Alex Varden

About

I build things, and explain how they work.

Senior software engineer with eleven years building scalable web applications. Completed an MSc in Computer Science with AI while balancing full-time work. Now focused on the intersection of artificial intelligence and useful software.

Currently —
Unseen Group
Based in —
Manchester, UK
Focus —
AI · Assessment & Employability Software
Engineering

Full-stack, end-to-end

I've led projects across the entire software lifecycle — from architecture design through deployment and sunsetting. Clean code, TDD, and maintainable systems aren't just ideals, they're survival skills for long-term success.

PythonFastAPIJavaScriptPHPReactLaravelAWSDocker
AI & ML

From theory to production

My MSc thesis focused on model interpretability via surrogate models and counterfactual examples. I've shipped useful AI-focused solutions within the recruitment industry, and helped bring AI-first practices into enterprise software development teams.

PyTorchLangChainLangGraphspaCyHugging FaceLLMs

Experience

  1. 2017 — presentCurrent

    Senior Developer, Unseen Group

    Helped evolve GradTouch from startup to Unseen Group through acquisition and growth. Involved in the transition from monolithic SaaS to an API-based platform, homogenising multiple products into a single system via event-driven architecture. Spearheaded AI R&D efforts including an ensemble AI detector and LLM-based assessments, and delivered LLM-powered QA tooling and RAG-based chat agents for assessment result interpretation.

  2. 2015 — 2017

    Internal Tools Developer, Boohoo.com

    Built internal tooling for a 1,000+ person business, including inventory management, customer service tools, logistics APIs, and KPI dashboards. Balanced legacy Zend maintenance with greenfield projects on AWS.

Education

MSc Computer Science with Artificial Intelligence

University of York · 2023 · Merit

Thesis: Model interrogation: Surrogate models informed by counterfactual examples for model interpretability. Specialised in deep learning, NLP, and model explainability techniques.

BSc Multimedia and Web Computing

Manchester Metropolitan University · 2015 · First Class Honours