Principal Software Engineer
Current
Jan 2023 - Present
AeroLeads people directory · profile
Jaap Frolich Email & Phone Number
Startups & Engineering
at
Walnut
1 work email found
@familyfive.app
3 phones found area 623 and 659
LinkedIn matched
✓ Verified Jun 2026
4 data sources
Profile completeness 100%
Who is Jaap Frolich? Overview
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Quick answer
Jaap Frolich is listed as Startups & Engineering at Walnut, based in Utrecht, Utrecht, Netherlands. AeroLeads shows a work email signal at familyfive.app, phone signal with area code 623, 659, and a matched LinkedIn profile for Jaap Frolich.
Jaap Frolich previously worked as Principal Software Engineer at Walnut and Software Engineering Manager at Walnut. Jaap Frolich holds Msc, Econometrics from Erasmus University Rotterdam.
Company email context
Email format at Walnut
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{first}@familyfive.app
86% confidence
AeroLeads found 1 current-domain work email signal for Jaap Frolich. Compare company email patterns before reaching out.
Profile bio
About Jaap Frolich
Jaap Frolich is a Startups & Engineering at Walnut. They possess expertise in big data, start ups, management consulting, machine learning, statistics and 31 more skills. Colleagues describe them as "Jaap has been a great colleague to me and the whole team. He adapts quickly to the work, and made major contributions to our projects." and "Jaap has proven to be a great, intelligent and dedicated colleague. Performing Ruby-on-Rails software development jobs on a very large-scale application in a highly complex environment is not an easy task. Jaap immediately found his way and successfully added new important functionalities, as well as came up with fundamental improvements. A good team player and a privilege to work with."
Listed skills include Big Data, Start Ups, Management Consulting, Machine Learning, and 32 others.
Current workplace
Jaap Frolich's current company
Company context helps verify the profile and gives searchers a useful next step.
16 roles · 25 years
Jaap Frolich work experience
A career timeline built from the work history available for this profile.
Software Engineering Manager
Jan 2022 - Jan 2023
Software Engineer
Jun 2021 - Jan 2022
Co-Founder / Cto (Acq By Spring Health)
Weldon is the result of the merger of Family5 and Weldon in March 2021, and was acquired by Spring Health.
Mar 2021 - Jul 2021
Co-Founder (Acq By Weldon)
Jan 2019 - Mar 2021
Co-Founder
Jan 2016 - Dec 2018
Sep 2014 - Dec 2015
Consultant / Senior Consultant
Expertise: Advanced Analytics & Data Visualization.
Feb 2013 - Sep 2014
Msc Thesis
Subject: applying (supervised) Machine Learning to unstructured data.
Jul 2012 - Feb 2013
Owner
Dynamicka worked with big multinationals and small startups, realizing their (web & mobile) apps.
2010 - Jan 2013
Developer
Websend Bv
Websend is the leading online mobile phone (subscription) retailer in the Netherlands. I assisted in the development of their platform. I was actively involved in implementing new features, new technologies, and analytics.
Feb 2011 - Dec 2011
Msc Thesis
Go About
Devised a strategy and future revenue model for technology startup Go About.
Feb 2010 - Aug 2010
Developer & Designer
Sundayafternoon
2009 - 2010
~1 yr
Developer
2009 - 2009
Junior Designer
Ask4Me China Group Limited
Internship at Design/engineering Agency Ask4Me Ltd. in Guangzhou, China (6 months)
Jan 2008 - Jul 2008
Co-Founder
Photonblast
Founded a small company with two co-founders offering web development.
2001 - 2004
~3 yrs
4 education records
Jaap Frolich education
Msc, Econometrics
Erasmus University Rotterdam
Pre-Master, Econometrics
Erasmus University Rotterdam
Msc, Strategic Product Design
Delft University Of Technology
Bsc, Industrial Design Engineering
Delft University Of Technology
FAQ
Frequently asked questions about Jaap Frolich
Quick answers generated from the profile data available on this page.
What company does Jaap Frolich work for?
Jaap Frolich works for Walnut.
What is Jaap Frolich's role at Walnut?
Jaap Frolich is listed as Startups & Engineering at Walnut.
What is Jaap Frolich's email address?
AeroLeads has found 1 work email signal at @familyfive.app for Jaap Frolich at Walnut.
What is Jaap Frolich's phone number?
AeroLeads has found 3 phone signal(s) with area code 623, 659 for Jaap Frolich at Walnut.
Where is Jaap Frolich based?
Jaap Frolich is based in Utrecht, Utrecht, Netherlands while working with Walnut.
What companies has Jaap Frolich worked for?
Jaap Frolich has worked for Walnut, Weldon, Family5, Cogo, and Deloitte Analytics Southeast Asia.
How can I contact Jaap Frolich?
You can use AeroLeads to view verified contact signals for Jaap Frolich at Walnut, including work email, phone, and LinkedIn data when available.
What schools did Jaap Frolich attend?
Jaap Frolich holds Msc, Econometrics from Erasmus University Rotterdam.
What skills is Jaap Frolich known for?
Jaap Frolich is listed with skills including Big Data, Start Ups, Management Consulting, Machine Learning, Statistics, Text Analytics, Quantitative Finance, and Business Strategy.
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