Senior Platform Engineer (RedHat and Kubernetes)
⚲ Kraków
17 000 - 20 000 PLN brutto (UoP)
Wymagania
- Red Hat
- Kubernetes
- CI/CD
- Linux
- Ansible
- Python
- routing
- Network Protocols
- Firewall
- Virtualization
Opis stanowiska
As a Senior Platform Engineer, you are a primary technical contributor responsible for building the services, tools, and processes that enable our engineering organization. We are looking for a "builder" who thrives in bare-metal and virtualized on-premise environments. You will lead complex technical projects, mentor junior engineers, and ensure our on-premise stack is automated, secure, and highly available.
The On-premise Infrastructure Engineering team is responsible for:
•
Design and implementation of local CI/CD pipelines within dedicated on-premise environments.
• Development and operation of common platform services—centered on RedHat OpenShift and Kubernetes.
• Full-stack ownership: Managing the physical and virtual layers, including Networking, Storage, and Compute.
Responsibilities will include:• Implementation: Lead the end-to-end deployment of RedHat OpenShift and Kubernetes clusters on private hardware.
• Automation: Build and maintain "Infrastructure as Code" (IaC) pipelines to automate server provisioning, OS hardening, and application deployment.
• Troubleshooting: Serve as the escalation point for complex networking, storage, or container orchestration issues.
• Security & Compliance: Implement security best practices (CIS hardening, SELinux) for air-gapped or highly secure on-premise environments.
• Performance Tuning: Optimize Linux kernel parameters and network configurations for high-throughput, low-latency Public Safety applications.
• Mentorship: Provide technical guidance and conduct rigorous code/configuration reviews for the engineering team.
Qualifications:
• Experience: 3+ years of professional experience in Systems Engineering, Platform Engineering, or Site Reliability Engineering (SRE) with a heavy focus on on-premise environments.
• Education: Bachelor’s degree in Computer Science, Information Technology, or a related technical field (or equivalent practical experience).
• Infrastructure Depth: Proven track record of deploying and maintaining production-grade Kubernetes or RedHat OpenShift clusters on bare-metal or virtualized private hardware.
• Linux Expertise: Strong command of Linux internals (storage, networking, process management) and the ability to debug issues across the entire stack.
• Network Proficiency: Hands-on experience with Data Center Networking fundamentals, including switching/routing, load balancing, and firewall rule implementation.
• Automation Mindset: Experience replacing manual operational tasks with automated workflows using Python, Ansible, or similar tools.
• Critical Thinking: Ability to work in an agile environment and handle the high-pressure demands of maintaining mission-critical Public Safety systems.
• Collaboration: Strong communication skills with the ability to document complex technical architectures and mentor junior team members.
• Strong level of curiosity and interest to learn
• Self motivated and able to maintain focus in a pressured environment
Primary Skills (Must-Have)
Orchestration: Expert-level RedHat OpenShift (OCP) & Kubernetes.
• Operating Systems: Advanced Linux Administration (RHEL preferred).
• Networking: L3/L4 Networking, BGP, Load Balancing (NGINX/HAProxy).
• Automation: Ansible, Python, and Shell scripting.
• Version Control: Git & GitOps (ArgoCD or Flux).
Nice-to-Have Skills
• Storage: Software Defined Storage (Ceph, Rook, or ODF).
• Virtualization: VMware vSphere or KVM management.
• Observability: Prometheus, Grafana, and ELK stack.
• Certifications: CKA (Certified Kubernetes Administrator) or RHCE.
• Security: Experience with CIS Hardening and STIG compliance in air-gapped environments.
In return for your expertise, we’ll support you in this new challenge with coaching & development every step of the way. Also, to reward your hard work you’ll get:
• Contract of Employment (UoP)
• Private medical coverage with dental package
• Life insurance, MultiSport card
• IP Tax Relief
• PPE (Employee Pension Plan)
• Employee Stock Purchase Plan (ESPP)
• Yearly salary increase and annual bonus
• Flexible working hours
• Comfortable work conditions (high class offices, parking space, volleyball field on site)
• Trainings and broad development opportunities
• Great team atmosphere (small scrum teams)
The On-premise Infrastructure Engineering team is responsible for:
•
Design and implementation of local CI/CD pipelines within dedicated on-premise environments.
• Development and operation of common platform services—centered on RedHat OpenShift and Kubernetes.
• Full-stack ownership: Managing the physical and virtual layers, including Networking, Storage, and Compute.
Responsibilities will include:• Implementation: Lead the end-to-end deployment of RedHat OpenShift and Kubernetes clusters on private hardware.
• Automation: Build and maintain "Infrastructure as Code" (IaC) pipelines to automate server provisioning, OS hardening, and application deployment.
• Troubleshooting: Serve as the escalation point for complex networking, storage, or container orchestration issues.
• Security & Compliance: Implement security best practices (CIS hardening, SELinux) for air-gapped or highly secure on-premise environments.
• Performance Tuning: Optimize Linux kernel parameters and network configurations for high-throughput, low-latency Public Safety applications.
• Mentorship: Provide technical guidance and conduct rigorous code/configuration reviews for the engineering team.
Qualifications:
• Experience: 3+ years of professional experience in Systems Engineering, Platform Engineering, or Site Reliability Engineering (SRE) with a heavy focus on on-premise environments.
• Education: Bachelor’s degree in Computer Science, Information Technology, or a related technical field (or equivalent practical experience).
• Infrastructure Depth: Proven track record of deploying and maintaining production-grade Kubernetes or RedHat OpenShift clusters on bare-metal or virtualized private hardware.
• Linux Expertise: Strong command of Linux internals (storage, networking, process management) and the ability to debug issues across the entire stack.
• Network Proficiency: Hands-on experience with Data Center Networking fundamentals, including switching/routing, load balancing, and firewall rule implementation.
• Automation Mindset: Experience replacing manual operational tasks with automated workflows using Python, Ansible, or similar tools.
• Critical Thinking: Ability to work in an agile environment and handle the high-pressure demands of maintaining mission-critical Public Safety systems.
• Collaboration: Strong communication skills with the ability to document complex technical architectures and mentor junior team members.
• Strong level of curiosity and interest to learn
• Self motivated and able to maintain focus in a pressured environment
Primary Skills (Must-Have)
Orchestration: Expert-level RedHat OpenShift (OCP) & Kubernetes.
• Operating Systems: Advanced Linux Administration (RHEL preferred).
• Networking: L3/L4 Networking, BGP, Load Balancing (NGINX/HAProxy).
• Automation: Ansible, Python, and Shell scripting.
• Version Control: Git & GitOps (ArgoCD or Flux).
Nice-to-Have Skills
• Storage: Software Defined Storage (Ceph, Rook, or ODF).
• Virtualization: VMware vSphere or KVM management.
• Observability: Prometheus, Grafana, and ELK stack.
• Certifications: CKA (Certified Kubernetes Administrator) or RHCE.
• Security: Experience with CIS Hardening and STIG compliance in air-gapped environments.
In return for your expertise, we’ll support you in this new challenge with coaching & development every step of the way. Also, to reward your hard work you’ll get:
• Contract of Employment (UoP)
• Private medical coverage with dental package
• Life insurance, MultiSport card
• IP Tax Relief
• PPE (Employee Pension Plan)
• Employee Stock Purchase Plan (ESPP)
• Yearly salary increase and annual bonus
• Flexible working hours
• Comfortable work conditions (high class offices, parking space, volleyball field on site)
• Trainings and broad development opportunities
• Great team atmosphere (small scrum teams)
🔍 Dekoder Ogłoszenia
🔴
We are looking for a "builder" who thrives in bare-metal and virtualized on-premise environments.
Szukamy kogoś, kto lubi pracować z fizycznym sprzętem i wirtualizacją na własnych serwerach, co może oznaczać więcej pracy manualnej i rozwiązywania problemów sprzętowych.
🔴
You will lead complex technical projects, mentor junior engineers, and ensure our on-premise stack is automated, secure, and highly available.
Oczekuje się od Ciebie samodzielnego prowadzenia projektów i odpowiedzialności za kluczowe aspekty infrastruktury, co może oznaczać dużą presję i odpowiedzialność.
🔴
Full-stack ownership: Managing the physical and virtual layers, including Networking, Storage, and Compute.
Będziesz odpowiedzialny za szeroki zakres technologii, od sprzętu po systemy operacyjne i konteneryzację, co wymaga wszechstronnej wiedzy i może być bardzo obciążające.
🔴
Serve as the escalation point for complex networking, storage, or container orchestration issues.
Będziesz osobą pierwszego kontaktu w przypadku poważnych problemów, co oznacza konieczność bycia dostępnym i rozwiązywania krytycznych awarii.
🔴
Optimize Linux kernel parameters and network configurations for high-throughput, low-latency Public Safety applications.
Praca nad optymalizacją dla aplikacji bezpieczeństwa publicznego może oznaczać pracę pod dużą presją czasu i wymagań dotyczących niezawodności.