Cast AI is hiring an Engineering Manager for the KUBE team. This hybrid, hands-on role combines technical leadership and coding (at least 50% individual contribution) to build and operate Kubernetes node provisioning and multi-cloud infrastructure across EKS, GKE, AKS and Cast AI Anywhere. Responsibilities include managing and mentoring engineers, collaborating with product stakeholders, ensuring scalability and resilience, contributing to CI/CD and GitOps, and participating in on-call rotations. Required: strong software engineering background, in-depth Kubernetes and multi-cloud experience, Terraform/IaC knowledge, and CI/CD/GitOps expertise. Applications are accepted only from candidates residing in Bulgaria, Croatia, Estonia, Greece, Hungary, Latvia, Lithuania, Poland, Romania, Slovakia, Slovenia, and Ukraine. Cast AI does not provide visa sponsorship.

Cast AI is hiring a hands-on Growth Performance Engineer to lead paid media (Google, LinkedIn, emerging channels), AI visibility (monitoring and influencing AI-generated answers), performance partnerships, full-funnel tracking and attribution, and experimentation. The role is remote-first across specified European countries; Cast AI does not provide visa sponsorship. Compensation includes salary and equity options.

Cast AI is hiring Senior Software Engineers for teams owning the inference API, harnesses, and agent platform. Responsibilities include end-to-end feature ownership (design, implementation, testing, rollout), building distributed systems, observability, billing/metering, and security. Preferred experience: Go or TypeScript, Kubernetes, cloud platforms (AWS/GCP/Azure), observability tooling (Prometheus/Grafana/OpenTelemetry), CI/CD and performance tuning. Role is remote-first across listed European countries; Cast AI does not provide visa sponsorship.

Join Cast AI to design, build, and operate backend services, Kubernetes operators, and controllers in Go across AWS, GCP, and Azure. Work focuses include cluster/node lifecycle, cross-cloud provisioning, live container migration (CRIU, container runtimes), and storage optimization (CSI, filesystem internals). Location-specific role: hiring candidates residing in Bulgaria, Croatia, Estonia, Greece, Hungary, Latvia, Lithuania, Poland, Romania, Slovakia, Slovenia, or Ukraine. Salary range listed: €6,500–€9,000 gross. No visa sponsorship provided.

Join Cast AI as a Senior Software Engineer working on teams such as Workload Optimization, Karpenter, Reporting, Pricing, Autoscaler, Identity, or Billy. Role involves writing production Go services, designing distributed systems that manage cloud resources and Kubernetes at scale, debugging cross-cloud production issues, and owning features end-to-end. Candidates must reside in one of the listed European countries; the company does not provide visa sponsorship.

Work on inference and serving infrastructure to improve throughput, latency, and KV cache utilization across GPUs and distributed topologies. Responsibilities include kernel-level tuning, quantization without quality regression, profiling and benchmarking, batching and speculative decoding, memory and cold-start optimizations, and setting technical direction. Technology stack includes Python, vLLM, SGLang, TensorRT-LLM, PyTorch, CUDA, Kubernetes and observability/tooling such as Prometheus, Grafana, ClickHouse and GitLab CI.