Senior .NET Software Engineer

Position: Senior .NET Software Engineer

Salary: up to 27600 PLN, B2B; 23000PLN, permanent contract

Working model: Hybrid

Our client is one of the world’s leading companies providing innovative products for the sports industry. They collect, organize, and deliver high-quality sports data, helping sports enthusiasts, media, and betting organizations achieve their goals. They connect people through what they do, and create a better world for sports every single day!

The role

We are currently looking for an experienced talent who would like to join the R&D group and work with us to solve complex problems! As a product company, they are looking for long‑term cooperation. Your role as Senior Developer requires quality engineering experience. You will be a team player cooperating with other Developers, Product Managers, QA, System Architects, and a Tech Leader. You will spend your time mostly on: coding new features (~60%), maintenance and bug fixing (~20%), internal meetings and analyses (~20%).

Requirements

• Minimum 5 years of professional experience in backend development, with a proven track record of deploying production‑grade services
• Sound experience in C# .NET Core
• Proficiency in real‑time messaging systems and technologies such as RabbitMQ and Kafka
• Strong experience with SQL and NoSQL databases like MySQL, PostgreSQL, or MongoDB
• Familiarity with cloud computing platforms such as AWS, Azure, or Google Cloud
• Good understanding of containerized architecture such as Docker, Kubernetes
• Finished studies in a technical field like computer science, mathematics, physics, or a related area
• A very good English (both written and spoken)
• Willingness to work in a hybrid mode

Nice to have

• Experience in frontend frameworks such as Angular, React, or Vue.js
• Proficiency in scripting languages like Python, Bash, PowerShell

Responsibilities

• Lead the development and deployment process of robust, scalable backend services
• Collaborate with system architects, data scientists, and product managers to define and implement business logic and data models.
• Maintain and optimize existing backend systems for performance, reliability, and scalability.
• Conduct code reviews, enforce coding standards, and mentor junior engineers to elevate code quality across the team.
• Stay informed about new backend technologies and assess their usability for current and future projects.
• Establish good relationships with your teammates and partners, understand requirements, create code, automated tests, and documentation.

Benefits

• Life insurance
• Medical care
• Fresh fruits and beverages
• English hours
• E‑learning
• Company library
• Training
• Food card
• Birthday celebration
• Free days & remote work
• Welcome pack
• Team integration bonus
• Happy hours
• Company picnics
• Integration trips