Challenge
Cross-platform mobile app
iOS + Android app with Bluetooth and USB device pairing, image capture, AI analysis display, firmware OTA updates, and warranty management.
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Case Study
Building a global SaaS platform at production scale — mobile, web, backend, hardware, and AI.

Client
Yehuda Diamond AI
Industry
Jewelry Tech
Project Type
Global SaaS Platform
Duration
3+ years (since 2022)
Team
~3.5 FTE
Company
Yehuda Diamond AI
Industry
Jewelry Tech
Project Type
SaaS Platform
Duration
3+ Years
Overview
Yehuda manufactures the Diamond Box family — advanced hardware devices used by jewelers and gemologists worldwide to distinguish natural diamonds from lab-grown stones and simulants. The hardware was capable and precise, but there was no software ecosystem to bring it to life.
To scale globally, Yehuda needed a complete platform: cross-platform mobile apps (iOS + Android), a web portal for analytics and account management, a cloud backend to handle AI analysis at scale, and deep hardware integration across multiple device families.
The challenge: deliver all of this as an end-to-end platform partner while the client focused on hardware innovation.
What this project delivered
A production-ready outcome built for Yehuda — designed for measurable impact across operations.
Challenges
A multi-layer product spanning mobile, web, cloud, hardware, and AI — built and operated by a single partner.
Challenge
iOS + Android app with Bluetooth and USB device pairing, image capture, AI analysis display, firmware OTA updates, and warranty management.
Challenge
Account management, analytics, admin workflows, device lifecycle, test gallery, and bulk operations for global customers.
Challenge
A global AI analysis pipeline, subscription lifecycle, multi-tier billing, automated notifications, and 24/7 uptime.
Challenge
Deep integration across 5 device families — Bluetooth and USB protocols, firmware OTA delivery, and coordinated multi-layer releases.
Challenge
Image analysis with confidence metrics, run reliably at production scale across millions of operations.
Approach
Mejix adopted a lean, iterative delivery model with one senior specialist per discipline — no bloat, maximum ownership and continuity. The same core team has grown the platform since 2022.
Each release is coordinated across mobile, backend, firmware, and AI services with smoke-test checklists and UAT before going live, so a multi-platform product behaves like a single, predictable system.
Solutions
Four tightly integrated systems — mobile, web, cloud, and hardware — designed and operated as one product.

React Native (iOS + Android) with real-time Bluetooth/USB device pairing, red-filter image processing, AI analysis display, firmware OTA updates, warranty management, and offline-first architecture.
React + TypeScript + Material UI with real-time sync, admin dashboard, device lifecycle management, test results gallery and export, plus bulk operations and reporting.
Node.js + Express backend on AWS with MongoDB and S3 storage — AI analysis trigger pipeline, subscription lifecycle and billing, multi-tier payment processing, and automated notifications.
Deep integration across 5 device families with firmware OTA delivery, Bluetooth & USB protocols, staging-to-production pipelines, and coordinated multi-layer releases.
Technology
Production-grade stack chosen for cross-platform reach, global scale, and long-term maintainability.
React Native (iOS + Android) — one codebase, native device APIs, Bluetooth and USB device pairing.
React + TypeScript + Material UI — typed, component-driven admin and customer dashboards.
Node.js + Express — REST APIs, AI orchestration, subscriptions, and notifications.
MongoDB for application data, AWS S3 for image and report storage.
AWS EC2, Firebase, and Stripe payments — global deployment with multi-tier billing.
Image analysis with confidence metrics, triggered from mobile and processed in the cloud at scale.
Results
Live platform metrics showing enterprise-grade usage and sustained growth across 3+ years.
188,544
AI-powered diamond tests running through the platform every month.
2,200+
Paid subscriptions across multi-tier plans, sustained customer growth.
2,270
Jewelers and gemologists using the platform across the globe.
540
Concurrent weekday peaks served reliably on production.
439
Consistent daily engagement across time zones.
65K+
Test results and reports exported by customers worldwide.
5
Watson AI, Sherlock AI, Dr. Watson, Sherlock Holmes 4, Big Sherlock.
60+
Global reach across dozens of countries.
Why Mejix
Mejix took the project from zero to production — mobile, web, backend, hardware integration, and DevOps. One partner, complete accountability.
~3.5 FTE delivering a multi-platform, hardware-integrated product with payments, subscriptions, and AI. Maximum value per dollar spent.
Same core team since 2022. Deep understanding of hardware constraints, payment flows, device lifecycle, and user behavior. No ramp-up overhead.
Infrastructure built to handle millions of operations, customers across dozens of countries, 24/7 uptime, and coordinated multi-layer deployments.
What's next
Five device families integrated, three platforms shipping (iOS, Android, Web), and customers across 60+ countries — all maintained by the same core team since 2022.
Production quality assurance with smoke-test checklists before every release, UAT with the client, and coordinated multi-layer deployments across mobile, backend, firmware, and AI services keep 188K+ monthly operations running reliably.
Certifications & Recognitions














Reviews & Certifications
Mejix successfully launched and scaled our software platform — mobile, web, backend, and hardware integration — into a global product. The team is accommodating, communicative, and consistently delivers on time and within budget.
Yehuda Diamond AI
Product Leadership
Why Mejix
Answers to the questions buyers usually ask after seeing this case study.
If you have hardware, a unique technology, or a product vision that needs a scalable software platform, let us talk about how Mejix can take it from concept to commercialization.
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