Preux
WorkWorkCapabilitiesCapabilitiesAboutAboutInsightsInsightsStart a projectStart a project→

Start a project

Tell us what needs to work.

Begin a conversationBegin a conversation
Preux

A London software firm of senior builders. Custom software for real operations, taken to production.

Firm

WorkCapabilitiesInsightsAbout

Company

ContactProductsPrivacyTerms

Contact

hello [at] preux.co.ukLondonWorking across the UK, US & Europe
Preux

© 2026 Preux. All rights reserved.

Designed & built in London.

Capabilities

One team, from strategy to production.

Four connected capabilities, sold as one engagement and priced to the outcome. We shape strategy by building it, and we put AI to work wherever it earns its place.

EngineeringWeb · Mobile · Cloud
TeamSenior-led, partner-backed
AIEmbedded in how we build
01

Software engineering

Enterprise-grade systems, built to outlive us.

We build the systems a business runs on: operational platforms, customer and partner portals, data and workflow systems for regulated, high-stakes environments. Senior engineers design for the decade ahead — maintainable, secure, and owned by your team rather than locked to ours.

Platform engineering on proven foundationsSystem and data architectureSecure customer and partner portalsLegacy modernisationCloud delivery on Azure and AWS
  • Production systems, not prototypes
  • Code your team can own and extend
  • Security and compliance designed in from day one
02

Product & strategy

Discovery and design that find the right thing to build.

Discovery, product design, and UX from the people who will also build the result. No strategy deck handed off to someone else to implement. We narrow the problem, design the surface around how work actually moves, and stay accountable to what reaches production.

Product discovery and shapingExperience and interface designUX strategy and auditsDesign systemsRoadmap and delivery planning
  • One team from first principle to launch
  • Decisions grounded in delivery reality
  • Interfaces designed around the workflow
03

AI to production

AI taken to production, with people in control where it counts.

We treat AI as an engineering discipline, not a demo. Evaluations, governance, and success criteria are agreed before we build — so the system survives twelve months in production, with people in control of the decisions that matter. We stay model-agnostic and measure throughput, not theatre.

Applied-AI assessment and roadmapEvaluation harnesses and observabilityAgentic and assisted internal toolingDocument, triage and routing workflowsGovernance, access control and audit
  • Success criteria defined before the build
  • Evals, guardrails and observability in CI
  • Measured by handling time and error rate
04

Delivery platform

A proven, compliance-ready foundation for regulated platforms at scale.

For complex, regulated builds we can deliver on a proven application framework — one already operating at national-government scale, with more than a billion records under management and compliance controls built in. It brings data, workflow, and deployment into one layer, so a regulated platform reaches production without rebuilding that plumbing each time.

Integrated data and query layerWorkflow and event orchestrationAutomated deployment, no separate DevOpsRole-based access and audit trailLicensable to your own clients
  • Compliance and audit controls built in
  • Less custom plumbing, more product
  • Built on a framework proven at national, billion-record scale

How delivery works

A short path from rough brief to production.

01

Shape the problem

We narrow the workflow, the constraints, and the real delivery surface before any technology gets romanticised. The senior people who scope it are the ones who will build it.

02

Build the system

Interface, workflow, and operational logic built together on a durable foundation — to production, not to a demo, with security and compliance designed in.

03

Hand over with control

The end state is a system your team can run, extend, and trust. Ownership stays with you; we leave you stronger, not dependent.

Start a project

A good brief can start rough.

If the operational problem is real and the bar is high, that's enough to begin. Tell us what needs to work.

Begin a conversationBegin a conversation