Case studies

Production systems we've designed, built, or rescued.

We anonymize client identity by default — what's interesting is the system, the trade-offs, and what changed for the business. The technology is described as it actually shipped.

Payments / FinTech

·

Ongoing — multi-year engagement

Enterprise NetSuite-Integrated Payments Platform

A unified payment processing platform — card-present, card-not-present, ACH, recurring, and tokenized — built around NetSuite as the system of record and operated as the production stack of a US-based payment processor.

  • Go
  • Temporal
  • Vue 3
  • Vue 2 / Vuetify
  • TypeScript
  • NetSuite SuiteApp
  • SuiteScript 2.x
  • FreedomPay FCC
  • +6 more

Selected outcomes

  • ▸ Replaced four legacy backend services and four disconnected UI surfaces with one platform
  • ▸ Designed Temporal-orchestrated workflows for card processing with end-to-end retry, void, and refund support
  • ▸ Shipped MFA across the system — TOTP, WebAuthn/FIDO2, hardware keys, biometric prompts

Read full case study →

Logistics / NetSuite Software

·

Multi-year engagement

Multi-Carrier Shipping & Logistics Platform

A NetSuite-native shipping platform integrating FedEx, UPS, and other carriers into a single ratings, label-generation, and tracking workflow — used by businesses moving thousands of shipments per day.

  • TypeScript
  • NestJS
  • Angular
  • NetSuite SuiteScript 2.x
  • SuiteApp
  • AWS Lambda
  • AWS ECS
  • Docker
  • +4 more

Selected outcomes

  • ▸ Designed a carrier-agnostic abstraction so adding a new carrier is a contract change, not a rewrite
  • ▸ Shipped Angular admin app, NetSuite SuiteApp, and AWS server tier as a coordinated release pipeline with full CI
  • ▸ Diagnosed and worked around undocumented breaking changes in carrier APIs without disrupting customers

Read full case study →

Hospitality / Events

·

12+ months

Multi-Tenant Event & Ticketing Platform

A multi-tenant event management platform with Stripe-backed payments, Apple Wallet and Google Wallet ticket passes, QR-code check-in, and operational analytics — supporting multiple organizations on a single deployed system.

  • Go
  • Gin
  • Vue 3
  • Pinia
  • TypeScript
  • PostgreSQL 14
  • Stripe
  • Apple Wallet (PKPass)
  • +7 more

Selected outcomes

  • ▸ Built multi-tenant architecture supporting multiple organizations on a single platform deployment
  • ▸ Shipped Apple Wallet (PKPass) and Google Wallet pass generation for digital tickets
  • ▸ Integrated Stripe end-to-end with webhook signature verification and idempotent payment handling

Read full case study →

Private Equity Operations

·

Ongoing

Cloud-Native Multi-Entity Finance Management Application

A serverless, multi-entity financial management application — Vue 3 front-end, FastAPI on AWS Lambda, PostgreSQL — built for the operations side of a private investment portfolio.

  • Vue 3
  • TypeScript
  • Pinia
  • Vue Router
  • Python
  • FastAPI
  • AWS Lambda
  • PostgreSQL
  • +2 more

Selected outcomes

  • ▸ Designed multi-entity bookkeeping model that supports inter-company transactions and consolidated reporting
  • ▸ Built serverless backend on AWS Lambda for cost-proportional scaling across portfolio operations
  • ▸ Implemented role-based access control scoped per-entity for portfolio-company-level isolation

Read full case study →

Product Engineering / Own IP

·

Shipped — free & open source

KidDOS — A Real Computer, Shrunk to Kid Size

A fake computer inside your real one: a fullscreen CRT terminal with a real Unix shell, a virtual drive, BASIC, sandboxed C and Go, pixel graphics, and ARM assembly with a debugger — for children about 7 to 13, with nothing to break and no internet.

  • Rust
  • WebAssembly
  • wasmtime
  • wgpu
  • SQLite
  • EndBASIC

Selected outcomes

  • ▸ Ships on Mac, Windows and Linux
  • ▸ Sandboxing that lets kids run real C, Go and assembly safely
  • ▸ Every lesson, man page and game is open source

Product Engineering / Own IP

·

Shipped & operating

SkyPeck — The Body-Controlled Flying Game

Spread your wings in front of the camera, lean to turn, flap to fly. Pose detection runs entirely on the device — the camera never uploads anything — wrapped in a complete commercial operation: store, licensing, and cloud backend.

  • On-device pose detection
  • Next.js
  • ECS Fargate
  • PostgreSQL
  • Terraform
  • SES

Selected outcomes

  • ▸ Runs on iPad, iPhone, Mac and PC
  • ▸ Privacy by architecture — video never leaves the device
  • ▸ Full commercial stack: store, licensing API, infrastructure as code

Open Source Engineering

·

Ongoing

The Production Go SDK for FreedomPay Payments

The full payment lifecycle against FreedomPay's Commerce Connect gateway — sale, auth, capture, refund, void, tokenization, Level II/III commercial card data — in one dependency-free Go SDK, hardened inside a production point-of-sale stack and released as open source.

  • Go
  • Standard library only
  • FreedomPay FCC API
  • Bearer-token auth
  • Functional options pattern

Selected outcomes

  • ▸ Complete coverage of FCC transaction surface: sale, auth, capture, refund, void, cancel
  • ▸ Token management — create, update, refresh — with idiomatic Go ergonomics
  • ▸ Full Level II/III commercial card data support for B2B and corporate-card flows

Read full case study →

Open Source Engineering

·

Ongoing

The Go Bridge Between NetSuite and Everything Else

The open-source Go bridge that production systems use to talk to NetSuite — typed, hardened, battle-tested access to the ERP that runs the business. It is the connective tissue under the payments and shipping platforms elsewhere on this page, published so the integration patterns outlive any single engagement.

  • Go
  • Standard library only
  • SuiteTalk & RESTlets
  • HMAC-SHA256
  • NetSuite RESTlet
  • Functional options pattern

Selected outcomes

  • ▸ NetSuite's notoriously hostile auth handled once, correctly, so no integrator ever writes it again
  • ▸ Standard response envelope ({success, payload, error, errorCode}) for consistent error handling
  • ▸ Type-safe with strong typing on Go structs and interfaces

Read full case study →