[Hiring] Java Architect @Sertis

Role Description

We’re looking for a hands-on Java Architect to lead the migration of legacy systems from Java 8 to Java 21. This role focuses on defining the migration approach, architecture decisions, and technical direction, while working closely with engineers to ensure smooth execution and system stability.

• Analyze and migrate existing Java 8 codebases to Java 21
• Review and refactor legacy code to align with modern Java standards
• Identify and resolve compatibility and dependency issues
• Ensure system stability, performance, and backward compatibility
• Guide engineers on best practices and modernization approach
• Collaborate with DevOps on build, CI/CD, and deployment
• Optimize performance (JVM tuning, memory, scalability)
• Support troubleshooting during and post-migration

Qualifications

• 4+ years of experience in backend development using Java
• Strong hands-on experience with Java 8 and exposure to newer versions (Java 11, 17, or 21)
• Experience working on Java upgrade or migration projects is strongly preferred
• Solid understanding of modern Java features (Lambda expressions and Stream API, Java Date and Time API, Optional and null safety practices)
• Experience with Spring or Spring Boot frameworks
• Familiarity with dependency management tools (Maven or Gradle)
• Strong understanding of object-oriented design principles
• Experience with REST APIs and backend service development
• Familiarity with version control systems such as Git
• Strong debugging and problem-solving skills
• Ability to work independently with clear ownership of tasks
• Strong English communication skills both in written and spoken communication with the US team
• Willing to work remotely under the US time zones

Requirements

• It's nice if you have experience migrating large or legacy systems to modern Java versions
• Familiarity with microservices architecture
• Exposure to containerized environments (Docker, Kubernetes)
• Experience working in fintech or high-transaction systems
• Understanding of performance tuning and JVM optimization

Benefits

• Fully remote position (work from anywhere under the US time zones)
• Opportunity to learn modern Java practices on a real migration project with senior mentorship
• Collaborative and supportive team environment