---
title: .NET Backend Developer
company: speedapp
category: Programista
subcategory: .NET
experience_level: Senior
work_mode: remote
location: Warszawa
employment_type: B2B
salary_min: 23500
salary_max: 30200
salary_currency: PLN
salary_period: month
technologies: [.NET, Azure, CosmosDB]
posted: 2026-06-19
valid_through: 2026-07-20
url: "https://solid.jobs/offer/34003/speedapp-dotnet-backend-developer"
---

# .NET Backend Developer — speedapp

## Kluczowe informacje

- **Firma:** speedapp
- **Lokalizacja:** Centrum, Warszawa
- **Tryb pracy:** 100% zdalnie
- **Wynagrodzenie:** 23.5k–30.2k PLN netto/m (B2B)
- **Forma zatrudnienia:** B2B
- **Wymiar etatu:** 100%
- **Godziny pracy:** Elastyczne godziny pracy
- **Poziom doświadczenia:** Senior
- **Minimalne doświadczenie:** 5 mies.
- **Kategoria:** Programista
- **Specjalizacja:** .NET
- **Data publikacji:** 2026-06-19
- **Aktywne do:** 2026-07-20

## Technologie i umiejętności

**Wymagane:**

- .NET — zaawansowany
- Azure — zaawansowany
- CosmosDB — zaawansowany

**Mile widziane:**

- JavaScript

## Języki

- Polski — ekspert
- Angielski — zaawansowany

## Opis stanowiska

Design, develop, and maintain high-performance back-end services using .NET and C#.    Work extensively with Azure cloud services and CosmosDB to build scalable and resilient solutions.    Collaborate with front-end developers, product owners, and other team members to integrate back-end services.    Participate in code reviews, architectural discussions, sprint planning, and other Agile ceremonies.    Use modern development tools and practices to improve productivity, code quality, and maintainability.    Explore and apply AI-assisted tools where appropriate to support development, documentation, troubleshooting, and workflow efficiency.    Contribute to improving development processes, engineering practices, and team knowledge sharing.    Be a proactive problem-solver and continuous learner, staying current with relevant technologies and industry trends.

## Kogo szukamy

Application Development Experience: 5+ years of professional experience in .NET development.    Cloud Development Expertise: Proven experience with C#, Azure services, and CosmosDB.    Scripting / Front-End Knowledge: Experience with TypeScript preferred, or JavaScript.    AI Tool Familiarity: Interest in or hands-on experience using AI tools to support software development, productivity, documentation, research, or troubleshooting.    Educational Background: Bachelor’s degree in Computer Science or a related field.    Flexibility: Ability to align somewhat with US-based team working hours.    Communication: English language proficiency.          Tech Stack You’ll Be Working With     Cloud: Azure, CosmosDB    Back-End: .NET, C#    Scripting / Tooling: TypeScript preferred, JavaScript acceptable    Productivity / AI Tools: Familiarity with AI-assisted development or productivity tools is a plus     NICE TO HAVE       Domain Knowledge: Background in Electrical Engineering or a related technical field.    Background or interest in analog and mixed-signal hardware design.    Knowledge of hardware or system simulation concepts.    CMS Knowledge: Familiarity with Drupal.    Test Automation Exposure: Familiarity with tools like Playwright or Selenium.    Quality Mindset: Prior QA experience or understanding of QA methodologies is welcome.

## Benefity

**Zdrowie:**

- Pakiet medyczny
- Pakiet sportowy

## Lokalizacje

- Centrum, Warszawa, Polska

## O firmie — speedapp

**Wielkość firmy:** 200-300

speedapp to innowacyjna, rozwijająca się organizacja ekspertów w dziedzinie IT i rynku pracy. Specjalizujemy się w realizacji: outsourcingu IT, rekrutacji IT oraz realizacji projektów IT.  Działamy szybko i odważnie. Jesteśmy rzetelnym partnerem dla naszych klientów.

## Aplikuj

Aplikuj na: https://solid.jobs/offer/34003/speedapp-dotnet-backend-developer

---

*Źródło: https://solid.jobs/offer/34003/speedapp-dotnet-backend-developer · Wygenerowano: 2026-06-19T13:38:46Z*