Senior Java Engineer

Sportradar; Wrocław; On-site; PLN 180,000 - 320,000; Full time

Job summary

Sportradar is a world-leading sports technology company delivering real-time data across 30+ sports. The Wrocław team designs and maintains high-performance Java services, shaping architecture in a fast-growing real-time data environment.

We seek an experienced engineer who owns complex initiatives end-to-end, mentors peers, and helps elevate testing, CI/CD, and engineering standards. Office-based in Wroclaw with global collaboration.

Qualifications

• 5+ years of professional software development experience with strong Java expertise.
• Ability to design and deliver distributed systems in production.
• Ownership of complex initiatives from architecture to post-incident reviews.
• Mentor others through code reviews and technical guidance.
• Deep understanding of testing strategies, CI/CD, and engineering excellence.

Responsibilities

• Design, build, and operate scalable, high-performance Java services for real-time sports data.
• Take independent ownership of complex technical initiatives from design to production.
• Contribute to cloud-native architecture on AWS, Kafka, and Kubernetes.
• Mentor engineers through code reviews and pairing to foster growth.
• Improve code quality, test coverage, and engineering practices across the team.
• Collaborate with product and engineering leadership on technical direction.

Skills

Java

Distributed systems

Mentoring

CI/CD

Clear communication

Problem solving

Tools

AWS

Kafka

Kubernetes

Microservices

Job description

We’re the world’s leading sports technology company, at the intersection between sports, media, and betting. More than 1,700 sports federations, media outlets, betting operators, and consumer platforms across 120 countries rely on our know-how and technology to boost their business.

Job Description

ABOUT US:TheLive Dataunit is responsible for the development, delivery, and global distribution of real-time sports data across a diverse range of sporting events. Through strong partnerships with rights holders, media organizations, and betting companies worldwide, the unit ensures the seamless provision of accurate, high-quality data across 30+ different sports disciplines, including e-sports.

Our international team develops and maintains a range of advanced platforms to integrate, manage, and analyse data from multiple sources. The development team based in Wrocław focuses on:

In-Game Pipeline– a system for collecting source data, either manually captured by scouts during events or generated through AI-driven computer vision technology.

Prediction Markets – a system focus on reducing any latency and providing the ultra fast feed crafted for the client needs.

THE CHALLENGE:

This is a role for an engineer who wants to own things - not just deliver them. You will take complex technical initiatives from design through to production, work across a high-performing distributed team, and have real influence over the architecture and practices of a platform used by millions of people every day. The problems here are not manufactured. They are the kind that come from operating at genuine scale in a real-time, mission-critical environment.

Key Responsibilities:

• Design, build, and operate scalable, high-performance Java services for sports data and betting products running 24/7
• Take independent ownership of complex technical initiatives from initial design through to production delivery
• Contribute to cloud-native architecture on AWS, bringing experience and judgment to decisions that affect the whole platform
• Mentor engineers around you - through code review, pairing, and the kind of feedback that actually helps people grow
• Drive improvements to code quality, test coverage, engineering practices, and team standards
• Collaborate with product and engineering leadership on technical direction - and push back constructively when it matters
• Build expertise in one of the most technically demanding real-time data environments in the industry

ABOUT YOU:

You are an experienced engineer who can independently design, build, and operate complex software systems. You enjoy solving challenging technical problems, mentoring teammates, and influencing engineering decisions beyond your immediate deliverables.

Required:

• You have 5+ years of professional software development experience with strong Java expertise
• You can design and deliver distributed systems in production, and you understand what it takes to keep them running
• You take ownership of complex initiatives independently - from architecture decisions to post-incident reviews
• You mentor others naturally and perform technical reviews that are direct, constructive, and useful
• You have a deep understanding of testing strategy, CI/CD, and what engineering excellence looks like in practice
• You communicate clearly with technical and non-technical stakeholders and know how to land a difficult message
• Experience with AWS, Kafka, Kubernetes, and microservices at scale is a strong advantage

OUR OFFER:

• A collaborative environment with colleagues from all over the world (Engineering offices in Europe, Asia and US)
• Ability to shape your own workday and career via a clearly defined professional and personal development plan
• Opportunity to work with senior leadership team and develop yourself within an inspiring and fast-growing company
• Vibrant and inclusive community, including Women in Tech and Pride groups which welcome all participants

OUR RECRUITMENT PROCESS:

Initial Screening - A brief conversation with our Talent Acquisition Partner to review your background, experience, and expectations.

Technical Task - A take-home coding assignment designed to reflect our daily work, completed at your convenience.

Technical Interview -An in-depth discussion on your submitted coding task, including a review of your thought process, live coding exercises, and a system design discussion tailored to the level of the role.

Cultural Fit Interview - A conversation with Senior Management to assess your ability to work in a matrix organization and collaborate effectively with stakeholders across the business.

Final Step - Receive feedback and, if successful, an offer!

We believe great products are built by great teams working closely together. While we offer flexible working hours, this role is fully office-based, as we strongly value in-person collaboration, knowledge sharing, fast decision-making, and team connection. We see working together onsite as a key driver of innovation, learning, and success.

Additional Information

At Sportradar, we celebrate our diverse group of hardworking employees. Sportradar is committed to ensuring equal access to its programs, facilities, and employment opportunities. All qualified applicants will receive consideration for employment without regard to age, race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or status as a protected veteran. We encourage you to apply even if you only meet most of the requirements (but not 100% of the listed criteria) – we believe skills evolve over time. If you’re willing to learn and grow with us, we invite you to join our team!