Senior Java Developer

OpenTag is a well-funded International company within the field of Sports Betting and iGaming.

We are currently looking for a Senior Java Developer to join our Sport-Casino team.

Our mission is to create the best software through empowered teams, centralized around our product. We do this to help great organizations reach ambitious goals and fulfill their purpose with equally great teams.

Our platform is built in Golang and Java(Spring boot) with heavy usage of best practice packages, development approaches, and infrastructure. We take pride in innovation, engineering excellence, and continuous improvement.

Requirements

• 4+ Years in Java and OOP development

• 2+ Years with Spring framework

• Hands-on experience with relational databases (PostgreSQL)

• Hands-on experience with Microservices

• Hands-on experience with Kafka/AMQP protocols

• Hands-on experience with gRPC

• Hands-on experience with writing BDD tests

• Containers experience (Docker or K8s) – advantage

• Experience with Agile/Scrum methodologies

• Excellent written and verbal communication in English

Responsibilities

• Collaborate with R&D leads on requirements gathering, solution design, prototyping, development, testing, and deployment.

• Work closely with the Delivery Manager and Product Owners to ensure projects are delivered on time and within scope.

• Maintain high code quality through code reviews and knowledge-sharing sessions.

• Identify and proactively address potential issues related to architecture, system design, application flow, or code quality.

• Drive innovation by introducing new technologies, tools, and engineering best practices.

What do We offer?

• An inspiring workspace with awesome teammates and a great vibe

• The chance to build a scalable online betting platform — from the ground up

• Cutting-edge tech stack and real impact on a fast-growing product

• Learning opportunities with a dedicated training budget to level up your skills

• 25 vacation days + an extra day off to celebrate your birthday 🎉

• Premium health insurance for your peace of mind

• Birthday vouchers and little surprises along the way

• Free snacks, team lunches, and great coffee (because fuel matters ☕)

• Sports card, transportation, and food allowance

• Quarterly team events that bring everyone together

Excited to join us? Click the Apply button and let’s build something amazing together!