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Offer summary
(Summary generated by AI based on the full job description)
The project focuses on developing .NET solutions with backend and full-stack work. Required skills include basic C#, .NET Core / .NET 5+, knowledge of ASP.NET Core, working with RESTful APIs and Entity Framework Core. Expected abilities cover relational databases, Git, basic unit testing and DI. Responsibilities include implementing features, designing endpoints, debugging, participating in code reviews and proposing technical solutions. Offered mentoring, ability to define career path, remote work and flexible hours. The project actively supports open source (GitHub, YouTube).
from: 2 October 2026
to: 1 November 2026
salary not specifiedB2B contract (full-time)
Requirements
Expected technologies
C#
.NET
.NET Core
ASP.NET Core (REST Web API / Minimal APIs)
Entity Framework Core
PostgreSQL lub MS SQL Server (T-SQL)
xUnit lub NUnit
Moq (lub NSubstitute)
FluentAssertions
Docker
GitHub
Postman (lub Swagger / OpenAPI)
LINQ
JSON / JWT
Optional technologies
Microsoft Azure
AWS
TypeScript
React (lub Angular / Vue.js)
Blazor
RabbitMQ (lub Apache Kafka / Azure Service Bus)
Redis
MongoDB (lub Azure Cosmos DB)
Dapper
MediatR (wzorce CQRS)
MassTransit
GitHub Actions
gRPC
GraphQL
Serilog
OpenTelemetry
Polly
Kubernetes
.NET Aspire
Operating system
Windows
Our requirements
- Basic knowledge of C# language, including object-oriented programming concepts (classes, inheritance, interfaces, encapsulation, polymorphism).
- Familiarity with .NET platform and .NET Core / .NET 5+ runtime, including creating and running console and web applications.
- Understanding of ASP.NET Core fundamentals: request/response pipeline, controllers, routing, middleware, and basic Razor Pages or MVC patterns.
- Experience with working on RESTful APIs: designing endpoints, handling HTTP verbs, status codes, and JSON serialization/deserialization.
- Knowledge of Entity Framework Core for data access: basic CRUD operations, DbContext, migrations, and simple LINQ queries.
- Familiarity with relational databases (e.g., SQL Server, PostgreSQL) and ability to write basic SQL queries and understand database schemas.
- Exposure to source control systems, primarily Git: committing, branching, merging, pull/merge requests, and resolving simple conflicts.
- Basic unit testing skills and familiarity with testing frameworks (e.g., xUnit, MSTest, NUnit) and writing simple test cases.
- Understanding of dependency injection principles and ability to apply DI in .NET projects.
- Ability to read, understand, and follow technical documentation and requirements, and to debug basic application issues using logs and debugging tools.
- Knowledge of common development tools and IDEs, especially Visual Studio or Visual Studio Code, including project configuration and debugging features.
- Familiarity with NuGet package management and using external libraries safely and appropriately.
- Basic understanding of web technologies: HTTP, HTML, CSS, JavaScript fundamentals and how they interact with .NET backends.
- Awareness of secure coding basics: input validation, handling sensitive data, and avoiding common vulnerabilities (e.g., injection, improper authentication).
- Good communication skills, ability to work in a team, willingness to learn and accept feedback, and time management for completing assigned tasks.
Your responsibilities
We are looking for .NET Developer with a minimum of 1 year of experience.
We're looking for talented professionals like you to join our vibrant team.
In this role, you'll become a valued part of our community, bringing your unique expertise to the table. We believe in collaboration and encourage you to actively contribute your skills.
Your voice matters here - propose innovative technical solutions and take ownership of your projects.
As a member of our team, you won't just be a cog in the wheel. We're committed to supporting your growth journey.
Join us if your expectations and experience match our requirements
This is how we organize our work
This is how we work
in houseat the client's siteyou focus on a single project at a timeyou develop several projects simultaneouslyyou can change the projectyou focus on product developmentyou focus on code maintenanceagilescrum
Team members
backend developerfullstack developer
This is how we work on a project
- Clean Code
- architect / technical leader support
We create open source
We're dedicated to open-source .NET, steadily building our solutions and libraries.
- Watch it on YouTube -> https://www.youtube.com/channel/UCVfa7ApE-qJvFMJrvaNZn2A/
- or visit GitHub -> https://github.com/Prognetics
What we offer
- Ability to define your development path
- Mentoring (with the use of practical tasks)
- An informal but productive work environment
Development opportunities we offer
- mentoring
- substantive support from technological leaders
- technical knowledge exchange within the company
- time for development of your ideas
Benefits
- remote work opportunities
- flexible working time
- integration events
- opportunity to obtain permits and licenses
Recruitment stages
- 1.About 30 minute HR interview
- 2.About 1h technical interview
- 3.Call with a customer (optional)
PROGNETICS SPÓŁKA Z OGRANICZONĄ ODPOWIEDZIALNOŚCIĄ
🦉 Join the #PROperTeam at Prognetics! 🚀
Are you passionate about .NET, modern JS (React/Angular), Azure, and Microsoft technologies? At Prognetics, we live and breathe reliable software solutions while sharing our collective tech expertise.
We're not just coders; we use our software development expertise to craft success stories for enterprise and corporate clients. Our approach? Pragmatic software development processes and a strong emphasis on teamwork.
At Prognetics, it's all about our collective growth. We're here to guide your development journey and support your certification aspirations. Be part of the #PROteam!
This is how we work
Junior .NET Developer
I apply to:
PROGNETICS SPÓŁKA Z OGRANICZONĄ ODPOWIEDZIALNOŚCIĄ
Warszawa, Wola
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