Senior DevSecOps Engineer

An exciting opportunity for a Senior Dev Sec Ops  Engineer has arisen with a leading mission-critical telecommunications company, based in London.
The right to work in the UK without sponsorship is essential for this vacancy. Eligibility for SC clearance is also required.
Hybrid role - 3 days per week in the London office.
This is a senior, hands-on engineering role requiring an experienced Dev Sec Ops  and platform engineer who has operated complex systems in production.
You will personally design, build, secure, deploy, and operate mission-critical systems where downtime, misconfiguration, or security failures have real-world consequences.
This role will involve:
Security & Dev Sec Ops
Apply OS, container, and application hardening aligned with UK security standards.
Actively operate SELinux in enforcing mode.
Integrate SAST, dependency scanning, and image scanning into CI/CD pipelines.
Participate in incident response, root-cause analysis, and remediation.
Core Platform:
Build and operate hardened Red Hat Enterprise Linux platforms across geo-redundant data centres.
Automate infrastructure using Ansible, Bash, and Python ign and troubleshoot CI/CD pipelines well beyond template configuration.
Operate Kubernetes and Open Shift platforms, including security, networking, and failure recovery.
Run Pacemaker/Corosync clusters and diagnose split-brain, fencing, and quorum issues.
Configure HAProxy in active/active and active/passive configurations.
Design platform-level routing using BGP/BFD (FRR or equivalent).
Design and implement RESTful APIs in Go and Python used in live systems.
Key skills/experience required:
In-depth commercial expertise in a production Dev Sec Ops  / Devops / Platform role.
Strong, demonstrable Red Hat Enterprise Linux experience.
Production Go and Python backend development.
Kubernetes or Open Shift operational responsibility.
Experience in regulated, audited, or mission-critical environments.
If you are a Dev Sec Ops  Engineer looking to work in a high-impact, mission-critical environment, please apply today or contact Matt Andrews to learn more!