Senior Software Engineer

Betway Global; Kraków; On-site; PLN 170,000 - 260,000; Full time

Job summary

Super Group International is seeking a Senior Software Engineer in Kraków to drive design, development, and evolution of our technology stack. You’ll build robust, scalable platforms and hands‑on contribute to architecture decisions across services and interfaces.

You will work with .NET 8+ and C# 8+ in a microservices environment, utilizing Elasticsearch, SQL Server (EF Core, Dapper), RabbitMQ/Kafka/Service Bus, Redis and modern frontend frameworks.

Qualifications

• Excellent communication and ability to translate user needs into design.
• Collaborate with cross functional teams to meet goals.
• Strong organizational skills with multiple projects.
• Attention to detail and commitment to quality work.
• Adaptable in fast paced environments with resilience.
• .NET 8+ proficiency for Web APIs and background services.
• Experience with Elasticsearch, SQL Server EF Core and Dapper.

Responsibilities

• Own technical design and architecture decisions for scalable systems.
• Develop web applications and services across platforms with CI/CD.
• Write and review high quality code and tests.
• Ensure DevOps alignment and delivery timelines with stakeholders.
• Collaborate on technical direction and project planning.

Skills

.NET 8+

C# 8+

Elasticsearch

MS SQL Server (EF Core & Dapper)

Azure DevOps

RabbitMQ / Kafka / Azure Service Bus

Frontend frameworks (Angular / React /

Redis

Microservices

Unit testing

Tools

Azure DevOps

Elasticsearch

Entity Framework Core

Dapper

RabbitMQ

Kafka

Azure Service Bus

Redis

Job description

We’re Super Group, the NYSE-listed digital gaming company behind some of the world’s leading Sports and iGaming brands, including Betway and Jackpot City. We’re a powerhouse built on decades of expertise and we’re changing the game for good. Our mission is to give our customers a superclass entertainment experience.

Who we’re looking for

We’re on a thrilling journey of growth and innovation, and we need passionate, driven individuals to join us. At Super Group International, every day is action-packed, and we expect you to bring your A-game. In return, you’ll find a supportive environment where your skills can flourish and your career can soar.

Why we need you

We’re building experiences that wow our customers – and that starts with bold, curious people who want to do work that matters.

If you’re hungry to grow, excited by impact and ready for a challenge that will supercharge your career, this could be your moment.

As our Senior Software Engineer, you’ll play a key part in driving design, development and the evolution of our Technology stack, getting hands‑on with ensuring our platforms are robust, scalable and ready for what’s next. Your drive and ideas will help us move faster, improve smarter, and stay ahead of the game.

What you’ll do

You’ll take ownership of work that gives us our competitive edge, including:

• Collaborate with stakeholders to understand user requirements and translate them into clear technical design documents
• Design scalable software architectures that support both current and future cross-functional needs, including software, hardware and communication components
• Develop high-level system design diagrams and implement moderate-to-complex web applications across multiple platforms
• Design, build, test and maintain software solutions including applications, websites, data processes and user interfaces
• Ensure code quality and DevOps alignment through CI/CD pipeline development and continuous improvement
• Conduct code reviews, champion coding standards and drive adoption of engineering best practices
• Collaborate with project management to define technical direction and plan delivery timelines

This list covers your core responsibilities – with plenty of room to stretch, explore and take on new challenges as we grow.

What you’ll bring

You’re someone who brings:

• Clear, confident communication (written and verbal), and the ability to breakdown complex ideas
• A collaborative mindset, working smoothly with cross‑functional teams to hit shared goals
• Strong organisational skills and the ability to manage multiple projects without dropping the ball
• Exceptional attention to detail and a commitment to high‑quality work
• Adaptability – you stay sharp, productive and positive in fast‑moving environments
• Proficient in .NET 8+ for developing Web APIs and Worker Services
• Solid experience with C# 8 and above
• Hands‑on experience with Elasticsearch
• Strong working knowledge of MS SQL Server, including Entity Framework Core and Dapper
• Familiarity with message queueing systems such as RabbitMQ, Kafka or Azure Service Bus
• Proficient with Azure DevOps, including Repos, Pipelines and Releases
• Experience with one or more modern frontend frameworks: Angular, React or Vue
• Understanding of in‑memory and distributed caching using tools like Redis
• Development experience in microservices architecture
• Solid understanding of unit testing practices and frameworks

Desirable skills you’ve got up your sleeve

It would be great if you also have some the following skills:

• In‑depth knowledge of sports betting markets, including odds calculation, betting types and market trends
• Previous experience in the online gaming or casino industry, with a strong understanding of player behaviour and industry regulations
• Familiarity with gambling regulations and compliance requirements in various jurisdictions, ensuring adherence to legal standards
• Experience in developing and executing customer retention strategies

Our values are non-negotiables

Our culture is underpinned by core values that are linked to key behavioural competencies. Along with the below behavioural competencies, these are essential for all employees in order for you to embed in and drive our culture forward.

These competencies are:

• Ownership and accountability
• Initiating action
• Resilience
• Team orientation
• Integrity

What you’ll get back

We invest in your growth and wellbeing, so you can bring your best:

• Supergrowth is real here. Our learning and development programmes give you the tools, training and opportunities to level up fast.
• Your progress matters. Our Performance tool ensures you get meaningful feedback to support your development and superdrive your career.
• Support that has your back. Our Employee Assistance Programme offers resources for you and your family.

At Super Group, your experience matters. We’re honest, fair, and focused on helping you succeed – and your work will have real impact from day one.