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T S Sathish K.

T S Sathish K.

Shopify Developer | Shopify Custom Apps, Public Apps & Integrations

Shopify Developer | Shopify Custom Apps, Public Apps & Integrations, Shopify Custom Bundle Builders & Shopify Plus Solutions Most Shopify stores run on a combination of apps, manual processes, and workarounds. That works until the business grows and those limitations start costing time, revenue, or operational efficiency. I help Shopify merchants solve problems that off-the-shelf apps cannot. With nearly two decades of web development experience and a deep focus on the Shopify ecosystem, I build custom Shopify applications, backend integrations, automation systems, and theme-native solutions tailored to the way your business actually operates. My work includes: • Custom Shopify Apps • Public Shopify App Development • Embedded Shopify Apps • Shopify App Store Submission & Review Process • Shopify Plus Solutions • Inventory & ERP Integrations • Subscription Experiences • Bundle Builders • Custom Product Configuration • Admin Tools & Merchant Workflows • API Integrations & Automation • Theme Development & Custom Features I work across the full Shopify stack, including Liquid, JavaScript, Shopify Admin API, GraphQL, Webhooks, App Bridge, Polaris, REST APIs, background processing, and third-party system integrations. Recent projects include: Custom Inventory Automation Platform Built a custom inventory management system for a Shopify Plus merchant managing thousands of SKUs across multiple vendors. The platform included bi-directional inventory synchronization, automated processing pipelines, GraphQL bulk operations, and queue-based architecture for high-volume updates. Result: 95% reduction in daily processing time and elimination of overselling issues. Subscription Flow Rebuild Replaced a restrictive third-party subscription experience with a fully customizable theme-native flow integrated with Loop Subscriptions. The merchant gained complete control over the customer experience directly from the Shopify Theme Editor. Custom Bundle Builder Designed and developed a fully custom bundle-building experience with advanced product selection logic, dynamic pricing, cart integration, and flexible merchandising controls beyond the capabilities of standard bundle applications. What clients value most: • Solutions built around business requirements, not app limitations • Clean, maintainable code with long-term scalability in mind • Strong backend and integration experience • Clear communication and realistic project scoping • Ownership of the final solution Whether you need a custom Shopify app, a complex integration, an internal merchant tool, or a customer-facing experience that existing apps cannot deliver, I can help design and build the right solution.

🇮🇳Chennai, India$25/hr100% JSS5.00 (56)Since Sep 2008

Earnings and projects

MRR
$0

Last 6 months ÷ 6

World#44,827 / 412k
🇮🇳Country#7,142 / 45.9k
Revenue, last 30 days
$0
Total earnings
$88k

Billed in all: $89k

World#44,827 / 412k
🇮🇳Country#7,142 / 45.9k
Per project
$1.3k
Projects, last 6 months
0
World#209,850 / 412k
🇮🇳Country#23,217 / 45.9k
Projects in all
66

Across 69 contracts

72% fixed28% hourly
World#45,727 / 412k
🇮🇳Country#7,833 / 45.9k

Earnings, last 30 days

$89kNothing earned in the last 30 daysBilled in all, before Upwork's fee · drag across the chart to see what was earned in any stretch
$87k$88k$89k$90kOct 8Oct 23Nov 7

Skills