eCommerce Software Development for Modern Retailers

We deliver eCommerce software development for retailers, brands, marketplaces, and B2B sellers across 45+ client countries. ScalaCode brings 13+ years of commerce delivery, ISO 9001 certification, Shopify Plus Partner status, AWS Advanced Tier, and 250+ engineers. Clutch and GoodFirms list us among trusted commerce build partners.

Whether you are migrating to Shopify Plus, building headless commerce on Next.js, or launching a multi-vendor marketplace, we ship code that moves real metrics. Clients track conversion rate lift, higher AOV, and lower checkout abandonment. They also track faster time to first order and cleaner data flow between catalog and back office.

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Trusted by Startups, ISVs, and Fortune 500 Teams Since 2012

What Is eCommerce Software Development?

eCommerce software development builds the storefronts, marketplaces, and order systems that power online retail. The work covers platform builds on Shopify Plus, Magento, BigCommerce, or custom stacks, headless commerce frontends, multi-vendor marketplaces, B2B portals, mobile commerce apps, and integrations with ERP, OMS, and payment infrastructure. Retailers hire eCommerce software development partners to launch new storefronts, migrate platforms, or build differentiated commerce experiences.

eCommerce Software Development Services We Ship

Shopify Plus development

We build custom Shopify Plus storefronts on Hydrogen, custom checkout extensions, Shopify Functions for pricing and discounts, and Shopify Flow automations. Themes are built mobile first and tuned for Core Web Vitals. We also handle Plus account setup, scripts migration to Functions, and Launchpad event readiness.

Headless commerce

Next.js front ends backed by Shopify, BigCommerce, or Commercetools. We wire GraphQL Storefront APIs, set up Vercel or AWS Amplify hosting, and handle the catalog, cart, and checkout flows. Edge caching, ISR, and CDN strategy are scoped early so launch traffic does not break the storefront.

Magento and Adobe Commerce

We build on Magento 2 and Adobe Commerce B2B, deliver PWA Studio storefronts, and run migrations from Magento 1. Work covers custom modules, tax and shipping logic, and Adobe Commerce Cloud deployments.

Custom marketplaces

We build multi-vendor marketplaces with vendor onboarding flows, escrow payments, commission management, dispute handling, and KYC. Stack is typically Next.js with Node.js on the API layer and Postgres for the data layer.

B2B commerce portals

B2B portals with custom catalogs, customer-specific pricing, account hierarchies, quote workflows, and approval chains. Integrations cover Salesforce, HubSpot, NetSuite, and SAP order systems.

Mobile commerce apps

We ship React Native and Flutter commerce apps, plus native iOS and Android when needed. Work covers push notifications, deep links, in-app payments, and offline catalog browsing for thin network regions.

How We Work With You

Problem discovery

Discovery (Week 1)

A commerce lead runs scoping calls with your team. We capture catalog size, channel mix, payment regions, and integration list. Output is a written scope and a sprint plan.

Catalog and integration mapping (Week 2)

We map product data, SKUs, variants, tax rules, and shipping zones. ERP, OMS, PIM, and CRM integrations are listed with payload samples. Risk areas are flagged before code starts.

Sprint build (ongoing two-week sprints)

Two-week sprints with a demo every Friday. You get sprint goals, burndown, and a shared backlog. An engineering manager runs delivery and reports to your team weekly.

Launch, hardening, handover

Pre-launch covers load testing, security review, and a soft launch window. Post-launch covers four weeks of hardening on a fixed schedule. Code, docs, and access are handed over to your team or kept under our retainer.

  • Rate transparency

    Hourly rates run from $13 to $25. Monthly engagements run from $1,200 to $4,000 per engineer. Rates sit on the public site. No hidden margins, no surprise change orders. Scope, sprint plan, and weekly billing are written into the master agreement at signing.

  • 13+ years of commerce builds

    We have shipped Shopify, Magento, BigCommerce, and custom marketplaces since 2012. The team has seen the migration patterns, the payment edge cases, and the inventory sync failures that break weaker builds.

  • Shopify Plus Partner status

    ScalaCode holds active Shopify Plus Partner status with current project deliveries. This gives our team direct partner support, early access to features, and a documented track record on the platform.

  • IP transfer day one

    All code, designs, and assets are yours from day one. We sign IP assignment in the master agreement. No staged ownership, no buyout clauses.

  • Engineering managers run delivery

    Every engagement gets a named engineering manager. This person owns sprint planning, risk reporting, and quality. You get one point of contact, not a rotating roster.

How to Choose an eCommerce Software Development Partner

Verify platform partner status

Shopify Plus Partner and Adobe Solution Partner badges indicate qualified delivery.

Check headless commerce experience

Next.js with Shopify or BigCommerce APIs is the modern stack.

Confirm payment gateway breadth

Stripe, Adyen, Razorpay, and regional gateway coverage matters for global rollout.

Review ERP and OMS integration history

NetSuite, SAP, and custom ERP integration patterns vary widely in difficulty.

Validate performance posture

Core Web Vitals scores on past builds predict your conversion rate.

Assess B2B commerce capability

Custom catalogs, account hierarchies, and quote workflows are not standard.

Test migration discipline

Platform migrations need cutover plans, dual-write windows, and SEO preservation.

Ways to Work With Us

Dedicated commerce team (monthly)

A retained team of 3 to 8 engineers, a designer, and a QA lead. Monthly billing, two-week notice to scale up or down. Best for ongoing roadmaps.

Fixed scope build (10 to 20 weeks)

A defined milestone build with a written scope and a fixed fee. Used for storefront rebuilds, B2B portals, and marketplace launches. Change requests handled by written addenda.

Platform migration (legacy to modern)

Magento 1 to Magento 2. Magento to Shopify Plus. WooCommerce to BigCommerce. Headless cutovers from monolithic stacks. We migrate the catalog, orders, customer data, and SEO redirects with a documented switchover plan.

Commerce site rescue

A short engagement to stabilize a struggling site. Common cases include checkout abandonment spikes, broken integrations, Core Web Vitals failures, and theme rollback after a failed update. Rescue runs are scoped weekly with a written stop point.

Real-World Solutions Delivered

eCommerce Software Development Tech Stack

Platforms

Shopify Plus Magento 2 Adobe Commerce BigCommerce WooCommerce Commercetools

Frontend

Next.js Hydrogen React Vue Nuxt Tailwind CSS

Backend

Node.js PHP Python Ruby on Rails

Payments

Stripe Adyen Razorpay PayPal

ERP and OMS

NetSuite SAP Microsoft Dynamics custom OMS

Search and discovery

Algolia Elasticsearch Klevu Typesense

ScalaCode vs Other Commerce Builders

What you care about ScalaCode Boutique commerce agencies In-house team
Hourly rate $13 to $25 $120 to $250 $80 to $160 fully loaded
Time to first sprint 1 to 2 weeks 4 to 8 weeks 8 to 16 weeks to hire
Platform coverage Shopify, Magento, BigCommerce, Commercetools, custom Often single platform Depends on hires
Scale up or down Two-week notice Quarterly contracts Hire and fire cycles
IP transfer Day one Day one Built in

eCommerce Software Development Timelines

Typical eCommerce build structures and cost bands. These figures represent observed market ranges, not ScalaCode quotes.

Build Type Typical Timeline Typical Cost
Shopify Plus Custom Storefront 10 to 14 weeks $60K to $150K
Headless Commerce (Next.js + Backend) 16 to 22 weeks $140K to $320K
Magento 2 Build 14 to 20 weeks $120K to $280K
Multi-Vendor Marketplace 20 to 30 weeks $200K to $500K
B2B Commerce Portal 18 to 24 weeks $160K to $380K
Platform Migration 12 to 18 weeks $80K to $200K

eCommerce Software Development Pricing

Hourly rates

  • Mid engineer

    Feature work, integrations, ongoing builds

    $13-$15/hr

  • Senior engineer

    Headless builds, marketplace logic, migrations

    $18-$20/hr

  • Lead engineer

    Architecture, platform rescue, B2B portals

    $23-$25/hr

Monthly engagements

  • Associate

    QA, bug triage, theme work

    $1,200-$1,500/month

  • Mid

    Module dev, integrations

    $1,600-$2,200/month

  • Senior

    Headless, B2B logic, platform migrations

    $2,400-$3,000/month

  • Lead

    Solution architect, engineering manager

    $3,200-$4,000/month

What Clients Say

eCommerce Software Development FAQs

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