Senior .NET Software Engineer

Ciklum is looking for a Senior .NET 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 .NET Software Engineer, become a part of a cross-functional development team engineering experiences of tomorrow. We are seeking a highly skilled Kubernetes Migration Engineer to support the transition from Marathon (Mesos), Legacy EC2s and Legacy EKS clusters to our centralized OneEKS platform. The ideal candidate has hands-on experience in container orchestration, migration strategy, and cloud-native infrastructure, with deep knowledge of AWS EKS and CI/CD Practices.

With almost 100 million active users across 25 countries, they're a global food tech company. As a recently formed team, they have many opportunities and ideas for sharing value back to the customers within their continuously expanding platform. They're looking for talented and trusted engineers to help them impress their customers.

Responsibilities:

• Work on the the migration of workloads from Marathon (Mesos), legacy EC2 instances, and EKS clusters to the centralized OneEKS platform
• Design and implement scalable, cloud-native infrastructure using AWS EKS, Kubernetes, Helm, and Terraform
• Develop migration strategies that minimize downtime and ensure application reliability throughout the migration process
• Collaborate closely with other teams to align infrastructure changes with business needs

Requirements:

• Software Development experience (C# .NET, Java preferably). Need to be able to make adjustments in the code if needed. (e.g., adjust a messaging library not to manage the infrastructure)
• Strong experience with AWS EKS, Kubernetes, Helm, and Terraform
• Understanding of networking, service meshes (Istio), and ingress/egress patterns
• Proficient in CI/CD tools (e.g., ArgoCD, GitHub Actions etc.)
• Experience with observability tools (e.g., Prometheus, Grafana, Datadog)
• Scripting knowledge (Python, Bash, or Go)
• Troubleshoot and optimize application performance during and post-migration
• Document processes, patterns, and best practices to enable future migrations
• Collaborate with DevOps, Platform, and Application teams to streamline workflows

Desirable:

• Familiarity with Marathon (Mesos) architecture and workload types
• Proven experience with Kubernetes workload migration

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 radical flexibility – work remotely or from an office, your choice
• Care: We've got you covered with company-paid medical insurance, mental health support, and financial & legal consultations

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.