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

We are building AI agents that stress-test other AI applications. We have just raised a $6 million seed round back by Y Combinator, Moonfire, Firstminute, SciFi, Urban Innovation Fund, and other world-class investors including founders from PayPal, Slack, and Deel.

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.

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 occasionally 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!

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.