# Eashan Sinha

Engineer at Cognition building Devin / Devin Desktop; ex-Windsurf deployed engineer, YC founder (Synthr)  
Cognition  
San Francisco Bay Area

## At Cognition

- Role: Engineer (Engineering)
- Joined: Jan 2025
- How they joined: With Windsurf (https://www.autumn.ai/resources/cognition/acquisitions/windsurf)
- Before Windsurf: Technical Product Manager - Ads, TikTok
- Overlapped before Cognition with other Cognition people at: Codeium (Windsurf); IBM; TikTok (https://www.autumn.ai/resources/cognition/worked-together)

## Identity
- LinkedIn: https://www.linkedin.com/in/eashansinha
- X: @EashanSinha
- GitHub: https://github.com/eashansinha
- Domain: cognition.ai

## Notes
- Current role: Engineer at Cognition (LinkedIn headline 'Member of Devin's Staff'), role description 'Building Devin'; X bio reads 'Member of @DevinAI staff @cognition | former @windsurf'. (https://www.linkedin.com/in/eashansinha)
- Joined Windsurf (formerly Codeium) as a Deployed Engineer in 2025, then moved into Cognition when Cognition acquired Windsurf in July 2025; LinkedIn lists both 'Engineer at Windsurf (2025)' and 'Engineer at Cognition (2025)'. (https://www.linkedin.com/in/eashansinha)
- Most recent original post: 'Have been super excited for this launch for a while now   Feels like a brand new Devin Desktop'. (https://x.com/EashanSinha/status/2113826116318466344)
- Posted on X: 'Windsurf is now Devin Desktop! Work with and manage all your agents from one interface, including Devin ...', marking the Windsurf rebrand he lived through. (https://x.com/EashanSinha/status/2061891334286577746)
- Guest on iStart Insider Ep.12 with host Ela Adhikari, 'From Georgia Tech to Cognition: Y-Combinator Alum Eashan Sinha on AI Agents & Startups'; he describes how an intro CS class moved him from business to technology and says the ChatGPT launch 'was a really big defining moment for myself as well as my career'. (https://www.youtube.com/watch?v=E2eRY9fBDVM)
- Spoke at AI Engineer World's Fair 2025 (San Francisco) with the talk 'Mastering Engineering Flow with Windsurf' (15:20), opening 'I'm an engineer here at Windsurf' and walking through Cascade, AI flows, rules, workflows, memories and MCP. (https://www.youtube.com/watch?v=W_5tzQY-hVs)
- Credited teammate @Adhyyan for Devin's memory 'dreaming' launch: '"my AI dreamed about your codebase last night"  we consolidate memories overnight as humans, devin now does too ... great work by @Adhyyan and the team for the launch'. (https://x.com/EashanSinha/status/2107270061446910029)
- Posted on X: 'To close out an amazing week of launches at Cog, we just released Fusion in Devin Local and CLI  You can now pair a SOTA model with cheaper model to achieve frontier performance at a fraction of the cost', listing Fable 5.1 + SWE-2 as his go-to combo. (https://x.com/EashanSinha/status/2098609472721572132)
- Posted on X about SWE-2: 'Have been using SWE-2 as my daily driver for the last week and it's been incredible  The combination of speed and intelligence is something I haven't felt before and the model absolutely FLIES when coding or doing anything in Devin Desktop'. (https://x.com/EashanSinha/status/2098210442703245540)
- In the podcast he lists his internship path: 'My first internship was at a company called NCR... Then after that it was IBM. Then it was Tik Tok... I did two at Tik Tok. My last internship was as a PM at Tik Tok.' (https://www.youtube.com/watch?v=E2eRY9fBDVM)
- The World's Fair bio says he 'is currently focused on enhancing AI agent efficiency and performance with large codebases and enterprise use cases'. (https://www.youtube.com/watch?v=W_5tzQY-hVs)
- TikTok Ads: Technical Product Manager (2024) for Brand Innovation supporting launch of multiple TikTok Ads Manager (TTAM) products; earlier Software Engineer at TikTok (2023) building automations for the Lark product suite. (https://www.linkedin.com/in/eashansinha)
- Public headline says "Member of Devin’s Staff". (https://www.linkedin.com/in/eashansinha)
- Campus outreach for Cognition: VEST at UCLA thanked 'Eashan Sinha and Priya P. from Cognition' for demoing Windsurf and Devin at their GM; LA Hacks winners also thanked him for Devin access. (https://www.linkedin.com/posts/vestucla_huge-thanks-to-eashan-sinha-and-priya-p-activity-7432560408894291969-QMFu)
- Panelist on Windsurf's 'What's New in Windsurf - Wave 11' webinar alongside fellow Deployed Engineers Andrew Zhao and Gina Wang. (https://windsurf.com/events/wave_11_webinar)
- IBM Software Engineer intern (2022, Austin): built a React security-landscape analytics app and fine-tuned BERT models (SiEBERT, SecRoBERTa) on cybersecurity data. (https://www.linkedin.com/in/eashansinha)
- Georgia Tech VIP Program undergraduate researcher (2021-2022) on Automated Algorithm Design, using genetic algorithms via DEAP to optimize image-processing algorithms. (https://www.linkedin.com/in/eashansinha)
- Hey! My name is Eashan Sinha, and I'm a Georgia Tech Computer Science MS and BS graduate; this comes from the profile summary and preserves the person's own positioning. (https://www.linkedin.com/in/eashansinha)
- On Cognition culture: 'if your company hasn't held an offsite at a ranch where everyone sleeps in tents and line dances together, you're missing out' (Cognition Ranch 2026 offsite). (https://x.com/EashanSinha/status/2107324026549121368)
- Earlier Windsurf posts on X: 'No more flow action credits Also free o4-mini on windsurf for another week!' and 'Come stop by the @cognition booth at @aiDotEngineer code! We have swag ;)'. (https://x.com/EashanSinha/status/1991558910659162268)
- Georgia Tech Graduate Teaching Assistant (2023) for CS4400 Databases and CS3001 Computing Ethics; holds BS and MS in CS from Georgia Tech (hello.cv lists ML specialization, 4.0 GPA). (https://www.linkedin.com/in/eashansinha)
- Instructs and advises Generative AI and ML for Inspirit AI's AI + X programs (from 2023). (https://www.linkedin.com/in/eashansinha)
- Previous roles include Technical Product Manager - Ads at TikTok; Co-Founder at Synthr (YC); Software Engineer at TikTok; Graduate Teaching Assistant at Georgia Institute of Technology; Software Engineer at IBM; Undergraduate Researcher- Automated Algorithm Design at Georgia Tech VIP Program; SWT Intern at NCR Corporation; Founder and CEO at HeadStart Consulting. (https://www.linkedin.com/in/eashansinha)
- Location is San Francisco Bay Area. (https://www.linkedin.com/in/eashansinha)

## Experience
- Engineer at Cognition - San Francisco Bay Area (Jan 2025 - Present): Building Devin
- Engineer at Windsurf - San Francisco Bay Area (Jan 2025 - Present)
- Generative AI at Inspirit AI - Palo Alto, California, United States (Jan 2023 - Present): Instructing and advising GenAI and ML @ InspiritAI AI + X Programs
- Technical Product Manager - Ads at TikTok - San Jose, California, United States (Jan 2024 - Jan 2024): TPM for Brand Innovation supporting launch of multiple TTAM (TikTok Ads Manager) Products
- Co-Founder at Synthr (YC) - San Francisco, California, United States (Jan 2024 - Jan 2024): Accepted into Y Combinator. AI-Powered Unified IDE for Chip Design.
- Software Engineer at TikTok - San Francisco, California, United States (Jan 2023 - Jan 2023): - Built tailored solutions and automations for TikTok's Lark product suite
- Streamlined sales process by building directed product clickthrough samples
- Graduate Teaching Assistant at Georgia Institute of Technology - Atlanta, Georgia, United States (Jan 2023 - Jan 2023): Teaching Assistant for CS4400 - Databases and CS3001 Computing Ethics
- Software Engineer at IBM - Austin, Texas, United States (Jan 2022 - Jan 2022): - Built full-stack web application using React and JavaScript to display client security landscape analytics
- Applied and fine-tuned BERT models like SiEBERT and SecRoBERTa to cybersecurity data to improve insights and analytics accuracy
- Undergraduate Researcher- Automated Algorithm Design at Georgia Tech VIP Program - Atlanta, Georgia, United States (Jan 2021 - Jan 2022): - Worked on leveraging hybrid and genetic algorithms using the DEAP Python Library to optimize algorithms for image processing tasks
- SWT Intern at NCR Corporation - Atlanta, Georgia, United States (Jan 2021 - Jan 2021)
- Reached out rising seniors and juniors to join the organization, and was able to recruit numerous clients.
- 100% Success in Client Acquisition and Retention. 
- As business grew, I employed a Chief Financial Officer for the handling of company finances, an Accountant to schedule all meetings and communicate with clients on Microsoft Teams, and a Chief Editor to overlook all essays written by students.
- As CEO, I oversee all company operations and provide each and every guidance and consulting sessions.
- Business Development Intern at AT&T - Atlanta Metropolitan Area (Jun 2020 - Aug 2020): - Worked on strategic perspectives of AT&T's future in AI, IoT, Machine Learning, & Networking among others.
- Participated in AT&T Database and Networking Hackathon with President George Granger.
- Met with Warner Media, Xandr, HBO, & other Digital Media Companies.
- Attended live speaker events with Dr. Sanjay Gupta, Stedman Graham, & Chris Yeh, among others.
- Multiple scholarships in numerous different scholarship categories.
- College Application Tips, Consulting Services, and Interview Tips included.

## Education
- Georgia Institute of Technology - Master of Science - MS, Computer Science
- Georgia Institute of Technology - Bachelor of Science - BS, Computer Science

## Sources
- https://www.linkedin.com/in/eashansinha
- https://www.youtube.com/watch?v=W_5tzQY-hVs
- https://www.youtube.com/watch?v=E2eRY9fBDVM
- https://x.com/EashanSinha/status/1991558910659162268
- https://x.com/EashanSinha/status/2061891334286577746
- https://x.com/EashanSinha
- https://github.com/eashansinha
- https://windsurf.com/events/wave_11_webinar
- https://patch.com/georgia/sandysprings/riverwood-fbla-students-qualify-national-competition
- https://www.linkedin.com/company/cognition-ai-labs/posts
- https://x.com/EashanSinha/status/2113826116318466344
- https://x.com/EashanSinha/status/2107270061446910029
- https://x.com/EashanSinha/status/2098609472721572132
- https://x.com/EashanSinha/status/2098210442703245540
- https://www.linkedin.com/posts/vestucla_huge-thanks-to-eashan-sinha-and-priya-p-activity-7432560408894291969-QMFu
- https://x.com/EashanSinha/status/2107324026549121368


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