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TeamQuest

Backend .Net Developer

TeamQuest Show all offers
Bialystok
Gdansk
Katowice
Krakow
+13
Expires Oct 18, 2026
3 days ago

In short

Backend .

Net Developer role requiring 3-4 years of experience in C#/.

NET, SOAP/XML & REST/JSON integrations, message queues, Docker, and CI/CD. Offers remote work, professional development, and project influence.

AI-written summary based on the listing content.

What you will do

Our client develops IT solutions, mainly for prestigious clients in the financial and automotive sectors.

Backend .

Net Developer

We offer:

  • Attractive salary
  • Possibility of fully remote work
  • Real opportunity for professional development
  • Possibility to genuinely influence the shape of projects

Responsibilities:

  • Designing and implementing integrations with external systems (SOAP/XML and REST/JSON services), including data model mapping and partner error handling.
  • Maintaining and developing an asynchronous data exchange mechanism (message queues, callbacks, statuses, request idempotency).
  • Generating and updating API clients based on OpenAPI contracts provided by the client; responding to contract version changes.
  • Building and maintaining mocks of external systems for test environments.
  • Implementing business process logic in a BPMN engine (handlers in C#, process variables, signals) and decision rule models.
  • Configuring environments (installation parameters, Docker, CI/CD pipeline), participating in preparing releases and hotfixes.
  • Analyzing defects from business tests and production based on logs, quick fixes, collaborating with client analysts and testers.
  • Documenting solutions and transferring knowledge within the team.

Requirements:

  • Minimum 3-4 years of experience in a similar position
  • Very good knowledge of C# and .

NET (ASP.

NET Core, .

NET 8 or newer)

  • Practical experience with SOAP / XML integrations, REST/OpenAI integrations
  • Asynchronous architecture - message queues (RabbitMQ or equivalent), request-callback pattern, idempotency, persistence of exchange state
  • Good knowledge of databases
  • Mapping of domain models
  • Docker and CI/CD
  • Git in gitflow model
  • English language proficiency for reading technical documentation
  • Communicative, open to collaboration with client-side personnel
  • Ability to work independently

Additional advantages:

  • Experience in the financial/banking industry or in projects for these industries
Published 2026-09-18
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