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Offer summary
(Summary generated by AI based on the full job description)
The project focuses on building high-performance financial systems in Global Markets while migrating the backend to a event-driven architecture. Core stack includes C# .NET, ASP.NET Web API, Rebus, MS SQL and Dapper, with CI/CD tools: TeamCity, Jenkins, Ansible. Responsibilities cover designing and maintaining scalable backend services, accelerating the migration to event-driven architecture, optimizing asynchronous messaging, developing and optimizing MS SQL queries and schemas, and improving CI/CD pipelines. Requires 4+ years experience, banking domain experience and fluency in English.
from: 22 September 2026
to: 22 October 2026
salary not specifiedB2B contract (full-time)
salary not specifiedcontract of employment
Offer parameters
level:mid • senior
working mode:hybrid
location:Warszawa, Masovian
Warszawa, Masovian
Requirements
Expected technologies
C#
.NET
Microsoft SQL Server
Optional technologies
HTML
JavaScript
TypeScript
React
Redux
Jenkins
TeamCity
Ansible
Our requirements
- 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
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
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, ASP.NET 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 organize our work
This is how we work
at the client's siteagile
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
C# Developer
I apply to:
NATEK POLAND
Warszawa, Masovian
Need more information?
- Make sure the body of the offer doesn’t already include what you’re looking for.
- Ask a question if you need more information you’re interested in.
- We’ll forward your question to the employer and aim to provide a response within 3 business days.