MAIHEM (YC W24)

Founding AI Engineer (LLM & ML)

Job description

About MAIHEM

At MAIHEM, our mission is to ensure that AI benefits all of humanity.

We are a Y Combinator-backed AI startup that just raised a $6 million seed round.

We are building a state-of-the-art simulation platform using AI agents that stress-test other AI applications. We enable companies to assess and optimize the performance, reliability, and security of their AI systems through hyper-realistic user simulations. We ensure AI systems work reliably for all humans and across all real-world use cases – not just on academic benchmarks.


Our Culture

We are building an all-star team and we want our founding members to set the highest bar in terms of work ethics, drive to improve, and teamwork. Our key values are: 

  • Nerdy, friendly, relentlessly curious – we are proud and friendly nerds and we intensely love what we do!
  • Work hard, play hard – we often have to work 60+ hour weeks and expect the same from our team. We also have lots of fun as a team inside and outside of the office.
  • Meritocracy, always – you own and earn your destiny. The best argument wins, not the loudest voice or the most senior team member.
  • Diversity and inclusion among humans – for diversity and fairness reflected in AI.


Why Work at MAIHEM

  • We ensure AI will benefit all of humanity.
  • We have the resources to achieve our mission. We have raised a $6 million seed round backed by Y Combinator, Moonfire, Firstminute, SciFi, Urban Innovation Fund, and other world-class investors including founders from PayPal, Slack, and Deel.
  • We are developing cutting-edge AI technology by leveraging our PhD research on safety for autonomous vehicles and natural language processing.
  • We have customers and are growing fast. It’s the perfect timing, a massive market, and we’re assembling an all-star team to build a multi-billion dollar company.
  • Work with two YC founders & AI PhDs to solve a generational problem.


About the Founders

Max Ahrens (CEO) did his PhD and Postdoc in Natural Language Processing at the University of Oxford. During his Postdoc, he was also a research project leader working with the Alan Turing Institute and the British Ministry of Defence. Previously, he worked as a consultant with McKinsey, advising globally operating companies on digitization strategies.

Eduardo Candela (CTO) holds a PhD in AI Safety for Autonomous Vehicles at Imperial College London, and an MSc in Operations Research from MIT. Eduardo is deeply passionate about building state-of-the-art AI products – he previously worked as a technical program manager at Tesla and a data scientist at the Bosch Center for AI.


Your Role to Shape MAIHEM

As MAIHEM’s Founding AI Engineer, you will build the most advanced AI simulation and stress-testing platform in the world.

Your qualifications

You have demonstrated the ability to build world-class AI/LLM applications, with a strong emphasis on building agentic systems:

  • 2+ years of work experience deploying LLM/ML models to production
  • Degree in Computer Science, Engineering, AI, Math, Physics, or similar – or equivalent additional work experience
  • Excellent communication skills to interact with founding team and customers 
  • Ability to understand and implement technical state-of-the-art research papers
  • Proficiency to write production-level code for AI/LLM based applications
  • Proficiency with advanced Python workflows, including (Pytorch, Langchain/LlamaIndex/OpenAI or similar LLMOps libraries, Scikit-learn, pandas)
  • Proficiency with version control (Git)
  • Experience implementing NLP models/LLMs for classification, sentiment detection
  • Experience implementing predictive machine learning models
  • Experience implementing open source LLMs (from Hugging Face, Github, ...)
  • Experience with GPU management for LLM deployment
  • Experience with fine-tuning LLMs

Nice to have

  • Worked at a fast-paced startup before
  • Experience with adversarial models
  • Experience with RAG
  • Experience with pre-training AI models
  • Experience with RLHF/RLAIF
  • Experience with AWS/Azure
  • Experience with Docker
  • PhD in STEM

Benefits

Competitive salary + equity + we take care of you:

  • Private health insurance
  • Additional pension contributions
  • Free lunch
  • Free gym
  • Curiosity allowance for books, museum memberships, library cards, courses, ...

We are excited to get to know you! 

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