Senior DevSecOps Engineer

In this Senior DevSecOps Engineer role, you design, build, secure, deploy and operate mission-critical systems for a leading telecoms provider in London. You will work within a cross-functional team to harden platforms, automate infrastructure, and manage resilient, production-grade environments. The role emphasizes security, compliance, and reliable operations across geo-redundant datacenters, Kubernetes/OpenShift, and platform services. You’ll influence security posture and incident response while shaping scalable CI/CD pipelines and live systems.

• Security & DevSecOps: harden OS/container/app layers to UK security standards; actively manage SELinux in enforcing mode; integrate SAST, dependency and image scanning into CI/CD; participate in incident response and root-cause analysis.
• Core Platform: build and operate hardened RHEL across geo-redundant datacenters; automate with Ansible/Bash/Python; design and troubleshoot CI/CD pipelines beyond templates; operate Kubernetes/OpenShift; run Pacemaker/Corosync clusters and diagnose split-brain, fencing, quorum; configure HAProxy in active/active and active/passive; design platform-level routing with BGP/BFD; design and implement RESTful APIs in Go and Python.

• In-depth commercial experience in a production DevSecOps/Platform role; strong Red Hat Enterprise Linux experience; production Go and Python backend development; Kubernetes or OpenShift operational responsibility; experience in regulated, audited or mission-critical environments; eligibility for UK right to work without sponsorship and SC clearance.

• Red Hat Enterprise Linux
• Ansible
• Bash
• Python
• Go
• Kubernetes