— An independent consultancy
Index № 03 / 2026

Custom software
for the operationally
complex
.

We design and build AI products, full-stack web applications, and decision systems end-to-end — for businesses whose problems don't fit off-the-shelf products.

Practice
AI engineering · Full-stack · Decision systems
Engagements
Build · Embed · Due diligence
Based
United Kingdom · Remote-first
§ 01 — Approach

Software that fits the
operation.

Position

A small, deliberate practice — focused on systems where the product thinking, the engineering, and the user surface have to be treated as one piece of work.

Lochstack is an independent software consultancy. We design, build, and ship end-to-end systems — AI products, web applications, and decision tools — for businesses whose operations don't fit neatly into existing products.

The work sits where domain complexity, careful modelling, and production-grade engineering meet. Typical engagements combine AI and applied modelling with the data layer beneath and the interface layer that makes the result usable.

§ 02 — Capabilities

Four ways we typically
work.

01 Engineering

AI engineering

LLM-powered products, agentic systems, retrieval pipelines, evals, and the surrounding infrastructure. We treat AI as engineering — versioned, measured, deployable — not as a demo.

02 Product

Full-stack web applications

Production web apps, internal tools, and operator interfaces. Frontend, backend, data, infrastructure — built by the same hands, so the seams are intentional.

03 Decision systems

Optimisation & decision tools

Where the right answer needs a model, not a dashboard — planning, allocation, forecasting, scheduling. We use whatever combination of optimisation and ML the problem actually calls for.

04 Advisory

Technical due diligence

Independent review of existing systems — architecture, correctness, maintainability. Useful before a build/buy decision, an acquisition, or a major rewrite.

Have a problem worth building?

Practice

AI engineering
Full-stack
Decision systems

Engagements

Build
Embed
Due diligence

Based

United Kingdom
Remote-first

Reply

Within one working day, from a person.