About

Portrait of Toby Pohlen in a light suit
London

Researcher, software engineer, musician

From 2011 to 2016 I studied computer science and mathematics, focusing on computer vision and machine learning. I joined DeepMind in 2017, then left in 2023 to join the founding team of xAI (now SpaceXAI), where I scaled the London office to 40+ engineers and built the production infrastructure behind Grok. I left in March 2026 to work on music. My first single, “Love Is Wise,” is out October 30.

xAILondon
Founding EngineerJun 2023 – Mar 2026

Part of the founding team, working on the AI production stack.

Google DeepMindLondon
Staff Research EngineerAug 2021 – Jun 2023

Tech lead of a major research project (17 engineers), co-lead of a cross-organisational engineering team, and people manager for 4 engineers.

Senior Research EngineerOct 2019 – Aug 2021

Large-scale distributed reinforcement learning, tech lead on various research projects, research on distributional RL.

Research Engineer IIMay 2018 – Sep 2019

AlphaStar: research on imitation learning and engineering of large-scale evaluation infrastructure; tech lead on research projects.

Research EngineerApr 2017 – Apr 2018

Ape-X DQfD; research on imitation learning.

Earlier
  • SCHUFA Holding AG, Data Scientist, WiesbadenOct 2016 – Mar 2017
  • Microsoft, Software engineering intern, OsloAug – Oct 2015
  • Computer Vision Group, RWTH Aachen, Student research assistantOct 2014 – Mar 2016
  • wfp:2 GmbH & Co. KG, Web developerFeb 2011 – Sep 2013
  • WFMG GmbH, Web developerMar 2006 – Jun 2015
RWTH Aachen University · 2014 – 2016M.Sc. Computer ScienceMinor in mathematics. Grade 1.0, graduated with distinction.
Thesis: “Semi-Supervised Deep Learning for Semantic Image Segmentation”
RWTH Aachen University · 2011 – 2014B.Sc. Computer ScienceMinor in mathematics. Grade 1.2, graduated with distinction.
Thesis: “Semantic Segmentation of Cabinets using Attribute Graph Grammars”

Grades in the German system, where 1.0 is the highest.