Senior Java Engineer with Python experience

About the Position

N-iX is looking for a Senior Back-end (Java+Python) engineer to join our team. The Backoffice Support Team is responsible for developing and maintaining internal support platforms and workflows.

Responsibilities8

• Develop, optimize, and maintain backend infrastructure supporting internal tools, Zendesk integrations, and custom services.
• Maintain and extend the internal Postbox system, ensuring stable, real-time communication between customers and the business.
• Collaborate closely with Product, Platform, and Frontend teams to deliver end-to-end solutions.
• Ensure the accuracy and reliability of accounting-related data and the overall resilience of internal services.
• Participate in requirements discovery, refine user stories, and contribute to technical design and architecture discussions.
• Take part in an on-call rotation to support mission‑critical systems.
• Own services from concept to production, including development, deployment, monitoring, and continuous improvement.
• Continuously improve team processes, code quality, and technical foundations.

Requirements13

• University degree in Computer Science or a related field, or equivalent practical experience
• 5+ years of backend engineering experience, with a strong background in Java and Python development
• Strong expertise in Java 21, Spring Boot 3
• Python 3
• MySQL 8, Hibernate
• Apache Kafka
• Solid experience with AWS (S3, RDS, Lambda, Airflow) and cloud-native development
• Experience with CI/CD pipelines (GitLab, Harness)
• Hands-on experience with Kubernetes
• Experience using AI-assisted development tools
• Familiarity with monitoring tools: Grafana, Datadog
• Strong communication skills, ability to run discovery, gather requirements, and write detailed user stories
• English level: Upper-Intermediate or higher

Benefits9

• Flexible working format - remote, office-based or flexible
• A competitive salary and good compensation package
• Personalized career growth
• Professional development tools (mentorship program, tech talks and trainings, centers of excellence, and more)
• Active tech communities with regular knowledge sharing
• Education reimbursement
• Memorable anniversary presents
• Corporate events and team buildings
• Other location-specific benefits not applicable for freelancers