AI Platform Engineer (AI)

Location: Prague, Czech Republic; hybrid

Company

hirify.global is a security-first crypto company behind Trezor, the inventor of the first hardware wallet.

What you will do

• Own the lifecycle of a dedicated multi-GPU inference server, including the operating system, storage, networking, observability, and alerting, in collaboration with IT.
• Build, deploy, upgrade, and tune the internal model-serving stack using technologies such as vLLM, SGLang, LiteLLM, and Open WebUI.
• Benchmark and evaluate open-weight model releases for quality, throughput, and latency, and recommend suitable models.
• Manage quotas, routing, cost and usage reporting, queueing, and prioritization across teams, including cloud model usage when needed.
• Support developers integrating internal models into IDE assistants, agents, CI pipelines, and internal applications.
• Maintain APIs, endpoints, documentation, onboarding guides, workshops, and office hours.

Requirements

• Hands-on coding experience and infrastructure-as-code skills with Ansible, Terraform, Docker, or Kubernetes.
• Linux systems administration experience covering networking, storage, containers, systemd, and kernel-level troubleshooting.
• Genuine interest in the open-weight model ecosystem and a service-oriented approach to supporting engineers.
• English required for daily work.

Nice to have

• Production or serious homelab experience serving LLMs with vLLM, SGLang, llama.cpp, Ollama, or similar tools.
• NVIDIA GPU operations experience with drivers, CUDA, NVLink, MIG, nvidia-smi, or DCGM.
• Datacenter experience involving rack power budgets, liquid cooling, or hardware vendor support.
• Experience with fine-tuning, LoRA, quantization, or model evaluation methodology.
• Czech language skills.

Culture & Benefits

• High ownership and freedom in a pioneering, security-first, open-source environment.
• Flexible working hours and a supportive, transparent culture.
• Option to get paid in bitcoin.
• Professional development budget for training, courses, and workshops.
• Renovated office with a gym, recreational facilities, 3D printer, free parking, and additional wellness benefits.

Hiring process

• Submit a CV and a few words about yourself for application review.