Sanchay Harneja
Founding Head Of Engineering at Collate
San Francisco Bay Area United States
Summary
👤
Senior🎓
Top SchoolSanchay Harneja is a seasoned engineering leader with 13 years of experience building software across trading, embedded systems, ads, data center networking, and healthcare, now serving as Founding Head of Engineering in the Bay Area. He has repeatedly joined early-stage teams and scaled them to production and exits or unicorn status—most recently helping Hippocratic AI grow to a $1.64B valuation and leading engineering at startups acquired by Apple and Cisco. Comfortable both as an IC and manager, he has led teams of up to 25 engineers while also shipping core technical contributions like a DSL for memory algorithms and a spreadsheet-diffing CLI/API that supports multiple formats. He gravitates toward hard problems—formal systems, SDN, multiomics data platforms, and LLM-powered healthcare agents—and is known as a go-getter who moves projects from prototype to production. Based in San Francisco, he pairs deep systems and backend expertise with practical product instincts and a track record of hiring and mentoring strong engineering teams. A curious tinkerer, he also invests time in open-source tooling to make complex workflows more reliable and extensible.
14 years of coding experience
14 years of employment as a software developer
Indian Institute of Technology KanpurNanodegree Deep Learning AI for Healthcare, Nanodegree Deep Learning AI for Healthcare at Udacity
Stackoverflow
1,588reputation
181kreached
4answers
8questions
git
top-5%
merge
top-5%
version-control
top-5%
Github Skills (19)
java10
javas10
apache-poi10
refactoring10
git9
merge9
version-control9
api-design8
testing7
mongodb6
firebase6
mongodb-query6
mongodb-indexes6
django-rest-framework6
expression-trees6
Programming languages (9)
Github contributions (5)
na-ka-na/ExcelCompare
Jun 2012 - Apr 2022
Command line tool (and API) for diffing Excel Workbooks
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:5 releases, 23 reviews, 95 commits in 9 years 11 months
Contributions summary:Sanchay primarily worked on refactoring and improving the Excel comparison tool. They modified the package structure, separated the core logic into distinct classes, and implemented a callback API to report differences. Furthermore, they made the code more adaptable by switching to the ISpreadSheet interface to support multiple spreadsheet file formats. The user also added support for .ods file format and introduced a debug flag.
command-line-toolexcel
na-ka-na/express
Jun 2016 - Aug 2025
Contributions:3 pushes in 9 years 3 months
minimalistframeworknodejsunopinionatedweb-framework
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