Available for Q3/Q4 2026•Port-Harcourt, NG

Building digital products that bridge utility, AI, and human behavior.bridge utility AI and human behavior

Hi, I'm Joshua Ukpai (@jaykayhq) — solo builder & product architect engineering high-retention mobile apps, full-stack platforms, and applied AI systems.

Live Demo

Emerge

Flagship Mobile App

Identity-First Habit Engine & Gamified Behavioral Ecosystem

84% Retention

Gamified habit architecture with RPG progression and behavioral AI.

84%
30-Day Retention
15,000+
Habit Completions
FlutterDartRiverpodFirebase Gen 2
4+
Products Shipped
Flagship apps including Emerge, SocialSense, Veridrop, & LedgerNote
15+
Deployments & MVPs
Production systems launched with high uptime and clean architecture
5+
Years Building
Continuous hands-on software engineering & systems architecture
100%
Client Satisfaction
Direct communication, transparent delivery, and high-velocity shipping
Case Studies

Flagship Products & Architectures

Production systems built for real-world impact — from gamified behavioral engines to localized AI intelligence.

Mobile Engine
2025–2026
Emerge

Identity-First Habit Engine & Gamified Behavioral Ecosystem

A gamified mobile habit system engineered around behavioral psychology and identity reinforcement (Atomic Habits), featuring RPG avatar evolution, implementation intentions, digital temptation lockers, and AI reflections.

84%
30-Day Retention
15,000+
Habit Completions
FlutterDartRiverpodFirebase Gen 2Drift (SQLite)
B2B AI Platform
2025
SocialSense

Social Media Intelligence & Market Sentiment Platform for African SMEs

An AI-powered social media listening and sentiment analytics platform tailored for Nigerian and African SMEs, featuring multilingual Nigerian Pidgin NLP sentiment classification, competitor tracking, and real-time WhatsApp alert integration.

91.4%
NLP Classification Accuracy
4.2 hrs/wk
Time Saved per SME
PythonFastAPINext.js 15TypeScriptTailwind CSS
Engineering Services

High-Velocity Capabilities

From rapid MVP sprints to specialized Flutter mobile engines and applied AI automation.

2–4 Weeks
MVP Rapid Launchpad

Turn your product vision into a production-grade web or mobile MVP ready for user validation, investor demos, and live revenue generation. Zero fluff, high-velocity delivery with full architecture handover.

Production-Ready Web or Mobile App
Authentication & Role System
Payment & Subscription Gateway
Investment:$2,500
4–8 Weeks
Full-Stack & Mobile Development

Architecting and engineering enterprise-grade cross-platform mobile apps (iOS & Android) and high-scale web platforms. Engineered for 60fps rendering, offline resilience, and bulletproof security.

Impeller-Accelerated Native Mobile Apps
Offline-First SQLite Synchronization
Microservices & REST / GraphQL APIs
Investment:$4,000
1–3 Weeks
AI Integration & Workflow Automation

Transform operational bottlenecks into autonomous, intelligent workflows. Custom LLM integrations, Google Genkit agent flows, semantic vector search, automated document ingestion, and conversational WhatsApp agents.

Custom Genkit / LLM Agent Workflows
Semantic Vector Search & RAG Pipeline
Conversational WhatsApp & Web Bots
Investment:$1,800
Joshua Ukpai

Joshua Ukpai

@jaykayhq

Solo Builder, Full-Stack Engineer & Product Architect

Port-Harcourt, NG
IEEE Contributor
B.Eng. Comp Eng (ABUAD)
Behind the Code

The Solo Builder & Systems Architect

With a background in Computer Engineering from Afe Babalola University (ABUAD) and active technical contributor roots in the IEEE community, I build full-stack systems engineered for high agency, deterministic reliability, and long-term durability.

I believe in intentional minimalism: reduction of bloat, offline-first architectures that respect real-world network friction, and applying AI for deep practical leverage.

Identity-First Habit & Product Design
Behavioral Psychology Meets Software Engineering
Intentional Minimalism & Zero Bloat
Code That Does Not Rot
Pragmatic Applied AI
Invisible Leverage Over Gimmicks
Full-Stack Agency & Rapid Velocity
Solo Builder Agility
Guaranteed Response < 24h

Have an ambitious product to build? Let's start the conversation.

Direct communication with the product architect. Whether you need a high-retention Flutter mobile app, full MVP launchpad, or practical AI automation, let's talk.