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Ernest Amponsah

@ernestamponsah

Full-Stack Developer at Hennyvals Prime Enterprise Corp who shipped 7 production applications attracting 1,000+ sign-ups.

United States

Message

What I'm looking for

I’m interested in mission-driven HealthTech work that helps clinicians deliver better outcomes for children and families.

At Hennyvals Prime Enterprise Corp, I’ve designed, built, and shipped 7 production applications across payments, remittances, communication, e-commerce, education, and AI, attracting 1,000+ sign-ups and customers. I build end-to-end features with Next.js, React, TypeScript, and Supabase, and deploy them on Vercel.

I’ve implemented KYC identity verification, secure sessions, and role-based access for sensitive personal and financial data. I also encrypt sensitive data, maintain audit logs, and secure integrations with Stripe, Paystack, and CyberSource.

At Wix, I’ve delivered 30+ client websites, web applications, and online stores with responsive, accessible interfaces. I integrate scheduling, booking, payment, and CRM tools, then handle deployment and maintenance.

At Deluxe, I process funds in a regulated payment system handling 50,000+ daily transactions at 99%+ accuracy, and I’ve onboarded 50+ clients through UAT and go-live. I’m interested in HealthTech that helps clinicians deliver better outcomes for children and families.

Experience

Work history, roles, and key accomplishments

Current

Owner / Full-Stack Developer

Current

Hennyvals Prime Enterprise Corp

Jan 2026 - Present (9 months)

Designed, built, and shipped 7 production applications in under 10 months across payments, remittances, communication, e-commerce, education, and AI, attracting 1,000+ sign-ups and customers. Build end-to-end features with Next.js, React, TypeScript, and Tailwind CSS, backed by Supabase and PostgreSQL and deployed on Vercel.

Next.js React TypeScript Tailwind Supabase PostgreSQL Vercel SQL Row level security OAuth JWT KYC Stripe Paystack CyberSource Supabase Realtime Webhooks Jest Playwright Claude Code Cursor GitHub Co Pilot RAG

Current

iOS App Developer & Implementation Project Lead

Current

DatsMyBudget

Aug 2025 - Present (1 year 2 months)

Built an e-commerce website and iOS app with seller storefronts, sales tracking, and real-time dashboards, growing it to 1,000+ app users. Led implementation, testing, and releases through App Store Connect, iterating on user feedback.

iOS Ecommerce App Store Connect Project Management Testing Release Management User Feedback Documentation

Current

Full-Stack Website & App Developer Agent

Current

Wix

Jan 2025 - Present (1 year 9 months)

Delivered 30+ client websites, web applications, and online stores with responsive, accessible, pixel-perfect interfaces. Integrate scheduling, booking, payment, and CRM tools into client sites, and handle deployment and maintenance.

Web Development Responsive Design Accessibility Scheduling Booking Payment Integration CRM Integration Deployment Maintenance PageSpeed Optimization cross browser compatibility Documentation

Current

Console Operator

Current

Deluxe

Feb 2024 - Present (2 years 8 months)

Process and transmit funds within a regulated production payment system handling 50,000+ transactions daily at 99%+ accuracy. Follow strict data protection, confidentiality, and control procedures for sensitive financial data.

Payment Processing Data Protection Confidentiality Control Procedures Financial Data Accuracy Regulated Environments

Current

Processing Specialist / Balance and Control

Current

Deluxe

Nov 2023 - Present (2 years 11 months)

Process and transmit funds within a regulated production payment system handling 50,000+ transactions daily at 99%+ accuracy. Investigate exceptions through reports and audit trails, tracing issues to root cause.

Payment Processing Data Protection Confidentiality Control Procedures Financial Data Accuracy Regulated Environments Exception Investigation Audit Trails Root Cause Analysis

Current

Lead Operations Analyst

Current

Deluxe

Oct 2023 - Present (3 years)

Process and transmit funds within a regulated production payment system handling 50,000+ transactions daily at 99%+ accuracy. Onboarded 50+ clients through UAT and go-live, validating data and system behavior before release.

Payment Processing Data Protection Confidentiality Control Procedures Financial Data Accuracy Regulated Environments Client Onboarding UAT Go Live Data Validation

Current

Lead Operations

Current

Deluxe

May 2023 - Present (3 years 5 months)

Process and transmit funds within a regulated production payment system handling 50,000+ transactions daily at 99%+ accuracy. Run CDM batch processing and balance-and-control checks on business-critical systems.

Payment Processing Data Protection Confidentiality Control Procedures Financial Data Accuracy Regulated Environments Batch Processing Balance Control

Information Technology Support Specialist

EA Dealership & Tech

Feb 2020 - Mar 2022 (2 years 1 month)

Diagnosed and repaired hardware, software, and networking issues, documenting fixes for repeat problems. Supported customers directly, explaining technical problems and fixes in plain language.

Hardware Repair Software Troubleshooting Networking Documentation Customer Support Technical Communication