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ServicesSoftware Development
03 — Engineering

Software built to be maintained.

Custom systems, APIs and internal tools engineered with as much care for the codebase as for the launch date.

SERVICE / 03PRISMELO

Engagement

Project or retainer

Scope

Product, platform or system

Output

Shipped software & docs

Overview

The launch is the midpoint

Most software problems are maintenance problems wearing a launch costume. We build with that in mind: clear module boundaries, typed interfaces, tests around the paths that matter, and documentation that explains decisions rather than restating code.

Work is delivered in increments you can review and use, not a single handover at the end. You see the system take shape, and course corrections stay cheap.

01

Incremental delivery

Working software at each stage, reviewed against agreed acceptance criteria.

02

You own everything

Code, infrastructure configuration and documentation are handed over fully, in your repositories.

Capabilities

What this engagement covers.

Scope is agreed per project. The list below is the typical surface area, not a fixed package.

01

Backend systems

Services, data models, authentication, background jobs and the operational concerns that keep them dependable.

02

Frontend applications

Typed, component-driven interfaces that stay coherent as features accumulate rather than drifting into inconsistency.

03

API design & integration

Versioned APIs and third-party integrations with explicit contracts, error handling and retry behavior.

04

Internal tools

Operational interfaces and automation that remove manual work from the teams running your business.

05

Modernisation

Untangling legacy paths incrementally — with tests in place first, so improvement does not become risk.

06

Maintenance & performance

Ongoing fixes, dependency work, profiling and the unglamorous improvements that compound over time.

Process

How the engagement runs.

A sequence that keeps scope honest and progress visible from the first week.

  1. 01

    Problem definition

    Agree what the software must do, who uses it and how success will be judged — before architecture is chosen.

  2. 02

    Architecture & plan

    Set system boundaries, data model, technology choices and a delivery sequence with checkpoints.

  3. 03

    Build in increments

    Ship reviewable slices with tests, code review and a running environment from early on.

  4. 04

    Quality gates

    Type checking, automated tests, accessibility and performance checks applied to the flows that carry real weight.

  5. 05

    Handover & support

    Documentation, walkthrough and an agreed support period so the team taking over is not guessing.

Deliverables

What you receive.

Everything is written for the people who will use it — your engineers, your leadership and whoever operates the system afterwards.

  • Full source code committed to your repository
  • Architecture and technical decision notes
  • Automated tests for core business flows
  • Environment setup and deployment pipeline
  • API and integration documentation
  • Handover walkthrough with your team

FAQ

Questions worth asking.

Do you work with existing codebases?

Yes. We start with a short technical review, agree the highest-value work, and improve the codebase in place where that is safer than a rewrite.

Who owns the code?

You do. Work is delivered in your repository with full rights and no lock-in to our tooling.

What stack do you use?

Primarily TypeScript across the stack — Next.js and React on the web, Node-based services and PostgreSQL or equivalent data stores — chosen per project rather than imposed.

Can you work alongside our team?

Yes. We can own a workstream, pair with in-house engineers, or operate in a review capacity depending on what is useful.

Have a scope in mind?

Tell us what you are working on and we will tell you honestly whether software development is the right starting point.