/ curriculum vitae

Selected
work.

Jan (Hendrik) Pfrenger · Karlsruhe, Germany

hello@janpfrenger.com · linkedin · github

Experience

Arteus Energy

Feb 2026 – Jun 2026

Working Student, Project Development & Growth · Karlsruhe

Designed and implemented internal automation workflows using Claude Code, n8n, Make, and REST APIs, reducing manual work in regulatory and project-documentation processes. Structured project data and technical documentation to support regulatory workflows and project execution.

Terra One Climate Solutions

May 2024 – Feb 2026

Intern & Working Student, Project Development · Berlin / remote

Coordinated grid-connection workflows for utility-scale battery storage projects across Germany, collaborating with 40+ grid operators and internal teams. Managed 100+ GW of grid-connection applications and analyzed 28+ GW of formal feedback, including 11+ GW of positive grid confirmations. As an early hire, used Python, HubSpot, and Google Workspace to structure project data and improve workflows, earning strong feedback for ownership and consistent delivery.

Projects

Embedded Systems & Robotics Development

2026 – ongoing

ESP32 · Raspberry Pi · Arduino Nano · REST APIs · CAD

Built: breadboard-based sensor and display prototypes for real-time data acquisition, processing, and visualization. In development: a modular desktop companion integrating local sensors, external APIs, and a custom interface. Concept development: requirements and initial architecture for a running pace robot with motor control, encoder feedback, Bluetooth configuration, and fail-safe operation. Build notes.

Extracurricular

OpenAI

Jun 2026 – Present

Codex Ambassador Karlsruhe

Selected for OpenAI's Codex Ambassador program in Karlsruhe. Currently planning the first community formats focused on Codex, AI-assisted software development, and practical automation.

Young Founders Network e.V.

May 2024 – Present

Co-Initiator & Chapter Lead Karlsruhe

Co-initiated and lead the Karlsruhe chapter, engaging 100+ students, founders, and developers. Developing partnerships and future formats with Codex, JetBrains, and local collaborators.

Eisbaden Karlsruhe

Oct 2024 – Present

Organizer & Group Lead

Took over organizing and leading the community's cold-plunge events; member growth +320% since involvement. Planning a medical study with students from local universities.

Education

Karlsruhe Institute of Technology (KIT)

2024 – 2026

Coursework toward a B.Sc. in Industrial Engineering

Relevant coursework: Statistics (R), Mathematics, Operations Research, Java.

Burggymnasium Friedberg

Jul 2023

German Abitur · final grade: 1.7 (1.0 = highest)

Advanced courses: Chemistry (14/15), English (11/15). Recipient of the GDCh Award for outstanding achievement in chemistry as top of class 2023.

Awards

GDCh Prize for Best Graduate in Chemistry

Jun 2023

Gesellschaft Deutscher Chemiker e.V., best high school graduate in chemistry 2023.

Technical Skills

Python Java · foundational C/C++ · foundational R · foundational Git REST APIs ESP32 Raspberry Pi Arduino Nano Sensor integration OLED / display integration Claude Code n8n Make HubSpot Tinkercad Bambu Studio Blender

Languages

German (native) · English (C1) · French (B2)