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83zero Ltd

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Principal DevSecOps Engineer - London

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Description

Salary: £110,000 - 125,000 per year

Requirements:
  • Experienced DevSecOps Lead or Principal Engineer with strong hands-on engineering and technical leadership experience
  • Experience with CI/CD and GitOps tools, including GitHub Actions, Argo CD and Argo Rollouts
  • Experience with security and compliance tools and practices, including Trivy, vulnerability management, HashiCorp Vault and cert-manager
  • Experience with containers and cloud technologies, including Docker, AWS EKS, AWS IAM, S3 and network policies
  • Experience with Terraform for Infrastructure as Code
  • Experience with Grafana and Loki for observability
  • Experience with Python and Bash automation
  • Experience delivering within the UK Government Digital Service (GDS) lifecycle on a public sector engagement
  • Security Check (SC) clearance and eligibility, including continuous UK residency for the last five years
  • Sole UK national
Responsibilities:
  • Design and continuously improve secure, automated CI/CD and GitOps pipelines
  • Embed security scanning, vulnerability management and secrets management into delivery workflows
  • Establish secure-by-design engineering practices and enforce security and technical standards
  • Lead Infrastructure as Code (IaC) practices across teams and environments
  • Drive observability, monitoring, logging and audit controls
  • Support incident response, patching, compliance reporting and technical debt remediation
  • Partner with developers and delivery teams to improve engineering quality and security
  • Document security processes, controls and operational runbooks
  • Provide technical leadership and help establish effective DevSecOps ways of working
Technologies:
  • AWS
  • Bash
  • CI/CD
  • Cloud
  • DevSecOps
  • Docker
  • GitHub
  • GitOps
  • Grafana
  • IAM
  • Support
  • Network
  • Python
  • Security
  • Terraform
  • DevOps

More:

We are hiring a Principal DevSecOps Engineer for a permanent role based in London, with hybrid working requiring three days per week on-site. The role supports complex, high-impact technology transformation programmes and offers a salary of £110,000–£125,000, a 5–10% bonus, pension and benefits. We provide learning and development opportunities, professional certifications and the opportunity to shape DevSecOps practices across a growing technology environment.

last updated 44 week of 2026

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