PeopleofSuperintelligence

Researcher

Jehoshua Bruck

Also known as Shuki Bruck

Jehoshua (Shuki) Bruck is an information theorist whose work connects neural networks, coding theory and molecular computing. After earning a Ph.D. in electrical engineering at Stanford in 1989, he published a 1990 paper on spurious memories in the Hopfield model and joined the Caltech faculty in 1994. He founded Caltech's Information Science and Technology program in 2003, co-founded the storage companies Rainfinity and XtremIO, and won the 2009 Feynman Prize for Excellence in Teaching. In 2011, he coauthored the Nature paper that built an artificial neural network out of DNA strands. Since July 2025, he is Gordon and Betty Moore Professor Emeritus at Caltech, and he is a co-founder and chairman of MemVerge.

Badges

Timeline

  1. 1982–1989

    Technion and Stanford degrees

    He earns B.Sc. and M.Sc. degrees in electrical engineering at the Technion–Israel Institute of Technology in 1982 and 1985. He completes a Ph.D. in electrical engineering at Stanford University in 1989.

  2. 1990

    Spurious memories in Hopfield networks

    In 1990, he and Vwani P. Roychowdhury publish "On the number of spurious memories in the Hopfield model" in IEEE Transactions on Information Theory. The paper shows that the outer-product method for programming a Hopfield network can leave many spurious stable states, exponential in the number of stored vectors, even when the vectors are orthogonal.

  3. 1994–2001

    Joining the Caltech faculty

    He joins Caltech as an associate professor in 1994, becomes a professor in 1998, and in 2001 becomes the Gordon and Betty Moore Professor of Computation and Neural Systems and Electrical Engineering. His industrial experience includes IBM Research, where he takes part in the design and implementation of the first IBM parallel computer.

  4. 2003–2005

    Founding Caltech's IST program

    He founds the Caltech Information Science and Technology (IST) program and serves as its first director from 2003 to 2005. IST studies information from the theory of information to novel information substrates, quantum information systems, biological circuits and complex social systems.

  5. 2005–2012

    Rainfinity and XtremIO acquired by EMC

    Rainfinity, a Caltech spin-off he co-founds and chairs, is acquired by EMC in 2005. He also co-founds and chairs XtremIO, which starts in Israel in 2009 and is acquired by EMC in 2012; its product is a scalable all-flash enterprise storage system.

  6. 2009

    The Feynman Prize for teaching

    He wins Caltech's Richard P. Feynman Prize for Excellence in Teaching in 2009, the Institute's most prestigious teaching honor. The prize recognizes his undergraduate class "Information and Logic," which he creates in 2007.

  7. 2011

    A neural network made of DNA

    In 2011, he coauthors a Nature paper with Lulu Qian and Erik Winfree describing the first artificial neural network made of DNA. Its four artificial neurons, built from 112 DNA strands, recall a mystery scientist from incomplete clues.

  8. Since 2025

    Emeritus professor and MemVerge chairman

    In June 2025, his students and colleagues hold an Information Celebration at Caltech in his honor. After 31 years at Caltech, he becomes Moore Professor Emeritus in July 2025, and he is a co-founder and chairman of MemVerge.

Career

  1. Since 1994California Institute of TechnologyAssociate Professor, Professor
  2. NowMemVergeCo-founder and Chairman
  3. 2009–2012XtremIOCo-founder and Chairman
  4. Until 2005RainfinityCo-founder and Chairman

Education

  1. 1989Stanford UniversityPh.D.
  2. 1985TechnionM.Sc.
  3. 1982TechnionB.Sc.

From the biography.

  1. 11% of AI doctorate holders from 2010 to 2016 founded or led a company or lab by 10 years after graduationIncludes Jehoshua Bruck. We estimate how often AI doctorate holders founded or led a company or lab by 10 years after graduation, how waiting times compare between founders and top jobs, and which universities trained the most.
  2. The Massachusetts Institute of Technology trained or employed 44 of the 187 AI major-prize winners, more than any other universityIncludes California Institute of Technology. The Massachusetts Institute of Technology trained or employed 44 of the 187 AI major-prize winners, more than any other university. We compare doctorate and 5+ year employment links, career timing and current workplaces for 187 major-prize and 1,111 best-paper winners.
  3. People shaping AI work at a median of 3 organizations over a career: 3 for university starters and institute and lab starters, versus 2 for company startersIncludes California Institute of Technology. Across 6,853 people shaping AI with a dated work role, we estimate a median of 3 parent organizations over a career (mean 3.6), comparing role groups, starting sectors and starting decades from the 1950s to 2020–2026.
  4. More people shaping AI studied at Massachusetts Institute of Technology than at any other institutionIncludes California Institute of Technology. We estimate where the people shaping AI studied and where their careers led. Massachusetts Institute of Technology leads with 467 former students, including 291 recorded doctorates.

Colleagues

People with dated positions at the same organization in the same years.

Sources and credits

Photo: We have no published photo of Jehoshua Bruck yet. Send us a free-licensed photo.

  1. Member profile #9177 | IEEE Information Theory Society itsoc.org. Checked 21 October 2026.
  2. On the number of spurious memories in the Hopfield model | CaltechAUTHORS authors.library.caltech.edu. Checked 21 October 2026.
  3. Jehoshua (Shuki) Bruck - Electrical Engineering ee.caltech.edu. Checked 21 October 2026.
  4. Shuki Bruck paradise.caltech.edu. Checked 21 October 2026.
  5. 2008-2009 Richard P. Feynman Prize for Excellence in Teaching provost.caltech.edu. Checked 21 October 2026.
  6. Caltech Researchers Create the First Artificial Neural Network Out of DNA caltech.edu. Checked 21 October 2026.
  7. Shuki Bruck shukibruck.caltech.edu. Checked 21 October 2026.
  8. Leadership - MemVerge memverge.com. Checked 21 October 2026.