Senior. NET Developer

Net

Senior. NET Developer

Net
Full-time
B2B, Permanent
Senior
Hybrid

Tech stack

    English

    C1

    ASP.NET Core

    advanced

    ASP.NET Web API

    advanced

    .Net Framework

    advanced

    SQL

    advanced

    REST API

    advanced

    Kubernetes

    nice to have

    MassTransit

    nice to have

    Elasticsearch

    nice to have

    NServiceBus

    nice to have

Job description

Your responsibilities:

  • Implement backend solutions using .NET Core / .NET Framework / MS SQL.

  • Ensure high code quality by creating automated and unit tests.

  • Lead project, development, and deployment activities.


We are looking for you, if you have:

  • Minimum 5 years of experience in backend development: C#, SQL, REST API.

  • Advanced knowledge of .NET Framework, .NET Core, and ASP.NET WebAPI.

  • Strong understanding of architectural patterns for building highly efficient and scalable solutions.

  • Experience with Jira, Git, and Confluence.

  • Ability to write automated and unit tests.

  • English proficiency sufficient for reading, correspondence, and technical discussions.


Nice to Have:

  • Experience with MassTransit, NServiceBus, Elasticsearch, Kubernetes (k8s).


We offer:

  • Participation in interesting and challenging projects

  • Flexible working hours

  • A great, non-corporate atmosphere

  • Stable employment conditions (contract of employment or B2B contract)

  • Opportunities for development and promotion

  • Attractive package of benefits

  • Remote work


We reserve the right to contact the selected candidates.

Published: 12.09.2025

Meet the company

Transition Technologies MS

We are a rapidly growing IT company with global reach. We deal with IT outsourcing and implementation projects in flexible cooperation models, providing access to competence and experts in technologies from mainstream to cloud. TTMS' greatest strength is its skilled professionals, so people are at the heart of our organisational culture.

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Senior. NET Developer

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Senior. NET Developer

-, Warszawa

Transition Technologies MS