Senior Java Developer
Confirmed on the employer's own hiring board on Oct 12, 2026. First seen by Alion on Apr 15, 2026.
About Roller Gaming
Roller Gaming, based in Sofia and London, is a dedicated player in the iGaming/iGambling/Sportsbetting/iLottery domain. We provide professional services and develop next-generation native applications and web-based platform solutions for global leaders in the Online Betting and Gaming industries.
Initially, it started as a product company with a team of specialists developing its own product. Later, we successfully created a team of software engineers skilled in React JS, Java, Android, and iOS.
Our team of talented professionals works hybrid or remotely from various cities across Bulgaria.
Why Join Us at Roller?
If our values align with yours, you could be our next team member.
Discover what awaits you at Roller Gaming:
A culture of transparency, loyalty, and mutual respect.
A collaborative environment where team dynamics drive success.
Opportunities for professional growth and innovation.
The flexibility to work hybrid or remotely, ensuring a healthy work-life balance.
A company that prioritises health and well-being.
Engaging internal events, charity initiatives, sports activities, and a friendly, supportive team.
Be part of a thriving team shaping the future of gaming technology.
The Role overview:
Our teams are growing and we are looking for an experienced Java Software Engineer in a service-oriented or microservices architecture.
Our partners are industry-leaders in the lottery industry providing innovative thinking and exciting, revenue-generating games and services to customers over the last decade and more!
The full suite of digital solutions includes world-class mobile application development, interactive games, player engagement platforms, iLottery systems and services, plus a variety of software solutions to help lotteries manage their operations.
Duties and Responsibilities
Develop new features and functionality for high transaction, large scale websites and services using Java
Participate actively in the design, implementation, and code review process of full stack end-to-end solutions.
Design modular, scalable, and portable solutions to meet project requirements.
Write clean, readable, and reusable code within specified deadlines following the agile methodology.
Organize and prioritize work effectively to ensure timely project delivery.
Creating and maintaining testable code.
Qualifications, Skills and Experience
Proven track record for successful completed projects, experienced in Enterprise Java Software Development in a service-oriented or microservice architecture
Proficient in Java / 6+ years of experience and back-end-programming and related frameworks (Spring, Spring Boot, Hibernate).
Proven experience in designing, building, and maintaining RESTful APIs
Experience working with Relational Databases such as PostgreSQL;
Experience working with message queues - RabbitMQ, Kafka or similar
Experience in working with Docker, Kubernetes and AWS is an advantage
Experience with CI/CD pipelines, including Jenkins/Bamboo and GitLab
Experience with reactive programming using Vert.x or similar is an advantage
Proficiency in Version Control Systems, specifically Bitbucket, GIT.
Practical knowledge and utilization of containers, specifically Docker, ideally coupled with Kubernetes expertise.
Excellent problem-solving skills and the ability to work well in a collaborative team environment, but independently as well
Bachelor's degree in Computer Science, Software Engineering, or related field or relevant professional experience
Strong communication skills in both English and Bulgarian language and ability to convey technical concepts clearly.
Our Benefits:
Remote Office - Flexible hybrid form of working, option for working fully remotely
Parking Space - We provide free parking spots
Fun Office Space - We offer a game zone and a relaxation area
Health Insurance - Additional private health insurance, including dental care plan
Personal Development - Company-sponsored training budget to further develop your skills
Employee Referral Programme - Receive a bonus for referring a friend
Holidays - Enjoy extra 5 days after your 1st and 5th year
Social Events - We love to celebrate our success together
Family Insurance - Add insurance to a family member
Offering sport cards - 100% sponsored by the company