C# Software Engineer — Game Math & High-Performance Server

Greentube GmbH; Wien; Hybrid; EUR 41,000 - 51,000; Full time

Benefits offered by this job

Flexible working hours

Hybrid work model

Training budget

Vienna HQ office

Subsidized transport & e-bikes

On-site fitness room

Employee discounts & healthcare

Job summary

Greentube GmbH in Vienna seeks a Software Engineer who shapes the mathematical and technical foundation of casino gaming experiences. You will drive a high-performance server framework powering slot and casino games used by partners worldwide.

This role blends mathematics with software engineering, requiring collaboration with the mathematics team, design of server-side SDK components, and ongoing improvements to performance, scalability and code quality.

Qualifications

• 3+ years of professional C# software development experience.
• Strong interest in mathematics, esp. combinatorics and probability.
• Experience in code review and ensuring high quality.
• Ability to design and maintain software frameworks and APIs.
• Understanding of design principles and patterns.
• Experience with unit and integration testing.
• Structured, proactive, and detail-oriented work style.
• Strong collaboration and solution-oriented mindset.
• Excellent spoken and written English.

Responsibilities

• Review and evaluate mathematical implementations for quality and performance.
• Collaborate with the internal mathematics team to ensure accuracy.
• Design and implement server-side SDK components for games.
• Improve performance, scalability, and maintainability through best practices.
• Develop simulation tools to validate game logic.
• Contribute to framework improvements and development processes.
• Support knowledge sharing across teams and stakeholders.

Skills

C#

Mathematics interest

Code review

API design

Design patterns

Unit testing

English proficiency

Tools

Visual Studio

Git

CI/CD

Job description

Greentube GmbH in Vienna seeks a Software Engineer who shapes the mathematical and technical foundation of casino gaming experiences. You will drive a high-performance server framework powering slot and casino games used by partners worldwide.

This role blends mathematics with software engineering, requiring collaboration with the mathematics team, design of server-side SDK components, and ongoing improvements to performance, scalability and code quality.