C# .NET Developer

Quick Facts

• Role: C# .NET Developer (Software Developer)
• Team: Cash Analytics
• Focus: Pricing and risk analytics platforms for cash products
• Work mode: Kraków / Hybrid / Remote from Poland

Description

Develop and support core pricing and risk analytics systems, delivering scalable, reliable solutions for batch and real-time processing. You’ll build backend services, APIs, and integrations, optimize performance for data-intensive workloads, and troubleshoot complex production issues. You will collaborate with front office, risk, and engineering teams to translate business needs into technical solutions.

Responsibilities

• Maintain existing C#/.NET applications and develop 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)
• Translate business requirements into technical solutions with front office and risk teams
• Troubleshoot and resolve complex production issues
• Improve scalability, performance, and reliability
• Modernize and design solutions for legacy platforms
• Write clean, maintainable, efficient code and participate in code reviews
• Use GitHub, Jira, and Jenkins for CI/CD and task management

Requirements

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

Benefits

• Flexible working hours and remote work option
• Top-quality equipment
• English lessons with a native speaker and a dedicated training budget
• Private medical insurance and Multisport card
• Air-conditioned workspace, showers, and catered lunches (or refund)
• Fully stocked kitchen with drinks, fruit, and snacks
• No dress code; chillout area and team events
• Additional lifestyle perks like indoor bicycle parking