Software engineering studio

We make software that moves markets.

From complex integrations to intelligent automation and production-ready products, Nerdla engineers the systems businesses depend on to move forward.

  • Custom platforms
  • Integrations
  • Payments
  • Practical AI
  • Our own products
Invoiceur for Mac, a native invoicing app built by Nerdla, showing invoices, an open invoice and revenue insights
Invoiceur for Mac
Permint organizer dashboard, an access-commerce platform built by Nerdla, with demo data
Permint · launching soon

Proof through engineering

What happens when we get involved.

Anonymized engagements, told as engineering stories: the problem, the decisions and what changed.

All case studies
Distribution

Connecting Legacy Accounting to Modern Commerce

A regional distributor of truck and industrial parts

  1. QuickBooks Desktop
  2. Web Connector
  3. Integration service
  4. AI categorizer
  5. Catalog + vectors
  6. Storefront

Thousands of accounting-only items became a categorized, typo-tolerant storefront, and web orders now reach QuickBooks Desktop without re-keying.

Read the case study

Financial services

Engineering Reliable Payment & Fulfillment Workflows

A regional consumer financial-services platform

  1. Cardholder
  2. 3D Secure 2
  3. Server-to-server response
  4. Verification
  5. Atomic state change
  6. Fulfillment guard

Replayed, forged and concurrent completions cannot produce a payment or a fulfillment, and gift card issuance can be frozen without stopping checkout.

Read the case study

Commerce

Adding a Multi-Vendor Marketplace to an Existing Platform

A regional consumer financial-services platform

  1. Buyers & sellers
  2. Platform
  3. Stock-sync queue
  4. Sync worker
  5. Commerce engine

Sellers can be onboarded, moderated and paid inside the existing platform, and stock reconciles even when the commerce engine is briefly unavailable.

Read the case study

Products we've built

We don't just build for clients. We ship and run our own software.

Our products are proof that we understand the whole lifecycle: strategy, engineering, launch, monetization and operations.

Invoiceur

Available

Professional invoices without adopting accounting software.

A native app for Mac, iPhone and iPad that makes it quick to bill clients, track what's been paid and see how the business is doing — with your data kept on your own devices.

For: Independent professionals and small practices on Apple devices

  • Invoices, clients and multiple business profiles
  • Full and partial payment tracking with overdue status
  • Insights dashboard and polished PDF layouts
  • Offline-first, with optional private iCloud sync
Invoiceur for Mac showing the invoice list, an open invoice with a partial payment and balance due, and the revenue insights panel
Invoiceur on iPhone showing a sent invoice with its line item, a partial payment and the balance due

Permint

Launching soon

Sell access to classes, events and services — and validate it at the door.

Organizers create offerings with availability windows, sell them through online checkout, and redeem secure QR passes from the web or iPhone. Payments go straight to the organizer's own Stripe account.

For: Studios, organizers and businesses that sell access to classes, events and services

  • Offerings with capacity and availability windows
  • Online checkout with Stripe Connect payouts
  • Signed QR passes, validated on the web or iPhone
  • Embed offerings on your own website

Screens show Permint's demo organizer with sample data.

Permint organizer dashboard with live offerings, purchases, revenue and passes to redeem (demo data)
A Permint access pass with QR code on a phone (demo data)

How we work

Engineered to last, not just to launch.

Because we operate our own products, we design for the day after launch: monitoring, support, change.

  1. 1

    Understand

    We start with the business problem, the people affected and the systems already in place — before proposing anything.

  2. 2

    Architect

    We choose the simplest design that will hold up: clear boundaries, explicit failure handling, nothing clever for its own sake.

  3. 3

    Build

    Working software early and often, reviewed with you, tested against the cases that actually go wrong in production.

  4. 4

    Operate

    We hand over systems your team can maintain — or keep running them for you, monitored and documented.

of hands-on engineering experience
19+ years
Founder, individual experience

A focused studio, led by an engineer.

Nerdla is led by Cecil Reid, who has spent 19+ years building production systems across finance, payments, commerce and AI. You work directly with the people who design and write the software, not with an account manager relaying messages.

About Nerdla

Start a conversation

Tell us what you're trying to fix.

Describe the problem in a few minutes. We'll read it properly, tell you honestly whether we're the right fit, and — if it makes sense — book a 30-minute discovery call.