Senior .Net Developer

Our Client engineers technologies that enable the world of tomorrow to do more with less. They meet the growing need for infrastructure, food supply, energy efficiency and climate-friendly solutions. Their products and services are used in areas such as refrigeration, air conditioning, heating, motor control and mobile machinery. They are also active in the field of renewable energy as well as district heating infrastructure for cities and urban communities. Their innovative engineering dates back to 1933 and today our Client is a world-leader, employing more than 27,000 employees and serving customers in more than 100 countries. They are still privately held by the founding family.

Jit Team employs over 770 experienced experts, offering developmental projects, a wide range of benefits, and a proprietary professional development programme. They create innovative IT solutions delivered by highly specialised and efficient teams. They support schools, universities, educational institutions, charitable organisations, and local initiatives in Poland.

• Strong experience with C# / .NET – minimum 5 years of commercial experience
• Strong Python skills focused on data engineering, analytics, ETL, and data processing
• Experience with Apache Iceberg and modern data platform ecosystems
• Hands-on experience with Kubernetes and basic Azure cloud knowledge
• Strong practical experience with PostgreSQL
• Hands-on experience with Kafka
• Experience with event-driven architecture and asynchronous messaging systems (Kafka / NATS during transition period)
• Experience with GreptimeDB or other time-series databases
• React / TypeScript skills
• Experience with ReBAC / SpiceDB or advanced authorization systems
• English proficiency at a minimum B2 level
• Ability to work independently and as part of a cross-functional engineering team

Nice to have:

• Experience with migration and platform transformation projects
• Experience designing and developing cloud-native architectures
• Distributed systems knowledge

• Develop and improve a software tool which helps provide customers worldwide with tailor-made heating and cooling solutions
• Create more sustainable, cost-efficient and environment friendly heating and cooling solutions
• Work as part of a team developing modern software solutions for the energy and smart building industry, focused on intelligent heating and hot water management systems
• Build modern data-intensive and cloud-native software platforms focused on scalable analytics, distributed event processing, and real-time operational insights
• Collaborate closely with backend, frontend, and platform engineers to design and develop event-driven services, cloud infrastructure, and user-facing applications