Stu Mason

I turn ideas into working software. Fast.

Versatile Full-Stack Developer

Folkestone, Kent, UK[email protected]07713333312 LinkedIn GitHub stumason.dev

Summary

Stu is a senior full-stack developer with 15+ years across the entire software lifecycle. Deep expertise in API, Python, and AWS, combined with broad experience across modern web technologies. Adaptable, self-directed, and focused on delivering business value through clean, maintainable solutions.

Key Achievements

500M+

events/month processed in production microservices

550+

individuals trained across technical and non-technical AI adoption

60%

admin time reduction for healthcare clients through AI automation

99.9%

uptime on Lambda/API Gateway/DynamoDB platform

Full-Stack Capabilities

API(70%)Python(62%)AWS(60%)

How I Add Value

Api: Listed expertise in LLM Integration, 1 repo using api, 311 related commits, active in last 90 days

Professional Experience

AI Transformation Lead

Pfizer & Independent Clients | Remote

Jan 2024 – Present

Leading AI adoption across pharmaceutical, healthcare, and recruitment sectors

•Designed and deployed "AI First Stack" using self-hosted Supabase, n8n, and modern frameworks
•Built production RAG systems using PostgreSQL pgvector for knowledge retrieval across 1000+ documents
•Achieved sub-second response times on hybrid search implementations
•Created suite of MCP tools including API key management, blog integration, task board automation

Microservices Technical Lead

Pfizer | Remote

July 2020 – Jan 2024

Engineering leadership for pharmaceutical platform serving 1000+ sites globally

•Led team building serverless ecosystem that scaled to handle 500M+ events during peak traffic
•Implemented AWS DAX and caching strategies to handle Super Bowl commercial traffic surge
•Architected Lambda/API Gateway/DynamoDB platform with 99.9% uptime
•Created training program completed by 500+ engineers on microservices best practices

Technical Skills

AI & Machine Learning

RAG (Retrieval Augmented Generation), Vector Databases (pgvector, SQLite), Hybrid RAG implementations, Prompt Engineering, Model Context Protocol (MCP), Multi-agent system architecture

LLM Integration

OpenAI APIs, Claude APIs, MCP tool development, AI workflow automation, Custom API integrations

Cloud & Platform

AWS (Lambda, API Gateway, DynamoDB, ECS, DAX), Python, TypeScript, PHP, Laravel, Flask, Vue.js, Serverless architecture, Coolify deployment

Enterprise Systems

Microservices architecture, CI/CD automation, DevOps practices, Performance optimisation, Caching strategies

Education

BSc Computer Science

Bolton University, 2006

PGCE in Computing

Reading University, 2009

Certifications

AWS Certified Solutions Architect

Amazon Web Services, 2023

AWS Certified DevOps Professional

Amazon Web Services, 2023