# Moritz Stephan

> Cognition

Location: Stanford, California, United States
Profile: https://flows.cv/moritzstephan

## Work Experience
### Human Software Engineer @ Cognition
Jan 2024 – Present

### Undergraduate Research Assistant @ Stanford Artificial Intelligence Laboratory (SAIL)
Jan 2021 – Jan 2024 | Stanford, California, United States
Working under Chelsea Finn. Currently working on agents.

- Developed a method to fine-tune LLMs using a single sentence of feedback. First author, ICML '24: https://arxiv.org/abs/2402.10893
- Applied Meta-RL to automatically grade students' coding submissions. Co-first-author, NeurIPS '22 (oral): https://arxiv.org/abs/2211.08802

### Research Engineer @ Trunk Tools, Inc.
Jan 2023 – Jan 2023

### Product Manager @ Trunk Tools, Inc.
Jan 2022 – Jan 2023
Trunk Tools solves the skilled labor shortage by enabling project leaders to increase workforce productivity, safety and profitability by aligning incentives from top to bottom, encouraging efficiency and positively motivating the workforce.

### Advisor @ Fizz (YC S21)
Jan 2021 – Jan 2023 | Boston, Massachusetts, United States

### Co-Founder @ Fizz (YC S21)
Jan 2021 – Jan 2021 | Boston, Massachusetts, United States
Building the financial ally for young adults.

### SWE Intern @ Uber
Jan 2022 – Jan 2022 | New York, New York, United States
ML Engineering on Trip Pricing Team

### NLP & ML Engineering Intern @ Prewave
Jan 2020 – Jan 2021 | Vienna, Austria
Supply chain risk intelligence startup (used by Porsche, Audi, VW, ...)
-
 Building & optimizing NLP models to extract signals from massive public data streams

### Co-Founder @ Team Tumbleweed
Jan 2016 – Jan 2020 | Vienna, Austria
Space tech startup (+60 people in 4 countries)
-
Creating a wind-driven Mars rover to enable human exploration through superior surface data

### Software Developer (Military Service) @ Österreichisches Bundesheer (Austrian Armed Forces)
Jan 2018 – Jan 2019 | Vienna, Austria


## Education
### Master of Science - MS in Computer Science (AI)
Stanford University

### Bachelor of Science - B.S. in Computer Science (Theory)
Stanford University

### S21
Y Combinator

### The Masters School

### Sir Karl Popper Schule


## Contact & Social
- LinkedIn: https://linkedin.com/in/moritz-stephan
- Website: https://teamtumbleweed.eu
- Website: https://github.com/austrian-code-wizard

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Source: https://flows.cv/moritzstephan
JSON Resume: https://flows.cv/moritzstephan/resume.json
Last updated: 2026-04-01