Ciklum is looking for a Senior C 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 Senior C/C++ Developer, become a part of a cross-functional development team engineering experiences of tomorrow. The client is disrupting the traditional firewall and changing how organizations protect their datacenters and clouds. Our team has some of the most talented experts in the field. We’re always looking for new people to challenge us, inspire us, and make us better. We solve a few of the most complex technological problems out there and build the market’s most comprehensive Data Centers cybersecurity solution.

Responsibilities:

• Design and research high-performance lightweight network security monitoring and deception solution
• Develop client’s back-end and agents from the ground up, design distributed communication applications with an extremely low footprint
• Work with a myriad of operating systems
• Tackle new weave performance and scale issues, running on production servers in a state of the art data-centers, including cutting-edge technologies such as containerized and serverless environments
• Be a part of a professional team working on varied projects in a dynamic working environment

Requirements:

• At least 4 years of experience with C or C++
• Deep knowledge of the networking stack and socket programming
• Experience working with multithreaded applications
• Experience working with Linux/Unix-like systems
• Network security – FW, IPS, Attacks (DDoS, Reply, MITM)

Desirable:

• Python knowledge
• Previous experience working on security-based projects
• Background in reverse engineering (e.g. work with IDA, WinDBG)
• Sc in computer science or related degree

What`s in it for you?

• A unique working environment where you communicate and work directly with the client
• Become a part of the most talented and experienced cybersecurity and data center experts in the field
• Great opportunity to develop yourself professionally and personally by joining a hell-of-a-ride, from a small startup to a market, Billion-Dollar, leader
• Competitive salary

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.