Senior Java Developer

NextChallenge is seeking an experienced Senior Java Developer to join a backend team working on a high-load B2B gaming platform's back-office system. The role involves developing new functionality, improving scalability and reliability, and modernizing the platform from monolithic to distributed architecture while handling millions of daily transactions.

• Develop new backend functionality for the platform
• Improve system performance, scalability, and reliability
• Participate in refactoring and modernisation of legacy components
• Contribute to architectural discussions and technical design
• Investigate and resolve production issues
• Assess technical feasibility and complexity of business requirements
• Collaborate closely with backend engineers, technical leads, and product teams

• 5+ years of Java development experience
• Strong understanding of backend architecture and distributed systems
• Experience working with relational databases and SQL
• Familiarity with message-driven systems (Kafka or similar)
• Experience in improving or refactoring existing production systems
• Strong problem-solving and debugging skills
• Comfortable working in collaborative environments with code reviews and shared ownership
• Intermediate or higher English level

Work Environment: Fully remote work with optional office visits aligned to your location

Schedule: Flexible work schedule with focus on performance and results

Benefits:

• Competitive compensation reflective of expertise
• Unlimited paid time off and sick leave
• Private medical insurance compensation (full or partial)
• Flexible benefits customization (gym, language courses, Netflix, spa, etc.)
• Continuous learning and career development opportunities
• Referral bonuses
• Biannual education raffle for unrelated learning
• International collaborative team environment
• Corporate events and team-building activities