Colin Keith
Platform Engineering Manager @Nominet
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WORK HISTORY
Platform Engineering Manager @Nominet
Oxford, GB
Leading team of five directly accountable for the stability and security of the Critical National Infrastructure (CNI) platform providing DNS for the NHS, HSCN, and PSN.* Key driver in planning and implementing the migration of the DNS platform for.uk and major gTLDs to an Edge platform to modernise and safeguard infrastructure with huge economic dependencies.* Strategised a platform rationalization programme to consolidate Kubernetes by 85% and reduce physical infrastructure footprint by 50%, with projected savings of £3m one-off and £500k per year.* Architecting a centralised service catalog of reusable infrastructure modules and platform tools to eliminate departmental silos and preventing the \"reinvention of the wheel\" across engineering teams.* Standardising deployment workflows by implementing CI/CD solutions to provide internal teams with \"golden path\" infrastructure-as-code (IaC) services.
EDUCATION
University of Kent
MPhys (Hons) Physics with Space Science and Systems, Physics
SKILLS
ABOUT COLIN KEITH
Strategic Technology Leader with over 20 years of experience in high-availability infrastructure and 7 years of engineering leadership. Expert managing Critical National Infrastructure (CNI) with a focus on stability, security, and operational excellence. Proven track record of architecting distributed systems and leading large-scale migrations that deliver significant cost and energy efficiencies. Passionate about applying deep technical knowledge in Linux, networking, and observability to the challenges of grid-scale renewable energy and smart infrastructure.Core Technical CompetenciesInfrastructure & CNI Strategy: Design of resilient, secure, large-scale physical and cloud environments; direct accountability for Critical National Infrastructure (CNI) platforms supporting nationally vital services including DNS for the NHS and PSN.Low-Level Systems & Networking: Advanced Linux administration and security expertise; hands-on experience with SSH, DNS, firewalls, and low-latency service optimization.Distributed Services & Observability: Architecture of highly available distributed systems across physical and cloud (OCI & AWS) infrastructure. Strategic implementation of Prometheus, Grafana, and Splunk for real-time monitoring and predictive maintenance of critical assets.Operational Excellence & Automation: Expert-level Infrastructure-as-Code (Terraform), configuration management (Puppet, Ansible), and Gitlab CI/CD pipeline automation to ensure reliability.Strategic Leadership: Management of multi-million pound budgets (OpEx/CapEx), long-term roadmap execution, and bridging technical delivery with executive stakeholder requirements.
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