Engineering Process

Fit Call first. Scope second. Build third.

We never pitch open-ended projects or generic software platforms. Our process follows four bounded, sequential steps designed to minimize risk and confirm financial return.

The Four Engagement Stages

01

Workflow Fit Call (Free)

Timeline: 15–20 minutes

A brief technical discussion to evaluate whether your current software subscriptions or operational bottlenecks warrant a formal review. We do not ask for credentials, there is no pitch deck, and if your stack is already lean, we tell you immediately.

Deliverable: Confirmation of whether a Review makes financial and operational sense.
02

SaaS & Workflow Review (£400 / $500)

Timeline: 2–3 business days

We analyze your software subscription ledger and one sanitized data export. We categorise each tool as keep, replace or build, calculate realistic hosting and maintenance costs, and highlight operational risks.

Deliverable: Written Review report with spend map, keep/replace/build decisions, and recommendations.
03

Scoped Workflow Pilot (From £2,500 / $3,000)

Timeline: 2–4 weeks

We implement one bounded workflow directly in infrastructure you control (such as your own cloud account or VPS). Includes data ingestion, validation rules, a human approval gate web interface, and an immutable audit trail.

Deliverable: Production-ready, tested software running in your private environment.
04

Handover & Optional Care (£750 / $950 /mo)

Timeline: Ongoing

We deliver full documentation, architecture diagrams, and runbooks so your team can maintain the code without us. If you prefer ongoing upkeep, our monthly Care package covers four maintenance hours and monthly reviews.

Deliverable: Complete code ownership, runbooks, and optional continuous maintenance.
Honest Engineering Boundaries

Why We Will Sometimes Advise You to Keep Your SaaS

Self-hosting adds hosting, maintenance and security work, so some tools should stay SaaS. We say so, and the Review shows the numbers either way.

Building custom internal software makes economic sense when per-seat pricing penalizes growth, when external APIs throttle core operations, or when proprietary business logic cannot be accommodated by commercial off-the-shelf software. For commoditised tools like office email or payroll tax compliance, continuing to rent is usually the superior business decision.

The Three Principles of Every Engagement

We don't build open-ended experiments or black boxes. Every workflow follows three strict engineering boundaries:

1

Bounded

One agreed scope, written down before any code is written. Fixed price once technical feasibility is confirmed on a sanitized sample export.

No scope creep. Written boundaries.
2

Controlled

Your infrastructure, your data. A mandatory human approval step before any consequential action is taken, and a permanent audit trail.

Human approval gate • Permanent audit log
3

Handed Over

Clean code, architecture diagrams, and runbooks so your team can run, inspect, and modify the software without us. You own it completely.

Documented runbooks. Zero lock-in.

Start With Step 01: The Free Fit Call

15–20 minutes to review your software subscriptions and see if any workflow is a credible candidate.

Book a Review

Start with a direct conversation or send us the tools you pay for. We reply with a scope and the next step.

Book a Fit Call on Cal.com →
Or email us directly with your list of subscriptions:hello@aethonex.com