Java Backend Developer

Quick Facts

• Role: Java Backend Developer (2 openings)
• Focus: Authentication & wallet backend microservices
• Work model: Fully remote (UE)
• Duration: 6 months (possible extension)
• Start: Immediate to 2 weeks preferred

Description

Join a team enhancing core authentication and wallet backend services. You will design, build, and maintain scalable microservices, develop secure OAuth-compliant API integrations, and collaborate with the Tech Lead and product owners to manage the backlog.

Responsibilities

• Design, build, and maintain scalable microservices for core authentication and wallet products
• Take proactive ownership of tasks and drive solutions independently
• Collaborate with the Tech Lead and product owners to manage backlogs
• Develop secure API integrations that follow core security standards (OAuth)

Requirements

• Senior-level experience with modern Java (Java 21 / 25)
• Strong experience with microservices architecture and RESTful APIs
• Hands-on experience with Google Cloud Platform (GCP)
• Experience with Kubernetes, Docker, Terraform, Helm, GitLab, and Jenkins
• Solid experience with PostgreSQL
• Hands-on experience with OAuth/authentication protocols
• Proactive, independent mindset in high-workload environments

Nice to Have

• Experience with AI agents/LLM tools (e.g., OpenAI, Claude)
• Experience in Fintech, Wallet, or Identity systems