Senior Software Engineer | Kubernetes Automation

About the Position

We are seeking a Senior Software Engineer specializing in Kubernetes Automation to join our team. You will work on optimizing Kubernetes infrastructure autonomously at scale.

This is a location-specific opportunity. We are currently accepting applications from candidates residing in the following European countries: Bulgaria, Croatia, Estonia, Greece, Hungary, Latvia, Lithuania, Poland, Romania, Slovakia, Slovenia, and Ukraine.

Responsibilities

• Design and build distributed systems that operate Kubernetes infrastructure autonomously at scale.
• Write production Go services that interact with AWS, GCP, and Azure APIs for real-time cloud resource management.
• Own features end-to-end: from design through implementation, testing, and production rollout (most projects ship in 1-4 weeks).
• Debug complex production issues across cloud providers, Kubernetes clusters, and distributed services.
• Collaborate with product and other engineering teams to solve problems that don’t have textbook solutions.
• Work with time-series data, cloud provider APIs, and Kubernetes control plane internals.
• Contribute to product direction and backlog – shape what gets built next, not just how it’s built.
• Participate in on-call rotation for teams that require it.

Requirements

• Strong software engineering fundamentals: you design clean abstractions, write maintainable code, and can justify your architecture choices – not just make something work.
• Production experience with Go is strongly preferred; candidates without Go should demonstrate strong systems programming skills in a comparable language.
• Understanding of Kubernetes internals – autoscaling and networking.
• You’ve personally driven a complex project end-to-end.
• Experience with AI coding agents and agentic development workflows.
• You’ve used observability tooling in production.
• CI/CD and DevOps practices experience.
• Strong English skills, both verbal and written.

Nice to Have

• Startup mindset: adaptable, proactive, and comfortable with ambiguity.
• Deep hands-on experience with cloud platforms (AWS, GCP, or Azure) – including real understanding of how compute, networking, and storage work under the hood.
• Deep knowledge of EKS, GKE, or AKS internals.
• Container runtime experience CRI-O, runc, containerd.
• Cloud storage depth – block storage, CSI, volume management, filesystem internals.
• Low-level Linux experience: process internals, packet-level networking (NAT, iptables, conntrack, eBPF, SDN), filesystems, storage.
• Low-level systems programming experience in C or C++.
• Kubernetes or cloud-native OSS contributions.
• Experience with AI coding agents and agentic development workflows.

We Offer

• Competitive salary (€6,500 – €9,000 gross, depending on the level of experience)
• Enjoy a flexible, remote-first global environment.
• Collaborate with a global team of cloud experts and innovators, passionate about pushing the boundaries of Kubernetes technology.
• Equity options.
• Get quick feedback with a fast-paced workflow. Most feature projects are completed in 1 to 4 weeks.
• Spend 10% of your work time on personal projects or self-improvement.
• Learning budget for professional and personal development – including access to international conferences and courses that elevate your skills.
• Annual hackathon to spark new ideas and strengthen team bonds.
• Team-building budget and company events to connect with your colleagues.
• Equipment budget to ensure you have everything you need.
• Extra days off to help maintain a healthy work-life balance.

About the Company

Cast AI is a company dedicated to transforming cloud-native operations and maximizing Kubernetes cost savings. We are a team of cloud experts and innovators passionate about pushing the boundaries of Kubernetes technology.

Hiring Process

• Screening call with Recruiter
• Hiring Manager interview
• Technical interview (system design)
• Live coding
• Culture Check interview with an executive

*As part of our standard hiring process, we would like to inform you that a background check may be conducted at the final stage of recruitment through our third-party provider, Checkr.

*Please note that Cast AI does not provide any form of visa sponsorship/work permit.