Platform Engineer - Windows or Linux - Contract - Outside IR35 Mindera is currently looking for Platform Engineers with experience in either Windows or Linux to join us on a contract basis. The role focuses on infrastructure, operating systems and security controls rather than application or user interface development. 3 days per week on client site in either Paddington or Heathrow area. 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.

Benefits: Competitive day rate. Seniority level: Mid‑Senior level. Employment type: Contract. Job function: Other. Industry: IT Services and IT Consulting. #J-18808-Ljbffr