Senior Java Developer (with Python)

Remote in Athens | B2B Contract Role Overview We are looking for a Mid/Senior Java Engineer who will work across several internal services at the same time, shaping backend architecture, contributing to product decisions, and supporting multiple engineering teams. This is not a single-project assignment, you will touch 3-4 microservices in parallel, work closely with Product Owners, and bring a strong technical point of view. The ideal person is hands-on, analytical, comfortable with cloud-native environments, and open to working with AI-supported solutions as part of modern engineering. Key Responsibilities: Build and maintain backend services and APIs in Java Work across multiple microservices (3-4) simultaneously Collaborate closely with Product Owners on technical direction Contribute to cloud-native architecture on AWS (90%) + Azure (10%) Deploy and operate services using Kubernetes and Docker (must-have) Contribute to Python-based services when needed Work with analytics and data insights to support decisions Follow SDLC best practices: testing, code reviews, documentation Collaborate with DevOps on CI/CD, deployments, scaling Requirements: 5+ years in Java engineering Strong experience with microservices / distributed systems Very solid knowledge of AWS services Strong Kubernetes + Docker skills (must-have) Ability to contribute to Python codebases Good understanding of CI/CD, REST APIs, SQL Comfortable working with AI-driven tools and modern development workflows Proactive, ownership-driven, adaptable to multi-project environments What's on Offer: Work on cutting-edge AI systems used globall. Dynamic, multi-disciplinary teams engaged in digital transformation. Remote-first work model Long-term B2B contract 20+ days paid time off Apple gear Training & development budget Diversity and Inclusion Commitment We are dedicated to creating and sustaining an inclusive, respectful workplace for all -regardless of gender, ethnicity, or background. We actively encourage applicants from all identities and experience levels to apply and bring your authentic self to our fast-paced, supportive team.