Autor: christianschlundt

At a glance

• Permanent full-time position
• Immediate start
• Location: Munich north, Germany
• On-site role due to security requirements
• Focus: Unix/Linux, Red Hat Enterprise Linux, secure IT operations
• Security clearance required or willingness to go through the process

Your role

In this position, you will support the operation, administration, and continuous improvement of Unix/Linux-based systems, primarily in Red Hat environments.

Your responsibilities include:

• Administer Unix/Linux-based operating systems, including troubleshooting, installation and setup.
• Maintain compliance with security policies, including patch management and vulnerability remediation.
• Perform backups and recovery using tools such as Netbackup.
• Basic hardware management including racking, card/disk replacements, attaching to network(s), etc.
• Installing third party software following provided instructions.
• Document architecture, procedures, and operational guidelines for system administration.

• Willingness to learn and acquire new skills (including acquiring relevant certifications).
• Willingness to work in a rotation system (to cover the service hours) and to work outside working hours (usually one Saturday per month).

Your profile

• Strong expertise in Unix/Linux system administration (RHEL8, RHEL9, or similar).
• Strong troubleshooting skills for Unix/Linux systems.
• Working with ticket system for incidents, problems, change management and configuration management.
• Certifications such as RHCE (Red Hat Certified Engineer), or similar is an advantage.
• Good knowledge of English—spoken and written.

Nice to have

• IT related Bachelor or Master degree
• Knowledge of ITIL
• Ability to Shell Script
• Knowledge of Container Technolog, especially Rancher
• VMWare/KVM knowledge
• Windows Server knowledge

What makes this role special

This is not just another system administration role.

You will work in an environment where your contribution has real impact: systems need to be secure, available, well-maintained, and compliant. Your work helps ensure that critical IT infrastructures remain stable and trustworthy.

At the same time, you will have the opportunity to deepen your technical knowledge, gain experience in high-security environments, and develop further through targeted training and certifications.

What we offer

• Permanent employment in a stable, owner-managed German IT company
• Competitive salary and performance-based bonus
• Work on high-security IT and cybersecurity-related projects
• Individual training and development, including certification opportunities
• German courses, if needed
• Relocation support
• Meal allowance through our on-site cafeteria
• Sports and fitness benefits, including company football every two weeks
• A working environment based on trust, responsibility, and long-term cooperation

Important information

Due to the sensitive nature of our projects and the compliance requirements of our stakeholders, this position is fully on-site in the north of Munich. Remote work is not possible.

A security clearance is required. Candidates should either already have the necessary clearance or be willing to go through the process.

Hiring process

Initial remote interview > On-site interview in Munich > Offer > Security clearance process

How to apply

Apply easily — no cover letter required.

Please send us: your CV (in English), earliest possible start date, salary expectations, relevant certificates, if available

No applications from staffing or recruitment companies accepted.

Contact: Doris Böhner | +49 (0)89 660393-0 | jobs@datawh.de

About Data-Warehouse GmbH

Data-Warehouse GmbH is an owner-managed German IT company with 35+ years of experience in cybersecurity, information management, software development, and process optimization.

We deliver solutions for high-security environments and combine technological excellence with long-term project expertise.

We support people who take on responsibility, expand their knowledge, and want to develop innovative IT solutions together with us — in an environment where trust, personal responsibility, and a genuine handshake count.

Tasks:

• Deploy, configure, and maintain Rancher-based container platform in an air-gapped environment. 
• Manage Kubernetes clusters, nodes, and workloads within the Rancher ecosystem. 
• Administer Unix-based operating systems, including performance tuning and troubleshooting. 
• Implement security hardening practices for containerized environments and Unix servers. 
• Automate system and container operations using scripting languages such as Ansible. 
• Ensure high availability, fault tolerance, and disaster recovery for containerized workloads. 
• Design and implement monitoring, logging, and alerting solutions for both Rancher and Unix infrastructure. 
• Collaborate with DevOps and development teams to support CI/CD pipelines and deployment workflows. 
• Maintain compliance with security policies, including patch management and vulnerability remediation. 
• Document architecture, procedures, and operational guidelines for system administration. 

Requirements/Knowledge/Experience:

• Proven experience in Rancher container orchestration and Kubernetes administration. 
• Strong expertise in Unix/Linux system administration (RHEL8, RHEL9, or similar). 
• Knowledge of air-gapped deployments and best practices for secure environments. 
• Proficiency in infrastructure automation using Ansible, Terraform, or similar tools. 
• Hands-on experience with monitoring tools such as Prometheus, Grafana, or Loki. 
• Strong troubleshooting and performance tuning skills for both containers and Unix systems. 
• Familiarity with container security tools and practices. 
• Experience working with containerized databases and persistent storage solutions.
• Experience with version control and CI/CD pipelines (Git, Jenkins, ArgoCD, etc.). 
• Certifications such as CKA (Certified Kubernetes Administrator), RHCE (Red Hat Certified Engineer), or similar is an advantage.
• Understanding of SIEM tools and security event monitoring focused on containers is an advantage. 
• Working with ticket system for incidents, problems, change management and configuration management.

• Strong background in IT (working in IT).
• IT related Bachelor or Master’s degree is a plus.
• Any knowledge of ITIL would be useful.
• Knowledge of DNS and load balancers.
• Good Unix/Linux knowledge.
• Knowledge of BMC Helix would be nice to have.
• VMWare knowledge would be nice to have.
• The candidate should also be able to speak and write in English.
• Security check (Ü2) available or willing to go through the process to acquire it.

• Willingness to learn and acquire new skills (including acquiring relevant certifications).

Willingness to work in a rotation system (to cover the service hours) and to work outside working hours (usually one Saturday per month)

Your Soft Skills:

High team spirit

Reliability, punctuality

Our offer:

We offer a safe, trustful and long-term working environment with very good working conditions in an exciting working environment

Company fitness and other company events

Clear and open internal communications and fast decisions

Cultural and international mixture of leading experts in their areas

Highly innovative environment with a personal development plan

We look forward to welcoming you to our team and shaping the future.

Contact person: Doris Böhner, d.boehner@dwh.gmbH, Phone 089 660393-17

Das bringst du fachlich mit

• erfolgreich abgeschlossene kaufmännische Ausbildung, ein Studium oder eine vergleichbare Qualifikation
• mehrere Jahre Berufserfahrung im Bereich Assistenz/Backoffice
• gutes IT Know-how und Interesse an digitalen Tools – von MS-Office zu Kollaborations-Tools
• sehr gute Deutsch- und Englischkenntnisse in Wort und Schrift

Was uns darüber hinaus wichtig ist

• ausgeprägte Organisations- und Koordinationsfähigkeit
• proaktive, gewissenhafte und eigenverantwortliche Arbeitsweise
• Hands-on-Mentalität und die Bereitschaft, aktiv mit anzupacken
• Lösungsorientierung mit einer Portion Pragmatismus

Das erwartet dich

• ein unbefristetes Arbeitsverhältnis in einem wachsenden Unternehmen
• kurze Kommunikationswege
• flexible Einteilung der Wochenstunden, z. B. 4-Tage-Woche möglich
• 30 Tage Urlaub (bei 4-Tage-Woche anteilig)
• Firmenfitness (Wellpass), betriebliche Altersvorsorge

Bitte beachten: Aufgrund der Compliance-Anforderungen unserer Kunden ist eine Arbeit im Homeoffice nicht möglich. Darüber hinaus ist eine Sicherheitsüberprüfung Ü2 erforderlich. Das entsprechende Verfahren wird von uns angestoßen.

Klingt interessant?

Dann bewirb dich jetzt – gerne ohne Anschreiben, aber bitte mit Lebenslauf, frühestem Eintrittstermin und Gehaltsvorstellung.

Bitte keine Bewerbungen von Personal- oder Vermittlungsagenturen!

………………….

Die Data-Warehouse GmbH ist ein inhabergeführtes IT-Systemhaus mit über 35 Jahren Erfahrung in sicheren und intelligenten IT-Lösungen „Made in Germany“. Wir verbinden technologische Exzellenz mit langjähriger Projekterfahrung in Cyber-Security, Informationsmanagement, Softwareentwicklung und Prozessoptimierung – unter anderem in anspruchsvollen Hochsicherheitsumgebungen.

Wir fördern Menschen, die Verantwortung übernehmen, ihr Wissen erweitern und uns darin unterstützen, innovative IT-Lösungen zu entwickeln.

Your Role

You will support a major database migration project from SAP HANA to PostgreSQL in a high-security IT environment.

Your main responsibilities will include:

• Analyze existing SAP HANA database structures, views, procedures, and SQLScript logic
• Design and implement PostgreSQL schemas, tables, views, functions, and stored procedures
• Support the migration of database logic from SAP HANA / SQLScript to PostgreSQL / PL/pgSQL
• Develop and test migration scripts, data transformation logic, and validation routines
• Optimize SQL queries, indexes, and PostgreSQL database performance
• Document technical decisions and migration steps clearly and reliably

Your Tech Stack & Experience

You should bring solid experience in database development and migration projects, especially in several of the following areas:

• Strong SQL and PostgreSQL experience
• PL/pgSQL, stored procedures, functions, triggers, or comparable database-side programming
• Database design, data modelling, schema development, and performance tuning
• Data migration, ETL, transformation logic, and data validation
• Linux-based environments and Git or comparable version control systems
• Experience with reporting solutions, preferably based on open-source tools

A strong plus would be experience with:

• SAP HANA, SAP HANA SQL, SQLScript, calculation views, or generated SAP HANA views
• Migration from SAP HANA, Oracle, SQL Server, DB2, or other enterprise databases to PostgreSQL
• Proxmox or virtualized infrastructure environments
• High-security, regulated, public-sector, aerospace, defense, or mission-critical IT environments

What We Are Looking For

We are looking for experienced database professionals who understand that migration is not only about moving data, but also about preserving logic, performance, reliability, and business-critical functionality.

You are a good fit if you:

• Have a strong database engineering mindset
• Can analyze complex source systems and translate them into robust PostgreSQL solutions
• Work carefully, independently, and with a strong sense of responsibility
• Communicate clearly with technical stakeholders
• Are willing to work on-site due to project security requirements
• Are eligible to work in a high-security project environment

Important notice!

Due to the sensitive nature of the project, candidates must have citizenship of an EU or NATO member state and must hold a German extended security clearance Ü2.

Further, due to the sensitive nature of the projects and the compliance requirements of the stakeholders, working from home is not an option.

What We Offer

• Competitive salary
• Permanent employment in a stable, growing company
• Work on high-impact security projects
• Individual training and development, including German courses
• Career growth opportunities
• Relocation support
• Sports & fitness benefits, including company football every two weeks
• A professional environment where quality, reliability, and trust matter

Hiring Process

Initial remote interview > On-site interview in Munich | Offer

No applications from staffing or recruitment companies accepted.