Service

Headless E-Commerce

Next.js Storefront Engineering

Headless E-Commerce

Engineering High-Value Growth

End-to-end e-commerce development and conversion optimisation. From Headless Shopify to custom Next.js storefronts, we build focused sales machines. We systematically eliminate technical debt and optimize end-to-end data pipelines for sub-second rendering, superior conversion rates, and 100% data sovereignty. Engineered bespoke for ambitious B2B enterprises, SaaS builders, and mid-market leaders to drive verifiable enterprise value without vendor lock-in.

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Trusted by 40+ B2B companies

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Is your online store leaking revenue?

Every millisecond counts. We engineer high-performance, independent E-Commerce platforms with sub-second load times that maximize checkout conversions.

Verified Metric

70%

average cart abandonment rate due to friction and load times

Core Challenge & Solution

Your legacy webshop is losing revenue through invisible friction points.

Most e-commerce stores fail because they use bloated, monolithic templates (like standard WordPress/WooCommerce) that take 4+ seconds to load. In e-commerce, a 1-second delay decreases conversion rates by 7%. If your shop struggles with mobile responsiveness or clunky checkouts, you are actively paying for traffic that refuses to buy.

“An online store is not a digital catalog; it is a systematic sales engine. Our job isn't to make it look 'pretty', our job is to ruthlessly eliminate every single millimeter of friction between the user's intent and their credit card.”

Sarah Niemann·Director of Digital Commerce

Architecture Framework

The Frictionless Revenue Architecture

We don't just build stores; we engineer precisely optimized conversion pipelines.

Headless Decoupling

Separating frontend performance from backend logic for sub-second, app-like load times.

Checkout Minimization

Continuously pruning form fields and cognitive load to ensure the highest possible payment completion rate.

Data-Driven Upselling

Implementing intelligent, dynamic product recommendations based on real-time user behavior.

E-Commerce Latency & Friction Analyzer

Headless Cart Latency & Drop-Off Analyzer

Simulate how sub-second GraphQL Edge checkout pipelines eliminate abandonment friction and recover lost top-line e-commerce GMV.

Edge GraphQL (50ms) vs Legacy REST (1,800ms)

Cart & Checkout API Response Latency450ms

50ms (Edge GraphQL)2,500ms (Legacy REST)

Average Order Value (AOV)€120

€30€500

Monthly Unique Store Visitors65,000 Visitors

10.000500.000

Projected Checkout Abandonment+5% vs SLA

70%(3,867 lost orders)

Monthly Lost Revenue Friction

-€30,498

/ mo (254 orders / mo)

Annual Recoverable GMV (Edge GraphQL)

+€365,976

/ yr (100% Top-Line Pipeline)

4-Stage Checkout Conversion Pipeline Telemetry

5,525 shoppers (8.5% Add-to-Cart)

1. Add to Cart

5,525100%

2. Shipping Address

-961

4,56483%

Drop-off17%

3. Payment Gateway

-1,543

3,02155%

Drop-off34%

4. Order Confirmed

-1,341

1,68030%

Drop-off44%

Revenue Recovery Engine

Stop losing high-intent shoppers to legacy checkout latency

Sub-second GraphQL Edge checkouts eliminate drop-off spikes and recover lost top-line GMV. Let our performance engineers audit your checkout funnel.

Audit Checkout Latency & GMV Leakage View Case Studies

E-Commerce ROI

Headless Cart Latency & Abandonment Analyzer

Initializing Engine...

Tangible Outputs

Concrete Deliverables & 100% IP Ownership

No vague consulting buzzwords. Upon delivery, you maintain 100% ownership of your codebase, design tokens, telemetry pipelines, and documentation.

Supported Execution Stack

Next.jsShopify PlusMedusa.jsStripeTailwind CSS

Frontend01

Decoupled Next.js 15 E-Commerce Storefront

Sub-second product catalog with instant faceted search, dynamic variants, and zero layout shift on mobile.

100% IP Ownership

Checkout02

Ultra-Low Latency Headless Checkout Flow

Stripe Elements / Commercelayer integration with 1-tap Apple Pay/Google Pay and sub-400ms TTFB.

100% IP Ownership

Integrations03

PIM & ERP Real-Time Synchronization Connector

Live inventory sync, multi-currency pricing, and multi-warehouse logistics routing.

100% IP Ownership

CRO04

Conversion & Cart Abandonment Mitigation Engine

Optimistic UI mini-cart drawer, inline address autocomplete, and zero cognitive checkout friction.

100% IP Ownership

Analytics05

Server-Side E-Commerce Analytics & CAPI Pipeline

100% privacy-compliant server-side tracking via Meta CAPI and GA4 Measurement Protocol.

100% IP Ownership

Measurable Benchmark Telemetry

SLA AUDITABLE

Checkout Latency Reduction

< 0.4s

Sub-Second Speed

Cart Abandonment Recovery

+24%

Baymard Optimized

Mobile Conversion Uplift

+35%

Optimistic UI

Project Fit Matrix

Who This Service Is Designed For

Ideal for your organization if:

E-Commerce brands, D2C merchants, and B2B distributors (500k € – 20M € GMV) suffering from slow monolithic store checkouts.
Businesses seeking to eliminate high mobile cart abandonment and plugin bloat on Shopify, Shopware, or WooCommerce.
Merchants demanding sub-second product pages, international multi-currency checkouts, and custom ERP workflows.

Not suitable if:

Dropshippers looking for €30 pre-made themes with low order volume.
Small hobby shops generating fewer than 20 orders per month.
Businesses unwilling to decouple their presentation layer from legacy monolithic backends.

Transparent Pricing

Engagement Models & Delivery Sprints

Fixed Scope Packages

46 Hours

Tier I: Headless Storefront Core & Fast Checkout

Up to 50 products, Shopify/Shopware API integration, optimized slide-out cart, 3 payment gateways, 100/100 mobile PageSpeed.

Package Investment:

6,440 €net / fixed

Guaranteed deliverables

Clearly defined scope & milestone planning

100% code & IP ownership

100% Remote & Async-First (GitHub / Linear)

Sub-second stack (Next.js 15 / Astro)

Optional Add-ons:

Algolia / Meilisearch Instant Faceted Search+3,500 €

B2B Customer Tier & Wholesale Pricing Engine+3,220 €

100% Investment Security

Inquire Scope

Tier II: Instant Search & B2B Wholesale Logic

Up to 500 products, Algolia/Meilisearch instant search, subscriptions & bundles, real-time ERP inventory sync, Storyblok CMS.

Package Investment:

11,760 €net / fixed

Guaranteed deliverables

84 hours dedicated senior capacity

Comprehensive architecture & scaling scope

Automated CI/CD & Playwright testing pipeline

GDPR sovereignty & German ISO-27001 hosting

Optional Add-ons:

Algolia / Meilisearch Instant Faceted Search+3,500 €

B2B Customer Tier & Wholesale Pricing Engine+3,220 €

100% Investment Security

Inquire Scope

175 Hours

Tier III: Enterprise Composable Commerce & Global Multi-Store

Unlimited SKUs, dedicated B2B wholesale portal, tier pricing, PIM/ERP real-time sync, multi-currency & localized stores, 100% IP handover.

Package Investment:

24,500 €net / fixed

Guaranteed deliverables

175 hours enterprise full-service quota

Mission-critical 24/7 redundancy & SLA guarantee

Priority engineering & unlimited revisions

Full multi-domain & cross-silo integration

Optional Add-ons:

Algolia / Meilisearch Instant Faceted Search+3,500 €

B2B Customer Tier & Wholesale Pricing Engine+3,220 €

100% Investment Security

Inquire Scope

Predictable Execution

Our 4-Step Engineering Process

Architecture

Selecting the headless stack and mapping the data flow (PIM, ERP, CRM).

Engineering

Building a sub-second load time React frontend decoupled from the backend.

Conversion

Integrating trust signals, one-click checkouts, and behavioral triggers.

Scaling

Continuous A/B testing and infrastructure stress-testing.

Direct Answers

Frequently Asked Questions (FAQ)

What is Headless E-Commerce and how does the decoupled architecture operate?

Headless e-commerce decouples the Next.js frontend presentation layer from the commerce backend (Shopify, Shopware, Medusa) via high-speed GraphQL and REST APIs.

Why does a Headless Next.js storefront dramatically boost conversion rates?

By delivering instant sub-second page transitions, zero layout shift, and frictionless mobile slide-out checkouts, eliminating bounce rates during high-intent purchase funnels. Every 100ms reduction in load time increases e-commerce revenue by 1% to 3% on average.

Can an enterprise keep its existing Shopify Plus or Shopware 6 backend?

Yes, completely. Your product catalog, payment processing, inventory, and fulfillment remain intact in your existing backend while we build a bespoke, high-converting Next.js frontend.

How much does a Headless E-Commerce storefront cost at MyQuests?

Headless storefront projects start at 6,440 € (Tier I: 46h) for high-speed direct-to-consumer setups, and range to 11,760 € (Tier II: 84h) – 24,500 € (Tier III: 175h) for enterprise B2B multi-store architectures.

What is the difference between Composable Commerce and Headless Commerce?

Headless separates frontend from backend. Composable commerce goes further, selecting best-of-breed modular microservices for search (Algolia), CMS (Storyblok), and payments (Stripe).

How are custom B2B customer price tiers and live ERP stock levels synchronized?

We connect edge middleware directly to your ERP via WebSockets or cached Redis endpoints, streaming personalized account pricing in milliseconds upon user authentication.

Does Headless E-Commerce introduce any SEO indexing disadvantages?

No. With Next.js Server-Side Rendering (SSR) and dynamic Schema.org Product markup, headless storefronts achieve superior indexation and higher search rankings than traditional themes.

What is the typical delivery timeline for a Headless Storefront relaunch?

A streamlined storefront with core catalog and checkout launches in 4 to 6 weeks. Enterprise omnichannel platforms with complex ERP integrations deploy in 8 to 12 weeks.

Which checkout solutions provide the highest conversion rates for headless stores?

We utilize Shopify Checkout Extensibility, Stripe Custom Flow, or Shopware Native Checkout, guaranteeing 100% PCI-DSS compliance and one-click payment adoption (Apple Pay, PayPal).

Why do standard monolithic e-commerce themes fail on large catalogs (>50,000 SKUs)?

Monolithic themes execute heavy database queries on every page request, causing server bottlenecks, slow facet filtering, and crawl budget exhaustion by search engines.

Why do you exclusively build with Next.js, React, and Astro instead of WordPress or Typo3?

We rely uncompromisingly on modern frontend architectures. Legacy PHP monoliths introduce security vulnerabilities and slow rendering. With Next.js 15, React 19, and Astro, we deliver sub-second performance, maximum scalability, and 100% long-term investment protection.

How are your project and package prices structured?

Our project and maintenance packages are built on clearly defined milestones and fixed deliverables. With our modular packages, you receive 100% budget certainty, transparent deliverables, and full IP code ownership with zero hidden fees.

Do we own 100% of the intellectual property, code, and deliverables upon project completion?

Yes, completely. Upon full payment, you receive 100% full ownership of all source code, Git repositories, design files, campaign accounts, and data. There are zero licensing dependencies or vendor lock-ins.

How does day-to-day collaboration work in practice?

We operate 100% remote, digital, and async-first via GitHub, Linear, Notion, and Loom. Touchpoints are focused into compact, outcome-driven sprint reviews, eliminating costly travel and meeting overhead.

Do you provide ongoing support and SLAs after launch?

Yes. Through our transparent SLA packages starting at 350 € / month, we provide continuous uptime monitoring, encrypted security backups, Web Application Firewall (WAF) tuning, and core framework updates.

Stop Losing Sales to Friction.

Let's engineer a high-performance storefront that maximizes your conversion rate.

Request Storefront Audit Deployed Systems

Joint Projects

100% GDPR Compliant

ISO 27001 Standard

German Engineering