This is a remote position. Infrastructure Domain Architecture – Security (PID0644) Infrastructure / Security | Contract / Freelance Contract / Freelance Full-time Remote with travel readiness required (Germany) Start: 01.07.2026 About the role We are seeking a Junior Infrastructure Security Engineer to join the Infrastructure Security sub-group of a large internal platform programme in the energy sector. You will advise on and deliver security infrastructure in line with architectural and operational requirements, with a focus on datacenter security, firewall management, DNS hardening and security delivery automation. What you'll be doing Developing detailed security deployment plans covering implementation phases, resources and timelines Installing and configuring security solutions in line with defined security standards and best practices Maintaining thorough documentation of the security environment including configurations, protocols and decision justifications Continuously validating implementation processes for effectiveness and alignment with organisational goals Identifying discrepancies or inefficiencies in processes and proposing corrective actions

Requirements

What you'll need Good experience with datacentre security, VLAN, VPN and remote access solutions Good hands-on experience with firewalls for ACLs, VPNs and IPS/IDS Experience in vulnerability management, security patching and CIS hardening of firewall and DNS devices Good experience with Infoblox Grid solutions, DNS RFC standards, DNS internet-facing hardening and security Experience developing and supporting new security and access products alongside architecture teams Security delivery automation with Ansible, with ability to align with software development teams using Python Fluent English (C1 minimum) Desirable Experience with Jira, Confluence and Miro or similar tools Linux knowledge (basic) VMware (basic), LDAP, OIDC, OAuth, PKI certificates

Benefits

As a freelancer / contractor with us, you will enjoy flexible working hours and the freedom to choose your own projects. Our platform gives you access to exciting projects in various industries and supports you in advancing your career. You'll benefit from competitive pay and a dedicated team to help you with any questions you may have. Work independently and utilise our strong network to achieve your professional goals.