Senior Software Engineer | Infrastructure
New
C
Cast AICloud Infrastructure
Candidates residing in the following European countries: Bulgaria, Croatia, Estonia, Greece, Hungary, Latvia, Lithuania, Poland, Romania, Slovakia, Slovenia, and Ukraine.Full-TimeSenior
Salary€6,500 - €9,000 gross, depending on the level of experience
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Job Details
- Languages
- English
- Required Skills
- AWSGCPKubernetesAzureGogRPCRESTful APIsLinuxDistributed Systems
Requirements
- Strong backend fundamentals and production-grade coding, preferably Go.
- Hands-on Kubernetes internals, cloud infrastructure, or large-scale distributed systems experience.
- Clear English communication, collaborative and self-directed.
- Bias toward action and ownership.
- Deep knowledge of EKS, GKE, or AKS internals (preferred).
- Low-level Linux experience: process internals, networking (NAT, iptables, conntrack, SDN), filesystems, storage (preferred).
- Kubernetes or cloud-native OSS contributions (preferred).
- Cloud storage depth - block storage, CSI, volume management, filesystem internals (preferred).
- Container runtime experience (CRI-O, runc, containerd) or CRIU (preferred).
- Experience with AI coding agents and agentic development workflows (preferred).
- Comfort building where there's no playbook (preferred).
Responsibilities
- Design, build, and operate backend services, Kubernetes operators, and controllers in Go across AWS, GCP, and Azure.
- Solve infrastructure-layer problems — networking, scheduling, storage, compute, or container runtime internals.
- Build and maintain high-throughput services (gRPC/REST) and async orchestration workflows.
- Shape public and internal APIs.
- Leverage and improve AI-powered development workflows.
- Participate in design reviews, code reviews, on-call, and customer deep-dives.
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