Full Stack Engineer

Open to full-time
Bio

Patrick D is a proficient Software Engineer with a robust background in full-stack development, AI integrations, and scalable infrastructure design. Specializing in technologies such as React, Node.js, Flutter, and Next.js, Patrick has successfully led and delivered multiple high-impact projects across various industries. His experience includes designing a unified payment system that increased revenue by 50% and reduced payment disputes by 35%, developing a digital fundraising platform generating over $150,000 in revenue, and architecting an AI-powered marketing campaign engine that enhanced customer engagement by 30%. Patrick is also skilled in using cloud services like GCP and AWS, and he has implemented secure, real-time payment processing with Stripe, enhancing transaction accuracy and reliability. His technical prowess extends to AI applications, having developed an AI travel assistant that achieved over 90% user satisfaction. Patrick's ability to drive significant improvements in system performance and user engagement, coupled with his expertise in modern development practices and tools, including Docker, Kubernetes, and GitHub Actions, positions him as a dynamic developer capable of transforming business requirements into efficient, scalable solutions.

Video Intro
Assessments
APPLICANT AVG · 56%PATRICK · 93%0255075100TopASSESSMENT SCORE (0–100)

General Coding and Video Assessment

(93/100)
  • Count Subarrays with Sum Equal to KEasy
  • Client-Side Authentication Failure Investigation, Diffculty MediumMedium
  • Discuss the Advantages of Context API vs. Redux in ReactMedium
Projects

MySapienta

Built an AI-enabled school workspace powering 10+ schools, supporting 5,000+ students, staff and parents across academics, administration, and reporting. Translated real institutional needs into product features, including academic record management, scheduling, communication workflows, and performance tracking, using AI and automation to cut administrative workload by ~40%. Led product strategy and full-stack engineering, delivering a modular, extensible architecture that supports rapid iteration and future feature expansion. Designed the platform for scalable deployment with low operational overhead, enabling adoption by schools with varying technical capacity and resource constraints.

Loqie

Locqie is a smart locker/last-mile delivery system designed to make campus life safer and simpler. It uses biometric checks or pin locks to ensure that only the right person can open their locker. This means that packages and personal items are much less likely to be stolen—almost eliminating losses. The system keeps a close, real-time watch on deliveries for over 1,000 students, so you always know when your package has arrived. Additionally, it helps lecturers by allowing them to reserve lockers for assignment submissions. This way, student work is tracked in real-time, and reminders are sent out to keep everyone on schedule.

Earl

Launched a Flutter mobile app serving 5,200+ students, reducing course scheduling conflicts by 60%, boosting productivity, and easing the search for course materials. Implemented real-time hostel availability system processing 600+ daily searches and facilitating 15+ room reservations per day during peak season, reducing average booking time from 3 days to less than an hour.

Coro Dash

Launched a virus safety awareness game built with Unity, achieving 4.8/5 star rating and 100+ active daily users. Increased player retention by 40% through competitive gameplay mechanics and achievement system.

Experience

  1. Software Engineer

    TopXperience· Travel & HospitalityOct 2024 — Jul 2026
    • Designed a unified payment system in React, Flutter and Node.js. Consolidated split payments, tax automation, and refunds, driving a 50% revenue increase and reducing payment disputes by 35%.
    • Integrated Stripe for real-time payment processing, implementing secure charge calculations with 99.9% payout accuracy, earning praise from event organizers for reliability.
    • Enhanced user engagement by syncing venue menus, tabs, and order management, cutting checkout times by 40% and boosting ticket sales by 20%.
    • Built the web experience and reporting dashboard using Next.js, empowering organizers and admins with real-time insights into sales, payouts, and attendee behavior.
    React, Node.js, Typescript, GCP, Flutter, Dart, Javascript, Firebase, Stripe, OpenAI, Anthropic

  2. Software Engineer

    My Creativity Box· OtherJan 2023 — Feb 2025
    • Led the development of a digital fundraising platform used by 100+ U.S. sports teams, generating $150,000+ in revenue, built with Next.js, Firebase, and Stripe covering secure payments, automated team and player card generation, and team management.
    • Architected an AI-powered marketing campaign engine serving 50,000+ customers, increasing engagement by 30% and reducing campaign execution time by 31% using GCP and React.js.
    • Delivered an AI travel assistant chatbot used by 10,000+ users with 90%+ satisfaction, using Next.js, OpenAI, Python, and Node.js.
    • Cut deployment time by 45% through automated CI/CD pipelines with GitHub Actions and containerized microservices using Docker and Kubernetes.
    React.js, Next.js, Firebase, Supabase, Stripe, GCP, AWS, OpenAI, Python, Node.js, Docker, Kubernetes, GitHub Actions, Cypress

  3. Full-stack Developer

    Wi-flix· Media & EntertainmentJan 2022 — Jan 2023
    • Increased user retention by 14% through a redesigned onboarding flow with A/B testing (PostHog) and improved content recommendation algorithms using Python and TensorFlow.
    • Boosted streaming performance by 12% in low-bandwidth regions by optimizing Cloudflare CDN and implementing adaptive bitrate streaming.
    • Increased payment success rates by 15% through fault-tolerant transaction processing.
    TypeScript, Python, TensorFlow , PostHog, PostgreSQL, Nest.js, Cloudflare.

  4. Software Developer

    Bismuth Technologies· OtherJun 2022 — Feb 2024
    • Led the development of a professional networking platform for minorities achieving 5,000+ sign ups within the first three months. Primarily focusing on the backend with Express.js, PostgreSQL, MongoDB, Socket.io and Redis.
    • Engineered a donation platform with Flutter processing 4,000+ successful donations, reinforcing community bonds and promoting altruism.
    Express.js, PostgreSQL, MongoDB, Socket.io, Redis, Flutter
Education

  1. BSc. Computer Science

    University of Cape CoastCape Coast, Ghana2021 — 2024
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Full Stack Engineer

Accra, Ghana · 3-4 years experience

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