Skip to main content
WassliSystems
Request a consultation
WassliSystems
Request a consultation

Custom development

Custom software, when the workflow is the advantage.

Most needs are met by configuring a platform. Some aren’t: a pricing engine, a scheduling model, a regulated workflow that defines how you compete. For those we build bespoke software and hand you the code.

  • TypeScript
  • Python
  • PostgreSQL
  • React
  • Node.js
  • CI/CD
  • Automated tests
  • Cloud infrastructure

01 — The problem

Bending platforms until they break.

When a CRM or ERP is customised far beyond its design, every upgrade is risky and every change slow. The business ends up serving the software.

Custom software has its own risks: unclear scope, no tests, and a codebase only one developer understands. Those are process problems, and we manage them explicitly.

02 — What we build

What the engagement delivers.

Specification

Users, roles, screens, rules and integrations written into a specification you approve before build.

Prototype

Clickable prototype tested with real users to settle workflow before code.

Iterative build

Two-week iterations with a working demo on staging, automated tests and code review.

Integration

APIs to your CRM, ERP and accounting so the new system isn’t an island.

Handover

Code, infrastructure, documentation and a transition period with your team or support provider.

03 — Configuration vs custom

What is set up, and what is written.

Configuration

  • Cloud accounts, domains and CI/CD
  • Authentication provider and SSO
  • Monitoring and backups

Custom development

  • Application code, front and back end
  • Data model and migrations
  • Test suites
  • Integration services

04 — Typical effort

What it usually takes.

Ranges from comparable projects. You get a fixed-scope quote after a 30-minute call.

Specification and prototype2–4 weeks
First production release8–16 weeks
Ongoing developmentmonthly retainer

05 — What you own

Yours at handover.

  • Source code repository
  • Infrastructure accounts
  • Specification and architecture docs
  • Test suites and deployment pipelines

FAQ

Questions about custom software.

How do you price custom software?

Fixed scope per phase. The specification and prototype phase produces the scope for the build, which is then quoted fixed.

Who owns the intellectual property?

You do, on payment, including source code and documentation.

What if requirements change mid-build?

Changes are written up and re-quoted before work starts. Smaller changes swap with lower-priority scope.

Can our own developers take it over?

Yes. The codebase is documented and tested so another team can maintain it.

Related

Often paired with

Next step

Start with a 30-minute call.

Tell us what you run today and where it breaks. You get a fixed-scope quote afterwards. We don’t publish rates, because the honest price depends on scope.

Enquire

Talk to us about Custom software development worldwide.

We have started the message for you. Add what you run today and we will reply within one business day.

So we can call you back the same day. Country code is filled in for you.
We reply within one business day.
Request a consultation