Fundraising Fox

Rohan Vij

Founder

Founder at ReasonBlocks

San Francisco, California, United States

FoundedReasonBlocks · YC

About

Rohan Vij studied information systems and artificial intelligence at Carnegie Mellon University and has worked on molecular dynamics and AI research, as well as AI applications for distributed energy at ENGIE and IoT research at UC Davis. He is building ReasonBlocks with co-founder Sajeev, focusing on cost reduction and reliability improvements for large language models.

Founder at ReasonBlocksYC X26

Intro paths

YC

Rohan went through Y Combinator (Spring 2026) — any YC alum in your network can reach them through the YC community.

GP

Their group partner at YC was Aaron Epstein, General Partner at Y Combinator — the partner who ran ReasonBlocks's batch and knows the company first-hand. YC profile ↗

→

In turn, Rohan can intro founders to ReasonBlocks's investors below.

ReasonBlocks's investors · 1

Y CombinatorSan Francisco · $500K checks · since 2026

Co-founders at ReasonBlocks

SMSajeev Magesh
Sajeev MageshCEO & Co-Founder

Experience

  1. ReasonBlocks (YC P26)Co-Foundercurrent2026 — presentSan Francisco, California, United States
  2. Clark Construction GroupProject Management Intern2026San Francisco, California, United States
  3. Carnegie Mellon University's College of EngineeringUndergraduate Research Assistant @ CMU M5 Lab2025 — 2026Pittsburgh, Pennsylvania, United States
  4. JEI Learning Centers, LLCAI Engineer2025Dublin, California, United States
  5. ENGIEGeographic Information Systems Intern2024Fremont, California, United States
  6. University of California, DavisResearch Assistant, IoT Systems2024Davis, California, United States
  7. Various StartupsInternships & Exploring2022 — 2024

Skills & more

Project ManagementBudgetingPresentation SkillsMLOpsRetrieval-Augmented Generation (RAG)Vector DatabasesArcGIS ProductsComputer VisionC (Programming Language)Embedded SoftwareHigh Performance Computing (HPC)Julia (Programming Language)
+12 moreMATLABMolecular DynamicsWeb Application DevelopmentNode.jsReact.jsLeadershipTeachingCurriculum DevelopmentTypeScriptAgile MethodologiesComputer ScienceProgramming
  • AWS Certified Cloud Practitioner — Amazon Web Services (AWS)
  • IT Specialist - Python — Certiport - A Pearson VUE Business
  • Certified Associate in Python Programming — OpenEDG Python Institute

From Rohan's professional profile.

Frequently asked questions

Who is Rohan Vij?
Rohan Vij studied information systems and artificial intelligence at Carnegie Mellon University and has worked on molecular dynamics and AI research, as well as AI applications for distributed energy at ENGIE and IoT research at UC Davis. He is building ReasonBlocks with co-founder Sajeev, focusing on cost reduction and reliability improvements for large language models.
Where does Rohan Vij work?
Rohan Vij is Founder of ReasonBlocks.
What companies did Rohan Vij found?
Rohan Vij founded ReasonBlocks.
Where did Rohan Vij go to school?
Rohan Vij studied at Carnegie Mellon University (Bachelor of Science - BS, Information Systems + Artificial Intelligence); Dublin High School.

Founder mafias

Y Combinator mafia8,773

Also came through, then founded or led a company.

Sam AltmanPresidentFounded Tools for Humanity +3Jessica LivingstonCo-founderFounded Y CombinatorAlexis OhanianYC Summer 2005Founded RedditFred EhrsamYC Summer 2012Founded Nudge +1Matt HuangYC Winter 2011Founded HotspotsTrae StephensYC Winter 2022Founded Pursuit +1

+ 8,766 more

Carnegie Mellon University mafia231

Also came through, then founded or led a company.

Kai-Fu LeeResearch Computer Scientist / Assistant ProfessorFounded 01Lucy GuoComputer ScienceFounded Passes +1Joshua XuMaster's degreeFounded HeyGenWilliam GuttmanDistinguished Service Professor of Economics & Special Advisor to ProvostFounded CurvePoint +3Dr. Manu KumarBSFounded K9 Ventures +2Rodney BrooksResearch ScientistFounded Rethink Robotics +2

+ 224 more

Engie mafia6

Also came through, then founded or led a company.

Piyush MathurCEO, Simpa NetworksFounded OdysseyPauline TordeurIntern at the International Department for the Asia-Pacific regionFounded HivyAssil HalimiReactor Operation, Core Physics EngineerFounded Apollo Atomics, Inc.Laurent BourgouinProject Manager / Team LeaderFounded SampBastien FabreShort Term Power Trading AnalystFounded Iris Lab

Dublin High School mafia5

Also came through, then founded or led a company.

Rohil KhareHigh School DiplomaFounded SigmanticAISky YangGolden State Seal Merit DiplomaFounded Imagine AINeel SharmaFounded SentrialSajeev MageshFounded ReasonBlocks

Same school

Also attended Carnegie Mellon University410

Kai-Fu LeeChairman of Sinovation Ventures and CEO of 01.AILucy GuoCo-founder of Scale AI; founder & CEO of PassesJoshua XuCo-founder & CEO of HeyGenJavier SolteroSenior Venture Partner at Felicis VenturesAvi BharadwajInvestment Director at Intel CapitalOren EtzioniVenture Partner at Madrona Venture Group

+ 404 more

Also attended Dublin High School4

Rohil KhareFounder at SigmanticAISky YangFounder at Imagine AINeel SharmaFounder/CEO at SentrialSajeev MageshCEO & Co-Founder at ReasonBlocks

Shared employers

Also worked at ReasonBlocks (YC P26)1

Sajeev MageshCEO & Co-Founder at ReasonBlocks

Also worked at Clark Construction Group2

Steve Dell'OrtoVenture Partner, Construction at Builders VCChris DolanChief Data Center Officer at Crusoe

Also worked at Carnegie Mellon University's College of Engineering1

Sreedhar RadhakrishnanPrincipal in Residence at Team Ignite Ventures

Also worked at ENGIE26

Juliette PetitChief of Staff at Keen Venture PartnersPaul TardiveauAssociate - Growth at Iris CapitalHendrik Van AsbroeckManaging Partner at Astanor VenturesBenoit DescoqsInvestment Manager at 115KLéopold LambertPartner, Head of Product at OSS VenturesDan VickeryPartner at Segue Sustainable Infrastructure

+ 20 more