Senior DevOps Engineer

This company builds large-scale public data infrastructure, data pipelines that collect, structure, and deliver high-volume public web data for mission-critical companies in cybersecurity, public safety, and digital risk protection. Their systems power platforms that detect bad actors, uncover impersonation and fraud, identify coordinated manipulation, and help public safety organizations respond faster to real-world risks. This isn't dashboards or surface-level insights, it's stable, production-grade data flows that become part of customers' core products, with real-world impact on safety and fraud prevention. Operating globally, they serve industry leaders across 20+ countries who depend on them for scale, reliability, and depth.

Profitable from day one, fully bootstrapped (no outside funding raised), and growing fast. As part of R&D expansion, they're building Krakow into a key engineering hub that will own core systems and drive the next phase of growth.

Position overview

We're looking for a Senior DevOps Engineer to join the infrastructure team, reporting directly to the DevOps Team Leader. This role partners with engineering leadership to drive advanced infrastructure initiatives end to end, from system design through production hardening, setting the technical bar for operational excellence across the company.

The immediate challenge: a high-volume, multi-account AWS environment with real delivery, scaling, and operational problems to solve along the way.

Responsibilities

• Drive cloud and migration strategy: work under the DevOps Team Leader to architect and execute the migration from ECS Fargate to Kubernetes (EKS) without downtime, while maintaining the existing cloud estate
• Advance infrastructure as code: design and implement modern, modular IaC frameworks using Terraform and OpenTofu for consistent, multi-environment deployments
• Architect enterprise CI/CD: evolve delivery pipelines (GitHub Actions, OIDC federation) at scale, reducing developer friction and raising deployment safety across dozens of services
• Scale data-intensive infrastructure: oversee performance, capacity, and resilience of a high-volume data layer (ClickHouse, ScyllaDB, DynamoDB, RDS, Redis) and event-driven messaging pipelines
• Enforce reliability and observability: apply org-wide reliability standards using modern telemetry (OpenTelemetry, Coralogix, Grafana), ensuring on-call is driven by signal, not noise
• Balance growth and governance: make high-impact technical tradeoff decisions balancing velocity, least-privilege security, zero-trust access (Tailscale), and FinOps cost efficiency

What we're looking for

• Deep hands-on experience running production infrastructure on AWS, ideally multi-account, high-volume environments
• Strong Kubernetes experience, including migrations from container orchestration platforms like ECS Fargate
• Proven IaC expertise with Terraform (OpenTofu a plus)
• Experience building and scaling CI/CD pipelines, GitHub Actions and OIDC federation strongly preferred
• Comfort operating data-intensive systems at scale (ClickHouse, ScyllaDB, DynamoDB, RDS, Redis or equivalents)
• Strong observability practice, OpenTelemetry, Grafana, or similar telemetry stacks
• A security-first mindset: least-privilege, zero-trust principles
• Senior-level judgment on tradeoffs between speed, safety, and cost