18 — Germany & Guatemala

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Community
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Code Edits
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Apps Shipped
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Started At
Featured Work

Projects that
define my journey

const builder = {
  name: "Markus Hoffmann",
  age: 18,
  codeEdits: 252847,
  ships: true
};
2025 Activity
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Total Edits
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Avg/Day
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Day Streak
Less
More
250K+
Code edits in 2025
~700
Edits per day
View Flutterflow Wrapped →
Seed-Backed Startup

Pipoll

The Human Stock Market — invest in people, not stocks. Backed by Silicon Valley investors at seed stage.

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Solo Founder

Altaria

AI-powered spiritual health tracker. "Fitness app for the soul" with 200K+ community across social media.

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Hackathon Winner

ChallengeMe

Goal tracking with social accountability. Built in 72 hours. Won 1st place + incubation.

Exited at 15

Leanabol

U.S. supplement DTC brand. Funded a Times Square billboard from revenue. Sold to competitor.

Timeline

Experience

CTO & Co-Founder — Pipoll
OCT 2025 — PRESENT

Leading engineering for the world's first Human Stock Market platform. Seed-backed by Silicon Valley investors. Building cross-platform experiences with Flutter and Firebase.

Founder — Altaria App
SEP 2024 — PRESENT

Built a "fitness app for the soul" — AI-powered biblical chat, streak tracking, and spiritual growth metrics. 200K+ community on Instagram. Solo developed in Flutter/Dart with Firebase and RevenueCat.

Hackathon Winner — DGO Regensburg
NOV 2024

Technical lead for winning team at 72-hour Startup Factory hackathon. Built ChallengeMe MVP from scratch. Won incubation support and office space.

Software Engineer — AppSystems
JAN 2024 — AUG 2024

Built responsive web applications for business clients while in high school. Modern front-end architectures, production-ready software.

Founder & CEO (Acquired) — Leanabol Supplements
APR 2022 — MAY 2023

Built U.S. supplement company at age 15. Reached thousands of customers. Funded a Times Square billboard from revenue. Exited to competitor.

Technical Arsenal

Skills & Tools

Dart
Expert — Daily driver
JavaScript / TypeScript
Advanced
Python
Advanced — AI/ML work
Rust
Systems programming
Go
Backend services
Swift
Native iOS
Flutter
Expert — Production apps
FlutterFlow
Expert — 250K+ edits
Firebase
Expert — Auth, Firestore, Functions
RevenueCat
Advanced — Subscriptions
React Native
Cross-platform
Kotlin
Native Android
React
Advanced
Next.js
Advanced — SSR/SSG
HTML/CSS
Expert
Tailwind CSS
Advanced
Vue.js
Progressive framework
Svelte
Reactive framework
Node.js
Advanced
Express.js
Advanced
Firebase Functions
Advanced — Serverless
REST APIs
Expert
GraphQL
Intermediate
FastAPI
Python APIs
PostgreSQL
Relational DBs
Redis
Caching
LLM Integration
Advanced — Production AI
OpenAI API
Advanced
Prompt Engineering
Expert
AI Chatbots
Advanced — Altaria
TensorFlow
Deep learning
PyTorch
Neural networks
LangChain
AI orchestration
Fine-tuning LLMs
Model customization
Firebase Hosting
Expert
Vercel
Advanced
Git / GitHub
Expert
CI/CD
Intermediate
AWS
Cloud infrastructure
Docker
Containerization
Kubernetes
Orchestration
Terraform
Infrastructure as code
Firestore
Expert — NoSQL
Firebase Analytics
Advanced
Data Modeling
Advanced
MongoDB
Document DB
Supabase
Backend as a service
Pinecone
Vector DB for AI
Product Strategy
Expert — 4 products shipped
UI/UX Design
Advanced
Figma
Advanced
MVP Development
Expert
User Research
Intermediate
Agile / Scrum
Intermediate
Growth Marketing
Expert — 200K+ organic
Social Media Strategy
Expert
Community Building
Expert
Content Marketing
Advanced
ASO
Intermediate
Analytics
Advanced — Data-driven
Fundraising
Advanced — Seed raised