Senior Site Reliability Engineer (SaaS)

Our Partner is creating a self-hosted SaaS platform designed for regulated and air-gapped environments. As a Senior SRE, you will own the installer, updater, and debug toolkit — the systems that make SaaS+ deployable, upgradable, and operable without external assistance.

This is your chance to design the lifecycle engine of SaaS+ — the foundation ensuring customers can install, update, and troubleshoot with confidence.

Project information:

📍 Fully remote across the European Union

💼 Permanent contract | B2B cooperation

💰 150-175 PLN per hour + benefits

Your missions:

• Installer & Updater - Support software engineers in building an offline-capable installer (CLI + UI) and a one-click upgrade/rollback orchestrator using immutable Docker/OCI images, Helm charts, and Kubernetes operators

• Debug Toolkit - Deliver the air-gap debug system: diagnostics, log/metric capture, auto-redaction, and signed export artifacts so operators can resolve issues independently

• Resilience & Operability - Embed self-diagnostics, health checks, and recovery steps so operators can recover quickly without relying on external support

Our technical stack:

• Kubernetes: k3s, Traefik, Cilium, Ceph, ArgoCD, Helm, Rancher

• Observability: Thanos, Prometheus, Grafana, Loki

• Tools: Python, Ansible, SaltStack, Terraform

• Databases: Elasticsearch (> 300 nodes), Kafka (> 3M rps), Clickhouse (> 10 TB), Redis, KeyDB, PostgreSQL, ArangoDB

• CI/CD: GitHub Actions, Harbor

• Cloud providers: OVH, Akamai, Azure, Scaleway

What we're looking for in candidates:

• 5+ years of experience in an SRE role on large-scale infrastructure

• Strong expertise in Kubernetes operators, Helm, and containerized deployments

• Proven track record of building installation and upgrade frameworks for distributed systems

• Hands-on experience with immutable infrastructure and secure artifact management (signing, SBOMs)

• Ability to make complex systems operator-friendly, even in restricted and air-gapped environments

What we offer

• B2B contract with an hourly rate of150-175 PLN

• Fully remote across the EU

• Private healthcare package

• Training budget to support your professional development

• Flexible working hours to fit your lifestyle

• Sports card for your wellbeing

• Direct influence on a mission-critical platform used in highly regulated industries

• A collaborative team culture where engineering excellence is valued

Recruitment process

1. Introductory call

2. Technical assignment

3. Meeting with the team