Open to Forward Deployed Engineering & Agentic AI roles

Jolyon Brown

Forward Deployed Engineer

Thirty years of production operations, now building agentic AI that ships.

jolyon@limilo.com LinkedIn GitHub Ask your agent

Summary

An engineer with a DevOps background and thirty years of production operations experience across banking, healthcare, and payment systems. A natural tinkerer, I stay close to the leading edge of AI tooling - constantly trying new things out, building prototypes, and turning experiments into things that ship.

My career has spanned every scale, from founding my own consultancy to national critical infrastructure at NHS England, HBOS, and TSYS. I've led Unix teams and designed anti-fraud and payment architectures, but most of it has come down to the same thing: being dropped into something unfamiliar and making it work.

Most recently I've been a consulting engineer on Fusion (Enablis's agentic AI orchestration platform, built on AWS Bedrock AgentCore), where I built out the platform's MCP integration layers, and Tech Lead of a team building the next generation of healthcare worker APIs.

Much of my career has been in security-critical, regulated environments: secure banking infrastructure, PCI-compliant payment design, and identity and access management at NHS England.

Experience

  1. Enablis

    2026 - Present

    Consulting Engineer, Fusion

    via Limilo Ltd

    Augmented a small team building Fusion, Enablis's agentic AI orchestration platform, implementing the AgentCore-based system using Claude Code and Codex.

    • Built the platform's MCP integration layers, connecting Fusion to codebases, project management tools (Jira, Linear, GitHub Issues) and other MCP-compatible services
    • Implemented agent workflows on AWS Bedrock AgentCore with human-in-the-loop approval gates - the controlled, auditable execution that production and regulated environments need
    • Built out the platform's authentication (Google and Microsoft OAuth sign-in), strengthening access control for enterprise deployment

    AWS Bedrock AgentCore MCP OAuth Claude Code Codex

  2. NHS England (formerly NHS Digital)

    2014 - Present

    Platform Engineer & Tech Lead

    via Infinity Works (2014-2020), Mastek (2020-2022), BJSS/CGI (2022-present)

    Senior platform engineer on national healthcare identity and access management infrastructure. Ten years on the same critical system through three different consultancies. Started with on-premise Linux, Ansible and Microsoft SCVMM, migrated to AWS in 2021, and now work on both the AWS production system and its Azure-based replacement.

    • Tech Lead of a team building the next generation of healthcare worker APIs
    • Production operations and incident response for an identity and access management system that serves the entire NHS and cannot go down
    • 24/7 on-call, working across both infrastructure and application layers at national scale

    AWS (EC2 ECS RDS API Gateway Elasticache) Azure Linux Python Ansible Kubernetes HAProxy LDAP

  3. Limilo Ltd

    Sept 2011 - Present

    Founder & Director

    My consultancy, providing platform engineering and agentic AI development to clients across healthcare and finance.

    • Filter Integrity Limited (2020-present): infrastructure and web hosting support
    • Evince Technology (2019-2023): production support for critical Linux systems
    • Cendyn/RoundTableHQ (2014-2020): data centre migrations, AWS infrastructure, Chef automation, MySQL admin, PCI compliance, Ruby on Rails platform support
    • Future Publishing (2014-2017): technical author of Linux Format magazine's monthly Administeria column

  4. TSYS

    Sept 2008 - May 2014

    Senior Server Technician → Unix Team Leader → Infrastructure Solutions Designer · Knaresborough

    Payment processing infrastructure in a heavily regulated financial services environment. Progressed from Senior Server Technician to Team Lead to Infrastructure Designer over nearly six years.

    • Infrastructure Solutions Designer (2012-2014): technical solutions and infrastructure design for client projects. Led design of the FICO anti-fraud platform, deployed in Brazil. Internal presentations on DevOps and OpenStack
    • Unix Team Leader (2010-2012): led the Unix team supporting global payment processing (Linux, AIX, Oracle) - production support, code releases, PCI audit compliance, capacity planning, 24x7x365 on-call with customers across multiple continents
    • Senior Server Technician (2008-2010): prepaid card payment processing platform (Linux/JBoss/DB2). Involved in the O2 payment card launch
    • Certifications: ITIL Service Management, Project Management, Systems Design

  5. HBOS

    Sept 1999 - Sept 2008

    Senior Technical Infrastructure Developer · Leeds

    Nine years on the Unix technical support team providing 24x7 third-level support for banking infrastructure. Joined as a junior administrator, left as a senior technical expert - the person they called when things got complicated.

    • Led migration of the Intelligent Finance platform from Sun E10K to HP Superdomes with HA clustering and full site resilience (2008)
    • Implemented the esure insurance platform with automatic failover using dark fibre between data centres
    • Consolidated Oracle Financials onto POWER 5/AIX infrastructure
    • Built secure e-commerce infrastructure for multiple hosted brands
    • Apache/SSL, WebLogic and high-availability architecture

  6. Century Inns PLC

    Aug 1995 - Aug 1999

    IT Manager

    Joined as part of a graduate work programme to help implement new accounting systems. Became IT Manager with three direct reports. Implemented electronic invoicing (EDI) and led a £1M+ EPOS rollout to the company's pubs and hotels.

Skills, honestly

Strong

  • Agentic AI (Bedrock AgentCore, MCP, Claude Code, Codex)
  • Production infrastructure & operations
  • AWS / Azure / Terraform
  • Kubernetes / Docker / ECS
  • Python (APIs, automation, tooling)
  • CI/CD & GitOps
  • Security & compliance (IAM/LDAP, PCI-DSS)
  • Incident response & on-call
  • Technical writing

Moderate

  • Databases (operational, not a DBA)
  • Chef / Ansible
  • ML model development (I work on the infrastructure and applied agents, not training models)

Gaps (I'll tell you)

  • Frontend development - haven't done it professionally
  • Traditional enterprise Unix (Oracle, AIX, WebLogic) - knew it well once, rusty now
  • Java - can read it, wouldn't claim to write production Java
  • Rust / Zig - hobbyist interest only
  • Consumer and mobile products - my whole career has been B2B and infrastructure
Full technical skills list
Agentic AI
AWS Bedrock AgentCore, MCP (server & integration design), Claude Code, Codex, Agentic workflow design
Cloud & Infrastructure
AWS, Azure, Terraform, HA architecture
Security & Compliance
Identity & access management (LDAP), PCI-DSS audit compliance, Anti-fraud platform design, Secure infrastructure
DevOps & Automation
Ansible, Chef, CI/CD, GitOps, Infrastructure as Code
Containers & Orchestration
Docker, Kubernetes, ECS
Observability
Splunk, Prometheus, Performance analysis, Incident investigation
Development
Python, Bash, Git/GitHub
Systems
Linux, HAProxy, MySQL, PostgreSQL, HA clustering, 24/7 production support

Am I a fit?

A few honest examples. For your actual role, point your agent at me (below) and paste in the job description.

Role: Forward Deployed Engineer at an AI platform company, embedded with enterprise customers in regulated industries, building agent and MCP integrations.

✓ Strong match - this is the job I'm doing now

I've built MCP integration layers and AgentCore workflows with human-in-the-loop approval gates on Fusion, and I've spent thirty years being dropped into unfamiliar, regulated environments - banking, payments, the NHS - and making things work.

Role: Senior Platform Engineer at a healthtech company. AWS, Kubernetes, on-call experience required, Python preferred.

✓ Strong match - let's talk

Ten years on NHS critical infrastructure, deep AWS and Kubernetes experience, comfortable with on-call, and I use Python daily.

Role: Head of Product, consumer mobile app. Deep mobile experience and a growth/experimentation background required.

⚠ Probably not your person

My entire career has been B2B infrastructure. I understand consumer patterns intellectually but haven't shipped consumer products. The API architecture work transfers; growth and experimentation isn't my wheelhouse.

Writing & education

Ask your own agent about me

There's no chatbot here. Instead there's a read-only MCP server with my CV, projects and writing. Connect your own Claude, Codex or other MCP client and ask it whatever you like - including whether I'm a fit for your role. It'll tell you the gaps too.

https://jolyon-mcp.jolyon-ea8.workers.dev/mcp
Setup snippets

Claude Code:

claude mcp add --transport http jolyon https://jolyon-mcp.jolyon-ea8.workers.dev/mcp

Most other clients take a JSON config like this:

{
  "mcpServers": {
    "jolyon": { "type": "http", "url": "https://jolyon-mcp.jolyon-ea8.workers.dev/mcp" }
  }
}

Not using MCP? The same data is at /site.json, and there's a summary for AI tools at /llms.txt.