Matthew Fehrsen

24 years old · Cape Town, South Africa · Irish & South African citizen

Engineer · Founder · Marketer · Model

I see what needs to exist,
and I build it.

My biggest talent is agency. Marketing platforms, AI systems, mobile apps, entire businesses. All in production, almost all built by me alone. Penng went from idea to shipped product in eight months. One person.

My story

“Most people plan.
I ship.”

I've always been an inventor. My first business was at eight years old, selling brownies. By 16, I was on stage at the Tomorrow's Leaders Convention presenting the Fourth Industrial Revolution alongside a humanoid robot. Eight years later, I'm not presenting about the future anymore. I'm building it.

My most impressive accomplishment to date: Penng. A screen-free health wearable that went from idea to shipped hardware product in eight months. I designed the full-stack architecture, built a cross-platform mobile app with BLE hardware integration, reverse-engineered health scoring algorithms from industry leaders, wrote the entire Python/FastAPI backend, created five production web platforms, and built an autonomous AI system running 20+ scheduled jobs. Every line of code, one person.

I did all of that while working full-time as Head of Digital Transformation at Cape Media Corp, studying Software Engineering part-time at the University of Arizona, and playing competitive squash at provincial and international level.

2016

A Levels + Modelling + Provincial Squash

Homeschooled through Cambridge A Levels: Chemistry (B), Maths (B), Physics (C), Economics (C). Started modelling at 14 with ICE Models. Selected for Western Province junior squash the same year.

South AfricaGermanySwitzerlandTurkey
2018

Tomorrow's Leaders Convention

Keynote at 16 on the Fourth Industrial Revolution with a humanoid robot co-presenter. The talk that started everything.

2019

International Squash

Competed in the British Open and US Open (U19). Continued representing Western Province at senior level from 2021.

2021

University of Arizona

Started Software Engineering part-time. Currently in my fourth year.

2023

Starlit Solution

Founded a digital marketing agency. Ran campaigns for multiple clients. Learned what should be automated the hard way.

2024

Ultra Leads + Cape Media Corp

Built a lead gen platform from scratch. Joined Cape Media Corp as Head of Digital Transformation & AI Integration.

2025

Penng launches

Idea in December 2024, shipped product by August 2025. Mobile app, backend, five web platforms, AI marketing system. Every system built solo.

Where I work now

Cape Media Corp

Head of Digital Transformation & AI Integration

A traditional media company. Paper processes, legacy systems, the whole dinosaur package. I brought in AI tools, built custom internal software, modernized infrastructure, and moved the company from 2010 into the present. The “tech meets traditional industry” playbook, running daily.

Penng

Co-founder & sole engineer

Screen-free health wearable. R1,950/year subscription. Hardware shipping. Every piece of technology behind it built by one person. The mobile app, the backend, five web platforms, the AI marketing system. No dev team, no agencies.

Penng app and band

How it all connects

One engineer, one ecosystem.

Every system below was designed and built by me. They talk to each other.

Mobile

Health App

Flutter, iOS + Android

Web

Trainer Platform

Next.js, React

Web

Corporate Dashboard

Next.js, React

Core

Backend & API

Python, FastAPI, PostgreSQL, AWS

AuthPaymentsHealth DataMCP Bridge

Autonomous

AI Operating System

Claude, 20+ cron jobs

Data

Analytics Suite

7 sources, dashboards

Growth

Quiz Funnel & Ads

Lead gen, nurture, retarget

The full ecosystem

Everything I've built. One engineer.

FLAGSHIPiOS & Android

Penng Health App

  • Bluetooth integration with hardware band (pairing, firmware updates, live data streaming)
  • Reverse-engineered health scoring algorithms from industry leaders for strain, recovery, and sleep
  • AI food tracking from photos, voice, or barcodes (Gemini vision + USDA)
  • AI nutrition advisor with voice input/output (ElevenLabs)
  • 107+ workout types with GPS tracking and heart rate zones
  • Habit tracker, community leaderboards, challenges, and social gamification
  • Apple Health, Google Fit, and Strava sync
FlutterDartRiverpodFirebaseBLE SDKMixpanel
HomeSleepFood
AUTONOMOUSEC2 · 20+ scheduled jobs

AI Operating System

Powered byAnthropic+ OpenClaw

Creates

  • Weekly blog posts, auto-generated and published
  • Daily social media content
  • Weekly newsletter drafts
  • AI support responses (vector FAQ matching)

Monitors & acts

  • Auto-pauses underperforming ads
  • Scrapes competitor ad creative
  • Reddit market intelligence
  • Morning/evening Telegram briefings
  • 7-source metrics aggregation
  • Real-time conversion funnel tracking
Web Application

Trainer Platform

Full management system. Client roster, workout programs, session scheduling, payment tracking, public profiles, custom subscription tiers.

Trainer Platform
Web Application

Corporate & Club Dashboard

Unified dashboard for corporate wellness and sports clubs. Member management, group scheduling, billing, admin tools. Role-based access across five user types.

Corporate Dashboard
Multi-platform

Unified Support Inbox

Single inbox pulling from email, WhatsApp, Messenger, and Instagram. AI reads, matches against the knowledge base, and auto-responds or drafts replies.

Unified Support Inbox
AI · RAG · Voice

AI Advisor

Conversational AI with custom knowledge bases, voice chat, and configurable personas. RAG-powered retrieval over uploaded documents. Text and voice input/output.

AI Advisor
Custom dashboards

Analytics & Reporting

7-source data aggregation, conversion funnels, content performance, integration health monitoring. Feeds into the AI Operating System for autonomous decisions.

Analytics dashboard
Obsidian + custom tooling

Business Knowledge Base

Product specs, brand guidelines, strategy, content calendar. Custom vault scanner resolving links and generating context bundles for AI decision-making.

Business Knowledge Base
Web + Automation

Quiz Funnel & Lead Gen

Interactive quiz qualifying leads into automated nurture sequences. Cart abandonment, recovery emails, pipeline scoring. AI-generated ad campaigns.

Python · FastAPI · AWS

Penng Backend & API

Auth (Firebase + JWT + OAuth), health data processing, payments (PayFast), notifications, Strava sync, and the MCP bridge to live production data.

Full stack

FlutterDartPythonFastAPITypeScriptReactNext.jsPostgreSQLFirebaseAWSVercelTailwind CSSRiverpodSQLAlchemyOpenAI APIClaude APIGoogle GeminiElevenLabsShopifyPayFastMixpanelStrava API

Before Penng

Starlit Solution

2023 to 2024

Visit site →

Digital marketing agency I started at 21. Ran campaigns across social, content, and paid ads for multiple clients. The biggest lesson: doing marketing manually for five businesses teaches you what should be automated.

Starlit Solution website

Ultra Leads

2024

AI-powered pay-per-lead platform I designed and built from scratch. South Africa's first. Short-lived, but it proved I could take an idea, build the full product solo, and ship it.

Ultra Leads platform
Internal tool · Built for others

Email Software Service

Email outreach platform that drafted personalised responses based on lead data in the database. Made it easy for sales teams to know exactly how to respond to each lead without starting from scratch.

Internal tool · Built for others

AI Sales Companion

Conversational AI assistant for sales teams. Trained on product knowledge, objection handling, and pricing. Built to give businesses an always-on expert that sounds like their best closer.

Speaking

On stage at 16

Tomorrow's Leaders Convention, 2018. The Fourth Industrial Revolution. My co-presenter was Pepper, a humanoid robot that could read audience emotions in real-time. We used her to make a point: this stuff isn't coming. It's here.

Eight years later, I'm not presenting about the future anymore. I'm the one building it.

Education

University of Arizona

University of Arizona

Software Engineering, Part-time

2021 to present (4th year) · 3.5 GPA

Cambridge

Cambridge A Levels

Homeschooled, 2016

Chemistry (B), Maths (B), Physics (C), Economics (C)

Competitive squash

British Open (U19)

2019

US Open (U19)

2019

Western Province Junior

2016 to 2020

Western Province Senior

2021 to present

VOB 1st Team

2020 to 2023

UCT 1st Team

2024 to 2026

Modelling

ICE Models

International model since 14. South Africa, Germany, Switzerland, Turkey. Year in the Caribbean. Comfortable in front of cameras, on stage, and in places I've never been.

I love what I do.

Building things from scratch, solving hard problems, working with people who care about the outcome. If that sounds like your world, I'd enjoy the conversation.

fehrsen@penng.aiLinkedIn →
Irish & South African citizenCape Town, South Africa