Programmatic Prompt Optimization: Building a Spam Filter with DSPy and MIPROv2
Most prompt engineering today is manual and intuition-driven. We tweak wording, rearrange instructions, and evaluate outputs by gut feel.
Malte Hedderich
I build SaaS products that use LLMs and write about what holds up in production.
Right now I'm building Genhone, which pressure-tests SaaS ideas before you burn months on the wrong one. By day I lead teams shipping LLM applications. I write about evaluation, agent design, and the choices you regret at scale.
Projects
Two products built after hours. Both are live.
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Genhone
Pressure-tests SaaS ideas before you spend months on one. Free trial, with signup and card on file.
ActiveFirst commit January 11, 2026 · Launched April 21, 2026
https://genhone.com -
Genwriter
Matches your profile to a job ad and writes a cover letter for that role. Not a template with your name pasted in.
ActiveFirst commit November 16, 2023 · Launched August 14, 2024
https://genwriter.com
Writing
The full archive from blog.hedderich.pro, with the latest essays visible first.
Do You Know What Agents Are?
Everyone related to the tech industry certainly heard a lot of hype around agentic AI, agent communication protocols and multi agent systems.
Running State: Enhancing Short-Term Memory in AI Agents
In the rapidly evolving field of artificial intelligence, chat agents have become integral to customer service, technical support, online sales, and more.
Showing 3 of 5 posts
Now
Building
Working on Genhone's UX and building new features to improve ideas based on the evaluation.
Investigating
Custom agent setups in coding CLIs like Claude Code and Codex. I'm trying where these really work well and how to orchestrate workflows with multiple agents.
Background
ML Engineering Associate Manager at Accenture, leading teams that build production LLM applications. Before that, two years at Serviceware, where I shipped intent recognition, semantic search, and a production LLM app in 2023. I studied Business Informatics at TU Darmstadt, wrote my thesis on open-source MLOps, and spent a year at Tongji University in Shanghai studying Software Engineering.