About Us:
Delasport is where technology meets the excitement of sports and gaming! As a leading powerhouse in iGaming software, we provide everything from sports betting to online casinos and player account management. Our platform is designed to make every player feel like the star of the show, with personalized experience and cutting-edge technology at its heart. Since 2010, we've made a significant impact in industry, earning awards and expanding our global presence. With offices in Bulgaria, Ukraine, and Malta, our team of over 500 experts is constantly driving innovation and striving for excellence.
About the Role:
We are looking for a hands-on Java Team Lead to own and evolve the backend architecture of our Sportsbook platform. This is a technical leadership role combining architectural ownership and active development. You will lead a strong backend team while designing and scaling mission-critical, real-time betting systems operating under extreme load and strict consistency requirements. This is not a coordination role - you will directly influence system design, performance, and long-term platform evolution. This role is based in Sofia, Bulgaria, and we welcome candidates who are open to relocating (relocation support provided).
What You’ll Do:
- *Architectural Ownership - *Own and evolve the backend architecture, designing scalable, high-performance distributed systems while leading key decisions around microservices, messaging, data consistency, and long-term technical sustainability.
- *End-to-End Responsibility - *Drive the full software lifecycle and take ownership of production systems, ensuring reliability, performance, monitoring, and operational excellence.
- *Event-Driven & Streaming Systems - *Lead the Kafka-based event architecture, building high-throughput, low-latency pipelines with strong guarantees around consistency, schema governance, and resilience under heavy load.
- *Hands-On Engineering - *Actively develop critical services in modern Java (21+), reviewing complex code and maintaining high standards in architecture, quality, and maintainability.
- *Data & Performance - *Design and optimize transactional and distributed data models (MySQL, MongoDB), ensuring consistency and eliminating performance bottlenecks.
- *Team Leadership - *Lead and mentor backend engineers, drive technical excellence through design reviews, and collaborate closely with Product and DevOps. Employees may be required to participate in an on-call rotation, ensuring availability outside regular working hours to respond to urgent issues as needed as per the On call policy.
What We Offer:
We’re not just about work, we are about creating a great place to grow, connect, and enjoy the journey. Here’s what you can expect when you join us: * Competitive Salary Package: We value your skills, dedication, and contributions * Time Off: *Enjoy *21+ days of annual paid leave so you can rest, recharge, and come back inspired * Bonus & Rewards: Performance-based annual bonuses, special vouchers for birthdays and welcoming a newborn * Health & Wellness: Additional Health insurance including dental care; Co-funding a Multisport/Coolfit card to help you stay active * Extra Benefits: Employee discounts at various retailers and a monthly allowance for public transportation * Great Office Locations: Central office location in Sofia and Plovdiv * Relax & Recharge Zone: *Take a break with colleagues in our *PlayStation and Pool Area - perfect for recharging during the day
Wait, there’s more: * Happy Hour Fridays: *Every Friday we host themed *Happy Hours with snacks, fun activities, and plenty of opportunities to connect and unwind with colleagues * Multicultural Days: *Celebrate diversity and experience the traditions, food, and cultures of teammates from around the world * *Massages at the Office: *Weekly *Free Recreational Massages to help relax during the workday * Chess Lessons: *Sharpen your strategic thinking and enjoy some friendly competition with colleagues * *Sports & Football Team: *We regularly participate in various sports events and have our own Delasport Football Team, competing in the IT League * *Bulgarian Language Lessons: *Bulgarian for Foreigners classes to support smoother communication * *Office Library: Enjoy access to technical literature to expand your knowledge
Who You Are:
- Experience: 7+ years of hands-on backend development with strong Java expertise, including 2+ years leading technical initiatives or engineering teams.
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Technical Expertise:
- Deep knowledge of modern Java (21+), concurrency, JVM, and system design
- Experience building scalable, high-availability, cloud-native microservices
- Strong expertise with Kafka and event-driven architectures (stream processing, schema evolution, contract-first messaging)
- Solid database knowledge: MySQL (transactions, tuning), MongoDB, distributed consistency models
- Familiarity with Docker, Kubernetes, CI/CD, and observability practices
- Soft Skills: Strong communicator, fluent in English,
- Mindset: Ownership-driven, proactive, and comfortable in fast-paced environments.
*Nice to Have: * * Experience in iGaming, Sportsbook, or real-time transaction-heavy systems. * CDC architectures (Debezium) * Redis or distributed caching * Monolith-to-microservices modernization experience
