Senior .Net Developer (English+German)

145 - 160 PLNNet per hour - B2B

Senior .Net Developer (English+German)

Net

Puławska 2b, Warszawa

Square One Resources

145 - 160 PLN
Net per hour - B2B
Full-time
B2B
Senior
Remote

Tech stack

    English

    C1

    German

    C1

    .Net

    master

    Entity Framework

    master

    REST API

    master

    Powershell

    master

    Azure DevOps

    master

    SQL

    master

    ASP.NET Core

    nice to have

    C#

    nice to have

Job description

Position: Senior .NET Developer (English & German required)

Start date: September 1, 2025

Duration: Until December 31, 2025 (extension possible)

Location: Remote

Workload: Full-time (100%)

Seniority: Senior


About the role

We are looking for an experienced Senior Backend Developer with strong expertise in .NET technologies and fluent communication skills in both English and German. You will join a cross-functional product team, contributing directly to ongoing client projects. This role requires advanced technical knowledge, strong collaboration skills, and the ability to communicate effectively across distributed teams.


Key Responsibilities

  • Develop and maintain backend services with .NET / .NET Core and C#, focusing on performance, scalability, and reliability.

  • Design, build, and extend RESTful APIs and service components in collaboration with client teams.

  • Contribute to architectural decisions, promote best practices, and ensure clean, testable code.

  • Participate in code reviews and provide constructive feedback to maintain high engineering standards.

  • Troubleshoot performance issues and integrate backend services with external systems.

  • Create and maintain clear technical documentation.

  • Communicate efficiently with stakeholders in both English and German.


Must-have Skills

  • .NET / .NET Core, C#

  • Entity Framework

  • REST APIs

  • PowerShell (automation, scripting)

  • SQL

  • CI/CD experience with Azure DevOps

  • Fluent English and German


Nice-to-have

  • Microservices architecture

  • RabbitMQ or Azure Service Bus

  • Elasticsearch

  • Frontend: AngularJS or Angular 14

  • Azure Cloud, Docker


Soft Skills

  • Proactive and independent working style

  • Strong team player in distributed environments

  • Excellent communication skills in two languages (EN/DE)

Published: 22.08.2025

Meet the company

Square One Resources

Nasze motto to #OneSquareOne - jeden zespół, wiele talentów. Specjalizujemy się w rekrutacji, naszą misją jest połączenie biznesu z najlepszymi kandydatami i kandydatkami z rynku.

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