Hey there! I’m Usman Ahmad, a senior full-stack developer with a strong focus on Rails, React, and Node.js. I build scalable software solutions and lead end-to-end product delivery. I thrive on turning complex requirements into elegant, robust systems using Rails, React, and Node.js, and I love collaborating with teams to ship high-quality software that users love.
I’ve supported startups across healthcare, automotive, tourism, retail, food, and productivity sectors, and I’m currently focused on refining best practices to solve client challenges and drive impact.
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Led end-to-end development of dynamic IVR workflows, enabling clients to configure call flows, appointment bookings, business hours, and multilingual support using agenda integrations like Timify, SuperSaaS, and Mobminder.
Built custom tracking, analytics, and testing features, including call/SMS logging, test IVRs with virtual numbers, internal usage stats, and integration with external services like Cronofy and Twilio for real-time monitoring.
Developed robust admin and client dashboards, with support for multiple IVRs per account, secure role-based access, version history (via PaperTrail), and tools to preview, modify, and test IVR interactions without live calls.
Enhanced hotel-related features by rewriting unique rates endpoints, adding exception handling for availability issues, and improving booking and cancellation processes with new endpoints and validations.
Integrated and refactored payment systems including Stripe subscriptions, ACH support, and card verification through Spreedly, with modularized code and additional metadata handling.
Migrated scrapers for bookings, rates, and variants from Heroku to DigitalOcean, improved performance and error handling, and automated deployments with Capistrano, Puma, and Nginx configurations.
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