Gdańsk, Poland Wrocław, Poland Remote

Senior .NET Core Developer



Ciklum is looking for a Senior .NET Core Developer to join our team full-time in Poland.

We are a custom product engineering company that supports both multinational organizations and scaling startups to solve their most complex business challenges. With a global team of over 4,000 highly skilled developers, consultants, analysts and product owners, we engineer technology that redefines industries and shapes the way people live.

About the role

As a Senior .NET Core Developer, become a part of a cross-functional development team engineering experiences of tomorrow. 


  •  Develop robust and scalable software applications using C#.NET and Dot Net Core
  •  Design and implement RESTful and SOAP Web APIs to facilitate seamless communication between various systems
  •  Write efficient SQL queries, stored procedures, and inline queries to interact with databases
  •  Utilize VB.NET as needed, with a good understanding of the language
  •  Implement dependency injection and stay updated with new C# concepts and code styles to enhance code efficiency
  •  Collaborate with cross-functional teams to analyze requirements, design solutions, and deliver high-quality software within specified timelines
  •  Perform code reviews, debugging, and troubleshooting to ensure the quality and reliability of the codebase
  •  Stay updated with the latest technologies, tools, and frameworks relevant to .NET Core development
  •  Document code, processes, and workflows to ensure easy maintenance and knowledge transfer


  •  Proficient in C#.NET, Dot Net Core, and Web API development
  •  Strong knowledge of SQL including stored procedures and inline queries
  •  Familiarity with VB.NET is a plus
  •  Experience with dependency injection and awareness of new C# concepts and code styles
  •  Proven track record as a .NET Core Developer or Application Developer
  •  Familiarity with the ASP.NET framework, SSMS, and design/architectural patterns
  •  Excellent problem-solving skills and attention to detail
  •  Strong communication and collaboration abilities


  •  Bachelor's degree in Computer Science, Engineering, or a related field
  •  3-5 years of relevant experience in software development using .NET technologies
  •  Certifications in .NET development or related areas are advantageous
  •  Experience with cloud platforms (e.g., AWS, Azure) and serverless computing
  •  Understanding of continuous integration and continuous deployment (CI/CD) pipelines
  •  Prior experience in Agile/Scrum development methodologies

What's in it for you

  • Care: your mental and physical health is our priority. We ensure comprehensive company-paid medical insurance, life insurance and Multisport card
  • Tailored education path: boost your skills and knowledge with our regular internal events (meetups, conferences, workshops), Udemy license, language courses and company-paid certifications
  • Growth environment: share your experience and level up your expertise with a community of skilled professionals, locally and globally
  • Flexibility: Own your schedule – you are the one to decide when to start your working day. Just dont miss your regular team stand-up
  • Opportunities: we value our specialists and always find the best options for them. Our Internal Mobility Program helps change a project if needed to help you grow, excel professionally and fulfill your potential
  • Global impact: work on large-scale projects that redefine industries with international and fast-growing clients
  • Welcoming environment: feel empowered with a friendly team, open-door policy, informal atmosphere within the company and regular team-building events

About us:

Join a well-established company and a strong team of professionals. 
Seize the perks of global opportunities, local approach and start-up spirit. 
Boost your skills with modern stacks and industry-leading clients!
Enjoy what you do, do what you enjoy!

Be bold, not bored!

Experiences of tomorrow. Engineered together

Interested already?

We would love to get to know you! Submit your application. Can’t wait to see you at Ciklum.


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