Web App Development

SaaS platforms, customer portals and internal web applications, built to hold up once real customers and real data arrive.

What we've learned so far

A web application is how a business stops depending on people to do repetitive work and starts depending on a system. That is the return: capacity that does not scale with headcount, a service customers can use without you, and a product you own rather than rent. For software businesses it is the entire proposition.

The working demo is the cheapest part and everyone knows it now. What separates a demo from a product is the second tenant, the first user who is not an administrator, and the day the data stops being sample data. Permissions are where we see the most rework: a model bolted on afterwards leaks, and the fix touches every query, so we define roles and visibility before the first screen. The other half is the conditions nobody designs for, including empty, loading, partial, failed, expired and exceeded. Teams that skip them ship something that demonstrates well and falls apart in the second week of real use.

Generating an application has never been easier, and the evidence on what arrives is consistent. Code is now produced faster than teams can verify it, duplication is rising, and studies report materially more security findings in AI co-authored code. The constraint has moved from writing software to being confident in it. We build with these tools, which is why we are quick, and we spend the time saved on architecture, permissions, tests and the decisions that are expensive to reverse. The schedule on our projects is usually set by how fast decisions arrive, which is why we ask for access to the business rather than a specification.

What this can involve

Reviewing security and compliance

Checking authentication, validation, secrets handling and data flows against how the application would actually be attacked or audited.

LLM Feature Development

Search, summarisation and assistant features built on language models.

Component Library Development

Coded components that match the design source and stay matched.

Backoffice and Admin Panels

Internal tools that centralise operations across stores, stock and orders.

Custom CMS Development

Content systems shaped around how your team actually works.

Rapid MVP Builds

The smallest shippable version, built in weeks rather than quarters.

Cloud Infrastructure Setup

AWS, Azure or GCP environments provisioned as code and monitored properly.

Database Architecture

Schema and query design that still performs when the catalogue grows.

API Design and Development

Well-documented APIs that other teams can integrate against without asking you.

Node.js Development Services

Services and APIs built to handle product logic and third-party load reliably.

React Development Services

Component-driven frontends built for maintainability, not just launch day.

How we work

Understand the business before the software

How the company makes money, who the customer is, what the competition already does well, and which part of that is worth attacking first. Software built without this is a feature list rather than a product.

Cut the scope to a first release that is worth shipping

A product cannot match a competitor's full feature set on day one. If it tries, the release date arrives after the opportunity has gone. We agree the slim version that delivers real value, and we are deliberate about what waits.

Define roles and visibility before the first screen

Who sees what, who can change it, and what happens at the boundary between accounts. Permissions bolted on afterwards leak, and the fix touches every query in the application.

Build one thin slice end to end

A single real workflow working properly through every layer, including the conditions nobody demos: empty, loading, partial, failed, expired and exceeded. It exposes the architectural decisions while they are still cheap to change.

Verify rather than assume

Tests around the paths that carry consequences, plus a security review. Code is now produced faster than teams can check it, and the constraint has moved from writing software to being confident in it.

Release, then keep releasing

A small group of real users first, watched closely, then wider. What they do decides what gets built next, and the products that win are the ones that keep shipping after the first version rather than the ones that launched with the most features.

Est. engagement duration:
40 to 80 working days
Avg. team size:
2 to 4 people

Where this isn't the right fit

If an off-the-shelf product does what you need, buy it. Custom software means owning security, updates and every future change, and that only makes sense where the standard options genuinely do not fit the way you work.

If nobody on your side can make decisions quickly, the schedule will not hold. Our projects are usually paced by how fast answers arrive rather than by how fast we build, which is why we ask for access to the business rather than a specification. And if what you actually need is a website with a form on it, this is a heavier answer than the question deserves.

Projects we've delivered

2023

B2B Marketplace Platform Design

Business and Fintech
Technology
2022

AI Travel Planning Assistant with MCP Server

Technology
2022

No-Code AI Platform on Google Cloud and AWS

Technology
2020

Online Therapy Platform Design

Healthcare and Wellbeing

Frequently asked questions

How long does a fintech product take to build?

Do you work with regulated financial companies?

How do you handle security in financial products?

What is different about building fintech software?

Can you build telehealth features?

Do we need to be HIPAA compliant, and can you build for it?

What is a progressive web app, and do we need one?

Do you build MVPs for startups?

How long does a web application take to build?

How do we choose between web app development agencies?

What does a web app development agency actually deliver?

Do you design B2B SaaS and internal tools, or only consumer products?

Do you design for regulated industries like healthcare and fintech?

Related services

A web app your customers will open twice. We will size the first release with you.