Senior .NET Developer

We are looking for a Senior .NET Developer to join our engineering team and help build a cutting-edge solution for our client, a company that designs, builds, and operates advanced registry systems.

You will work on a project leveraging modern architectures and technologies such as modular monolith, C#, .NET 9, CQRS, DDD, Azure, and Docker.

We are looking for a candidate who can join the team as soon as possible.

IN SHORT:

🌎 100% remote or from the office (Wrocław, Bielsko-Biała) - You choose!

💰 120 - 155 PLN/h

☑️ B2B contract

💻 >4 years of commercial programming experience

Your Daily Missions

• Collaborating with interdisciplinary teams in creating web applications in a modular monolith architecture.

• Designing, developing, and maintaining scalable and maintainable backend solutions.

• Writing clear, maintainable, and testable code with an emphasis on good testing practices.

• Participating in code reviews and contributing to knowledge-sharing within the team.

• Applying coding standards, design patterns, and best practices to ensure high-quality solutions.

• Engaging in architectural discussions and proposing improvements to enhance system performance and scalability.

• Working in an Agile SCRUM environment, contributing to sprint planning, daily stand-ups, and retrospectives.

• Supporting and mentoring other developers when needed.

The Essentials We're Seeking

• Over 4 years of commercial programming experience as a .NET Developer.

• Strong understanding of software architecture principles and backend design patterns (e.g., dependency injection, repository, mediator, factory).

• Practical knowledge of cloud environments, ideally Azure.

• Fluency in English and Polish (minimum B2+) – a must.

• Hands-on experience with CQRS and Domain-Driven Design (DDD), including aggregates, entities, value objects, and bounded contexts.

• Proven ability to build systems with clear separation of concerns, scalability, and maintainability.

• Solid knowledge of clean architecture principles.

• Experience with PostgreSQL and modern ORM frameworks (e.g. Entity Framework or equivalent).

• Exposure to CosmosDB or similar NoSQL/document databases.

• Experience with RESTful APIs.

• Familiarity with Docker for local development and deployments.

Reasons Why You Would Enjoy Working With Us

• We work in the latest technologies and with international clients, and our projects are polished from < to /> - learn about some of the projects we have completed.

• We organize TechTalks, meet-ups and create guilds where we exchange knowledge - you can learn a lot from your teammates.

• We have a close-knit team and we make sure to have regular integrations - we often go out to celebrate together.

• You can work remotely or choose to work from our offices in Wroclaw or Bielsko-Biala. However, we count on your openness to occasionally visit the office for team meetings or client visits, or possible occasional trips to the client's headquarters.

• You can adjust your working hours to suit your needs, starting your day between 7:00 and 10:00 am.

• You can work with great specialists in their fields who also have a sense of humor and other after-hours hobbies. It is the people who create the unique atmosphere and relaxed atmosphere at CSHARK.

• We have a flat structure - we are not a corporation and don't want to be one 🙃.

• We offer bonuses for employee referrals (from 3000 PLN to 7000 PLN).

• We organize remote English classes and provide access to the company library. You can also become an author/author of articles published on our technical blog - https://cshark.com/blog/.