Overview
Kiaora is a direct-to-consumer telehealth platform providing personalized hormone therapy and metabolic health programs to women across the United States.
As the primary Full Stack Engineer, I worked across the patient-facing experience, backend services, subscription billing, data modelling, security controls, analytics, and production infrastructure.
Problem Statement
1. Complex Clinical Intake Process
Kiaora needed to collect clinically relevant information through detailed medical questionnaires. Lengthy forms and unnecessary questions could create friction and lead to patient drop-off during onboarding.
2. Complex Subscription and Prepaid Billing
The platform needed to support BHRT, GLP-1, and Thyroid programs, monthly subscriptions, prepaid multi-month plans, promotional discounts, split coupons, and account credits.
3. Referral Credits and Revenue Recognition
Referral rewards required eligibility checks to reduce self-referrals and duplicate rewards. Prepaid invoices also needed accurate revenue allocation across the correct accounting periods.
4. Sensitive Patient Data and Production Operations
The platform required controlled access to patient records, reliable deployments, production monitoring, security controls, and documented operational processes.
Solution Statement
1. Conditional Medical Intake and Autosave
Built reusable, multi-step medical questionnaires with program-specific conditional branching, debounced autosave, shared backend validation, and supporting patient onboarding flows.
2. Advanced Subscription Billing
Implemented Stripe subscription and prepaid billing, promotional-code resolution, split-coupon logic, customer balance handling, and post-checkout upsells without disrupting existing billing cycles.
3. Referral Management and Financial Accuracy
Developed referral credit workflows with fraud-prevention checks and corrected prepaid invoice revenue recognition using Stripe invoice period fields, including a backfill script for historical invoices.
4. Secure Infrastructure and Monitoring
Configured Supabase Row-Level Security policies, deployed NestJS APIs on AWS EC2 using PM2, optimized AWS Amplify builds, and implemented EventBridge and Lambda alerts to Slack.
Features
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Conditional medical questionnaires for BHRT, GLP-1, and Thyroid programs.
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Debounced autosave to preserve patient intake progress.
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Reusable form components and shared backend validation.
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Monthly subscriptions and prepaid multi-month plans through Stripe.
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Promotional codes, split coupons, account credits, and post-checkout upsells.
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Referral credit workflows with eligibility and fraud-prevention checks.
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Revenue recognition across the correct accounting periods.
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Analytics dashboards for subscription, retention, and program performance.
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UTM tracking across the marketing site and application.
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Supabase Row-Level Security and production event alerts.
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AWS deployment workflows, runbooks, and QA handoff processes.
Benefits
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Improved Patient Onboarding: Conditional questions and autosave help patients complete and resume medical intake more easily.
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Reliable Billing Workflows: Supports recurring subscriptions, prepaid plans, discounts, account credits, and additional program purchases.
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Safer Referral Rewards: Eligibility checks help reduce self-referrals, duplicate rewards, and credit farming.
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More Accurate Financial Reporting: Revenue recognition aligns prepaid invoices with the correct accounting periods.
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Better Business Visibility: Analytics and UTM tracking provide insight into acquisition, subscriptions, retention, and program performance.
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Stronger Access Controls: Supabase Row-Level Security helps restrict patient records to authorized roles.
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Improved Operational Readiness: Deployment runbooks, monitoring, alerts, and documented handoffs support ongoing maintenance.
What Sets This Work Apart
The project involved more than connecting a payment gateway. It required coordinating recurring and prepaid subscriptions, referral credits, promotional discounts, mid-cycle upsells, account balances, and revenue recognition within production billing workflows.
The patient intake experience was also designed around conditional branching and autosave, while analytics and UTM tracking improved visibility into acquisition and retention. Deployment pipelines, runbooks, monitoring, access controls, and team handoff processes supported long-term maintainability.
Core Expertise Demonstrated
Full-stack development, HealthTech, React, Next.js, TypeScript, Tailwind CSS, Node.js, NestJS, PostgreSQL, Supabase, Row-Level Security, Stripe API, Stripe webhooks, subscription billing, prepaid plans, referral systems, fraud prevention, revenue recognition, AWS EC2, AWS Amplify, AWS Lambda, EventBridge, PM2, analytics dashboards, UTM tracking, and HIPAA-aligned application security.
Book a free consultation call with Ahmad Raza to explore ideas, clarify requirements.
