Senior Cloud & Systems Engineer - Linux | AWS & GCP | Terraform | Kubernetes | On-prem

We are looking for a skilled Senior System Engineer (Cloud & AI) to design, deploy and operate our cloud and on-prem infrastructure across multiple environments, keeping production stable, automated and scalable. You’ll work across multiple cloud providers, automate infrastructure and operations as code, and bring modern AI tooling into day-to-day operations through AI-assisted automation, support for AI/ML workloads, and AI-augmented runbooks and self-service. About the job - Own reliability of our multi-environment platform across AWS, GCP, and on-prem virtualisation. - Build and operate infrastructure as code with Terraform across core domains: compute, storage, databases, IAM, DNS, certificates, and managed services (e.g. AWS: EC2/RDS/S3/CloudFront/ALB/Route 53/KMS/EKS/ECS; GCP: Compute Engine/Cloud Load Balancing/Cloud DNS/Cloud KMS/GKE/Cloud SQL/Cloud Storage/Load Balancing). - Improve cost, scalability, and performance. - Understand billing models and right-sizing levers across clouds. - Operate and harden production systems (Linux + Windows): patching, lifecycle maintenance, fleet tooling/agents, and incident response (MTTR-focused). - Run critical internet-facing foundations: email infrastructure and security posture (SPF/DKIM/DMARC/ARC), plus DNS and TLS/ACME certificate automation. - Automate operations with scripts/playbooks (Python/Bash/Go) in a PR-based workflow. - Build self-service and reduce recurring toil (runbooks, DNS/cert changes, etc.). - Improve observability and reliability (monitoring/alerting; Prometheus/Grafana/SNMP/exporters/agents) and collaborate cross-functionally on upgrades and scaling. - Support security and dependency issues: remediate findings (SAST, headers, dependencies), harden services, and help maintain internal infra web apps (Node/Go/PHP). What we are looking for - Demonstrated experience operating production infrastructure across cloud and virtualized/on-prem environments. - Strong Linux systems administration skills, with proven ability to run, troubleshoot, and harden production services. - Hands-on experience with Infrastructure as Code and configuration management (preferred: Terraform), with an automation-first approach. - Strong scripting skills (e.g. Python, Bash, Node, Go, PHP) to automate, integrate, and operationalize systems. - Multi-cloud experience, ideally across AWS and GCP (compute, storage, databases, identity, DNS, and managed services). - Experience with containers and orchestration (Docker + Kubernetes; EKS/GKE/ECS). - A strong security mindset (least privilege, robust secrets hygiene, and a focus on root-cause remediation). - Strong problem-solving, ownership, and communication skills. Location: Cluj-Napoca About us Crafting Technologies is a technology company based in Cluj-Napoca, built around a strong passion for software engineering and functional programming. Over the years, we’ve built one of the largest Erlang and Elixir engineering teams in Romania, bringing together experienced engineers who enjoy solving complex technical problems and building reliable, scalable systems. Our expertise goes beyond a specific technology. We value strong engineering fundamentals, curiosity, continuous learning, and people who want to understand how things work, challenge existing solutions, and find better ways to build software. If this sounds interesting, apply or reach out to us directly. And if you know a great Senior System Engineer who might enjoy working with us, feel free to send them our way!