Lead Infrastructure Engineer — Hybrid (Warsaw)

QED.ai; Województwo mazowieckie; Hybrid; PLN 240,000 - 320,000; Full time

Job summary

QED.ai, a technology company focused on public health and food security, seeks a Lead Infrastructure Engineer based in Warsaw, Poland. The role emphasizes hands-on leadership, shaping infrastructure strategy, and mentoring engineers while delivering reliable systems across countries.

You will own architecture, work with NixOS, k3s, Terraform on bare metal, and occasionally travel to set up hardware in local data centers. The position is hybrid with 2–3 days in the office weekly.

Qualifications

• 6+ years of infrastructure or systems engineering experience, with at least 1-2 years in a lead role.
• Broad knowledge of technology: Linux internals, networking, databases, containers, hardware performance, security.
• Strong software engineering fundamentals: version control, readable code, tests, robust design, data structures and algorithms.
• Working proficiency in English (≥ C1) and ability to express ideas clearly in writing and speech.
• Experience planning and delegating technical work and driving outcomes.
• Ability to operate across different time zones and cultures.

Responsibilities

• Own and evolve the infrastructure architecture, tooling strategy, and long-term technical decisions.
• Work with declarative tooling (NixOS + k3s + terraform) on bare metal with some cloud usage.
• Plan infrastructure layout, select components, test and deploy.
• Lead building of bare metal infrastructure for deployment in low to middle income countries.
• Handle internal/external communications.
• Participate in hiring, evaluate and interview candidates.
• Optionally travel to learn and set up hardware in local data centers.

Skills

Leadership

Linux internals

Networking

Databases

Containers

Security

Software engineering fundamentals

English (C1)

Communication

Cross-cultural collaboration

Tools

NixOS

Kubernetes

Terraform

Bare metal hardware configuration

Job description

QED.ai, a technology company focused on public health and food security, seeks a Lead Infrastructure Engineer based in Warsaw, Poland. The role emphasizes hands-on leadership, shaping infrastructure strategy, and mentoring engineers while delivering reliable systems across countries.

You will own architecture, work with NixOS, k3s, Terraform on bare metal, and occasionally travel to set up hardware in local data centers. The position is hybrid with 2–3 days in the office weekly.