Projects
These case studies show how I work and some of the projects I've worked on.
The Department for Business, Energy and Industrial Strategy (BEIS) was a UK government department responsible for business growth, energy policy, and climate change. Between 2016 and its closure in 2023, BEIS played a central role in shaping the UK’s approach to decarbonisation, including improving the energy efficiency of existing housing stock as part of the country’s longer-term net-zero ambitions.
One of the department’s most visible initiatives in this area was the Green Homes Grant, announced in 2020. The scheme was designed to support homeowners and landlords in England with the installation of energy-efficient and low-carbon heating measures. Eligible households could apply for government-backed vouchers covering a significant proportion of the cost of approved improvements, with higher support available for low-income households. At its peak, the programme represented a £1.5–£2 billion public investment aimed at reducing emissions, lowering household energy bills, and stimulating economic activity following the COVID-19 pandemic.
While the scheme’s delivery faced well-documented operational challenges and ultimately closed to new applications in 2021, its scale and urgency made it one of the most ambitious domestic retrofit programmes attempted in the UK. Delivering it required coordination across government departments, installers, certification bodies, and digital platforms capable of handling large volumes of applications under intense public and political scrutiny.
TrustMark operates as the UK’s government-endorsed quality scheme for tradespeople carrying out work in and around the home. As the sole government-approved agent for schemes such as the Green Homes Grant, TrustMark sat at the centre of the programme’s delivery model, providing assurance that installers met required standards and enabling households to engage with accredited professionals.
From August 2020 to December 2021, I worked with TrustMark as a technical consultant on contract, contributing to both greenfield development and significant updates across an existing product suite. The work focused on strengthening the digital services that supported installer registration, homeowner journeys, and administrative oversight for government-funded schemes.
The role involved close collaboration with TrustMark’s senior leadership, as well as direct engagement with representatives from BEIS and ministerial offices. Given the public funding involved, the systems we worked on needed to be reliable, transparent, and adaptable to evolving policy and operational requirements.
Technically, the work sat across a modern web stack, with Vue used for front-end development and C#.NET Core powering backend services exposed via APIs. A strong emphasis was placed on maintainability and testability, supported by NPM-based tooling, Mocha for automated testing, and a disciplined approach to version control and CI/CD using Git-based pipelines.
AWS provided the infrastructure backbone, enabling scalable hosting and deployment while accommodating fluctuating demand driven by scheme deadlines and public uptake. Architectural decisions were shaped by the need to balance rapid delivery with long-term stability, ensuring that changes could be made safely as requirements evolved.
My contribution included assisting with the design and implementation of the front-end framework that underpinned key user journeys, helping ensure that complex administrative processes were accessible and understandable for both homeowners and certified installers.
Working on systems tied directly to public policy highlighted how closely software delivery and real-world outcomes are connected. In this case, digital platforms were not abstract products — they were the primary means through which households accessed government support and through which installers participated in a nationally significant programme.
The experience reinforced the importance of clear communication, pragmatic architecture, and collaboration across organisational boundaries. When technology underpins high-profile public initiatives, success depends as much on trust and clarity as it does on code quality.
It was a demanding environment, but also a meaningful one — a reminder that well-designed systems can play a tangible role in supporting broader societal goals.
