Jenga_Systems

B2B systems development

Business-critical software, built to be run — not just delivered.

/ The problem

Most custom software fails after handover, not before it. A contractor ships a codebase, the invoices stop, and six months later nobody can deploy it, extend it, or explain why the numbers in two reports disagree.

B2B systems carry money, inventory, and contractual obligations. They need the discipline of a product — versioned APIs, migrations, monitoring, an audit trail — even when they serve a single business.

/ How we deliver

We start with the data model and the money flow, because that is where B2B systems live or die. Screens come last. Every engagement begins with a short discovery phase that maps the real process — including the informal spreadsheet steps everyone forgets to mention.

We build in increments that go to production early, so the system is validated against real operations from the first month. Everything ships with tests, deployment automation, and documentation. When we hand over, your team can run it — or we can keep operating it under a support agreement.

/ What we build with it

Distribution & inventory platforms

Stock, orders, pricing, and agent networks in one system, with an audit trail behind every movement.

Sacco & lending back-offices

Members, loans, repayments, and statements — reconciled to the shilling, not to the nearest spreadsheet.

Field-force tools

Offline-capable apps for agents and technicians who report from places with two bars of signal.

Workflow digitisation

Approvals, documents, and hand-offs that currently live in email threads, moved into a system that remembers.

/ Capabilities

  • 01.1

    Discovery, process mapping, and system design

  • 01.2

    Web platforms, dashboards, and internal tools

  • 01.3

    Domain modelling for money, inventory, and workflow

  • 01.4

    Versioned REST APIs and service integrations

  • 01.5

    Automated testing, CI/CD, and observability

  • 01.6

    Post-launch operation and support agreements

/ Spec sheet

The short version

How this service runs, in title-block form. Ask us for the long version.

Engagement
Fixed-scope discovery → milestone delivery
Stack
Typed backends, relational data, proven tools
Quality
Automated tests + CI/CD from first release
Ownership
Code, infrastructure, and docs are yours
After launch
Runbook handover or operate agreement

/ How delivery runs

  1. 1

    Discovery & mapping

    We sit with the people who run the process today and map what actually happens — including the steps that only exist in someone’s head.

  2. 2

    Model & architecture

    Data model, money flow, and integration points designed and agreed before a single screen is discussed.

  3. 3

    Incremental build

    The system reaches production in weeks, not quarters, and grows against real operations with tests and CI/CD from day one.

  4. 4

    Handover or operate

    Your team takes it over with runbooks and training, or we keep running it under a support agreement.

/ Common questions

Do you take over existing systems?

Yes. We audit the codebase and infrastructure first, stabilise what is running, then agree a roadmap — rewrite is the last resort, not the first proposal.

How do engagements work commercially?

Fixed-scope discovery first, then either milestone-based delivery or a monthly build-and-operate retainer. You own the code and the infrastructure accounts either way.

What stack do you use?

Boring, proven technology chosen per project — typed backends, relational databases, and infrastructure that a small team can actually operate. We optimise for the decade after launch, not the demo.

/ Next step

Talk to us about b2B systems development

Describe where you are — greenfield, half-built, or on fire. We answer with a technical read within one working day.

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