Middle Software Developer

Ciklum is looking for a Middle Software Developer to join our team full-time in Ukraine.

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 Middle Software Developer , to join our Service Infra Team to build and maintain core infrastructure that powers the entire project.

You'll work on shared components, Performance improvements, Developer Experience, public API design, and .NET runtime migrations. Your work will have a broad and lasting impact across teams. As a versatile developer, you may also be invited to contribute to various domain projects and innovative initiatives based on your expertise.

Responsibilities:

• Develop and maintain shared infrastructure libraries
• Design, implement, and document public APIs
• Support .NET runtime migrations
• Write clean, testable C# code using SOLID principles with testing coverage
• Troubleshoot infrastructure, performance, security, and compatibility issues

Requirements:

• Strong experience with .NET, .NET Core (3+ years)
• Experience with large backend systems
• SOLID principles, patterns
• Microservices and a monolith experience
• Multithreading (handling concurrent systems, race conditions)
• Multiprocessing
• Asynchronous programming and Object-Oriented programming
• Cloud experience (Azure, AWS, or GCP)
• Writing tests (unit and integration)
• Database experience (PostgreSQL, DynamoDB, MS SQL)

Desirable:

• System design experience
• Experience with the Security domain
• Python experience
• PowerShell experience
• Degree in Computer Science or related field

What`s in it for you?

• Care: your mental and physical health is our priority. We ensure comprehensive company-paid medical insurance, Mental Health programs, as well as financial and legal consultations
• 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
• Own your schedule – you are the one to decide when to start your working day. Just don’t 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:

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.

As one of Ukraine’s largest IT companies and a top employer recognized by Forbes, we’ve spent over 20 years delivering meaningful tech solutions. We proudly support diverse talent and military veterans, recognizing their unique skills and perspectives they bring to shaping the future.

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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.