Senior C/ C++ Software Engineer

Ciklum is looking for a Senior C/ C++ Software Engineer 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++ Software Engineer, become a part of a cross-functional development team engineering experiences of tomorrow.Responsibilities:Design and research high-performance lightweight network security monitoring and deception solution.Develop Guardiсore 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++Experience working with multithreaded applicationsExperience working with Linux/Unix-like systemsDeep knowledge of the networking stack and socket programming - a big advantageNetwork security – FW, IPS, Attacks (DDoS, Reply, MITM) - a big advantageDesirable:Python knowledgePrevious experience working on security-based projectsBackground in reverse engineering (e.g. work with IDA, WinDBG)Sc in computer science or related degreeWhat`s in it for you?Strong community: Work alongside top professionals in a friendly, open-door environmentGrowth focus: Take on large-scale projects with a global impact and expand your expertiseTailored learning: Boost your skills with internal events (meetups, conferences, workshops), Udemy access, language courses, and company-paid certificationsEndless opportunities: Explore diverse domains through internal mobility, finding the best fit to gain hands-on experience with cutting-edge technologiesFlexibility: Enjoy radical flexibility – work remotely or from an office, your choiceCare: We’ve got you covered with company-paid medical insurance, mental health support, and financial & legal consultationsAbout 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.Want to learn more about us? Follow us on Instagram, Facebook, LinkedIn.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.