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Development Studio

High-performance e-commerce engines that drive transactions.

We construct secure, scalable e-commerce platforms with customized checkout routes, ERP sync, Swiss payment gateways, and multi-currency capabilities.

Free 30-min discovery call
Fixed-price contracts
NDA on request
professionaldesigners.ch
55+ Store EnginesTrack Record
6–12 WeeksAvg. Timeline

Trusted by enterprise clients across 18 countries

ALLIANZ NOVARTIS UBS GROUP ABB LTD NESTLÉ ROCHE
What is Ecommerce App Development?

Strategic engineering for transactional digital products.

E-commerce requires absolute stability and performance. A 100ms delay in page load speeds directly impacts cart abandonment rates. System crashes during peak traffic cost real revenue.

At Professional Designers, we engineer robust e-commerce solutions using modern headless API architectures (Next.js, Shopify Plus, custom API integrations) to guarantee extreme loading speed and enterprise-grade security.

Every e-commerce engine includes integration with Swiss payment gateways (PostFinance, Twint, Datatrans) and local accounting systems.

Fast headless API design
Swiss payment integrations
ERP & inventory sync
Custom cart checkout paths
99.9% transactional uptime
PCI-DSS compliance security
Ecommerce App Development Development Studio
55+ Store EnginesTrack Record
PCI-DSS SecureQuality Standard
4.9/5Client Rating
6–12 WeeksAvg. Timeline
What's Included

Every deliverable. No hidden extras.

Our Ecommerce App Development packages are comprehensive by default. You'll never pay extra for something that should have been included from the start.

Ecommerce Store Build

A complete, high-performance e-commerce platform built with custom styles, modular sections, and fast loading layouts.

  • Headless Next.js storefront
  • Mobile-first design templates
  • SEO-friendly page structure
  • Asset optimization setups

Swiss Payment Setup

Integration with TWINT, PostFinance, Datatrans, Stripe, and global credit card networks with secure checkout pages.

  • Swiss gateway integrations
  • PCI-DSS secure checkouts
  • Multi-currency support (CHF, EUR)
  • Apple Pay & Google Pay

Cart & Checkout Paths

Customized checkout paths designed to streamline steps, pre-fill addresses, and reduce cart abandonment volume.

  • Single-page checkout flow
  • Pre-filled address fields
  • Abandonment email automation
  • Security validation elements

Product Catalog Hub

A robust product management dashboard pre-configured with catalog rules, variant options, and search optimization.

  • Unlimited product variations
  • Bulk CSV upload setup
  • SEO meta tagging setup
  • Tax calculation rules

Compliance & SLA Docs

Documentation detailing PCI-DSS compliance verification, security audits, database encryption, and hosting SLA guidelines.

  • PCI compliance certificate
  • Database encryption rules
  • Uptime monitoring setup
  • Post-launch SLA agreement
Our Process

Structured delivery. Zero guesswork.

Every Ecommerce App Development project follows the same proven framework — Swiss precision with agile delivery so you always know what's happening next.

01

Data Gathering

Identify target categories, catalog requirements, payment gateways, and ERP APIs.

02

Sitemap & UX

Map catalog hierarchy, checkout steps, catalog search, and layout screen grids.

03

Visual Design

Develop high-fidelity visual mockups across all primary store pages and checkout steps.

04

Engine Build

Develop the headless frontend and integrate APIs, payment gateways, and database.

05

QA & Testing

Audit transaction security, page load speeds, database synchronization, and checkout paths.

06

Launch

Go live on secure Swiss hosting, monitor initial purchases, and hand over admin manuals.

Week 1–2

Catalog Strategy & Sitemap

Week 3–4

Visual Concept Design

Week 9–12

Security Audits & Launch

Transparent Pricing

Fixed prices. No surprises.

All packages include the full service process. No scope creep, no hidden extras.

Starter
CHF 5,000

Perfect for SMEs needing a professional e-commerce MVP with core payment integrations.

  • Up to 50 product catalog
  • Stripe payment integration
  • Core layout grid setup
  • Basic Figma components
  • Interactive clickthrough link
  • 1 revision round
  • No ERP integrations
  • No Swiss payment gateways
Timeline: 6–12 Weeks
Get Started
Enterprise
CHF Custom

Bespoke high-volume e-commerce for global corporations with complex catalog requirements.

  • Unlimited product catalog
  • Multi-region payment gateways
  • Custom ERP integrations
  • WCAG 2.1 AA accessibility audit
  • Multi-language storefronts
  • Dedicated account manager
  • Ongoing development retainer
  • Unlimited revisions
Custom timelines available
Request a Quote

All prices are fixed-fee contracts. Ask about our multi-studio bundle discounts.

Recent Work

Projects we're proud of.

Corporate Project

Swiss Fashion Brand

Luxury e-commerce platform with TWINT integration and 3D product viewer, 3× conversion rate.

EcommerceTWINT
Corporate Project

ConnectorSaaS

Subscription e-commerce platform for SaaS billing and digital license delivery.

SaaS BillingSubscriptions
Corporate Project

ABB Group Switzerland

B2B spare parts e-commerce portal with SAP ERP sync and corporate account management.

B2B EcommerceSAP Sync

"Professional Designers' e-commerce engine has transformed our online sales. The new site is incredibly fast, secure, and transaction conversion improved by 40% post-launch."

LH
Laura Henning Chief Design Officer, Professional Designers AG
★★★★★
55+E-com stores created
99.9%Uptime performance
4.9/5Satisfaction score
FAQ

Answers before you ask.

We build on Next.js (headless), Shopify Plus, and WooCommerce depending on your requirements. We always recommend the best fit for your scale and budget.

We integrate TWINT, PostFinance, Datatrans, Stripe, and Payrexx — covering all major Swiss and European payment methods.

A standard e-commerce development project takes between 6 and 12 weeks to complete depending on catalog size and integrations.

PCI-DSS is the global security standard for handling payment card data. All our e-commerce stores are built to fully comply with PCI-DSS requirements.

Yes. We integrate with SAP, Microsoft Dynamics, Sage, and other ERPs via custom REST APIs and automated data sync.

Yes. All our e-commerce packages are fixed-price contracts so you know your exact budget commitments from day one.

Ready to get started with Ecommerce App Development?

Talk to a senior specialist — free 30-minute discovery call. No sales pitch, no commitment.