DevSimplex

Software development · We build itCustom software, built with you in the loop.

We build web apps, internal tools, client portals, mobile apps and AI automations for businesses that want the work done properly. You describe the problem; we turn it into a spec you approve before any code is written.

AI does the drafting and the repetitive work, so projects move faster. Senior engineers review every change, and you try a working preview before each release goes live. Every build runs in the Lab, so the plan, the progress and every decision are in one place you can open any time.

Talk to us about software development

What we do

  • Custom software & MVPs

    Web apps, internal tools, dashboards, client portals and APIs. Fixed scope: you know what you get before we start.

    • A written spec and task plan you approve first
    • Working previews before each release
    • Hosting, monitoring and a documented handover

  • AI automation & agents

    The repetitive work that eats your team’s week, automated across the systems you already use, with people approving anything that matters.

    • The workflow mapped as it really runs today
    • Integrations with the tools you already use
    • A log of every action the automation takes

  • Web & mobile apps

    Customer-facing apps that work on every screen, with the backend, admin and integrations behind them.

    • One codebase for iOS, Android and the web where it fits
    • Admin screens and APIs behind the app
    • App store publishing and updates

  • Code & architecture audits

    An honest review of what you have, written in plain language, with a short plan ranked by impact.

    • Code, architecture and dependency review
    • Risks ranked by impact, in plain language
    • A short plan your own team can act on

Good fit for: A new product, an MVP to test with real users, a defined feature, or a process your team repeats every week.

How it works

  1. 01

    Brief

    You describe the problem, who has it and what done looks like. No spec needed.

  2. 02

    Plan

    AI drafts the spec and tasks, our engineers refine them, and you approve or send it back.

  3. 03

    Build

    You watch progress on the task board and try previews as features land.

  4. 04

    Ship

    You approve the release, we put it live, and we keep it running if you want us to.

Questions

How much does custom software cost?

It depends on the scope, from a small task to a full product. After the brief we write a spec, and you get a quote for that agreed scope before any build starts. Changes later go through a change request you approve, so the price never moves without you.

Who owns the code?

You do. The code, the data and the accounts are yours, and the handover includes everything another team would need to carry on.

Which technologies do you use?

Proven, mainstream tools, for example TypeScript, React and Next.js, Node.js, Python, PostgreSQL and Docker, so any competent team can take the work over. If you already have a stack, we work in it.

Can you work on software another team built?

Yes. We usually start with a short code and architecture audit so we both know what we’re taking on, then work through a backlog you prioritise.

From Insights

The other two Devs

Tell us where you are.

A person from our team will reply, usually within one working day, with a suggested first step.

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