Posted:** 2026-10-29 ## Job description New opportunities in Latin America! 🟒 Dev.Pro is a US-based software development company helping tech companies build their products and grow their business. We’re remote-first, and we work with independent contractors in over 55 countries, so you’d be collaborating in a multicultural environment on some really interesting projects. We invite a Senior Java Software Engineer with strong Oracle expertise to join a large-scale platform modernization initiative. You’ll work on a project that involves consolidating multiple platforms around Oracle, designing the database schema for a new application, and supporting a future MySQL-to-Oracle migration. In this role, you'll combine hands-on Java development with advanced database engineering and collaborate with cross-functional teams to deliver reliable solutions. 🟩 What's in it for you Contribute to a large-scale platform modernization initiative that includes a future MySQL-to-Oracle migration Solve complex technical problems across application and database layers, combining hands-on Java backend development with advanced Oracle database engineering Collaborate with cross-functional teams to improve the performance and reliability of a business-critical platform serving 100k users βœ… Is that you? 5+ years of experience building, debugging, and optimizing scalable Java backend applications Strong proficiency in Java 8–17, object-oriented design, design patterns, multithreading, and concurrency Hands-on Oracle development experience in production, with strong knowledge of database internals (indexing, query optimization, partitioning, replication, and transaction behavior) Advanced SQL skills, including performance troubleshooting Experience with production database operations (backup/restore, high availability, disaster recovery, failover), including executing changes with minimal downtime Experience writing unit tests with JUnit and Mockito Experience with cloud platforms (preferably GCP) and Kubernetes or similar orchestration tools Hands-on Linux/Unix experience and scripting skills in Bash, Python, or similar languages Ability to work independently, take ownership of technical tasks, and proactively identify and resolve blockers Strong communication skills and experience collaborating with cross-functional Scrum teams and leading technical discussions Upper-Intermediate+ English level Desirable Hands-on Oracle DBA experience in production Experience with major Oracle version upgrades or large-scale database migrations Oracle certification Experience with Groovy and Gradle Experience with CI/CD pipelines 🧩Key responsibilities and your contribution In this role, you'll combine Java backend development with Oracle database engineering, troubleshooting production issues, improving performance, and supporting migration activities. Design, develop, and maintain scalable Java backend applications Design the Oracle database storage schema for a new application Support the planning and execution of a future MySQL-to-Oracle migration Develop and optimize SQL queries to improve database performance Troubleshoot complex application and database issues in production environments Support production database operations and implement changes with minimal downtime Write and maintain unit tests using JUnit and Mockito Collaborate with cross-functional teams on technical design and implementation decisions Create and maintain technical documentation for relevant project activities Our next steps: βœ… Submit a CV in English β€” βœ… Intro call with a Recruiter β€” βœ… Interview β€” βœ… Signing the Contract Interested? Find out more: πŸ“‹ How to Join Us πŸ’» LinkedIn Page πŸ“ˆ Our website πŸ’» IG Page By submitting application, I've read and agree to the Dev.Pro Private Policy and Consent on Processing of Personal Data . I agree to have my Personal Data being stored and processed by Dev.Pro. [Apply on the company site](https://www.joonow.com/en/job/senior-java-software-engineer-oracle-op02295-sao-paulo-sp-zrejyn5sg9/apply)