DevOps Engineer (Mid / Senior)

20k - 28k PLN20 000 - 28 000 PLN/ mies./ mies.B2BB2B (netto)

MidOn-site·GdańskFull-time·B2B

#477497·Dodano dziś·0

Źródło: justjoin.it

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Tech Stack / Keywords

KubernetesNetworkingLinux AdministrationObservabilityInfrastructure as codeCI/CDVirtualizationData LayerKubernetes NetworkingSecurity and hardening

Podsumowanie oferty

Hands-on DevOps Engineer for the Open Telemetry Platform, working in a small infrastructure team to run and evolve production clusters and their underlying infrastructure. The role focuses on Kubernetes, networking, observability, and incident resolution across the platform.

Wymagania

Production experience with Kubernetes, including cluster lifecycle (including k3s), networking (CNI, Ingress, MetalLB), RBAC, storage, scheduling, and performance troubleshooting.
Networking fundamentals: TCP/IP, DNS, routing, NAT, load balancing, site-to-site VPNs (IPsec, GRE over IPsec), firewalls (pfSense, nftables, firewalld), tcpdump, and Wireshark.
Production Linux administration, including RHEL/Rocky and Debian/Ubuntu.
Observability skills, including correlating logs, metrics (Prometheus, Grafana), and traces to find root causes across distributed systems.
Infrastructure as Code experience with Ansible.
CI/CD and GitOps experience with Jenkins, ArgoCD, and Helm.
Virtualization experience with Proxmox VE/KVM and Docker.
Enough knowledge of Java/Scala stacks to troubleshoot garbage collection, heap, and resource issues.
Operational experience with data-layer technologies: Cassandra, MariaDB (replication, failover, HA), Kafka, RabbitMQ, Redis, and Hazelcast.
Use AI tools such as Claude Code or Copilot in daily work and verify their output.
End-to-end ownership of incidents, including explaining what happened, actions taken, mistakes made, and subsequent changes.
Clear written and spoken communication in Polish and English.
Mid: solid in most areas and deep in a few; handles typical incidents independently and knows when to escalate.
Senior: deep in most areas; able to handle a serious incident independently and deliver a post-mortem the next day.

Nice to have:

Advanced Kubernetes networking (Calico, Cilium) or a service mesh.
Security and hardening experience with Falco, Network Policies, FreeIPA, Wazuh, or vulnerability management.
Bare-metal hardware experience (Dell iDRAC, RAID), MikroTik, or Tailscale.
Performance tuning of JVM applications, Cassandra, or Kafka.
Experience writing runbooks and post-mortems that others use.

Obowiązki

Run and evolve Kubernetes clusters, including upgrades, scaling, networking, and security.
Resolve incidents across the full stack, including networking, JVM, Kafka, MariaDB, and Cassandra.
Maintain useful observability through dashboards and alerts.
Automate repetitive operational work.
Maintain CI/CD and GitOps using Jenkins and ArgoCD.
Patch and mitigate vulnerabilities across the fleet.
Participate in on-call and incident response.
Document work in tickets, runbooks, and post-mortems.
Propose improvements backed by data and deliver agreed changes end-to-end.

Benefity

Paid on-call.
Training budget and in-house training.
Private healthcare and a sport subscription.
Company phone.
Free coffee and bike parking.

Dofinansowanie szkoleń

Szkolenia wewnętrzne

Opieka zdrowotna

Karta sportowa

Telefon

Parking dla rowerów

Napoje w biurze

Inne informacje

The role includes a paid on-call rotation for a platform that runs 24/7.
Recruitment process: screening call (about 30 minutes), technical interview (60–90 minutes), and manager interview (about 45 minutes).

Abaro

Pracodawca

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