Skip to main content
Agentic Online

Service group

Application Development

An application is a commitment, not a delivery. We build software the way it has to be maintained: typed end to end, tested at the boundaries that actually break, documented for the next person, and deployed through a pipeline your team can run without us. Where AI genuinely improves the product it is designed in as a feature with defined behaviour — not bolted on as a demonstration.

Discuss your projectHow we deliver

Services in this group

  • AI-powered application development
  • Custom web and mobile applications
  • Legacy application modernisation

The problem

What this service is for

If any of these describe your organisation, this is the right group to start with.

  • A critical process runs on spreadsheets, email and manual reconciliation.
  • An existing system works but nobody is confident changing it, so improvements stall.
  • Off-the-shelf products cover 70% of the requirement and the remaining 30% is where the value is.
  • Previous development left no tests, no documentation and no clear owner.
  • Mobile and desktop users need the same process to behave consistently.

What we do

Services included in this group

AI-powered application development

Products where AI is a designed-in capability: drafting, extraction, classification, summarisation, semantic search or decision support, each with defined behaviour, measurable quality and a fallback when the model is unavailable or uncertain.

Custom web and mobile applications

Responsive web applications and mobile experiences built on a shared, typed API. Accessibility, offline tolerance and performance budgets are treated as requirements, not as later optimisation.

Legacy application modernisation

Incremental replacement of systems that are too important to switch off. We put tests and instrumentation around current behaviour first, then migrate capability by capability so there is no single high-risk cutover.

Key deliverables

What you receive

Tangible artefacts, not a status report. Everything below is handed over and belongs to you.

  • Requirements and acceptance criteria written as testable statements
  • Solution and data architecture, including integration contracts and a migration path
  • Working application delivered in reviewable increments you can use before it is finished
  • Automated test suite: unit, integration, end-to-end and accessibility checks in the pipeline
  • CI/CD pipeline, infrastructure definitions and environment configuration held in your repository
  • Accessibility conformance review against WCAG 2.2 AA with remediation notes
  • Technical documentation, architecture decision records and an operational handover

Expected outcomes

What changes as a result

Described as what the deliverable makes possible. We do not guarantee business results, and any figure we quote will be one you can verify.

  • A process that previously depended on individual discipline is enforced by the system
  • Changes ship in days rather than release cycles, because the test suite makes them safe
  • The codebase can be handed to your team or another supplier without a rewrite
  • Users on phones, tablets and desktops complete the same task the same way
  • Legacy risk is reduced progressively, with a working system at the end of every step

Technologies

What we build with

Chosen for fit rather than fashion. Where your organisation has a standardised technology set, we work within it or make a documented case for an exception.

  • TypeScript, React, Next.js
  • Node.js and Python services
  • PostgreSQL, Prisma, Redis
  • React Native and progressive web applications
  • REST and GraphQL APIs with OpenAPI contracts
  • Playwright, Vitest, axe-core
  • GitHub Actions, Docker, containerised deployment

Engagement options

How to start with this service

Most engagements begin with the smallest bounded commitment that answers the open question.

Discovery sprintTypically 1–2 weeks, fixed fee
A short, bounded piece of work that turns a broad ambition into a defined problem, a recommended approach and a costed plan. You keep the outputs whether or not we build the solution.
Fixed-scope deliveryDefined outcome, milestone-based
An agreed scope, acceptance criteria and milestone schedule. Change is handled through a written change process rather than absorbed silently.
Dedicated capacityMonthly, rolling
An agreed number of specialist days per month against a prioritised backlog you control. Suited to programmes where scope evolves faster than it can be specified.
Managed serviceOngoing, agreed response targets
Continuing operation, monitoring, patching and improvement of a system we or another supplier built, under response and resolution targets agreed in writing.

Related

Sectors

Professional services

Document-heavy, expertise-led work where time recovery and consistency of output determine margin.

See the sector detail

Logistics & transport

Operational visibility, document processing and exception handling across movements, fleets and facilities.

See the sector detail

Construction & engineering

Site capture, submittal review and project reporting for work that happens away from a desk.

See the sector detail

Small & medium enterprises

Practical automation and dependable IT for organisations without a large internal technology team.

See the sector detail

Solutions

Illustrative solution pattern

Incremental legacy modernisation

Replacing a system that cannot be switched off, one capability at a time, with every step independently reversible.

Read the full write-upIllustrative solution pattern

Operations dashboard on governed data

A single operational view built on agreed metric definitions, with visible freshness and drill-through to source records.

Read the full write-upIllustrative solution pattern

System integration layer

Reliable data movement between line-of-business systems, with versioned contracts and reconciliation so failures surface.

Read the full write-up

Other service groups

  • Agentic AI & Automation
  • Cloud & Infrastructure
  • Data & Analytics
  • Cybersecurity & Compliance
  • Managed Services & Support
Back to all services

Talk to us about application development

Tell us the problem in your own words. If this is the wrong service for it, we will say so and point you at the right one — including at another supplier if that is the honest answer.

We reply to every enquiry within one business day.

Discuss your projectRead our FAQs