Engineering Studio · Tracking · Checkout · APIs

Tracking and checkout
engineered properly.

We are a small developer studio building server-side tracking pipelines, custom checkout flows and conversion API integrations for Shopify, Meta, TikTok and GA4 — precise, fast and privacy-compliant.

Server-side first GDPR-compliant Shopify Plus ready Fixed-scope projects

Platforms and APIs we work with every day

ShopifyMeta CAPIFacebook PixelInstagram AdsTikTok Events APIGA4KlaviyoStripe
What we usually find

Most stacks lose data long before the ad platform sees it.

  • ✕Browser-only pixels blocked by iOS and ad blockers
  • ✕Duplicate events destroying match quality
  • ✕Checkout extensions bolted on without a data contract
  • ✕No logs, so nobody notices when events stop
How we build it

Server-side. Observable. Documented.

  • ✓Shopify webhooks and checkout events into one pipeline
  • ✓Deterministic event IDs and deduplication
  • ✓SHA-256 hashed PII before anything leaves our servers
  • ✓Live logs, retries and alerting from day one
Architecture

Four sources.
One clean stream.

Browser events, Shopify webhooks, server calls and platform confirmations are merged, deduplicated and normalised into a single event contract — so every destination receives exactly the same truth.

  • ✓Automatic event deduplication
  • ✓Hashed PII (SHA-256) by default
  • ✓Retry logic with exponential backoff
  • ✓Full audit logs and replay
Services

What we build.

Six areas we go deep in — from the first webhook to the final dashboard.

⚡

Server-Side Tracking

Conversion pipelines for Meta CAPI, TikTok Events API and GA4 — resilient to ad blockers and iOS restrictions.

◆

Checkout Engineering

Shopify Checkout Extensibility, custom checkout UI extensions, upsells and payment-flow instrumentation.

✦

Shopify Apps

Embedded apps, Admin API automations, webhooks, metafields and theme app extensions built to Shopify standards.

◉

API Integrations

Custom middleware between shops, ERPs, CRMs and ad platforms — typed, tested and monitored.

▲

Data & Attribution

Event schemas, identity stitching, match-quality tuning and dashboards that reflect real revenue.

◈

Privacy Engineering

Consent-aware tracking, hashing, EU data residency and documentation your legal team can actually read.

Pipeline

From click to platform — in < 200ms.

01
Browser
User adds to cart
02
Shopify
Webhook fires in real time
03
CAPIXE
Dedupe · hash · validate
04
Platforms
Meta · TikTok · GA4
Observability

Every event, visible in real time.

Each system we ship comes with live logs, match-rate reporting, retries and error tracking.

client project / event stream Live
Events today
12,847
Delivered
12,812
Match rate
98.4%
●Purchase$89.00 · order #4521
meta:200 ✓
●AddPaymentInfocheckout token · 1f9c
tiktok:200 ✓
●AddToCart3 items · $124.00
meta:200 ✓
●ViewContentsku-441 · tee-black
ga4:200 ✓
●Purchase$42.50 · order #4520
meta:200 ✓
98.4%
Avg. event match rate
<200ms
End-to-end latency
40+
Shipped integrations
6 yrs
Commerce engineering
Selected work

Projects we shipped.

Anonymised on request — happy to walk you through the technical details on a call.

Shopify Plus · Meta CAPI

Server-side tracking rebuild for a DTC sneaker brand

Replaced a browser-only pixel setup with a webhook-driven pipeline, deterministic event IDs and consent-aware hashing.

  • Match quality 6.2 → 9.4
  • 34% more tracked purchases
  • Zero duplicate events
Checkout Extensibility

Custom checkout with post-purchase upsell

Checkout UI extensions, payment-info instrumentation and an upsell step wired into the same event contract.

  • +11% AOV
  • No checkout.liquid legacy
  • Full event coverage
TikTok Events API · GA4

Multi-platform attribution for a 7-figure store

One normalised stream feeding Meta, TikTok and GA4, with deduplication and a shared identity graph.

  • 3 destinations, 1 schema
  • 99.7% delivery
  • Live error alerting
Middleware · Admin API

ERP ↔ Shopify sync service

Typed middleware syncing orders, stock and fulfilments with idempotent jobs, retries and audit logs.

  • Nightly → real time
  • Idempotent by design
  • Full audit trail
Process

How we work.

01

Audit

We map your current stack, events and gaps — and hand you a written findings document.

02

Architecture

Event schema, identity model and destinations are defined before a single line ships.

03

Build

Implementation in short cycles, with a staging shop and verifiable test events.

04

Handover

Docs, dashboards, alerting and a walkthrough with your team — plus optional retainer.

Stack

Tools of the trade.

Commerce
  • Shopify Plus
  • Checkout Extensibility
  • Admin & Storefront API
  • Stripe
Marketing APIs
  • Meta Conversions API
  • TikTok Events API
  • GA4 Measurement Protocol
  • Klaviyo
Engineering
  • TypeScript
  • React
  • Node & edge workers
  • Postgres
Operations
  • Structured logging
  • Retry queues
  • Alerting
  • Load testing
"

Within two weeks our Meta match quality went from 6.2 to 9.4. The algorithms finally optimise on real buyers — and for the first time we can prove where every event went.

M
Max Hartmann
Head of Performance · DTC brand
FAQ

Common questions.

What kind of projects do you take on?+

Server-side tracking pipelines, Shopify checkout and app work, and custom API integrations between shops, ad platforms and internal systems. Typical engagements run from two weeks to a few months.

Do you work with platforms other than Shopify?+

Shopify and Shopify Plus are our home turf, but the pipeline work applies to any commerce stack that can emit server-side events — including headless setups and custom backends.

Which ad platforms do you integrate?+

Meta Conversions API, TikTok Events API, GA4 Measurement Protocol and Klaviyo are the most common. Additional destinations reuse the same normalised event schema.

How do you handle privacy and GDPR?+

Consent state travels with every event, personal data is SHA-256 hashed before leaving our infrastructure, and processing is documented so your legal team can sign off.

How do you price engagements?+

Fixed-scope projects after a short paid audit, or a monthly retainer for ongoing engineering and monitoring. You always get an estimate before we start.

Who owns the code?+

You do. Everything ships into your repositories and accounts, with documentation and a handover session included.

Let's talk about your stack.

Send us a short description of your setup and goal. You get a technical reply — not a sales deck — within one working day.