Senior Software Engineer - Backend

It’s an exciting time to join us! We’re entering new markets, developing new technologies, and moving step by step towards our goal of exciting the world. As our business grows, the number of exciting people initiatives grows with it, and we’re looking for a new colleague to partner with our team to bring these to life.

We're looking for a Senior Software Engineer to join our Application Frameworks team.

This is an exciting opportunity to help implement the common application development tool kits and frameworks (which internally we call Meta) that will be leveraged across all teams within Happening engineering. Your work will streamline building products, maintaining operational excellence, and meeting the needs of handling millions of interactions of end customers daily, built by hundreds of teams across the organization.

You will be working alongside talented engineers to create foundational libraries and tools that will set the standard for application development across the entire company.

What You'll Do

• Design and develop application frameworks and SDKs. Create reusable libraries, components, and tools that will empower engineering teams to build robust, scalable applications more efficiently.
• Implement best practices for Kubernetes optimization. Build applications that are optimized to run on k8s, taking into consideration state, restarts, continuous delivery, and GitOps principles.
• Create storage system integrations. Develop interfaces and abstractions for various storage technologies including relational databases, NoSQL, and event-driven or streaming architectures like PubSub.
• Drive technical standards. Collaborate with teams across the organization to establish and promote engineering best practices, coding standards, and architectural patterns.
• Support adoption and provide guidance. Help engineering teams successfully adopt our frameworks and tools through documentation, examples, and direct assistance.

What We're Looking For

• At least 5 years of software engineering experience with a focus on building maintainable, scalable systems.
• Strong proficiency in Go, Erlang, Elixir, or TypeScript with the capability and drive to learn new languages as needed.
• Experience building SDKs and Libraries ideally in a professional capacity or in open source projects with reasonable traction.
• Kubernetes expertise for building applications optimized to run on k8s, taking into consideration state, restarts, continuous delivery, and GitOps principles.
• Database and messaging system knowledge for building apps that leverage storage systems with relational databases, NoSQL, event-driven or streaming architectures like PubSub.
• Impact-driven mindset. You prioritize what's good for the business and supporting product engineers over working with trendy technologies.
• Commitment to simplicity. You strive for creating solutions that are simple to use and maintain, avoiding unnecessary complexity.
• Operational excellence focus. You're comfortable in an environment where operational excellence—from running software to adhering to team working cadences—is critical for sustainable success.
• Strong communication and collaboration skills. You can effectively work with diverse engineering teams and explain complex technical concepts to various stakeholders.

About us

We are a global technology company dedicated to building the future of entertainment and fan-centric experiences.

With commercial markets in Brazil, Belgium, Poland, Romania, and Serbia, our company has evolved from a leading sports betting and gaming operator into a diversified product and tech organization, gathering more than 5,000 dedicated people across our teams.

Shaping the future of play

At Super, we are creating a unique entertainment ecosystem engaging millions of customers worldwide. Our product and technology teams in Amsterdam (the Netherlands), Madrid (Spain), Zagreb (Croatia), London (UK), and Bucharest (Romania) are building the playstack that will champion the future of play.

Our ambitious growth strategy focuses on expanding across Europe and Latin America while delivering immersive customer experiences and creating lasting value for our customers, partners, and communities.

Global recognition and standards

The company’s long-term strategy is supported by world-class investors. In 2019, Blackstone, the world’s largest alternative asset manager, made a strategic minority investment of €175 million. In 2025, we strengthened our financial position through a €1.3 billion refinancing agreement, reinforcing our partnership with Blackstone and enabling accelerated global expansion.

Super is committed to the highest standards of compliance, safety, and responsibility. As such, we are active members of the International Betting Integrity Association (IBIA) and the European Gaming & Betting Association (EGBA).