# Ray Wang

![Ray Wang](/resources/cognition/portraits/ray-wang.webp)

ML Engineer at Cognition (Windsurf) | Ex-Apple CoreOS  
Cognition  
Mountain View, California, United States

## At Cognition

- Role: ML Engineer (Engineering)
- Joined: Jan 2025
- How they joined: With Windsurf (https://www.autumn.ai/resources/cognition/acquisitions/windsurf)
- Before Windsurf: Senior Secure Enclave Engineer, CoreOS, Apple
- Overlapped before Cognition with other Cognition people at: Codeium (Windsurf); MIT; Apple (https://www.autumn.ai/resources/cognition/worked-together)

## Identity
- LinkedIn: https://www.linkedin.com/in/wangray007
- X: @ghostly_gray
- GitHub: https://github.com/wangray
- Website: https://raywang.tech
- Domain: cognition.ai

## Notes
- Joined Cognition in Aug 2025 after Cognition acquired Windsurf (July 2025); his announcement reads verbatim: "Update: Excited to be joining Cognition to work on the ML models driving the future of software engineering!" (https://www.linkedin.com/posts/wangray007_update-excited-to-be-joining-cognition-to-activity-7364775334266753024-ocBj)
- On X he wrote verbatim: "One of the most exciting things about Cognition is the research that our ML team is cooking on a daily basis. Glad to have been a part this effort." (https://x.com/ghostly_gray/status/2064172512293052479)
- Listed as a co-author of Cognition's SWE-1.6 Preview and SWE-1.6 release posts (authors include Carlo Baronio, Ben Pan, Sam Lee, Eric Lu, Steven Cao, Rohan Choudhury, Adam Zweiger, Ray Wang, Gary Chang, Silas Alberti); SWE-1.6 shipped GA in Windsurf at up to 950 tok/s. (https://cognition.com/blog/swe-1-6)
- Windsurf inference team: he thanked "my Windsurf teammates Brian Shimanuki Jonathan Ma Kaushik Varadharajan Cheng-Yuan Lee Benjamin Bajd. It was a privilege to make GPUs go brrr with you all on model inference." - so his Windsurf work was model-serving/inference, not product engineering. (https://www.linkedin.com/posts/wangray007_update-excited-to-be-joining-cognition-to-activity-7364775334266753024-ocBj)
- At Cognition he named his new ML research/infra collaborators verbatim: "Silas Alberti Gary (Bin) Chang Emile Timothy Anand Jacob Teo, and many others. We're just getting started!" Silas Alberti leads much of Cognition's model research. (https://www.linkedin.com/posts/wangray007_update-excited-to-be-joining-cognition-to-activity-7364775334266753024-ocBj)
- Joined Windsurf (Codeium) as ML Engineer in Jan 2025, "Working on inference for the models powering the first agentic coding IDE"; current Cognition role: "Working on ML research and infrastructure to shape the future of human software engineering". (https://www.linkedin.com/in/wangray007)
- Co-author of Cognition's SWE-1.7 post (RL on a Kimi K2.7 base; multi-cluster training across three continents), alongside Gary Chang, Steven Cao and Silas Alberti. (https://www.alphaxiv.org/abs/2607.swe-1-7)
- Co-author of Cognition's "Introducing FrontierCode" blog (June 2026) with Eric Lu, Ben Pan, Deniz Birlikci, Sam Lee, Rohan Choudhury, Fermi Ma, TC Qin, Carlo Baronio and Silas Alberti, per an arXiv citation. (https://arxiv.org/html/2609.28850v1)
- Co-started MIT's security club and CTF team, TechSec (per his About page). (https://raywang.tech/about/)
- Spent Jan 2019 to Sep 2024 at Apple as Senior Secure Enclave Engineer on CoreOS, "Building a security-critical OS and embedded firmware in the Secure Enclave Processor (SEP)"; a jump from low-level security to ML inference in 2025. (https://www.linkedin.com/in/wangray007)
- DEF CON CTF Qualifier 2017: TechSec teamed with Lab RATs (Lincoln Lab's CTF team) and RPISEC, placed 10th and qualified for DEF CON CTF 2017; he worked the weekend with Rahul (fortenforge) at Lincoln's BeaverWorks space. (https://raywang.tech/2017/05/03/2017/DEF%20CON%20CTF%20Qualifier%202017/)
- On X, the day SWE-1.7 was published (2026-07-08), he posted verbatim: "We know model training." (https://x.com/ghostly_gray/status/2074889503412719742)
- Most-starred open-source repo is WinDBG-for-GDB-users (100 stars), a guide for exploit developers moving from GDB to WinDBG; other repos are CTF dumps (ctf_dump, browser_sploits, pwnable_kr, pwnable_tw) and an MIT Pokerbots 2015 bot. (https://github.com/wangray/WinDBG-for-GDB-users)
- At MIT Lincoln Laboratory: Cyber System Assessments intern in Group 59 (summer 2017), then MEng research assistant (Sep 2017 to Feb 2019). (https://www.linkedin.com/in/wangray007)
- Reposted Jeff Wang's July 2025 post on the "crazy" week at Windsurf (Google licensing deal/leadership departure, then the Cognition acquisition), the transition that brought him into Cognition. (https://x.com/ghostly_gray/status/1946836486533398996)
- Worked through the Matasano/Cryptopals crypto challenges (Set 7 with fortenforge) and published writeups; GitHub has matasano-crypto and matasano-crypto-set8 repos. (https://raywang.tech/page/2/)
- Wrote arts reviews (dance, theater, concerts) and took photos for The Tech, MIT's student newspaper. MIT News credits The Tech's Ray Wang with an interview of John Urschel. LinkedIn skills include Journalism. (https://thetech.com/authors/ray-wang)
- Oct 2026 LinkedIn post promotes an MIT Club of Northern California poker night "Thanks to Vivian Huang for organizing and Cognition for hosting!". (https://www.linkedin.com/posts/wangray007_mit-club-of-northern-california-activity-7518083695002439680-jNaX)
- Personal blog raywang.tech covers Black Myth: Wukong lore translations, notes on reading Chinese literary fiction (2024), a hobbies essay and an AI short story inspired by MIT classmates' adversarial-ML research. (https://raywang.tech)
- Took MIT 6.826 Principles of Computer Systems (Fall 2017, Butler Lampson, Nickolai Zeldovich, Frans Kaashoek), writing Coq proofs of storage structures. (https://raywang.tech/page/2/)
- Competed in the NSA Cybersprint CTF in Dec 2015, his first writeup. (https://raywang.tech/page/3/)
- Pre-MIT security internships: MIT IS&T Security and Resilience (2015, monitoring a 16-million-IP address space) and Cisco Defense Orchestrator (2016). (https://www.linkedin.com/in/wangray007)

## Experience
- Member of Technical Staff at Cognition (Aug 2025 - Present): Working on ML research and infrastructure to shape the future of human software engineering
- ML Engineer at Windsurf (Jan 2025 - Present): Working on inference for the models powering the first agentic coding IDE
- Senior Secure Enclave Engineer, CoreOS at Apple - Cupertino, California (Jan 2019 - Sep 2024): Building a security-critical OS and embedded firmware in the Secure Enclave Processor (SEP)
- Masters of Engineering (MEng) Research Assistant at MIT Lincoln Laboratory (Sep 2017 - Feb 2019)
- Cyber System Assessments Intern at MIT Lincoln Laboratory - Lexington, MA (May 2017 - Sep 2017): Group 59, Cyber System Assessments
- Software Engineering Intern at Cisco - Cambridge, MA (May 2016 - Sep 2016): Summer intern on the Cisco Defense Orchestrator team, a Cisco-funded SaaS security startup in Cambridge.
- Security and Resilience Intern at MIT Information Systems & Technology - Cambridge, MA (Jun 2015 - Sep 2015): Interacting with Lancope Stealthwatch service for network flow data, Splunk for integrated IT data logging, and RequestTracker for issue tracking.

Monitoring security for 16 million IP address space, 3Tb/hr of network traffic, and 500 million Splunk events logged/day

## Education
- Massachusetts Institute of Technology - Master of Engineering - MEng, Computer Science - (Jan 2018 - Jan 2019)
- Massachusetts Institute of Technology - Bachelor of Science - BS, Computer Science - (Jan 2014 - Jan 2018)

## Sources
- https://www.linkedin.com/in/wangray007
- https://www.linkedin.com/posts/wangray007_update-excited-to-be-joining-cognition-to-activity-7364775334266753024-ocBj
- https://cognition.com/blog/swe-1-6
- https://raywang.tech/about/
- https://raywang.tech/2017/05/03/2017/DEF%20CON%20CTF%20Qualifier%202017/
- https://api.github.com/users/wangray/repos?per_page=100&sort=updated
- https://x.com/ghostly_gray
- https://www.alphaxiv.org/abs/2607.swe-1-7
- https://arxiv.org/html/2609.28850v1
- https://raywang.tech/page/3/
- https://raywang.tech/page/2/
- https://www.newswire.com/news/team-usa-selected-for-premier-international-biology-olympiad-142579
- https://thetech.com/authors/ray-wang
- https://raywang.tech
- https://www.linkedin.com/in/wangray007?miniProfileUrn=urn%3Ali%3Afsd_profile%3AACoAABKh9uoB5qvpoZTplPTgBqM6X3P8O0VRGAg
- https://api.github.com/users/wangray
- https://www.linkedin.com/in/jakejooyoung?miniProfileUrn=urn%3Ali%3Afsd_profile%3AACoAAAo2Uc0BoP7k4ADd96hd6NJjpao2tOtA3eM
- https://www.scribd.com/document/941329874/2013-Usnco-Top-147-Students
- https://cognition.com/blog/swe-1-6-preview
- https://x.com/ghostly_gray/status/2064172512293052479
- https://x.com/ghostly_gray/status/2074889503412719742
- https://github.com/wangray/WinDBG-for-GDB-users
- https://x.com/ghostly_gray/status/2098070651424981397
- https://x.com/ghostly_gray/status/1946836486533398996
- https://www.linkedin.com/posts/wangray007_mit-club-of-northern-california-activity-7518083695002439680-jNaX


Researched with Autumn (https://www.autumn.ai) from public sources. Updated 2026-11-04. Profile: https://www.autumn.ai/resources/cognition/people/ray-wang · Everyone at Cognition: https://www.autumn.ai/resources/cognition/people