Led 0→1 launch of PayRange IoT platform integration, architecting an event-driven Bluetooth Low Energy (BLE) stack for machine discovery, remote start, real-time telemetry, and cashless payment processing across 90K+ field machines, projected to drive $5M/month in new revenue.

Secured Authentication and Wallet Management APIs with encrypted tokens + API keys, integrated Google Secret Manager, and refactored Express middleware & controllers to maintain secure secret access and backward compatibility.

Architected serverless API key management system using Firebase Realtime Database, Cloud Functions, and CryptoJS (SHA-256 hashing), implementing factory pattern for key generation, expiration/rotation, and per-partner rate-limiting.

Designed Power Automate flows to auto-generate Salesforce Freshdesk tickets with user identifiers and support context—eliminating reliance on external mail apps, speeding up verification, and improving analytics on abandoned vs. submitted customer support requests.

Built an Auto-Refund microservice for eligible transactions that slashed support ticket volume by ~60% and accelerated average ticket resolution time from 1-3 days to < 10 mins.

Streamlined WASH-Connect mobile app architecture and CI/CD pipelines by integrating “Campus” + “Coinamatic” apps as modular product flavors, implementing dynamic React Navigation flows triggered by app context, and optimizing Bitrise YAML scripts to automate dependency + secret management and deployments to iOS/Android app stores—improving release consistency, reducing errors, and accelerating the software development lifecycle (SDLC).

Expanded Sentry mobile app monitoring to leverage session replays + stack traces to pinpoint root causes of crashes & performance bottlenecks, prioritize high-impact defects, and streamline QA debugging—contributing to 99.977% crash-free sessions and +40 NPS (from -29 to +11).

Led a team of 5 developers by facilitating Flux architectural decisions, overseeing task management via Jira, and organizing code reviews/standups. Product developed under tech accelerator OS Labs (opensourcelabs.io) | GitHub: 350+ ⭐

Incorporated React Hooks + Context API to build prototype’s state management modules by creating classless components with access to global state to avoid prop drilling, which modularized the injections of user’s State Hooks into ReacType’s Code Preview and kept the app lightweight.

Resolved server overload from excessive Auto-Save API calls by implementing request debouncing on the client and adding rate-limiting to existing Express routes, eliminating timeout errors and improving save operation reliability.

Promoted Test-Driven Development into an existing codebase by utilizing Jest’s built-in assertion & mocking library, Enzyme’s shallow rendering, and Supertest integration testing to drive code stability, maintainability, and consistency.

Expanded user access with Electron by building multiple Docker images and distribution bundles, which enables developers on macOS, Windows, and Linux systems to prototype, save, and export React.js / Next.js / GatsbyJS templates.