System Administrator

Location: London / Warsaw / Paris / New York

Employment Type: Full-time

Department: IT Operations / Infrastructure

About the role

We are looking for a proactive and technically capable System Administrator to manage, maintain, and enhance our clients’ IT systems and server environments. This role is key to ensuring system availability, security, and performance across on-premises and cloud platforms.

You’ll work closely with infrastructure, security, and application teams to support day-to-day operations, implement improvements, and respond effectively to incidents.

Key responsibilities

  • Administer and support Windows and/or Linux server environments

  • Manage user accounts, permissions, and access controls (AD, Azure AD, LDAP)

  • Monitor system performance, availability, and capacity

  • Perform system builds, upgrades, patching, and configuration management

  • Troubleshoot and resolve server, application, and OS-level issues

  • Support backup, recovery, and business continuity processes

  • Maintain system documentation and operational procedures

  • Participate in change management, incident response, and on-call rotations

  • Work with vendors and internal teams to deliver infrastructure projects

Required skills & experience

  • Experience with cloud platforms (Azure, AWS, GCP)

  • Knowledge of scripting or automation (PowerShell, Bash, Python)

  • Familiarity with configuration management tools (Ansible, Puppet, SCCM)

  • Understanding of security best practices and compliance frameworks

  • Relevant certifications (Microsoft, Red Hat, VMware, CompTIA)

Desirable skills

  • Experience with cloud or hybrid environments

  • Knowledge of virtualisation platforms (VMware, Hyper-V, etc.)

  • Understanding of ITIL processes

  • Vendor certifications (e.g. Cisco, HPE, Dell, CompTIA)

What we offer

  • Competitive salary and benefits package

  • Training and certification support

  • Opportunities to work with modern technologies and hybrid environments

  • Collaborative, technically focused team culture

How to apply

Please email your CV and a brief cover letter outlining your experience and interest in the role.