Building at the Intersection

Tech entrepreneur combining algorithmic thinking, market dynamics, and behavioral insights to build ventures that create real value.

5+
Years
IEEE
Published
EXIST
Funded
Scroll

Expertise

Combining technical excellence with business acumen to build innovative solutions that drive real value

Full-Stack Development

Building modern, scalable web applications with cutting-edge technologies

React & Next.js
Node.js & Express
PostgreSQL & MongoDB
AWS & Cloud Services

Blockchain & Web3

Developing secure decentralized applications and smart contract solutions

Solidity & Smart Contracts
Web3.js & Ethers.js
DeFi Protocols
Token Economics

AI & Machine Learning

Creating intelligent, data-driven systems with real-world business applications

LLM Integration
Custom RAG Models
Predictive Analytics
ML Pipelines

Beyond Technical Skills

Entrepreneurial Mindset

Building ventures from concept to market-ready products

Business Strategy

VC experience and strategic consulting background

Team Leadership

Leading cross-functional teams to deliver impact

Projects

Building innovative solutions from concept to market - combining technical expertise with entrepreneurial vision

Projects & Ventures

Dopamining: Social Entrepreneurship

Dopamining: Social Entrepreneurship

Building a mobile application for AI-powered fitness tracking & habit building

ReactPythonSwiftSolidity+2
LMGTFY: Let Me Google That For You

LMGTFY: Let Me Google That For You

A fun and playful website that helps people learn to search for themselves - with style and a touch of humor.

ReactTailwindCSSJavaScriptWeb APIs
MoreThanCode: AI Music

MoreThanCode: AI Music

Website featuring my own AI-generated music, including an advent calendar of musical experiments.

React.jsWebdesignAI Music GenerationSong writing
Crypto Market Dashboard

Crypto Market Dashboard

Real-time cryptocurrency analysis dashboard featuring interactive charts, market statistics, and trend visualization

ReactRechartsFramer MotionTailwindCSS
Daily Requests
500,000+
Data Points
Millions
Uptime
99.99%
Latency
<50ms

High-Scale Crypto Market API

Enterprise-grade cryptocurrency data infrastructure processing 500K+ daily requests with real-time market data and historical analytics

Node.jsPostgreSQLRedisDocker+2

Academic Research

Published Research

ChainShare: Blockchain-Based Document Sharing for LLMs

Master thesis research on ownership-preserving document-sharing ecosystem for LLM use cases, addressing data sovereignty and fair compensation in AI training pipelines.

Smart ContractsLLMsWeb3ReactNode.jsPython
View on IEEE Xplore
Conference
BCCA 2025
7th International Conference on Blockchain Computing and Applications
Organizer
IEEE
Location
Dubrovnik, Croatia
Date
Oct 14-17, 2025
FairProfit: Supply Chain Transparency

FairProfit: Supply Chain Transparency

Blockchain-based system enabling transparent and fair profit distribution across supply chains, developed as bachelor thesis at RWTH Aachen

ReactSolidityIPFSMetaMask+2

About

Tech entrepreneur and full-stack developer with interdisciplinary background combining business strategy, technical execution, and academic research

Research published at IEEE BCCA 2025

Education

RWTH Aachen University

M.Sc. Computer Science2022 - 2025
BeBuddy • Aachen Blockchain Club
Thesis
ChainShare: Blockchain-based Document Sharing for LLMs (Published at BCCA 2025, IEEE)
M.Sc. Management & Economics2022 - 2025

Yonsei University

M.Sc. Economics & Finance (Exchange)Feb 2025 - Jun 2025
International Student Program

EPFL

B.Sc. Computer Science (Exchange)2022
Blockchain Student Association • Erasmus Student Network

RWTH Aachen University

B.Sc. Computer Science2019 - 2022
BeBuddy • UROP
Thesis
Blockchain-based payment to enable fair profit distribution

Experience

Researcher

Fraunhofer FIT
2024 - 2025

Blockchain & LLMs

Master Thesis - Paper published at BCCA 2025 (IEEE)

Visiting Associate

Boston Consulting Group
2024

ERP Diagnostics & Digital Transformation

Technical Venture Analyst

Freigeist
2023 - 2024

Seed & Pre-Series A Investments

Full-Stack Developer & AI Engineer

Dopamining
2022 - 2023

Blockchain & AI Solutions

Software Developer & Consultant

Freelance
May 2021 - Present

Full-Stack Development & Technical Consulting

Sascha Nievelstein

Interdisciplinary researcher and developer bridging academic excellence with technical innovation.

Legal

© 2026 Sascha Nievelstein. All rights reserved.

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