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Barnett Studios

Case Studies

Composite accounts drawn from real engagements. Names and identifying details changed.

Regulated Finance

Audit trail for every microsecond

A MiFID II-regulated trading platform needed a back-office control plane that could keep pace with a low-latency matching engine. We designed the system on Aeron Cluster, built the cloud infrastructure from scratch, led multiple engineering teams through delivery, and introduced AI-assisted development practices across the organisation. The result: full regulatory compliance with sub-millisecond internal latency and an operations team that could sleep through the night.

Java · Aeron Cluster · React · ClickHouse · Kafka · Terraform · AWS

Workplace Safety

Stabilising a team that had lost trust

A safety-tech company had cycled through two CTOs in five years. Engineering morale was low, the roadmap was stalled, and the board was losing patience. We came in as CTO, reset the technology strategy, restructured the department into a distributed remote-first organisation, rebuilt the platform on modern infrastructure, and reshaped company direction beyond engineering. Twelve months later the team was shipping again and retention had stabilised.

React · Node.js · Flutter · Kubernetes · Terraform · AWS

Online Entertainment

First commit to thousands of users in six months

A real-money platform in a regulated market needed to move from idea to live product before a licensing window closed. As one of five founding engineers we built the entire stack from scratch, prioritising simplicity over sophistication — decisions that cut hosting costs in half and made the first year of operations manageable with a tiny team. After launch we grew the engineering organisation from five to forty people without rewriting the core.

React · .NET Core · PostgreSQL · Kafka · Kubernetes · AWS

Supply Chain

Migrating without the big bang

A global aftermarket services company was running on a legacy monolith that could not support the product roadmap. We led a forty-person engagement using a Strangler Fig strategy — incrementally replacing screens and services while the old system kept running. Built the client relationship from the first meeting, drove engineering standards across multiple delivery teams, and handed over a modern architecture that the in-house team could maintain independently.

Angular · React · GraphQL · Java Spring · AWS · GCP

Telecom Infrastructure

Making physical assets queryable

Tower companies needed a way to assess thousands of telecom sites without sending engineers to every location. We helped build a platform that turned drone survey data into interactive digital twins — enabling asset management, EMF compliance simulation, and M&A due diligence from a browser. The tooling reduced site-visit costs and accelerated portfolio evaluation during acquisitions.

Digital Twins · 3D Modelling · Drone Surveys · EMF Simulation

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