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C# Developer w Kraków, Poland - Jobeax

Your responsibilities

Taking care of existing C#/.NET applications and developing new backend services, APIs, and integrations
Design, develop, and enhance pricing and risk analytics systems (batch and real-time)
Work with large datasets and optimize data processing performance (SQL, in-memory, parallel processing)
Collaborate with front office and risk teams to translate business requirements into technical solutions
Troubleshoot and resolve complex production issues in critical systems
Improve system scalability, performance, and reliability
Contribute to system design and modernization of legacy platforms
Write clean, maintainable, and efficient code following best practices
Collaborating with developers across Poland and Canada
Participating in code reviews, discussing technical improvements, and sharing best practices
Using GitHub, Jira, and Jenkins for CI/CD and task management

Our requirements

Strong knowledge of C# and .NET
Good understanding of data structures, system design, and performance optimization
Good knowledge of Python
Solid experience with SQL, including performance tuning and working with large datasets
Knowledge of Git and collaborative development workflows
Proven ability to debug and resolve issues in complex production environments
Experience working in Linux environments

Optional

Healthcare or other regulated-industry experience
Familiarity with medical imaging

What we offer

Top-quality equipment to support your work
Flexible working hours
Remote work option
Exciting and challenging projects with international teams
English lessons with a native speaker
Dedicated training budget for personal and professional growth
Private medical insurance
Multisport card
Air-conditioned workspace

Showers available at the office
Lunches from Kraków’s top restaurants delivered to the office or a refund of the budget allocated for it
Fully stocked kitchen with drinks, fruit, and snacks
No dress code — dress comfortably
Chillout area with bean bags, therapy balls, PlayStation 4, Nintendo Switch 2 + games, stretching area, and pull-up bar
Regular team events
Additional Perks
Indoor bicycle parking

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Your responsibilities

Our requirements

Optional

What we offer

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