Backend .Net Developer
TeamQuest
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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 |
| Source |
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