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Open to Platform/ML Infrastructure roles
Jolyon Brown
Platform Engineer
Production infrastructure, critical systems, and thirty years of keeping things running
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Each role includes queryable AI context—the real story behind the bullet points.
NHS England
Platform Engineer — National Healthcare Identity Infrastructure
- Production operations and incident response across AWS and Azure for national critical infrastructure
- Python API development for healthcare worker data systems serving hundreds of millions of daily transactions
- 24/7 on-call for systems where downtime is a national news story
TSYS
Unix Team Lead → Infrastructure Designer
- Led team supporting global payment platforms (Linux, AIX, Oracle) processing billions in transactions
- Designed and deployed FICO anti-fraud platform in Brazil for major financial institution
- 24x7x365 global on-call rotation, high-profile launches including O2 payment card
HBOS
Senior Technical Infrastructure Developer
- Led Intelligent Finance platform migration to HP Superdomes with full site resilience
- Built esure insurance platform with automatic failover via dark fibre
- Started as junior admin, left as the person they called when things got complicated
Linux Format Magazine
"Administeria" Column — Technical Writer
- Monthly sysadmin column for UK's bestselling Linux magazine
- Kubernetes coverage in 2015 (one year after K8s release), Prometheus in 2016
- Docker tutorials during early adoption, plus ELK Stack, AWS/Ansible, OpenStack, Ceph
Skills Assessment
STRONG
- Production Infrastructure & Operations
- AWS / Azure / Terraform
- Kubernetes / Docker / ECS
- Python (APIs, automation, tooling)
- CI/CD & GitOps
- Observability (Splunk, Prometheus, ELK)
- Incident Response & On-Call
- Technical Writing
MODERATE
- Databases (operational, not DBA)
- Chef / Ansible
- ML/AI Engineering (actively learning)
GAPS (I'LL TELL YOU)
- Frontend Development
- Traditional Enterprise Unix (Oracle/AIX)
- Java Development
- Rust / Zig (hobbyist interest)
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