Hi, I'm Mark Jennings
Technical Architect & Passionate Developer
📍 Cornwall, UK — Serving Clients Worldwide
I am a technical architect and passionate developer / systems engineer based in Cornwall, UK. I specialize in engineering highly resilient cloud infrastructure, event-driven microservices, and enterprise integration pipelines that empower local businesses 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.
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.
Cloud & System Architecture
DevOps & Infrastructure
Enterprise Data & Integration
Core Engineering & Languages
IoT & Edge Computing
Leadership & Workflow
Where I've Worked
Systems Integration Manager / Technical Lead
Principal technical architect for core broadband digital platforms and enterprise integration architecture at a growing ISP. Spearheading domain-driven microservices, real-time CRM/ERP sync pipelines, infrastructure scalability, and zero-downtime cloud systems on Google Cloud Platform.
- Architected serverless cloud migration to Google Cloud Run, establishing container orchestration, CI/CD pipelines, and 99.99% infrastructure availability.
- Designed event-driven enterprise CRM integration between billing systems and Microsoft Dynamics 365 for high-throughput, real-time bi-directional synchronization.
- Established architectural standards, technical governance, and led an agile engineering team of 5+ developers in delivering high-volume broadband provisioning tools.
Founder & Principal SaaS & IoT Architect
Architected and engineered a multi-tenant SaaS platform infrastructure alongside the LightPad IoT edge computing and hardware control ecosystem. Managed end-to-end cloud infrastructure, low-latency firmware development, and secure APIs.
- Architected serverless multi-tenant backend architecture deployed on GCP Cloud Run with automated scalability.
- Designed dynamic pricing engine microservice handling complex component packages and custom pricing rules.
- Engineered low-latency C++ firmware and PIC Programming for ESP32 edge nodes with fault-tolerant reconnect mechanisms.
- Designed custom circuits and PCB layouts/manufacture for hardware control layers with real-time MQTT synchronization.
- Developed subnetwork diagnostics and telemetry dashboards in Python for remote fleet management.
Managing Director / CTO
Provided architectural consultancy and custom software development for 30+ enterprise and SMB client engagements, specializing in scalable web design, database schema design, and secure API integrations.
- Architected and delivered over 30 bespoke web platforms, e-commerce solutions, and micro-applications.
- Designed and integrated third-party REST and GraphQL API gateways with high reliability and caching.
- Handled end-to-end client engagements from architectural scoping to production cloud deployment and operations.
Earlier Career History
Things I've Built
A selection of projects that showcase my skills across the stack.
Playerverse Platform
Multi-tenant SaaS platform architecture featuring a Flutter customer portal, WordPress-based dynamic pricing microservice, and serverless infrastructure on GCP Cloud Run.
LightPad IoT System
End-to-end IoT lighting control architecture — custom ESP32 C++ firmware, Raspberry Pi controller with web dashboard, OTA updates, subnetwork telemetry, and DMX/ArtNet protocol sync.
Wildanet Web Platform
Enterprise broadband portal and integration architecture for an ISP, incorporating customer account management, bi-directional CRM integration with Dynamics 365, and automated provisioning pipelines.
AI Chat Assistant
Intelligent product assistant microservice with image-enriched responses, built for enterprise e-commerce. Uses AI matching pipelines with rich media response cards.
Latest Posts
Thoughts on development, technology, and building things.
Deconstructing HAL 9000: Symbolic Reasoning, Backtracking & FLEX
Simulating HAL 9000's fatal dilemma in 2001: A Space Odyssey using symbolic AI rules, priority backtracking, and how modern LLMs compare.
Hello, World — Welcome to My Blog
Why I'm starting a blog, what I'll be writing about, and what to expect from this corner of the internet.
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.
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 Page | From £800 |
| E-Commerce Site | From £2,500 |
| Web Application | From £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.