Our instructors combine technical and business knowledge with years of hands-on teaching experience

Our Story

Cognitir (pronounced: cog-ni-teer) was founded by David Haber and Neal Kumar in August 2015 because both founders are passionate about teaching and find joy in helping others acquire knowledge. The main reason for this is simple: knowledge is a key ingredient in fostering innovation. If individuals can learn skills and problem solving techniques that help them solve the world’s toughest problems, what types of innovation will the world experience? The possibilities are endless.

Since founding Cognitir, David and Neal have worked collaboratively to create numerous technical training courses that have empowered thousands of students and professionals around the world.

Our Team

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David Haber

Co-Founder, Chief Product Officer

Instructor and Course Content Developer

David creates and manages Cognitir's products and technology. He has led programming workshops at the undergraduate and graduate levels, at blue chip companies, and world renowned management consulting firms.

David has experience working with both startups and large corporations. Previously, he was a lead software and machine learning engineer at Soma Analytics, an investor-backed and award-winning health-tech startup in London. David also worked on optimizing large-scale payment processing systems at Deutsche Bank in Singapore. Outside of Cognitir, he currently advises HiDoc, an early stage digital health startup in Germany.

David holds an MEng (First-Class Honours) in Computer Science from Imperial College London (UK) where he focused on statistical machine learning. He presented his work at international conferences and won several awards for his work. During his studies, he also served as a teaching assistant at Imperial College where he helped undergraduate students master fundamental computer science concepts.

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Neal Kumar

Co-Founder, Chief Executive Officer

Instructor and Course Content Developer

At Cognitir, Neal leads strategy, business development, and marketing & advises on new product development.

Outside of Cognitir, Neal runs his own boutique consulting practice and is a Small Business Development Center (SBDC) Business Counselor. As a consultant and counselor, Neal advises executive teams of both large corporations and small & medium enterprises on issues ranging from executing big data strategies to financial modeling & corporate finance.

He also leads training seminars for Wall Street Prep and has consistently received top reviews from attendees and created two training courses that were used in seminars worldwide. Before his consulting and training careers, Neal was a Teach For America Corps Member and taught high school mathematics in Saint Louis Public Schools (USA). Prior to joining Teach For America, Neal was an investment banker at JPMorgan and Houlihan Lokey.

Neal received his MBA from London Business School (UK) and BBA in Finance from the University of Notre Dame (USA). He is also a CFA Charterholder and a Member of the CFA Institute Education Advisory Committee (EAC) Working Body where he helps shape CFA Program Content.

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Rehgan Avon


Rehgan is an Industrial Systems Engineering graduate from The Ohio State University and has held positions as a Systems Engineer and Analyst at Fortune 500 companies. Currently she is an ETL Developer and Data Analyst for Clarivoy, a software start up company based in Columbus, Ohio. Rehgan was also one of the original founding members of the Big Data and Analytics Association at The Ohio State University. During her time at Ohio State she also served as a tutor for Calculus and Computer Science courses.

Rehgan has led Cognitir workshops at Northwestern University, University of Maryland - College Park, University of Michigan - Ann Arbor, University of North Carolina - Chapel Hill among other places.

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Benjamin Jakubowski


Ben joined Cognitir as a Data Science Instructor in early 2016. Currently a Data Science graduate student at New York University, he is broadly interested in using data science to improve decision making in the public and non-profit sectors. He also has deep experience as an educator and enjoys sharing data science skills and knowledge with Cognitir participants. Prior to matriculating at NYU, Ben was a DC Teaching Fellow.

Ben has led Cognitir workshops at Columbia University, MIT, New York University, and University of Pennsylvania among other places.

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Ishan Mehta


Ishan is a graduate of the California Institute of Technology holding degrees in economics and chemistry. While at Caltech, Ishan developed an econometric model for various currency pairs and used it to successfully develop an algorithmic trading platform. Additionally, Ishan has collaborated with the City of Pasadena to drive citywide economic growth through development and implementation of various traffic/parking allocation strategies. Furthermore, Ishan served as a consultant at Mars & Co where he worked closely with C-level executives to find synergies across its two primary business arms.

Ishan has led Cognitir workshops at Claremont McKenna College and Ohio State University among other places.

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Miguel Paredes


Miguel is a Data Science PhD candidate at MIT and is applying machine learning to healthcare within the ALFA group in MIT's Computer Science and Artificial Intelligence Lab (CSAIL). Miguel holds two Masters from MIT and a Computer Science undergraduate degree. Miguel has experience working in the public, private, and non-profit sectors and enjoys helping organizations tackle problems and uncover opportunities through deep analytics. Two of Miguel's current projects include: developing a decision-making support system to treat sepsis patients and predict their clinical outcomes and working with a Doctor in Peru's Children's Hospital in developing a Child Mortality Prediction system that will help save lives.

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Derek Sasthav


Derek has held various positions in business intelligence, data analytics, and management consulting roles where he has delivered innovative solutions to executive-level clients. He currently works in the Data Science Consulting team at the IBM North American Analytics Center. While studying Industrial Engineering at the Ohio State University, Derek led many initiatives including data science training seminars to both graduate and undergraduate students.

Derek has led Cognitir workshops at Columbia University, New York University, UCLA, and University of Chicago among other places.

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David Wanner


David is a graduate student at the University of Chicago where he is working on a team to implement machine learning techniques to predict and prevent readmission for patients with Chronic Obstructive Pulmonary Disease (COPD). Additionally, David works as a research assistant at UC's Urban Labs, supporting a data science team within the Crime Lab. David has previously worked as a data analyst at 84.51, founded in 2015 as the analytics company for Kroger. Prior to his work at UC, David was a Teach For America Corps Member in St. Louis and continued his work in education with the Noble Network in Chicago, teaching physics and starting the Robotics Club.

David has led Cognitir workshops at Ohio State University, University of Virginia, and University of Western Ontario among other places.

Want to join our team? Explore our open positions here.


Jit Kumar

Senior Advisor

Jit is currently a technical consultant and startup advisor in the Advanced Technology sector. He previously worked for Broadcom Corporation where he was a Senior Manager. Prior to joining Broadcom, he spent 26 years as a Technical Manager at Bell Labs, Lucent Technologies, and Agere Systems where he led large teams that pioneered advancements in data networking and speech recognition/synthesis.

Jit received his B.Tech from Indian Institute of Technology, Kanpur (India) and an MSEE from University of Notre Dame (USA). He previously served on the Conference Board and Technical Committee on VLSI of Signal Processing Society (IEEE) for 10 years. Jit has published 19 papers in leading IEEE Conferences and technical journals and has two patents to his credit.

Sean Rebecchi


Since 2014, Sean has worked as an independent consultant to several investors and early stage companies including IP Group, where he provided strategic analyses and recommendations to the Chief Investment Officer, and Soma Analytics, where he applied psychological principles to app UX design and coded statistical analyses in R.

Previously, Sean worked as a strategy consultant for 4 years, first as part of a commercial due diligence team that won 4 M&A advisory awards, then working predominantly on sales and marketing projects covering European and North American geographies.

Sean holds an MA in Natural Sciences from the University of Cambridge, an MSc in Business Psychology from the University of Hertfordshire and an MBA from London Business School (Dean's List - top 10% of students).