Systems Administrator

Beschreibung:

Are you ready to revolutionise the world with TEKEVER?
At TEKEVER, we lead innovation in Europe as the European leader in unmanned technology, where cutting-edge advancements meet unparalleled innovation.
Digital | Defence | Security | Space
We operate across four strategic areas, combining artificial intelligence, systems engineering, data science, and aerospace technology to tackle global challenges - from protecting people and critical infrastructure to exploring space.
We offer a unique surveillance-as-a-service solution that delivers real-time intelligence, enhancing maritime safety and saving lives. Our products and services support strategic and operational decisions in the most demanding environments - whether at sea, on land, in space, or in cyberspace.
Become part of a dynamic, multidisciplinary, and mission-driven team that is transforming maritime surveillance and redefining global safety standards.
At TEKEVER, our mission is to provide limitless support through mission-oriented game-changers, delivering the right information at the right time to empower critical decision-making.
If you're passionate about technology and eager to shape the future - TEKEVER is the place for you.

The Mission:
We are looking for a Systems Administrator to take ownership of core infrastructure and platform operations, with a focus on our on-premise environments. This role is responsible for ensuring systems are stable, secure, and consistently configured, enabling both engineering and security functions to operate effectively.

You will work closely with internal security teams and a co-managed MSP to implement and maintain infrastructure, enforce configuration standards, and ensure security controls are applied effectively. The role includes responsibility for Windows Active Directory domain services, virtualisation platforms, network infrastructure, and supporting systems associated with product development.
Role and Responsibilities:
* Maintain and administer core infrastructure across Windows, Linux, and virtualised environments
* Manage and maintain Active Directory, including users, groups, GPOs, and domain services
* Design, implement, and maintain Group Policy Objects (GPOs) to enforce security baselines and configuration standards
* Provision and manage virtual machines using VMware (or similar platforms)
* Configure and maintain network infrastructure, including firewalls (e.g. Cisco) and related services
* Own system configuration, ensuring consistency, stability, and enforcement of defined standards
* Implement and maintain patching processes, leveraging automation where possible
* Manage user accounts, permissions, and access controls, supporting least privilege principles
* Implement and maintain security controls defined by the security team (e.g. logging, hardening, access restrictions)
* Ensure systems generate appropriate logs and telemetry to support monitoring and investigation
* Work with DevSecOps and Security Engineering to support secure configuration of platforms and services
* Support incident response by executing containment and remediation actions (e.g. isolating systems, disabling access)
* Act as the primary interface with the MSP, ensuring work is aligned with internal requirements and standards
* Ensure infrastructure changes are implemented in a controlled and auditable manner
* Identify and resolve configuration drift, reliability issues, and gaps in system management
* Continuously improve automation, tooling, and operational efficiency
Skills & Experience
* Experience working in a systems administration or platform engineering role (typically 2-5 years or equivalent practical experience)
* Strong working knowledge of Windows Server environments and Active Directory (including GPO design and management)
* Experience with virtualisation platforms (e.g. VMware) and VM provisioning
* Strong understanding of networking fundamentals (e.g. DNS, routing, firewalls), including practical experience with network configuration (e.g. Cisco)
* Working knowledge of Linux systems
* Experience managing identity and access (e.g. Active Directory, IAM, or similar)
* Experience implementing patching, system hardening, and baseline configuration
* Ability to script or automate tasks (e.g. PowerShell, Bash, Python)
* Understanding of security fundamentals and system-level risks
* Experience working with or alongside managed service providers is advantageous
* Strong problem-solving ability and attention to detail
Additional Context
This role provides the operational backbone for the organisation's infrastructure, with a focus on our on-premise systems and services. It ensures that systems are correctly configured, maintained, and aligned with security requirements, enabling effective monitoring, detection, and response.

The role operates alongside a co-managed MSP, retaining internal ownership of standards and outcomes while leveraging external support for scale.

What we have to offer you:
* An excellent work environment and an opportunity to make a difference.
* Salary commensurate with level of experience.
* Company pension contribution matched up to 10%.
* 25 days annual holiday + 8 Bank holidays.
* Medical Insurance.
* Dental Insurance.
* Salary sacrifice initiatives (EV Scheme, Cycle 2 Work, Tech Scheme)
* Discretionary annual company bonus.
Do you want to know more about us ?
Visit our LinkedIn page at https://www.linkedin.com/company/tekever