Backend .Net Developer

ipracujzdalnie.pl

Kraków

Remote

PLN 170,000 - 250,000

Full time

2 days ago

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Benefits offered by this job

Attractive salary

Fully remote

Career development

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Job summary

TeamQuest is seeking a Backend .NET Developer to design and implement integrations, with strong C#/.NET skills and experience in asynchronous, message-based architectures. You will work with SOAP/XML and REST/OpenAI integrations, Docker and CI/CD, and collaborate with client teams to deliver robust, scalable solutions.

Ideal candidates have 3-4 years in similar roles, are comfortable reading technical English, and value independent, proactive collaboration.

Qualifications

3-4 years of experience in a similar role
Experience with AI tools in development
Strong knowledge of C# and ASP.NET Core/.NET 8+
Practical experience with SOAP/XML and REST integrations
Experience with asynchronous messaging (RabbitMQ or similar) and idempotent architectures
Database knowledge and data mapping skills
Docker and CI/CD experience
Git in gitflow
Good English for reading technical docs
Proactive, independent and client-facing communication

Responsibilities

Design and implement integrations with external systems (SOAP/XML, REST/JSON)
Maintain asynchronous data exchange mechanisms and idempotent messaging
Generate API clients from OpenAPI contracts and respond to version changes
Build and maintain mocks for test environments
Implement business logic in a BPMN engine and rules models
Configure environments (Docker, CI/CD) and assist in releases
Analyze defects, provide quick fixes, collaborate with analysts and testers
Document solutions and share knowledge within the team

Skills

.NET

Async architecture

SOAP/XML integrations

REST/OpenAI integrations

Docker

CI/CD

RabbitMQ

Git (gitflow)

English reading

Tools

OpenAPI

SQL/Databases

Job description

TeamQuest is a rapidly growing Polish company engaged in the comprehensive HR consulting services, in particular in the recruitment of IT professionals.

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

Backend .Net Developer

location: Wrocław, Białystok, Kraków, Warszawa, Łódź, Katowice, Poznań, Rzeszów, Lublin, Gdańsk

Tasks

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.

We Expect You Have

Minimum 3-4 years of experience in a similar position
Experience working with AI tools in development
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