E-commerce Systems Consultant — Build Centralized Multi-Channel Data & Analytics Hub

We're a Bay Area hardware startup selling consumer electronics across multiple channels (Shopify, Amazon Seller Central, DigiKey, and B2B/wholesale). Our channel operations work, but everything is managed manually across separate platforms — we need someone to design and build a centralized system so one person can manage it all efficiently. What we need: A single dashboard/platform that consolidates data from all sales channels: orders, inventory, revenue, ad spend, customer data Built-in analytics: sales trends, channel comparison, SKU-level performance, margin tracking Low maintenance burden — after handoff, it should run with minimal manual work (automated syncs, not manual exports) You recommend the right stack. We're open to: existing SaaS tools (e.g., data connectors + BI dashboard), low-code platforms (Airtable, Retool), or a lightweight custom build — whatever balances capability vs. maintenance cost Documentation + handoff training so we can operate and make minor adjustments ourselves Scope (proposed phases): Discovery call: review our current channels, data sources, and pain points Recommend architecture + tool selection with cost breakdown (one-time + recurring) Build and integrate (Shopify API, Amazon SP-API, etc.) Testing, documentation, handoff You should have: Proven experience building multi-channel e-commerce data systems (please share examples/case studies) Hands-on experience with Shopify and Amazon Seller Central APIs/integrations Experience with BI/dashboard tools (Looker Studio, Metabase, Power BI, or similar) and/or low-code platforms Strong opinions on build-vs-buy — we want the most pragmatic solution, not the fanciest one Clear English communication; async-friendly Nice to have: Experience with Klaviyo, Meta/Google Ads data integration Experience with B2B/distributor channels alongside DTC Familiarity with GA4 To apply, please include: A brief description of a similar system you've built (channels involved, tools used, ongoing maintenance required) Your recommended approach for our case in 2-3 sentences Estimated timeline and budget range