Isidor is looking for an intern to join our London office (Soho) for immediate start, full-time, in-person. Required background is in investment banking and/or private equity (at minimum, internship experience at top-tier institutions). Excellent financial modelling skills are necessary.
Key terms:
Start: Dec-2025 / early Jan-2026 (as soon as possible)
Duration 3-6 months (flexible)
Pay: $6,500 pcm
About Us
Isidor is building the foundation of reliable AI. We believe that the next leap in AI depends as much on understanding and measuring model behavior as it does on model size. To make AI trustworthy, we need systems that verify outputs, benchmark performance, and automate evaluation across billions of examples.
Isidor was founded by engineers and researchers who care deeply about precision, transparency, and scientific rigor. We are a small, fast-moving team working directly with frontier AI labs and enterprise to make evaluation as measurable and reproducible as training itself.
Website: www.isidor.ai
Founded in September 2025, Isidor raised an oversubscribed $3.6m pre-seed from leading funds including Gradient Ventures, futurepresent and Seedcamp, along with angels from Google DeepMind, Perplexity, KKR, Balyasny, Perella Weinberg and more.
Skills Required
- Background in investment banking and/or private equity
- Internship experience at top-tier institutions
- Excellent financial modeling skills
- Full-time, in-person availability in the London office
What We Do
Isidor builds infrastructure for reliable artificial intelligence. Its systems verify model outputs, benchmark performance, and automate evaluation across billions of examples. Founded by engineers and researchers, the company works with frontier AI labs and enterprises to make model behavior measurable, transparent, and reproducible. Isidor also provides production-ready data workflows, pipelines, tools, and automations that help research teams move experiments forward.
