Senior DevOps Engineer- IAM - in Columbus
Headquarters: Moldavská cesta, 040 11 Košice, Slovakia
URL: http://deutschetelekomitsolutions.sk
Company Description
Our brand Deutsche Telekom IT Solutions Slovakia entered the life of Košice region in 2006 under the name of T-Systems Slovakia and ever since has been inextricably linked with the region when it became one of the founding members of Košice IT Valley. We have managed to grow from scratch to the second largest employer in the eastern part of the country with more than 3900 employees. Our goal is to proactively find new ways to improve and continuously transform into a company providing innovative information and communication technology services.
Job Description
Purpose
Senior DevOps Engineer is responsible for the entire lifecycle of Continuous Integration/Continuous Deployment pipelines and Infrastructure as Code approaches. The role defines automated configuration management, release management, build, test and deployment activities, and provides prototypes and concepts for further automation of assigned technology.
Project Introduction
Join our International Team and help us create greenfield software for one of the biggest and most important projects in Deutsche Telekom Group. Being part of our team, you will impact our 30 million customers who will use our product to request fiber network installations and to track our progress.
Our product is a set of applications and websites supporting end-to-end processes covering fiber pre-ordering, ordering, installation, service management, and customer support.
Your role as IAM DevOps engineer
You will develop and operate Keycloak/RHSSO-based IAM capabilities on Kubernetes, enabling secure SSO and machine-to-machine access for internal products. You will support team development by standardizing deployment, configuration, and troubleshooting practices, continuously improving reliability, security, and automation around the IAM platform.
Your profile
- At least 3 years of work experience as a DevOps/Platform Engineer (or SRE) with hands-on Kubernetes operations in production environments.
- Solid understanding of OAuth 2.0 and OpenID Connect concepts for modern IAM integrations and SSO flows.
- Practical experience with GitOps delivery using Argo CD for Kubernetes.
- Experience working with containers (Docker) and CI/CD pipelines (e.g. GitLab) from commit to production.
- Comfortable scripting in Python and Bash for automation and troubleshooting tasks.
IAM, Keycloak & Troubleshooting
- IAM fundamentals: authentication vs authorization, identity lifecycle and provisioning flows, role/permission model design, user types, and machine-to-machine concepts.
- Keycloak/RHSSO: hands-on experience with realms, clients, roles, scopes, identity providers, and themes, including troubleshooting authentication and authorization flows end-to-end.
- Configuration-as-code mindset for Keycloak: managing realms, clients, and roles via versioned configuration and promoting changes across environments.
- Operability: diagnose and resolve platform issues (CPU/memory pressure, pod health, configuration errors), contribute to incident response, and support upgrades and migrations.
Cloud, DevOps & Containerization
- Kubernetes & networking: experience with deployments, services, ingress, environment-specific configuration, and secure handling of secrets/config maps.
- Packaging & delivery: Helm charts and Argo CD application management, including Helm-based deployments through Argo CD for GitOps workflows.
- Experience in CI/CD using GitLab, including building, testing, and deploying containerized workloads.
- Infrastructure as Code (IaC) approach for managing environments and application infrastructure.
- Observability: experience with Grafana/Prometheus, ELK stack, and basic Dynatrace usage for monitoring, alerting, and troubleshooting.
Database & Persisitence Layer
- Experience with PostgreSQL in operational contexts (backups and restore, performance indicators, connection troubleshooting).
- General understanding of how Keycloak and IAM components rely on Postgres and common failure modes.
Security & Performance
- Experience with OAuth 2.0, OpenID Connect, and JWT-based authentication for Keycloak integrations.
- Understanding of TLS/certificates and secure exposure of IAM endpoints.
- Experience using monitoring and load-testing tools (e.g. Prometheus/Grafana, JMeter) to observe performance, capacity, and stability.
WHAT WILL YOU DO?
- Design, develop, test, and implement infrastructure for CI/CD pipelines and IaC.
- Manage source code, configuration management, release management, build, and deployment activities.
- Set up and manage integration with partner applications.
- Conduct performance analyses, tuning, error analyses, and troubleshooting.
- Consult and implement innovative technologies to satisfy the innovation strategy.
- Create concepts for further automation of services, processes, and/or operating models.
- Directly support project teams in development, quality assurance, and planning and implementing product releases.
- Continuously optimize the development and system infrastructure.
- Provide consulting to project teams on areas of expertise and prototype proof-of-concept solutions.
- Research and develop in assigned technology, determine business requirements, propose changes, and prepare implementation plans.
Qualifications
YOU WILL SUCCEED IF YOU:
Technology stack:
- Keycloak / RHSSO / RHBK, OAuth2, OpenID Connect, JWT.
- Kubernetes, Docker, Ingress, Helm, Argo CD.
- Git, CI/CD (GitLab), GitOps.
- Python, Bash (plus Go/Java as a plus for automation and extensions).
- Grafana, Prometheus, ELK, Dynatrace.
- PostgreSQL.
- AWS and other cloud platforms (as a plus).
- Have secondary education in Information Technologies – Master
- Have 4 years of experience with ICT systems
- Have expert-level experience with scripting (Bash, Python)
- Have expert-level experience with Linux operating systems
- Have intermediate experience with OTC/AWS/Azure
- Have expert-level experience with Docker
- Have advanced experience with Kubernetes/OpenShift
- Have expert-level experience with Git
- Have advanced experience with Jenkins/GitLab
- Have intermediate experience with Maven/Gradle
- Have advanced experience with Ansible/Terraform/Puppet
- Have advanced experience with ELK/Prometheus/Icinga/Jaeger/Grafana
- Have expert-level experience with networking
- Have advanced experience with security
- Are communicative, a team player, and possess analytical thinking, training skills, and presentation skills
- Speak English – Upper intermediate (B2)
- Have experience with Agile methodologies, Scrum, and SAFe
Additional Information
WHY SHOULD YOU CHOOSE US?
We believe in balance between work and personal life. An attractive and extensive work-life balance portfolio guarantees lasting motivation for employees, promotes physical and mental well-being, and contributes to a positive work environment. This provides more freedom in reconciling work, career growth, private life, and individual lifestyle. We offer over 25 different benefits to improve our employees' personal and professional lives.
- Financial Benefits
- Benefits With Focus On Learning And Development
- Benefits With Focus On Health And Sport
- Benefits With Focus On Family And Work – Life Balance
- Other Benefits
For more information about our benefits click to Benefits
Salary
Final salary is negotiable. We are offering a base salary depending on seniority and previous experience. In addition to the base salary, we provide a variable part and other financial benefits. The base salary will not be lower than 2600€ /brutto.
Additional information
* Please be informed that our remote working possibility is only available within Slovakia due to European taxation regulation.
Source: weworkremotely
Published: 2026-02-12 15:40:38
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