Senior Linux Administrator - Kubernetes & API Ops

Sii Poland; Łódź; On-site; PLN 120,000 - 168,000; Full time

Benefits offered by this job

Great Place to Work

Centre of internal trainings

Profit sharing

Open and accessible management team

Medical care

Job summary

Sii Poland is seeking an experienced Linux Administrator to join an international team (Germany, Poland, India). You will ensure stable operation of our system environment, monitor performance, and support API tasks in an Agile setting.

Requirements include 4+ years of OS administration, strong Linux skills, Docker and Kubernetes, Jenkins basics, networking know-how, and fluency in English (B2) and Polish with Poland residency.

Qualifications

• Minimum 4 years of experience in operating system administration.
• Strong Linux skills, including command line usage, troubleshooting, and system maintenance.
• Basic knowledge of Jenkins, including running pipelines and monitoring tasks.
• Understanding of networking concepts (SSH, firewalls, proxy, connection analysis).
• Very good command of English - B2 level
• Fluent Polish language skills and residence in Poland required.

Responsibilities

• Ensuring stable operation of our system environment.
• Independent troubleshooting at L1–L2 level and user support.
• Analyzing logs and issues related to system and network.
• Operating container environments (Kubernetes, Docker) at the operational level.
• Supporting API-related tasks, including configuration, small scripts, and minor adjustments.
• Performing system updates, maintenance, and upkeep.
• Handling incidents and processing tickets.

Skills

Linux

Troubleshooting

Networking

English (B2)

Tools

Docker

Kubernetes

Jenkins

Git

Job description

Sii Poland is seeking an experienced Linux Administrator to join an international team (Germany, Poland, India). You will ensure stable operation of our system environment, monitor performance, and support API tasks in an Agile setting.

Requirements include 4+ years of OS administration, strong Linux skills, Docker and Kubernetes, Jenkins basics, networking know-how, and fluency in English (B2) and Polish with Poland residency.