Engineering · Member of Technical Staff

Edison Zhang

“Engineering @ Cognition”

LinkedInGitHubWebsite
Joined Cognition
Jul 2025
How they joined
With Windsurf
Before Windsurf
Nuna Inc.Software Engineer Intern
Status
Current
Overlapped before Cognition
Sources1linkedin.com2techcrunch.com

Autumn profile

Researched with Autumn · 2026-11-04
Details
LocationSan Francisco Bay Area
Company sitecognition.ai
LanguagesEnglish, Mandarin Chinese
UniversityUC Santa Barbara
Renaming Slack Channels
Notes
  • Listed as a co-author of Cognition's 'Introducing SWE-1.5: Our Fast Agent Model' (2025-10-29) alongside Jacob Teo, Nikhil Jha, Connor Fogarty, Gary Chang, Theodor Marcu, Albert Tam, Sean Sullivan, Swyx and Silas Alberti; SWE-1.5 was trained with end-to-end RL on Cognition's Cascade agent harness and served via Cerebras at up to 950 tok/s in Windsurf.Oct 29, 2025Introducing SWE-1.5: Our Fast Agent Model (co-author)
  • Joined Windsurf (formerly Codeium) as a Software Engineer in March 2025, then became Member of Technical Staff at Cognition in July 2025, the month Cognition acquired Windsurf.Jul 2025
  • Presented a Windsurf launch video, 'Windsurf now supports Claude Sonnet 4.5!' (YouTube, 58s, 2025-09-29).Sep 29, 2025
  • Public headline says "Engineering @ Cognition".
  • Turkish coverage by NTV renders the same GPT-5 statement and titles him 'Windsurf Muhendislik Lideri Edison Zhang' (Windsurf engineering lead), citing a 50% drop in tool-calling errors versus other frontier models.Aug 2025
  • Studied Computer Science at UC Santa Barbara (2022-2025), finishing in about three years and moving straight into Windsurf in March 2025.2025
  • Frequent collaborator Tanay Biradar: co-built 'pylot' (reinforcement learning for flight simulation) with Biradar, Conner Khudaverdyan and Casey Linden, and 'secret-hitler-player' (applying LLMs to play Secret Hitler, 2024) with Biradar and Jeremi Nuer.May 2024
  • Earlier internships: Software Engineer Intern at Nuna Inc. in San Francisco (Jun-Sep 2024), and Software Engineer Intern then Co-Op at Wolfspeed in Durham, NC (Jun-Dec 2023).Jun 2023
  • Hi, I'm Edison; this comes from the profile summary and preserves the person's own positioning.
  • GitHub bio reads 'Member of Technical Staff @ Cognition'; account created October 2022 with 25 public repos, mostly TypeScript, Svelte, Lua and Go.Oct 2022
  • Previous roles include Software Engineer at Windsurf; Software Engineer Intern at Nuna Inc.; Software Engineer Co-Op at Wolfspeed; Software Engineer Intern at Wolfspeed.
  • Active in Data Science UCSB: spoke on its internship-experience panel with Tanay Biradar, Sarah Lew, Irena Wong and Anu Maddali, and is listed on the club's GAIA project organized by Tanay Biradar, Mitali Gaidhani and Daniel Naylor.

People they worked with before

Aakash MahalingamCodeium (Windsurf)Brian SmitchesCodeium (Windsurf)Chris DiazCodeium (Windsurf)Gina WangCodeium (Windsurf)Graham MorenoCodeium (Windsurf)Hannah Miller-JonesCodeium (Windsurf)Jacob AddingtonCodeium (Windsurf)Jeff WangCodeium (Windsurf)Jia WuCodeium (Windsurf)Marcel SchwagerCodeium (Windsurf)Mark JabbourCodeium (Windsurf)Matt BerglandCodeium (Windsurf)

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Everyone at Cognition →

Updated 2026-11-04 · 13 sources · Researched by Autumn · Research anyone like this

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

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