Ayodele Ajayi
Principal Engineer · Home Office
Summary
Principal Engineer based in Kent, UK, working on security governance and cloud architecture at national scale at the Home Office. Over ten years in engineering across information security, cloud, DevSecOps, platform engineering, and AI, building secure, reliable systems that serve millions of people and mentoring the teams that run them.
Skills
Cloud & Infrastructure
AWS · Azure · GCP · Kubernetes · Docker · ECS · EKS · AKS · Terraform · CDK
Security & Governance
ISO 27001 · NIST · SOC 2 · Zero Trust · IAM · OWASP · TFSec · Snyk · Trivy
DevOps & Automation
Jenkins · GitLab CI · GitHub Actions · ArgoCD · Ansible · Helm · Flux · Pulumi
Languages & Frameworks
Python · TypeScript · Go · Bash · React · Next.js · Node.js · PostgreSQL
Platform & SRE
Backstage · Prometheus · Grafana · ELK · Datadog · OpenTelemetry · Chaos Engineering
AI & Data
GenAI · LLMs · MLOps · RAG · Prompt Engineering · Data Pipelines · ETL
Areas of Practice
Security & Governance
ISO 27001, NIST, Zero Trust, and compliance frameworks at national scale.
Cloud Architecture
Multi-cloud solutions across AWS, Azure, and GCP with IaC best practices.
DevSecOps
Shift-left security in CI/CD pipelines, SAST/DAST automation, and container scanning.
Platform Engineering
Internal developer platforms, Kubernetes, Backstage, and SRE practices.
AI & Emerging Tech
GenAI adoption, MLOps pipelines, LLMOps, and responsible AI governance.
Technical Leadership
Mentoring teams, shaping engineering culture, and driving SDLC transformation.
Experience
Principal Engineer · Solirius Reply
November 2023 - Present
- Leading technology strategy and governance at the Home Office, establishing security frameworks and compliance standards that achieved 100% audit compliance
- Architecting end-to-end solutions spanning infrastructure, security, and application layers, implementing best practices across the full software development lifecycle
- Establishing security governance aligned with government standards, implementing zero-trust architecture and comprehensive access control policies
- Spearheading DevSecOps transformation, integrating security into CI/CD pipelines and achieving 90% reduction in vulnerabilities through shift-left practices
- Mentoring engineering teams on software architecture, security best practices, and emerging technologies whilst fostering a culture of continuous learning
Senior DevSecOps Engineer · Vault Platform
July 2022 - December 2023
- Designed secure cloud architectures on AWS with focus on data protection and compliance, achieving SOC 2 readiness
- Architected Kubernetes-based platforms with security-first approach, achieving 99.9% uptime and 100% compliance
- Implemented comprehensive security policies and governance frameworks, including IAM strategies and least-privilege access controls
Senior DevOps Consultant · ContainerCode Club
July 2019 - Present
- Providing strategic technology consultancy covering cloud architecture, security, governance, and digital transformation
- Designing and implementing end-to-end solutions from architecture through deployment, following SDLC best practices
Lead DevOps Engineer · eConsult Health
October 2021 - June 2022
- Led Linux-based AWS application hosting, improving system performance by 20%
- Set up ECS using CDK and CloudFormation, managed PaaS and serverless functions
Senior DevOps Engineer · Doctor Care Anywhere
March 2021 - December 2021
- Managed and optimised Azure Kubernetes platforms, implementing security best practices to achieve a 99.95% compliance rate
- Developed and maintained CI/CD pipelines for Azure and AWS, reducing deployment time by 30%
Site Reliability Engineer · Rank Group
March 2020 - March 2021
- Implemented CI/CD pipelines and automated testing, boosting deployment frequency and reliability
- Managed Jenkins pipeline deployments into Docker Swarm clusters within secure AWS environments
DevOps Engineer · Adjoint Inc.
August 2019 - March 2020
- Orchestrated CI/CD processes using GKE, Docker, and GitOps, streamlining deployment workflows
Customer Support Engineer · OpenAsset
January 2018 - August 2019
- Resolved complex IT and digital asset management issues, providing high-quality customer support
System Analyst · Indivior PLC
March 2016 - January 2018
- Managed Windows applications, MDM, and OS deployment, ensuring seamless operation and user support
IT Analyst · SC Johnson Ltd.
August 2015 - February 2016
- Managed Windows applications, Mobile Device Management, and OS deployment
Certifications
- Azure Solutions Architect Expert · Microsoft2024
- DevOps Engineer Expert · Microsoft2024
- Azure Administrator Associate · Microsoft2024
- Solutions Architect - Associate · Amazon Web Services2023
- Terraform Associate · HashiCorp2022
- Azure AI Fundamentals · Microsoft2022
Selected Work
19 hands-on courses across 5 learning paths, taking readers from working knowledge to production competence in cloud, security, and platform engineering.
55+ in-depth articles on cloud architecture, DevSecOps, platform engineering, and AI, written from production experience.
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