Senior .NET Engineer

Ciklum is looking for a Senior .NET Engineer 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 Engineer, become a part of a cross-functional development team engineering experiences of tomorrow. Client for this project is the largest professional services network in the world by revenue and number of professionals. Client provides audit, tax, consulting, enterprise risk and financial advisory services worldwide.

Responsibilities:

• Starting projects from scratch
• Back-end development of new functionality
• Participating in code and architectural reviews, documenting architecture
• Communicating with stakeholders: PMs, developers, architects, QA engineers and other colleagues
• Show exceptional ownership in solution development
• Support cross-stack integration points
• Drive processes and process improvements
• Delivering the product roadmap and planning for the future
• Handle complex problems that might arise during solution development and provide field support with creative and rapid solutions
• Ensure that the highest coding standards are met and write highly testable, automatable and performant code over the whole SDLC

Requirements:

• More than 7 years of experience in commercial software development
• Excellent knowledge of computer science and computing theory:
  • OOP, DDD, SOLID, TDD, BDD
  • Database theory (RDBMS, NoSQL)
  • Algorithms and data structures
  • Design, architectural and enterprise patterns
• Understanding of network protocols and conventions (e.g. HTTP, REST), authentication and  authorization flows and practices
• Excellent knowledge and experience with C# and .NET
• Commercial experience with:
  • .NET Framework, .NET Core, ASP.NET (Core, MVC, WebAPI)
  • ORM (e.g. Entity Framework, Dapper)
  • RDBMS (especially SQL Server)
  • Messaging systems (e.g. RabbitMQ, ServiceBus)
  • Experience with REST API development for web or mobile application
  • Cloud providers (e.g. Azure)
  • Testing frameworks (e.g. NUnit, XUnit, MSTest)
  • Continuous Integration (e.g. TeamCity, GitLab, Jenkins)
  • Web Servers
  • Version control systems (e.g. GIT)
  • Containerization and orchestration (Docker, Kubernetes)
• Upper-intermediate English or above

Desirable:

• Experience with NoSQL (e.g. Mongodb, DynamoDB)
• Experience with Search Engines (e.g. ElasticSearch, Azure Search)
• Experience with integration with 3rd party solutions
• Knowledge of key-value storages (e.g. Redis, Memcached)

What’s in it for you?

• Strong community: Work alongside top professionals in a friendly, open-door environment
• Growth focus: Take on large-scale projects with a global impact and expand your expertise
• Tailored learning: Boost your skills with internal events (meetups, conferences, workshops), Udemy access, language courses, and company-paid certifications
• Endless opportunities: Explore diverse domains through internal mobility, finding the best fit to gain hands-on experience with cutting-edge technologies
• Flexibility: Enjoy flexibility – full remote working possibilities
• Care: We've got you covered with company-paid premium medical package through Luxmed
• Benefits: Access the MyBenefit cafeteria platform, allowing you to choose perks that best suit your lifestyle and needs

About us:

At Ciklum, we are always exploring innovations, empowering each other to achieve more, and engineering solutions that matter. With us, you’ll work with cutting-edge technologies, contribute to impactful projects, and be part of a One Team culture that values collaboration and progress.

With delivery centers in Wrocław and Gdańsk, our 300+ professionals in Poland drive forward-thinking solutions for global clients. Join a community where collaboration sparks innovation—and your impact reaches millions.

Explore, empower, engineer with Ciklum!

Interested already? We would love to get to know you! Submit your application. We can’t wait to see you at Ciklum.

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