Senior Java Developer
GR8 Tech is a leading B2B provider of iGaming solutions that empowers operators to grow, lead, and win.
We deliver high-impact, full-cycle tech solutions designed to scale. From seamless integration and expert consulting to long-term operational support, our platform powers millions of active players and drives real business growth. It’s more than just a product — it’s the iGaming Platform for Champions, built for those who play to lead.
We know the game and how to take it to the next level. With 1000+ talented professionals on board, we don’t just build tech — we build success stories for iGaming operators all over the world.
Our ambition drives us, our people make it real. Join us and be part of building champion-level success!
What You’ll Be Driving:
- Design and implement scalable and efficient software architectures.
- Write, test, and debug complex code for new and existing software applications.
- Provide guidance and mentorship to junior engineers and team members.
- Conduct thorough code reviews to ensure code quality, security, and best practices.
- Create and maintain comprehensive technical documentation for software development and system design.
- Lead and manage software development projects, ensuring timely delivery and quality(shared responsibility with Delivery Manager)
- Work closely with cross-functional teams, including product management, design, and operations, to align development efforts with business goals.
- Research and implement new technologies and methodologies to improve software performance and development processes.
- Identify and resolve complex software issues and technical challenges.
- Develop and enforce testing protocols to ensure software reliability and performance.
- Drive continuous improvement in software development practices and processes.
- Communicate effectively with stakeholders, including presenting technical concepts and project updates.
- Deliver code to production in timely manner according to business expectations
What Makes You a GR8 Fit:
Advanced knowledge of Java Programming
- Proficiency in core Java concepts such as OOP (Object-Oriented Programming), multithreading, collections, exception handling, and memory management.
- In-depth understanding of Java 8+ features, including Streams API, lambda expressions, Optional, and the new Date and Time API.
- Mastery of Java concurrency and synchronization, thread pooling, and concurrent data structures.
- Experience with JVM internals, including garbage collection, performance tuning, and profiling
Java Frameworks and Libraries
- Extensive experience with Spring Framework (Spring Boot, Spring MVC, Spring Data, Spring Security).
- Proficiency in Hibernate or JPA for ORM (Object-Relational Mapping) and data access.
- Familiarity with other Java-based frameworks like Apache Camel, Vert.x, or Micronaut.
- Knowledge of build tools like Maven and Gradle for project management and dependency management.
Web Development
- Proficiency in building RESTful APIs and web services using frameworks like Spring Boot or JAX-RS.
- Understanding of web technologies such as HTML, CSS, JavaScript, and front-end frameworks (e.g., Angular, React, or Vue.js).
- Experience with asynchronous programming and handling real-time data using WebSockets.
Testing and Quality Assurance
- Expertise in unit testing with JUnit, TestNG, and integration testing frameworks.
- Knowledge of mocking frameworks such as Mockito or PowerMock.
- Familiarity with behavior-driven development (BDD) tools like Cucumber or JBehave.
- Experience with performance testing tools like JMeter or Gatling.
Database and Persistence
- Advanced skills in SQL and experience with relational databases (e.g., PostgreSQL, MySQL, Oracle).
- Proficiency in working with NoSQL databases (e.g., MongoDB, Cassandra, Redis).
- Experience with database migration tools like Flyway or Liquibase.
DevOps and Continuous Integration
- Experience with CI/CD tools specific to Java projects, such as Jenkins, GitLab CI, or Travis CI.
- Proficiency in using Docker for containerization and Kubernetes for orchestration of Java applications.
- Knowledge of infrastructure as code (IaC) tools like Terraform or Ansible for provisioning and managing infrastructure.
Performance and Scalability
- Skills in profiling and monitoring Java applications using tools like VisualVM, JProfiler, or YourKit.
- Experience in optimizing application performance, including memory management, CPU usage, and response time.
- Understanding of load balancing, caching strategies (e.g., EHCache, Hazelcast), and distributed systems.
Security
- Knowledge of secure coding practices and understanding of common security vulnerabilities (e.g., OWASP Top Ten).
- Experience with authentication and authorization mechanisms, including OAuth2, JWT, and SAML.
- Proficiency in implementing security features within the Spring Security framework.
Advanced Networking
- Understanding of network programming using Java NIO and async I/O.
- Experience with messaging systems like Apache Kafka, RabbitMQ, or ActiveMQ.
Additional Tools and Technologies
- Familiarity with version control systems like Git and collaboration platforms like GitHub or Bitbucket.
- Knowledge of code quality and static analysis tools such as SonarQube, PMD, or Checkstyle.
- Experience with logging frameworks like SLF4J, Logback, or Log4j.
Why You’ll Love Working Here:
Benefits Cafeteria
An annual fixed budget that you can use based on your needs and lifestyle. You decide how to allocate it:
- Sports – gym, yoga, or any activity to keep you active;
- Medical – insurance and wellness services;
- Mental health– therapy or coaching support;
- Home office – ergonomic furniture, gadgets, and tools;
- Languages – courses to improve or learn new skills.
Work-life
- Parental support with paid maternity/paternity leave and monthly childcare allowance;
- 20+ vacation days, unlimited sick leave, and emergency time off;
- Remote-first setup with full tech support and coworking compensation;
- Regular team events – online, offline, and offsite;
- Learning culture with internal courses, career development programs, and real growth opportunities.
Our Culture & Core Values
GR8 Tech culture is how we win. Behind every bold idea and breakthrough is a foundation of trust, ownership, and a growth mindset. We move fast, stay curious, and always keep it real, with open feedback, room to experiment, and a team that’s got your back.
- FUELLED BY TRUST: we’re open, honest, and have each other’s backs;
- OWN YOUR GAME: we take initiative and own what we do;
- ACCELER8: we move fast, focus smart, and keep it simple;
- CHALLENGE ACCEPTED: we grow through challenges and stay curious;
- BULLETPROOF: we’re resilient, ready, and always have a plan.
To keep things efficient, please apply only for roles that closely match your experience.
