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§ 04 — Business Software

Internal tools
your team
actually uses

The operational software a growing company needs but never has time to build — invoicing portals, ops dashboards, CRMs, billing systems. I build the back-office tools that compound your team's leverage. Usually on Retool or with bespoke code, depending on what fits.

The engagement
2 — 6 months
Project · fixed-fee per tool

Per tool. Multiple parallel tools negotiable.

Booking Q4 2026
What's included

The work.

№01
Custom CRMs & dashboards

Built on Retool / Internal / bespoke

№02
Workflow automation

Zapier, n8n, custom backends

№03
Stripe & billing systems

Subscriptions, metering, invoicing

№04
Slack & ops integrations

Alerting, approvals, daily digests

The process

How it's built.

Same rhythm every engagement — clear phases, weekly demos, written deliverables. Nothing is "in review" forever.

01
Workflow audit

Shadow your team for a week. Find the manual steps, the spreadsheets passed by email, the Slack messages that should be tickets. Prioritise by hours-saved.

02
Prototype

Sketch the tool in Retool by week two. Real data, real workflows. Your team uses it before it's "done" — feedback is fast.

03
Productionise

Auth, audit logs, error handling, the unsexy stuff. Either stay in Retool or graduate to bespoke code if the tool justifies it.

04
Handover

Your team — or a friendly engineer — owns it. I document everything. Optional ongoing maintenance arrangement.

Deliverables

What you
walk away with.

Built to own
Documented, handed over, yours to run
  • ▸ 01
    Bespoke internal app (Retool / Internal / custom React)
  • ▸ 02
    Authentication, role-based permissions, audit log
  • ▸ 03
    Stripe / billing integration (subscriptions, metering, invoicing)
  • ▸ 04
    Workflow automation (n8n, Zapier, or custom backends)
  • ▸ 05
    Slack/Linear/Email alerting & approvals
  • ▸ 06
    Live data dashboards from your warehouse
  • ▸ 07
    Written runbook + ongoing maintenance handoff
Tools

Tool-agnostic where possible. Opinionated where it matters.

Retool
Internal
React
Node
Stripe
n8n
Zapier
Slack API
Linear API
Common questions

Before you ask.

Retool vs. bespoke — which?+

Default to Retool. Move to bespoke when the tool is customer-facing, performance-critical, or going to outlive Retool's pricing curve.

Will we be locked into Retool?+

No more than you're locked into any SaaS. Most Retool apps can be rewritten in a week of React work if you need to leave.

Can you replace our CRM?+

I'd rather not. CRMs are calcified for good reason. I build the tools that surround your CRM — better workflows on top, better dashboards underneath.

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Ready to ship?

Tell me about
the work.

rob@chiefgrowthengineer.comCall me now