Senior/Lead .NET Developer

Salary: 1100–1500 PLN/MD + VAT (B2B)

Work model: Remote

Why choose this offer?

• Work on a modern, enterprise-grade network monitoring platform.

• Collaborate with experienced engineers in an international environment.

• You can expect a flexible work organization.

• The Jit community will bring you a nice time during regular integration meetings.

Project

Join the development of a next-generation network monitoring and management platform designed to provide complete network visibility, real-time performance analysis, automated device configuration, advanced reporting, anomaly detection, and centralized management of distributed IT environments. You will be part of a team building a scalable, secure solution integrated with industry-standard networking protocols using modern .NET technologies.

Responsibilities

• Design, develop, and maintain backend applications using C# and .NET

• Build and enhance REST APIs and backend services

• Participate in the architecture and development of a scalable network monitoring platform

• Collaborate with cross-functional teams to deliver high-quality software

• Write clean, maintainable, and well-tested code

• Troubleshoot, debug, and optimize application performance

• Take part in code reviews and share best development practices

• Contribute to technical design and continuous improvement of the platform

Requirements

• Strong commercial experience with C# and the .NET ecosystem

• Hands-on experience with ASP.NET Core

• Experience designing and implementing REST APIs

• Solid understanding of object-oriented programming (OOP) and software design principles

• Experience working with relational databases and SQL

• Familiarity with Git and modern software development practices

• Strong problem-solving and analytical skills

• Good communication skills and ability to work in an Agile environment

• Very good command of English (B2+)

Nice to have

• AWS

Technologies you'll work with

• C#

• .NET

• ASP.NET Core

• REST APIs

• Git

• SQL

• Agile / Scrum

Client – why choose this particular client from the Jit portfolio?

Join an international technology company developing a modern network monitoring and management platform used to ensure the performance, availability, and security of complex IT infrastructures. You'll contribute to a product that provides real-time network visibility, advanced analytics, automated device management, and intelligent alerting, helping organizations efficiently manage distributed environments. This is an opportunity to work on a scalable, product-driven solution where engineering quality, innovation, and long-term development are key priorities.

About Jit Team

The Human Factor of IT - it’s not just a slogan, it’s a philosophy. The foundation of Jit Team is people, which is why we prioritise you. We employ over 770 experienced experts, to whom we offer developmental projects, a wide range of benefits, and a proprietary professional development programme. Together with clients from around the world, we create innovative IT solutions delivered by highly specialised and efficient teams.

Behind our maxim are also charitable and educational activities. We support schools, universities, and educational institutions by conducting workshops, running educational projects, sponsoring events, and donating learning equipment. We offer internships that help launch careers in IT. We support water rescuers and hospitals by providing the necessary equipment. We also support numerous charitable organisations helping people in need, children, and the elderly. We are a Polish company and we share what we have achieved over more than 15 years of activity. By supporting local initiatives, we contribute to the circulation of good energy.