Senior Software Engineer (Java)

Delasport — Implementing Technological Solutions Here and Now

Delasport is an iGaming Software company providing Sports Betting & Online Casino software, and turnkey B2B solutions. Established in 2010, Delasport delivers a one-stop-shop solution of Sports Betting and Online Casino from a White-Label, with a full range of management services to a Plug&Play iFrame and a complete Turnkey. We are establishing an R&D centre in Kyiv, and are looking for top talents to join our team.
 

We are looking for a Senior Java Backend Engineer to help us build a modern, distributed system. This role is critical for ensuring scalability, performance, and reliability as we rebuild and extend existing functionality. You’ll own the end-to-end development process, support the created product, and adapt quickly to a dynamic environment with evolving product ownership.
 

RESPONSIBILITIES

• Design and implement scalable APIs and backend services to support high-availability applications
• Drive the full software lifecycle — design, implementation, testing, deployment, and long-term support
• Maintain and optimize systems for performance, reliability, and scalability
• Collaborate with product owners, designers, and engineers in a fast-changing environment to align business goals with technical execution
• Mentor and guide engineers through code reviews, design discussions, and best practices
   

REQUIREMENTS

• 5+ years of backend development experience with strong expertise in Java and object-oriented design
• Solid knowledge of design patterns, system architecture, and scalability principles
• Hands-on experience with databases (SQL/NoSQL) and message-driven systems(e.g., Kafka, RabbitMQ)
• Familiarity with containerization and orchestration (Kubernetes, Docker)
• Experience with automated testing (unit, integration, performance)
• Strong track record of building and supporting production-grade, high-load systems
• Ability to thrive in a dynamic, fast-changing environment with shifting requirements and new product stakeholders
• Excellent communication skills and a proactive, ownership-driven mindset
• At least Upper-Intermediate English level
   

WHAT WE CAN OFFER YOU

• Flexibility to work remotely or from our offices in Kyiv or Sofia
• Personal time off (21 business days of paid vacation, paid days on special occasions, sick leaves, emergency days off)
• Public holidays
• Health insurance with the broker, which is available from the first month of cooperation
• Life insurance with the broker, which is available from the first month of cooperation
• Modern technical equipment
• English courses with native speakers
• Ukraine-based educational programs
• Sports activities reimbursement
• Corporate entertainments
• Happy hours in the office on Fridays
• Gig contract support