Available for projects

Hi, I'm Mark Jennings

Senior Full-Stack Developer, AI Automation Expert & Cloud Architect

📍 Cornwall, UK — Serving Clients Worldwide

Engineering scalable systems & automating the future of business.

I am a senior full-stack developer, technical architect, and AI automation consultant based in Cornwall, UK. I specialize in engineering highly resilient cloud systems, modern web applications, and custom automation pipelines that empower local innovators (like Wildanet) and enterprise clients globally to scale.

Architect. Engineer. Automator.

I specialize in designing and engineering high-performance systems that solve complex business challenges. From scalable cloud architectures to intelligent automation pipelines, my focus is on delivering robust, enterprise-grade solutions.

With deep expertise across the entire stack, I bridge the gap between infrastructure, backend logic, and frontend experiences. Whether it's deploying resilient microservices or crafting intuitive interfaces, I ensure every component works seamlessly together.

My approach is rooted in clean architecture, automation, and continuous optimization. I don't just write code; I build systems that scale, adapt, and drive real business value.

10+
Years Experience
50+
Enterprise Projects
99.9%
System Uptime
Automation Focus

Cloud Architecture

Designing highly available, scalable infrastructure on AWS & GCP.

AI & Automation

Integrating intelligent workflows and optimizing business processes.

Full-Stack Engineering

Building resilient APIs and high-performance modern web applications.

System Operations

Implementing robust CI/CD, monitoring, and zero-downtime deployments.

My Tech Stack

The technologies I use to bring ideas to life.

Languages

JavaScriptTypeScriptPHPDartPythonSQLHTML/CSS
🧩

Frameworks & Libraries

FlutterReactNext.jsNode.jsWordPressExpress
☁️

Cloud & DevOps

Google CloudCloud RunDockerFirebaseCI/CDLinux
🔌

IoT & Hardware

Raspberry PiESP32ArduinoMQTTDMX/ArtNetFirmware
🗄️

Data & APIs

MySQLPostgreSQLREST APIsGraphQLDynamics CRM
🛠️

Tools & Workflow

GitVS CodeFigmaJiraAI CodingAgile

Where I've Worked

2022 — Present

Technical Lead / Full-Stack Developer

Wildanet

Leading development of customer-facing web platforms, internal tools, and API integrations for a growing ISP. Building e-commerce solutions, admin portals, and CRM integrations with Dynamics 365.

  • Architected transition of core services to Google Cloud Run
  • Designed real-time CRM integration between billing and Dynamics 365
  • Led a collaborative agile team of 5 developers
WordPressPHPJavaScriptDynamics CRMCloud Run
2020 — Present

Founder & Developer

Playerverse

Built a full-stack SaaS platform from the ground up — including a customer portal (Flutter), dynamic pricing engine (WordPress), and cloud-deployed infrastructure on Google Cloud Run.

  • Deployed Flutter web apps to Cloud Run
  • Built dynamic pricing plugin system
  • Managed GCP infrastructure and DNS
FlutterDartGoogle CloudDockerPHP
2018 — 2022

IoT Engineer & Developer

LightPad Project

Designed and built a complete IoT lighting control system — from ESP32 firmware and Raspberry Pi controllers to a web-based dashboard with real-time device management, OTA updates, and network diagnostics.

  • Engineered reliable ESP32 firmware in C++
  • Developed MQTT and DMX protocol lighting sync layers
  • Designed subnetwork diagnostics dashboards in Python
C++PythonRaspberry PiESP32MQTTDMX
2015 — 2020

Full-Stack Developer

Freelance / Contract

Delivered web applications, WordPress solutions, and custom software for a range of clients. Specialised in responsive design, e-commerce, and API integrations.

  • Created over 30 bespoke WordPress and Laravel solutions
  • Integrated multiple third-party REST and GraphQL APIs
  • Handled clients directly from scoping to server operations
JavaScriptPHPWordPressMySQLREST APIs

Things I've Built

A selection of projects that showcase my skills across the stack.

🎮

Playerverse Platform

Full-stack SaaS platform with a Flutter customer portal, WordPress-based pricing engine with dynamic component-based packages, and cloud-deployed infrastructure.

FlutterPHPCloud RunDockerWordPress
💡

LightPad IoT System

End-to-end IoT lighting control — custom ESP32 firmware, Raspberry Pi controller with web dashboard, OTA updates, subnet scanning, and DMX/ArtNet integration.

C++PythonESP32Raspberry PiMQTT
🌐

Wildanet Web Platform

Customer e-commerce platform and admin portal for a broadband ISP, including account management, CRM integration with Dynamics 365, and automated provisioning workflows.

WordPressPHPJavaScriptDynamics CRMREST APIs
🤖

AI Chat Assistant

Intelligent product assistant with image-enriched responses, built for e-commerce. Uses AI to match queries to products and displays relevant information with rich media cards.

JavaScriptAI/MLPHPREST APIs

Latest Posts

Thoughts on development, technology, and building things.

Cloud
Coming Soon

Deploying Flutter to Cloud Run: A Practical Guide

A step-by-step walkthrough of building, containerising, and deploying a Flutter web app to Google Cloud Run.

IoT
Coming Soon

Building an IoT Lighting System from Scratch

From ESP32 firmware to a Raspberry Pi controller — lessons learned building a production IoT system.

How I Work

Available for projects. My process is transparent, agile, and tailored to your requirements.

📋

Fixed Price Projects

For well-defined scopes, I provide a comprehensive specification and fixed estimate. This ensures transparency and guaranteed delivery.

Landing PageFrom £800
E-Commerce SiteFrom £2,500
Web ApplicationFrom £4,000

Agile Development

For dynamic projects, we work in sprints to adapt to changing requirements and prioritize high-value features quickly.

1-Week Sprint£1,750
2-Week Sprint£3,300
Monthly Retainer£6,000
⏱️

Flexible Rates

I offer flexible billing options and can integrate seamlessly into your team on a time-and-materials basis.

Hourly Rate£60 / hr
Day Rate£400 / day
Consultancy£80 / hr

Let's Work Together

Have a project in mind? I'd love to hear about it.