ben.milleare
About Notes Get in touch

Strategic
technical leadership
when it matters.

I'm Ben Milleare, a Fractional CTO architecting scalable systems, building high-performance teams, and translating complex technology into business outcomes for ambitious companies.

Get in touch
›
15+
Years
50+
Projects
£250M+
Scaled
What I Do

How I can help.

Four ways I plug into your team and move the needle on what actually matters.

01

Technical Leadership

Strategic CTO guidance without the full-time commitment. Technical roadmaps, architecture decisions, and technology strategy aligned with business objectives.

Strategy · Roadmaps · Architecture
02

Engineering Teams

Build and scale world-class engineering organisations. Recruitment strategy, technical hiring, team structure, and engineering culture development.

Hiring · Culture · Processes
03

System Architecture

Design systems that scale. Cloud architecture, microservices, data infrastructure, and platform engineering that handles growth from startup to enterprise.

Cloud · Data · Platform
04

Technical Due Diligence

Comprehensive technical audits for M&A, fundraising, or strategic planning. Code quality, architecture review, team assessment, and risk analysis.

Audits · Risk · M&A
Track Record

Fifteen years
of shipping at scale.

From solo founder to engineering leader at high-growth startups, building, scaling, and selling technology companies from seed through exit.

Leadership
  • ›Team building & scaling
  • ›Technical strategy
  • ›Engineering culture
  • ›Stakeholder management
Technical
  • ›System architecture
  • ›Cloud infrastructure
  • ›Data engineering
  • ›Platform design
Technologies
Linux PHP Laravel Temporal AWS JavaScript PostgreSQL Docker Vue GraphQL InfluxDB Rust Python
How I Work

Two ways to engage,
infinite ways to flex.

Engagement models designed to match your stage, scope, and strategic needs.

Project-based

CTO-as-a-Service

Defined initiatives with clear deliverables. I lead your project from inception to successful delivery.

Duration: 4–12 weeks typically
Ideal for
Architecture reviews
AI/ML POCs
Tech due diligence
System audits
Deliverables
  • ›Comprehensive documentation & roadmaps
  • ›Working code & architecture decisions
  • ›Knowledge transfer & team training
Ongoing partnership

Fractional CTO

Strategic technical leadership on a part-time basis. CTO expertise without the full-time commitment.

Commitment: 2–5 days / month, ongoing
Ideal for
Growth-stage startups
Strategic planning
Team scaling
Board reporting
Responsibilities
  • ›Technology strategy & roadmap ownership
  • ›Team building, hiring & mentorship
  • ›Stakeholder & investor communications

Flexible & founder-friendly

Not sure which model fits? I often start with a project engagement that evolves into an ongoing fractional relationship as we build trust and momentum. I'm also open to equity-only opportunities with funded startups and scaleups, so if this is you, let's talk.

The Process

A proven framework for delivering results.

01

Discovery

Understanding business goals & technical challenges

02

Strategy

Developing a roadmap aligned with objectives

03

Implementation

Hands-on execution with progress updates

04

Optimisation

Continuous improvement & knowledge transfer

AI Implementation

AI that actually works.

From proof-of-concept to production. Practical, compliant, scalable AI, not buzzword theatre.

Agent Systems

Multi-Agent Workflows

Sophisticated multi-agent systems using LangChain, AutoGen, and CrewAI for complex business processes that need orchestration, not just calls.

›Task orchestration & delegation
›Memory & context management
›Agent communication protocols
›Tool use & function calling
Enterprise AI

AWS Bedrock & Compliance

Enterprise-grade AI with FCA/FSA compliance and data residency.

  • → Frontier models on demand
  • → Private endpoints
  • → Audit trails
  • → Data residency
Open Source

Open-Weight Models

Deploy and fine-tune Llama, Mistral, and Qwen families for full data sovereignty.

  • → Llama, Mistral, Qwen
  • → Quantization & LoRA fine-tunes
  • → vLLM & SGLang serving
  • → On-prem & private cloud
Knowledge Systems

RAG & Knowledge

Intelligent knowledge bases with advanced RAG and hybrid search.

  • → Vector DB optimisation
  • → Hybrid search
  • → Chunking & embeddings
  • → Query expansion
Production Ops

Production AI Ops

Scale from prototype to production with monitoring and optimisation.

  • → LLM observability
  • → Prompt versioning
  • → Cost tracking
  • → Safety guardrails
Debug & Fix

AI Troubleshooting

Fix what's broken, optimize what's slow, and make your AI systems actually deliver value.

›Hallucination mitigation
›Context optimisation
›Token reduction
›Response improvements
Tech Stack
Claude GPT Gemini Gemma Grok DeepSeek MiniMax Llama Mistral Qwen Ollama LangChain CrewAI Temporal n8n pgvector Pinecone Weaviate Langfuse
!

Common Pitfalls

No clear business case
Implementing AI because it's trendy, not because it solves a real problem
Ignoring data reality
Assuming AI will magically work with messy, unstructured data
Underestimating complexity
Treating production AI like a simple API integration
✓

A Better Approach

Start with ROI
Define clear business metrics and expected returns before writing code
Data-first approach
Assess and prepare your data infrastructure before AI implementation
Incremental deployment
Start small, measure impact, iterate based on real results
Development Practice

AI-augmented dev without the slop.

The "vibe coding" trap

Too many teams ship AI-generated code without understanding it, creating technical debt that compounds faster than any productivity gains.

Signs you're vibe coding
  • × Accepting AI suggestions without review
  • × Can't explain what generated code does
  • × No tests for AI-generated functions
  • × Prompting until "it works"

AI as a force multiplier

Integrated properly, AI accelerates experienced developers without compromising code quality. Augmentation, not replacement.

Proper AI integration
  • ✓ AI for boilerplate, humans for logic
  • ✓ Generated code gets reviewed & tested
  • ✓ Use AI to explore, not ship blindly
  • ✓ Maintain ownership of architecture
My AI-SDLC Framework
1
Design
AI: research
Human: decisions
2
Develop
AI: scaffolding
Human: core logic
3
Test
AI: test gen
Human: validation
4
Deploy
AI: monitoring
Human: decisions
Cross-Domain Expertise

The polymath advantage.

Real innovation happens at the intersection of domains. I architect solutions that span business strategy, technology, AI, and finance.

Technology
Cloud · DevOps
AI & ML
LLMs · Agents
Business
Strategy · Growth
Finance
Risk · Compliance
Cross-Domain Expertise
  • ›Tech + Business - aligning architecture with business goals
  • ›AI + Business - measuring real business impact of AI
  • ›Finance + Tech - FinTech systems and compliance
  • ›AI + Finance - AI-powered risk and cost optimisation
The Multiplier Effect

Value multiplies at every intersection.

› Zero translation layers › Compound risk assessment › Holistic optimisation
Automation

Bulletproof workflow automation.

Reliable, scalable automation that handles millions of transactions without breaking a sweat.

Temporal

Temporal.io

Durable execution
Core capability

Durable execution platform born from Uber's Cadence, building mission-critical workflows that never lose state, even during crashes or network failures.

Features
  • Failure recovery
    Automatic retries with exponential backoff, no data loss
  • Long-running workflows
    Handle processes that run for days, months, or years
  • Built-in observability
    Full visibility into workflow state and history
Use cases
Payment Processing Order Fulfillment ETL Pipelines ML Training
n8n

n8n

Visual automation
Core capability

Extendable workflow automation platform for rapid development, empowering both technical and non-technical teams to build powerful integrations.

Features
  • Self-hosted
    Complete data control and privacy compliance
  • 400+ integrations
    Connect any API or service out of the box
  • Code when needed
    Mix no-code with JavaScript for complex logic
Use cases
Data Sync Marketing Automation IT Operations Webhook Processing
Orchestration Strategy

The power of combined orchestration.

Combine Temporal's rock-solid durability with n8n's rapid development capabilities to deliver workflow automation that's both bulletproof and business-friendly. Critical processes never fail; teams adapt to change without engineering bottlenecks.

Agentics Foundation
Associate · agentics.org

I'm a member of the Agentics Foundation, the global community shaping safe, autonomous multi-agent AI, so your team gets first-look access to emerging patterns, governance standards, and production-grade orchestration tooling.

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