About Justworks
compliance, health insurance, benefits, 401k, payroll, vendor, contractor payments, employee dashboard, user experience, saas, new hire reporting, tax filing, hr software, employee perks, payments, human resources, employer benefits programs, enterprise software, consumer internet, internet
Justworks's Tech Stack
Performance
Cloud
AI/ML
Decision Makers at Justworks
39 contactsYabing Wang
VP, Security and IT Services (CISO & CIO)
James Holdren
Engineering Manager
Yanqing Shi
Director of Engineering, Data Platform & AI
Ish Vasa
Engineering Manager, Risk
Cullen Macdonald
Engineering Manager
Douglas Moore
Engineering Manager
Justin Roman
Engineering Manager
Kathrin Ayer
Engineering Manager, Front-end Engineer, Focused on the Back of Front-end
Pau Santesmasses
Director, Frontend Engineering
Kevin Kneifel
Engineering Manager
Mohit Keswani
Engineering Manager
Ryan Taylor
Engineering Manager
Jeremy Jacobskind
Engineering Manager
Ryan McVerry
Engineering Manager
Tyler Clark
Engineering Manager
Jason Unger
Engineering Manager
David Daudelin
Engineering Manager
Andrew Sandley
Engineering Manager
Alex Lee
Software Engineering Manager
Joe Blossom
Director, Product & Engineering, International
Ken Little
VP of Engineering
Will Matos
Engineering Manager
Aggie Kelly
Engineering Manager
Michael Matyus
Engineering Manager
Michael Scotto
Head of Network Infrastructure Engineering
Liren Zhu
Engineering Manager
Emmanuel Etienne
Engineering Manager
Joanna Honikman
Engineering Manager
Mona Khalil
Senior Manager, Analytics Engineering
Matthew Tom-Wolverton
Director of Engineering, Justworks Labs
Zainab Ebrahimi
Engineering Manager
Jean Kim
Senior Engineering Manager
Micheal Pfirrmann
Senior Engineering Manager
Nichol Riccardello
Engineering Manager
Lily Chang
Data Engineering Manager
Jack Bishop
Engineering Manager, Justworks Hours
Alexander Nahmias
Engineering Manager, Mobile II
Micael Malta
Engineering Manager
Mark Napier
Engineering Manager
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Justworks's Position in the StackWho Database
- • Justworks is 1 of 6,565 human resources companies tracked in StackWho.
- • 6,560 human resources companies in our database have verified decision-maker emails (100% of the cohort).
- • 23,956 companies in New York are in the StackWho database.
- • 49 human resources companies are in the 1001-5000 employee range (same size as Justworks).
Technology detection from public web signals. Decision-maker contacts compiled from LinkedIn public profiles, company filings, and verified outbound testing. Methodology & sources · Updated July 2026.
Frequently Asked Questions
What technology does Justworks use?
Justworks uses CloudFlare CDN, Route 53, Sendgrid, Gmail, Google Apps, Microsoft Office 365, and 8 more technologies. This data is sourced from StackWho's technology detection engine.
How do I contact the decision makers at Justworks?
StackWho has verified email addresses for 39 decision makers at Justworks. Pro members can access direct emails for the CEO, CTO, VP of Engineering, and other key contacts. Use StackWho to reach Justworks directly for sales, recruiting, or partnerships.
What industry is Justworks in?
Justworks operates in the human resources industry, headquartered in New York, New York, United States. StackWho tracks technology stacks and decision maker contacts for companies across all industries.
Can I export Justworks's contact data?
Yes. StackWho Pro members can export decision maker contact data for Justworks and similar companies to CSV. Use the export feature to build targeted prospect lists segmented by technology stack, industry, or location.
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Decision Makers
Yabing Wang
VP, Security and IT Services (CISO & CIO)
James Holdren
Engineering Manager
Yanqing Shi
Director of Engineering, Data Platform & AI
Ish Vasa
Engineering Manager, Risk
Cullen Macdonald
Engineering Manager
Douglas Moore
Engineering Manager
Justin Roman
Engineering Manager
Kathrin Ayer
Engineering Manager, Front-end Engineer, Focused on the Back of Front-end
Pau Santesmasses
Director, Frontend Engineering
Kevin Kneifel
Engineering Manager
Mohit Keswani
Engineering Manager
Ryan Taylor
Engineering Manager
Jeremy Jacobskind
Engineering Manager
Ryan McVerry
Engineering Manager
Tyler Clark
Engineering Manager
Jason Unger
Engineering Manager
David Daudelin
Engineering Manager
Andrew Sandley
Engineering Manager
Alex Lee
Software Engineering Manager
Joe Blossom
Director, Product & Engineering, International
Ken Little
VP of Engineering
Will Matos
Engineering Manager
Aggie Kelly
Engineering Manager
Michael Matyus
Engineering Manager
Michael Scotto
Head of Network Infrastructure Engineering
Liren Zhu
Engineering Manager
Emmanuel Etienne
Engineering Manager
Joanna Honikman
Engineering Manager
Mona Khalil
Senior Manager, Analytics Engineering
Matthew Tom-Wolverton
Director of Engineering, Justworks Labs
Zainab Ebrahimi
Engineering Manager
Jean Kim
Senior Engineering Manager
Micheal Pfirrmann
Senior Engineering Manager
Nichol Riccardello
Engineering Manager
Lily Chang
Data Engineering Manager
Jack Bishop
Engineering Manager, Justworks Hours
Alexander Nahmias
Engineering Manager, Mobile II
Micael Malta
Engineering Manager
Mark Napier
Engineering Manager
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Browse New YorkTechnologies Used
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Sendgrid
- Gmail
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- Microsoft Office 365
- Greenhouse.io
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