Elias Pfeffer

Mechatronics Engineer

My public project portfolio

Interests:
Bitcoin
AGI
Engineering
Software Development
Finance

Featured Projects

Built an Electric ATV
2019-2020
Screenshot of Built an Electric ATV 1
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Screenshot of Built an Electric ATV 3
Screenshot of Built an Electric ATV 4
Screenshot of Built an Electric ATV 5

Custom-built electric atv (0-100km/h in ~3.6s; 60 kW with 6 kWh battery)

Hardware
Engineering
Electric Vehicles
Battery
BMS
Built an Embodied World Model Architecture
2025-now
Screenshot of Built an Embodied World Model Architecture

Built a self-thinking consciousness / embodied world model architecture for humanoid robots (not a LLM or GPT wrapper or similar)

AGI
Built a profitable trading algorithm
2024-now
Screenshot of Built a profitable trading algorithm 1
Screenshot of Built a profitable trading algorithm 2

Wrote a Trading Algorithm, which outperforms every other commonly known trading strategy like DCA (Dollar Cost Averaging), Hodl (buy and never sell), Lump Summing (buy all at once), etc..

Python
Trading
JavaScript
CSS
HTML
Next.js
Tailwind CSS
MongoDB
Engineered BitChat
2023-now
Screenshot of Engineered BitChat

Wrote a software for buying, selling, and sending money / bitcoin / stablecoins by simply writing a text message.

Java
Python
Backend
Frontend
Server
Golang
Spring-Boot
Škoda Klement eBike Project
BFO Mobility / ŠKODA • 2018 - 2019
Slide 1
Slide 2

The final Škoda Klement eBike

Helped with the development of the first prototype and built the battery system for the Škoda Klement eBike project.

Hardware
Prototyping
Engineering
Built a DIY eBike Kit
Personal Project • 2017 - 2018
The DIY eBike Kit
Here you can see cooling fins for the rear motor for faster cooling

The DIY eBike Kit

Developed and sold a custom eBike conversion kit

Hardware
Engineering
Entrepreneurship
Built a High-Performance DIY Electric Bike
Personal Project • 2016 - 2017
The completed high-performance electric bike
Close-up view of the bike
Custom battery pack assembly with nickel strips and 18650 cells
Inside view of the bike
Me, spotwelding the battery pack with a DIY spot welder out of a microwave

The completed high-performance electric bike

Built a custom electric bike achieving 0-100km/h in ~4s with 22kW power and a custom 3kWh 20s15p Li-Ion Battery

Hardware
Engineering
TESLA "25 Guns Taskforce" Working Student
TESLA - Berlin • 10/2020 - 02/2021
Thumbnail for Video for TESLA "25 Guns Taskforce" Working Student
Auf YouTube ansehen

I've met Elon & asked him for a job, then got hired for the 25 Guns Taskforce and saved Tesla €1.1M in construction damage prevention. Then I've helped accelerate the construction of the GIGA Berlin Factory, reported directly to E, assisted in the IPCEI-funding program setup for Tesla and helped hiring the other 25 Guns Taskforce members.

Project Management
Construction
Problem Solving
Bachelor of Engineering (B.Eng.)
Mechatronics with focus on automation • 2019 - 2025

I'm an Engineer in Mechatronics: combining mechanical engineering, electronics, and computer science.

Mechatronics
Automation
Engineering
C++
CAD (SolidWorks)
Assembler
Verilog
Designed and 3D printed a Janko Piano
2025
Screenshot of Designed and 3D printed a Janko Piano 1
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Screenshot of Designed and 3D printed a Janko Piano 3

A 3d printed Janko Piano with 3d printed keys and a 3d printed frame

Engineering
3D Printing
CAD

Other Projects & Publications

Bitcoin
AGI
Engineering
Software Development
other
Built an AI-CTO
Screenshot of Built an AI-CTO

Get a complete AI-powered technical department — frontend, backend, DevOps, and QA — with Claude Code as your Chief Technology Officer. One invoice. Ships to production. You only hear from us when it's done.

Software Development
Built an Aquaponic System
Screenshots of Built an Aquaponic System 1
Screenshots of Built an Aquaponic System 2
Screenshots of Built an Aquaponic System 3

Built an aquaponic system combining fish farming with hydroponic plant cultivation in a closed-loop ecosystem.

Engineering
other
Wrote a Book about self repeating systems
Screenshots of Wrote a Book about self repeating systems 1

My summary of the most common systems of the world

other
Minecraft HUD
Screenshot of Minecraft HUD

Minecraft-style HUD overlay for Mac and Windows that displays system info (battery, apps, activity) in a gaming interface with sound effects.

Software Development
Calendar365
Screenshot of Calendar365

Year-at-a-glance planner with a zoomable 365-day view, sticky notes, optional Google Calendar sync, and Supabase-backed sharing.

Software Development
NATO Early Warning System
Screenshots of NATO Early Warning System 1
Screenshots of NATO Early Warning System 2

Scrapes latest NATO news, creates president-level summaries and gives back a threat level.

Software Development
Built a Tesla solar charging automation
Screenshots of Built a Tesla solar charging automation 1
Screenshots of Built a Tesla solar charging automation 2

Built a repository to start/stop charging your Tesla when your solar panel produces more energy than you need. It reads out the power production via the Poweropti sensor

other
Software Development
Nostr Relay Speed
Screenshot of Nostr Relay Speed

Benchmarks Nostr relay speeds using NIP-66 discovery, displaying response times and latencies in a live leaderboard.

Software Development
My Container Space
Screenshot of My Container Space

Investor- and customer-facing website for a container storage rental business with availability tracking, mapping, and investment info.

Software Development
Blackstock Fund
Screenshot of Blackstock Fund

Black Stock Capital — algorithmic portfolio management with risk-adjusted alpha generation and historical performance metrics.

Software Development
AI Orchestrator
Screenshot of AI Orchestrator

Mindmap and canvas app with embedded interactive terminal nodes — build visual workflows by connecting terminal sessions and notes on an infinite canvas.

Software Development
Mesh Research
Screenshot of Mesh Research

A profitable trading algorithm — outperforms DCA, HODL, and Lump Sum strategies.

Bitcoin
Software Development
Longevity Protocol
Screenshot of Longevity Protocol

Web app exploring longevity protocols and health optimization strategies with interactive content.

Software Development
FoundersMap
Screenshot of FoundersMap

Co-founder matching platform that visualizes and connects founders based on skills, expertise, and team status.

Software Development
TikTok Skill Page
Screenshot of TikTok Skill Page

Landing page showcasing TikTok-ready skills and content formats.

Software Development
A possible solution to Climate Change
Screenshot of A possible solution to Climate Change

Problem Statement: The global atmosphere is shared by all, owned by none. Without accountability, each country has incentive to pollute while hoping others won't - leading to collective destruction. The Solution: This conceptual model of a satellite-monitored CO2 transparency system with democratic voting and economic enforcement, which would make emissions as trackable as Bitcoin transactions, solving the tragedy of the commons through blockchain-inspired accountability and transparency.

other
Prepared a Kickstarter Campaign
Screenshots of Prepared a Kickstarter Campaign 1
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Wanted to sell a charger for phone addicts which charges less and less until a certain limit. Ended up filming and cutting the kickstarter video but scrapped everything after realizing the calculation was wrong (3 hours per day = 11 years of life and != 15 years) and a friend thought it could harm people if their phone battery dies when they need it in an emergency. But for the protocol, here is the link to the website and the kickstarter video (was a lot of work).

other
LifePathPlaner

Plan long-term life paths and see what events (e.g., lifestyle changes) would impact.

Software Development
Programmed an Android App Prototype
Screenshots of Programmed an Android App Prototype 1
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Screenshots of Programmed an Android App Prototype 4
Screenshots of Programmed an Android App Prototype 5

An app to buy Bitcoin at a gas filling station

Bitcoin
Software Development
make-fetch-json-pick-easy

Minimal TS helper for extracting specific fields from any JSON API.

Software Development
Cursor Ubuntu 24.04 Install/Update Script

Shell script to install and update Cursor on Ubuntu 24.04.

Software Development

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Location

Pestalozzistr. 65
72762 Reutlingen
Germany