June 8, 2026

RedHat Openshift Application Administrator

Senior • Hybrid

Warsaw, Poland

Opis projektu:

Dołączysz do zespołu odpowiedzialnego za rozwój i utrzymanie środowiska konteneryzacji opartego o Red Hat OpenShift. Projekt obejmuje pracę z nowoczesnymi aplikacjami cloud-native, ich wdrażanie, skalowanie oraz zapewnienie bezpieczeństwa i wysokiej dostępności. Będziesz współpracować z zespołami developerskimi oraz uczestniczyć w budowie i optymalizacji procesów CI/CD i GitOps.

Zadania:

  • Wdrażanie, konfiguracja i utrzymanie aplikacji konteneryzowanych na OpenShift.

  • Zarządzanie projektami/namespaces (RBAC, quotas, limit ranges, zasoby).

  • Konfiguracja wystawiania aplikacji (Routes, Services, Ingress, TLS, load balancing).

  • Implementacja i utrzymanie mechanizmów bezpieczeństwa (SCC, Pod Security, Network Policies, zarządzanie sekretami).

  • Skalowanie i optymalizacja aplikacji (HPA/VPA, tuning zasobów, troubleshooting wydajności).

  • Wsparcie zespołów developerskich (analiza logów, diagnostyka podów, rollbacki, rozwiązywanie incydentów).

  • Wdrażanie i utrzymanie procesów CI/CD oraz GitOps (ArgoCD, Jenkins, pipelines).

  • Monitoring i analiza wydajności aplikacji (Prometheus, Grafana, alerty).

  • Tworzenie i utrzymywanie dokumentacji technicznej, SOP-ów oraz runbooków.

  • Współpraca przy wdrażaniu nowych funkcjonalności i usprawnień.

Wymagania:

  • Wykształcenie wyższe (min. licencjat / inżynier – Level 6).

  • Minimum 7 lat doświadczenia zawodowego (po ukończeniu edukacji).

  • Minimum 3 lata doświadczenia na podobnym stanowisku (OpenShift / Kubernetes).

  • Język angielski min. B2.

  • Certyfikat (jedno z poniższych): Red Hat OpenShift Certified OpenShift Administrator (lub równoważny) lub dodatkowe 3 lata doświadczenia w administracji OpenShift (łącznie min. 6 lat na podobnym stanowisku)

  • Wiedza techniczna:

  • Doświadczenie w pracy z aplikacjami konteneryzowanymi w OpenShift.

  • Bardzo dobra znajomość YAML, Helm Charts, OpenShift Templates.

  • Znajomość modelu aplikacyjnego OpenShift (Projects, Namespaces, ConfigMaps, Secrets itd.).

  • Doświadczenie w konfiguracji bezpieczeństwa (SCC, Pod Security, Network Policies, skanowanie obrazów).

  • Doświadczenie w skalowaniu i optymalizacji aplikacji.

  • Znajomość mechanizmów wystawiania aplikacji (Routes, Ingress, TLS, API Gateway).

  • Doświadczenie z CI/CD oraz GitOps (ArgoCD, Jenkins).

  • Znajomość monitoringu i logowania (Prometheus, Grafana).

  • Bardzo dobre umiejętności automatyzacji (Ansible, Python, Helm).

  • Doświadczenie w zarządzaniu namespace’ami i konfiguracją RBAC.

Mile widziane:

  • Certyfikaty Red Hat / Kubernetes.

  • Doświadczenie w pracy w środowisku enterprise / dużej skali.

  • Doświadczenie w pracy z architekturą mikroserwisową.

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Everyday tooling: Comfortable with git, YAML, oc/kubectl, bash, and Visual Studio Code. Nice to have / Plus skills Observability: Working knowledge of Prometheus and Grafana for monitoring, alerting, and operational troubleshooting. Service Mesh: Red Hat Service Mesh (Istio) fundamentals and operations. Container tooling: such as Podman and Skopeo for build, debug, and image management. Infrastructure as Code beyond core automation (e.g. Terraform). CI/CD: Working with pipelines (Azure DevOps). Experience in working as a power user or system administrator. Some basic knowledge in virtualization and HCI: VMware, Nutanix/AHV. Observability & ITOM: Splunk; ServiceNow and IBM Netcool/Omnibus. Artifact management: JFrog Artifactory. How you work Pragmatic SRE mindset with a bias to automate, document, and standardize. Comfortable pairing with developers and security to meet compliance without slowing down delivery. Thrives in Agile/Scrum, communicates clearly, and owns outcomes end‑to‑end. Please note that this is a permanent position, and we do not offer freelance/contract arrangement for the role. #LI-AK1 About Us Why join us Embark on your new adventure at Euroclear, and work at the heart of the global capital markets. We connect over 2,000 financial institutions across the globe. As an open and resilient infrastructure, we contribute to the stability of the financial markets. We help clients cut through complexity, lower costs, and mitigate risks of financial transactions. At Euroclear, we have the clear ambition to use our key role to facilitate and accelerate a sustainable global financial system. What We Offer: Work closely with inspiring, supportive and engaged colleagues from more than 80 different countries. Practice your talents in a highly professional international environment. Join a learning and development environment with an emphasis on knowledge sharing and training. Competitive salary and comprehensive benefits. Ways of working Find your own optimal balance within our hybrid working model, where you can connect at the office 8 days a month and also benefit from remote working. Great Place to Work for All We are committed to creating an inclusive culture that celebrates diversity and strives to be a Great Place to Work for All. All qualified applicants will be considered for employment, regardless of any aspect that makes them unique (including race, religion, national origin, gender, sexual orientation, age, marital status, pregnancy, disability, ...). If you need any specific accommodation due to disability or any other reason, you can let the recruiter know during your application process. Our values guide how we work together and shape our future: Our mission and values - Euroclear About the Team Group Technology Services (GTS) plans, builds and runs the global infrastructure of Euroclear, and is additionally responsible for the IT service management to the operating entities of the various Group markets. Group Technology Services operates its IT systems and IT services in such a way that, at an appropriate and benchmarked cost level, it can deliver the agreed levels of service to support the requirements of the business processes, for both normal operations and during disaster recovery.

Technology

TQLO SPÓŁKA Z OGRANICZONĄ ODPOWIEDZIALNOŚCIĄ

Senior Platform Engineer (Kubernetes)

Senior

Hybrid

Warsaw, Poland

140 - 180 PLN

🏢 Summary: The role focuses on building, automating, and optimizing cloud infrastructure and CI/CD processes in AWS or GCP environments. You will work hands-on with Kubernetes and modern DevOps tools to ensure scalable, secure, and reliable software delivery. The position involves close collaboration with engineering teams to enhance infrastructure and deployment practices. 🗂️ Requirements: Proven experience in Infrastructure Engineering, DevOps, SRE, or Backend Development, Strong expertise in Kubernetes (cluster management and application deployment), Strong knowledge of CI/CD principles, Practical experience with CI/CD tools, Willingness to work with GitHub Actions, Experience with cloud platforms (AWS or GCP) 📃 Skills: Kubernetes, Terraform, Helm, ArgoCD, AWS, GCP, GitHubActions, CICD 🏢 Description: Responsibilities: ● Work hands-on with modern tools such as Kubernetes, Terraform, Helm, and ArgoCD. ● Develop and continuously enhance internal cloud infrastructure across AWS or GCP ● Design, maintain, and optimize CI/CD pipelines using GitHub Actions to ensure reliable and efficient software delivery. ● Collaborate closely with engineering teams to understand their requirements, resolve issues, and drive automation and scalability initiatives. ● Advocate for and implement best practices in infrastructure, deployment processes, and cloud security across the organization. Requirements: ● Proven experience in infrastructure engineering, DevOps, Site Reliability Engineering (SRE), or backend development. ● In-depth expertise in Kubernetes—including both cluster management and application deployment. ● Strong understanding of CI/CD principles and practical experience with any CI/CD tools (willingness to work with GitHub Actions is essential). ● Proactive and ownership-driven mindset with strong problem-solving abilities. ● Excellent communication skills and a collaborative approach in cross-functional teams. Nice to Have: ● Experience managing OpenShift environments. ● Familiarity with Java and Gradle build systems. ● Awareness of security best practices in cloud-native and containerized environments. Working mode: ● One day per week in the office (Warsaw center) ● Additional 20 days of holidays per year

Technology

Creotech

DevOps

Mid

On-site

Warsaw, Poland

🏢 Summary: DevOps Engineer role focused on building and maintaining CI/CD pipelines and infrastructure for mission-critical systems, including flight software and ground systems. The position involves automating infrastructure, managing containerized environments, and ensuring observability, reliability, and security across hybrid environments. The role supports development teams by delivering robust DevOps tooling and operational excellence. 🗂️ Requirements: Minimum 3 years of experience in DevOps or related role, Practical experience with GitLab CI/CD and/or Jenkins, Production experience with Docker and Kubernetes, Experience with Terraform and Ansible for infrastructure automation, Knowledge of Prometheus, Grafana, Loki, OpenTelemetry, Ability to troubleshoot performance and stability issues in distributed systems, Experience with Linux systems, Experience with artifact repositories such as Nexus, Good technical English proficiency 📃 Skills: GitLab, Jenkins, Docker, Kubernetes, Terraform, Ansible, Prometheus, Grafana, Loki, OpenTelemetry, Linux, Nexus, Git 🏢 Description: Zadania Budowa i utrzymanie pipeline CI/CD w GitLab CI/CD oraz Jenkins dla flight software, systemów naziemnych i narzędzi symulacyjnych. Zapewnienie powtarzalności buildów, wersjonowania oraz archiwizacji artefaktów w Git i Nexus. Utrzymanie oraz automatyzacja środowisk testowych (w tym hardware in the loop), on-premise, chmurowych i hybrydowych. Rozwój i utrzymanie Infrastructure as Code w Terraform i Ansible. Zarządzanie środowiskiem kontenerowym (Docker, rejestry obrazów) oraz klastrami Kubernetes. Konfiguracja i rozwój monitoringu, logowania i telemetryki (Prometheus, Grafana, Loki, OpenTelemetry). Współpraca z zespołem security przy wdrażaniu hardeningu, kontroli dostępu i audytowalności. Udział w obsłudze incydentów, analizie przyczyn źródłowych oraz podnoszeniu gotowości operacyjnej. Wsparcie zespołów developerskich poprzez dostarczanie narzędzi, szablonów i automatyzacji procesu dostarczania oprogramowania. Wymagania Minimum 3 lata doświadczenia na stanowisku DevOps lub pokrewnym. Praktyczna znajomość GitLab CI/CD i/lub Jenkins. Doświadczenie w pracy z Docker i Kubernetes w środowiskach produkcyjnych. Doświadczenie w automatyzacji infrastruktury z wykorzystaniem Terraform i Ansible. Znajomość rozwiązań obserwowalności i monitoringu (Prometheus, Grafana, Loki, OpenTelemetry). Umiejętność diagnozowania problemów wydajnościowych i stabilnościowych w środowiskach rozproszonych. Doświadczenie w pracy z systemami Linux oraz repozytoriami artefaktów (np. Nexus). Umiejętność pracy zespołowej i skutecznej komunikacji technicznej. Dobra znajomość języka angielskiego pozwalająca na pracę z dokumentacją techniczną. Mile widziane Doświadczenie w środowiskach mission-critical (space, aerospace, telco, automotive, defense). Znajomość zagadnień hardware in the loop oraz integracji systemów embedded. Doświadczenie z klastrami hybrydowymi i automatyzacją wdrożeń wielośrodowiskowych. Znajomość praktyk SRE, incident response oraz postmortem. Doświadczenie we wdrażaniu polityk bezpieczeństwa w pipeline CI/CD. Oferujemy Udział w projektach o wysokiej odpowiedzialności technologicznej, realizowanych w obszarze systemów krytycznych i technologii kosmicznych. Realny wpływ na kształtowanie architektury procesów DevOps oraz środowisk inżynierskich. Pracę z nowoczesnym stosem narzędzi, dużą autonomię i przestrzeń na własne inicjatywy. Możliwość rozwoju kompetencji zawodowych poprzez udział w innowacyjnych i ambitnych projektach. Stabilne zatrudnienie w nowoczesnej firmie o ugruntowanej pozycji rynkowej. Przyjazną, partnerską atmosferę współpracy oraz pracę w zgranym zespole. Atrakcyjne wynagrodzenie oraz pakiet benefitów ( m.in . prywatna opieka medyczna, karta sportowa).