Platform Engineer - Windows or Linux - Contract - Outside IR35

Mindera; Greater London; Hybrid; GBP 100,000 - 125,000; Full time

Job summary

A technology company in Greater London is seeking experienced Platform Engineers for a contract role focused on security hardening and lifecycle upgrades across CCTV systems. Key responsibilities include performing operating system upgrades, applying firmware updates, and enhancing monitoring capabilities. Candidates should have strong experience with Windows or Linux, and a background in security hardening is essential. This position offers a competitive day rate and requires on-site work three days a week in Paddington or Heathrow.

Benefits

Competitive day rate

Qualifications

• Strong experience in infrastructure or platform engineering roles.
• Hands on experience with Windows and/or Linux operating systems.
• Proven background in security hardening, patch management, and access control.

Responsibilities

• Perform operating system upgrades and security patching on CCTV servers.
• Apply firmware updates and vendor recommended security fixes.
• Support discovery and documentation of existing CCTV configurations and dependencies.

Skills

Infrastructure engineering

Windows operating system

Linux operating system

Security hardening

Patch management

Access control

Cloud infrastructure

Monitoring and logging

Job description

Mindera is currently looking for Platform Engineers who are experience in either Windows or Linux to join us on a contract basis. You will be responsible for hands on deliver of the security hardening, stabilisation and lifecycle upgrades across the CCTV estate of our client. The role focusses on infrastructure, operating systems and security controls rather than application or user interface development.

This role comes with 3 days per week on client site in either Paddington or Heathrow area.

Key Responsibilities

Perform operating system upgrades and security patching on CCTV servers and supporting infrastructure

• Apply firmware updates and vendor recommended security fixes
• Remove shared credentials and implement secure identity and access controls
• Harden servers and services in line with enterprise security standards
• Support discovery and documentation of existing CCTV configurations and dependencies
• Implement and improve monitoring, logging and alerting integrated with security operations
• Support investigation and remediation of security and operational incidents
• Produce clear technical documentation and operational runbooks

Required Skills and Experience

• Strong experience in infrastructure or platform engineering roles
• Hands on experience with Windows and or Linux operating systems
• Proven background in security hardening, patch management and access control
• Experience working with cloud hosted and hybrid infrastructure
• Comfortable working with legacy and partially undocumented systems
• Experience operating across large distributed estates preferred
• CCTV or physical security platform experience desirable but not required

Competitive day rate