C# Developer w Warszawa, Polska

Expected, C#, .NET, Microsoft SQL Server

Optional, HTML, JavaScript, TypeScript, React, Redux, Jenkins, TeamCity, Ansible

About the project, Are you looking to build high-performance financial systems in a truly global environment? Join our team, a vital part of Global Markets IT., Our client is currently well advanced in migrating their backend ecosystem to a modern, event-driven architecture. To help them accelerate this journey, we are looking for a skilled C# Developer with a solid background in banking industry., , Tech Stack, Backend: C# .NET, Windows Services, https://jobeax.com/link/GrYTXLZMpxEMJknV Web API, SignalR, Architecture & Data: Rebus (asynchronous messaging), MS SQL, Dapper (ORM), DevOps & Tools: GIT (Bitbucket), TeamCity, Jenkins, Ansible, , Meetings in Warsaw or Krakow - frequency to be agreed

This is how we work, at the client's site, agile

Your responsibilities, Design, build, and maintain robust, scalable backend components and services using C# .NET, Actively contribute to the ongoing migration toward event-driven architecture and optimize asynchronous messaging, Write, optimize, and maintain complex database queries and structures in MS SQL, Support and improve our CI/CD pipelines, ensuring code quality and smooth deployment processes in line with DevOps best practices

4+ years of similar experience, Deep knowledge of C# .NET, its ecosystem, and advanced Object-Oriented Programming (OOP) principles and patterns, Strong background in Service-Oriented Architectures (SOA) and hands-on MS SQL experience, Demonstrable experience working with CI/CD and automation tools (e.g., Jenkins, TeamCity, Ansible), Fluency in English, Proven experience within the banking industry

Optional, Practical experience utilizing LLMs within software development and implementing Agentic AI workflows in an enterprise setting, Experience within the functional area – Global Markets, Web development with HTML, JavaScript / TypeScript, React, Redux

What we offer, Internal Mobility Program – enjoy many opportunities for career growth, job rotations, diversity of projects & technologies, Referral Program – enjoy cooperation with your colleagues and get a bonus!, 5/10 Years NATEK Club – we offer long-term cooperation and celebrate each fifth-year cooperation anniversary with gifts, NATEK CSR Events & team buildings – enjoy our values: accountability, partnership and expertise and #workITwithus, Education – benefit from our know-how, learning courses and certificates and IT events – be part of the community of leaders of the industry and take part as a speaker or a visitor, Multisport, Technical and Personal training, Language courses

Benefits, sharing the costs of sports activities, private medical care, life insurance, remote work opportunities, flexible working time, integration events, employee referral program

NATEK POLAND, Established in Brno, Czech Republic in 2004, we have been working with world leaders in the IT industry from day one. We are an experienced company with in-depth knowledge of building high-performing IT project teams., , Our mission is to deliver high-quality IT outsourcing solutions within CEE to help our clients make improvements in their performance while providing our employees with a work environment based on partnership., , Our teams’ experience in various industries (FMCG, banking, automotive, telecommunication) allows us to properly anticipate clients’ needs. Thanks to our expertise we develop customized solutions. Our recruitment department can match IT experts to the rights projects to provide a, win-win situation.

This is how we work,