Polarstern Experts -  IT Personalberatung

Backend Engineer

• You design, develop and independently implement sophisticated Java-based applications
• As part of quality assurance, you also test the IT applications you develop
• You drive the redesign of existing applications and contribute to the further development and improvement of current systems

Senior Java Backend Developer – Healthcare, in-house, 60% remote

Cloud Engineer

• Entwicklung und Optimierung der AWS Cloud Infrastruktur mit Schwerpunkt auf Terraform
• Sicherstellung von Sicherheit, Hochverfügbarkeit und Performance in verteilten Cloud- und On-Premise-Umgebungen
• Betrieb, Monitoring und Optimierung in Bezug auf Kosten, Performance und Sicherheit

Cloud Engineer, IaC, AWS

• Plan, implement and operate modern network infrastructures in the AWS Cloud — including Infrastructure-as-Code with Terraform, Terragrunt and Git
• Develop and enhance automation and scripting solutions for efficient provisioning and management of network environments
• Configure, administer and harden network components, with particular focus on FortiOS, Palo Alto and Barracuda
• Ensure network security, high availability and performance in hybrid, complex cloud and on‑premises environments
• Collaborate closely with cross‑functional teams and perform analysis and troubleshooting to continuously improve security, stability and performance

Cloud Engineer – AWS Network, On-site, 80% remote

Systems Engineer

• Support internal IT operations and optimize the email infrastructure based on Exchange Online, including email security
• Deploy and maintain Windows servers as well as manage identity and access using Active Directory / Entra ID
• Contribute to the design of the existing and future network architecture (firewall, switch and Wi‑Fi) and monitor network performance and availability
• Independently analyze and resolve 2nd- and 3rd-level issues in a solution-oriented manner

Senior System Engineer – In-house IT

DevOps Engineer

• Help design and operate the infrastructure for VM-based apps and services
• Use modern tech stacks and Dev/AI tools
• Develop internal standards, good/best practices and paved/golden paths
• Collaborate and exchange knowledge across team boundaries
• Freedom to bring your own ideas

DevOps Engineer – AWS Cloud Infrastructure, in-house, 80% remote

• Design, implementation and management of infrastructure in AWS with a focus on Terraform
• Development and optimization of cloud infrastructure
• Ensuring security, high availability and performance in distributed cloud and on‑premises environments
• Analysis and troubleshooting of network and connectivity issues

AWS Cloud Engineer – In-house position, up to 80% remote

• Support internal IT operations and optimize the email infrastructure based on Exchange Online, including email security
• Provision and maintain Windows Servers and manage identity and access via Active Directory and Entra ID
• Contribute to the design of existing and future network architecture (firewalls, switches, and Wi‑Fi) and monitor network performance and availability
• Independently analyze and resolve 2nd- and 3rd-level issues in a solution-oriented manner

Senior System Engineer – Inhouse IT

• Design and operation of infrastructure for VM-based applications and services
• Use of modern tech stacks and Dev/AI tools
• Development of internal standards, good/best practices and paved/golden paths
• Collaboration and knowledge-sharing across team boundaries
• Freedom to pursue your own ideas

DevOps Engineer, AWS Cloud Infrastructure – In-office / up to 80% remote

• Design, Aufbau und Betrieb moderner Azure-Cloud-Infrastrukturen
• Migration bestehender On-Premise-Systeme in die Azure Cloud
• Automatisierung von Deployments (z. B. mit Terraform)
• Betrieb, Monitoring und Optimierung von Cloud-Umgebungen (Kosten, Performance, Sicherheit)
• Umsetzung von Security- und Compliance-Anforderungen
• Enge Zusammenarbeit mit dem DevOps-, Entwicklungs- und IT-Betriebsteam
• Unterstützung bei Architekturentscheidungen und Cloud-Strategien