Pieter Sheth-voss
Founder at Protobi
Belmont, Massachusetts, United States
Summary
👤
Senior🎓
Top SchoolPieter Sheth-voss is a founder and applied-research technologist with 11+ years building data-first products and analytics tools from concept to market. He created Protobi, a web app and lightweight JavaScript library that brings collaborative, self-service research analytics to teams and corporate portals, and personally leads sales, client service, engineering coordination and support. His background spans decision sciences, optimization and healthcare market research—he led development of Provenance at Quintiles and has deep experience turning patient-level and commercial datasets into actionable models. A hands-on full-stack developer, Pieter has contributed practical features to popular JS libraries for Office and Excel generation—improving styling, charts and export fidelity—underscoring his focus on usable data presentation. He holds a PhD in Decision Sciences and Engineering Systems and combines academic rigor with entrepreneurial product craft.
11 years of coding experience
15 years of employment as a software developer
PhD, Decision Sciences and Engineering Systems, Del and Ruth Karger Prize for Outstanding Doctoral Dissertation, PhD, Decision Sciences and Engineering Systems, Del and Ruth Karger Prize for Outstanding Doctoral Dissertation at Rensselaer Polytechnic InstituteBS, Mechanical Engineering, BS, Mechanical Engineering at University of Illinois Urbana-Champaign
Github Skills (10)
xml10
javascript10
nodejs10
ppx10
charts10
file-format9
refactoring8
refactor8
html6
pdf-generation5
Programming languages (7)
Github contributions (5)
protobi/js-xlsx
Feb 2015 - Aug 2020
XLSX / XLSM / XLSB (Excel 2007+ Spreadsheet) / ODS parser and writer
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:95 commits, 9 PRs, 49 pushes in 5 years 6 months
Contributions summary:Pieter primarily contributed to the `js-xlsx` library, adding features and fixing bugs related to saving and exporting Excel files. They implemented the ability to save cell styles and added support for alignment and text rotation, indicating a focus on improving the formatting and presentation capabilities of the library. Additionally, the user removed dependencies on external libraries like Cheerio and jQuery, and refactored the code to use XMLBuilder, demonstrating a focus on code maintainability and efficiency.
xlsxcsvxlsodsxlsb
Ziv-Barber/officegen
Jan 2015 - Sep 2015
Standalone Office Open XML files (Microsoft Office 2007 and later) generator for Word (docx), PowerPoint (pptx) and Excell (xlsx) in javascript. The output is a stream.
Role in this project:Full-stack Developer
Full-stack DeveloperContributions:9 commits, 2 PRs, 33 comments in 7 months
Contributions summary:Pieter's contributions primarily involve extending the functionality of the officegen library, specifically for creating PowerPoint presentations. They implemented the ability to incorporate charts with varying visual styles and data formats. The user also added support for text formatting options like bold, italics, and font size. Furthermore, they introduced features like page breaks, line breaks and added the ability to include images in the generated documents.
xlsxxml-filespowerpointdocxmicrosoft-office
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