Engineering · Research & Engineering

Jacob Teo

“Cognition | CS @ MIT”

Joined
Jan 2025
How they joined
Directly
Before Cognition
Jump Trading GroupQuantitative Research Intern
Status
Current
Overlapped before Cognition
“at cognition @moritz_stephan was the goat at delivering value. it was a blast working with him and I'm so excited to see what's next with Hone!”
Research & Engineering · Aug 2026 · X

Autumn profile

Researched with Autumn · 2026-11-04
Details
LocationSan Francisco Bay Area
Company sitecognition.ai
UniversityMassachusetts Institute of Technology, National University of Singapore
React.jsDjangoNumPyWeb3TypeScriptC++Python (Programming Language)
Notes
  • Credited as a co-author of SWE-1.7 ('Frontier Intelligence at a Fraction of the Cost') alongside Ray Wang, Gary Chang, Steven Cao and Silas Alberti (equal-contribution byline); SWE-1.7 targets longer-horizon asynchronous tasks.Jul 8, 2026
  • Listed first in the author byline of Cognition's 'Introducing SWE-1.5: Our Fast Agent Model' (with Nikhil Jha and others), a frontier-size coding model served via Cerebras at up to 950 tok/s and launched in Windsurf; trained with end-to-end RL on the Cascade agent harness and beta-tested as 'Falcon Alpha'.Oct 29, 2025
  • Gave the talk 'Cognition's DeepWiki' at the LangChain SF meetup on LLM wikis and agent memory (co-billed with LangChain's Brace Sproul), covering DeepWiki's move from an orchestrated v1 to an agentic v2, wiki-quality metrics and four context-engineering principles; DeepWiki grew from Devin context to 1.4M indexed repos.Jul 28, 2026
  • On SWE-1.5 launch he posted: "The best way to make coding agents interactive is to just make them run faster than you can think. We're already hitting internal PMF with SWE-1.5, and this is only the beginning!" (via Techmeme, which carried the post).Oct 29, 2025
  • Works on Research & Engineering at Cognition since January 2025 per LinkedIn ('Building Devin'); he joined about six months before Cognition agreed to acquire Windsurf (July 2025).Jan 2025
  • MIT ICPC team 'Taxi' with Siyong Huang and Thomas Guo placed 18th at the ICPC 2023 World Finals (7/11 solved, held April 2024); the same trio competed at NAC 2022 as 'mit' and at the 2023 EC-Final as 'mit taxi'.Apr 18, 2024
  • IOI record for Singapore (as Jacob Teo Por Loong / jacobtpl): Silver at IOI 2015 (rank 37), Gold at IOI 2016 (rank 11), Silver at IOI 2018 (rank 42).Aug 2016
  • Promoted the talk on X: "excited to share about how we built DeepWiki at @cognition, and chat with @BraceSproul about the future of agent context and memory!"Jul 23, 2026excited to share about how we built DeepWiki at @cognition, and chat with @BraceSproul about the future of agent context and memory! rsvp here: https://t.co/ouxA2MWeEf
  • On the SWE-1.7 launch day he posted on X: "Our best model so far and much more to come :) Excited for everyone to try it in Devin!"Jul 8, 2026Our best model so far and much more to come :) Excited for everyone to try it in Devin!
  • Before Cognition, interned at Anysphere (Cursor) in January 2024, fine-tuning new models for Cursor Tab - early hands-on work on code-completion models two years before SWE-1.5.Jan 2024
  • Jump Trading: Quantitative Trading Intern (Chicago, summer 2023) working on US equity microstructure, execution algorithms and HFT models, and winner of the Jump Global Quant Trading Competition Challenge; returned summer 2024 as Quantitative Research Intern doing alpha research on HF equities and mid-frequency options and building an options trade simulator.Jun 2023
  • Research Science Institute 2017 researcher under Prof. Jelani Nelson (Harvard) on succinct data structures, producing arXiv:1709.09574 'Fillable arrays with constant time operations and a single bit of redundancy' with Jelani Nelson and Huacheng Yu.Sep 27, 2017

Updated 2026-11-04 · 34 sources · Researched by Autumn · Research anyone like this

Compiled from public sources by Autumn · Updated 2026-11-04

Photos: Jacob Teo, X avatar

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