Castaigroupinc
Senior Software Engineer | Kubernetes Automation
Bulgaria; Croatia; Cyprus; Finland; Hungary; Ireland; Lithuania; Malta; Moldova; Montenegro; North Macedonia; Poland; Romania; Slovenia; Sweden. Posted a month ago
The role
You will design and build distributed systems that operate Kubernetes infrastructure autonomously at scale. This involves writing production Go services to manage cloud resources and owning features from design to production rollout.
What you will do
- Design and build distributed systems that operate Kubernetes infrastructure autonomously at scale
- Write production Go services that interact with AWS, GCP, and Azure APIs
- Own features end-to-end from design through implementation, testing, and production rollout
- Debug complex production issues across cloud providers, Kubernetes clusters, and distributed services
- Collaborate with product and other engineering teams
- Work with time-series data, cloud provider APIs, and Kubernetes control plane internals
- Contribute to product direction and backlog
- Participate in on-call rotation for teams that require it
Required qualifications
- Strong software engineering fundamentals
- Understanding of Kubernetes internals – autoscaling and networking
- Personally driven a complex project end-to-end
- Experience with AI coding agents and agentic development workflows
- Used observability tooling in production
- CI/CD and DevOps practices experience
- Strong English skills, both verbal and written
- Startup mindset: adaptable, proactive, and comfortable with ambiguity
Nice to have
- Deep hands-on experience with cloud platforms (AWS, GCP, or Azure)
- 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
Benefits
- Flexible, remote-first global environment
- Equity options
- 10% of work time on personal projects or self-improvement
- Learning budget for professional and personal development
- Annual hackathon
- Team-building budget and company events
- Equipment budget
- Extra days off
Before you apply
- Candidates must reside in specific European countries
- Cast AI does not provide any form of visa sponsorship/work permit
- A background check may be conducted at the final stage of recruitment
About the company
Cast AI is a global team of cloud experts and innovators passionate about pushing the boundaries of Kubernetes technology.