SYS
CORE
Rahul Kumar Gupta
SYS // RUNNING GRAPHICS CHECK
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Services — Core Delivery Matrix

Built toDeliver atEvery Scale

End-to-end engineering from architecture and implementation to launch and post-launch optimisation — for commerce teams that demand performance and precision.

Shopify EngineeringBigCommerceNext.js / ReactHeadless CommerceCustom App DevPerformance & SEOCMS IntegrationAPI Workflows

Shopify Engineering

Custom themes, dynamic sections, metafields, subscriptions, bundles, and conversion-focused storefront implementation.

BigCommerce Development

Stencil customization, custom widgets, B2B account logic, migration support, and advanced API-driven workflows.

Next.js Product Builds

Production-grade React and Next.js builds with App Router, TypeScript, responsive UX, and scalable architecture.

Custom App Development

Shopify and BigCommerce app development including Stripe subscription logic, S3 workflows, and custom business automations.

Performance, SEO & Tracking

Core Web Vitals optimization, technical SEO, GA event tracking, and third-party analytics/marketing integration.

Headless & CMS Integration

Headless commerce experiences with Next.js plus Sanity and WordPress content architectures.

Senior-level execution.
Standard-setting performance.

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Dev

Capabilities

Skills, counters, and service confidence

Production launches

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Average lighthouse

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Long-term clients

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Shopify / Liquid

96%

BigCommerce

92%

Next.js + React

95%

SEO + Performance

94%

Let's scope your next build

If you need a Shopify, BigCommerce, or headless React build, I can help you scope delivery with clear milestones and business-focused priorities.