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Jonah Greenthal Email & Phone Number

I create software for knowledge and helping people. at Backblaze
Location: Chicago, Illinois, United States 6 work roles 3 schools
2 work emails found @fixer.com 3 phones found area 847 LinkedIn matched
✓ Verified May 2026 4 data sources Profile completeness 100%

Contact Signals · 2 work emails · 3 phones

Work email j****@fixer.com
Direct phone (847) ***-****
LinkedIn Profile matched
3 free lookups remaining · No credit card
Current company
Backblaze
Role
I create software for knowledge and helping people.
Location
Chicago, Illinois, United States
Company size
11 employees

Who is Jonah Greenthal? Overview

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Quick answer

Jonah Greenthal is listed as I create software for knowledge and helping people. at Backblaze, a company with 11 employees, based in Chicago, Illinois, United States. AeroLeads shows a work email signal at fixer.com, phone signal with area code 847, and a matched LinkedIn profile for Jonah Greenthal.

Jonah Greenthal previously worked as Senior Software Engineer at Backblaze and Owner, Software Developer, Vice President for Operations at National Academic Quiz Tournaments. Jonah Greenthal holds B.S., Mathematics from University Of Chicago.

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Email format at Backblaze

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{first}.{last}@fixer.com
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AeroLeads found 2 current-domain work email signals for Jonah Greenthal. Compare company email patterns before reaching out.

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Profile bio

About Jonah Greenthal

I'm a full-stack software developer. I care about creating polished work that helps people and makes the world a better place.I currently work for Backblaze, which provides backup and cloud storage services.I also work for National Academic Quiz Tournaments (www.naqt.com), a company that writes questions for and runs tournaments for quizbowl, an academic competition similar to Jeopardy! but for teams of high schoolers, college students, and middle schoolers. I mainly design and write software to support our tournament registration and results operations, question-writing and -editing, and customer relations. I also run some of NAQT's national championships, and write and edit questions.For nearly five years I was at Fixer, a technology-driven home improvement startup. I built software for homeowners, landlords, property managers and the like; for Fixer's handypeople; and for the customer service staff to help everyone get and keep their home in excellent shape.My background is in math and analytics; I have a B.S. in mathematics from the University of Chicago and was previously a data analyst at Facebook (focusing on the iOS app).My primary stack is Spring Boot with Kotlin and Postgres for the back end, and React for the frontend, but I'm highly adaptable and pick new skills up very quickly.

Listed skills include Teaching, Editing, Data Analysis, Microsoft Word, and 8 others.

Current workplace

Jonah Greenthal's current company

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Backblaze
Backblaze
I create software for knowledge and helping people.
500 Ben Franklin Ct. San Mateo, California 94401 United States
Website
backblaze.com
Employees
11
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Company profile
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6 roles

Jonah Greenthal work experience

A career timeline built from the work history available for this profile.

Senior Software Engineer

Current
Backblaze

San Mateo, California, US

Mar 2024 - Present

Owner, Software Developer, Vice President For Operations

Current
National Academic Quiz Tournaments
  • Architected and implemented full stacks for internal and public websites for tournament reg-istration and results, question writing/editing management, national championship game of-ficials, custom CRM software, online.
  • Developed online game “Buzzword” during COVID-19 pandemic when in-person competi-tion was not possible, including managing registration, billing, question and game security, special events, and promotions — play a.
  • Managed team of four on complete redesign and reorganization of public site
  • Developed custom ORM software to expose thread-safe, object-oriented domain objects cor-responding to persistent data
  • Conceived, designed, and developed new features for tournament registration and host man-agement, online payments, reporting and workflow improvement, and more
  • Identified vulnerabilities in a security analysis of internal and public websites; recommended and implemented fixes
Jun 2010 - Present

Staff Software Engineer

Fixer

Chicago, IL, US

  • Built React Native mobile app for fixers (handypeople) to manage jobs, tasks, photos, mate-rials, labor/billing, etc.
  • Re-designed and rebuilt customer booking flow, increasing conversion by 50%
  • Conceived and built solutions for customer service team to track jobs, staff, estimates, bids, and more
  • Architected and implemented software for learning management and evaluation, assigning staff to learning opportunities that match their own goals and management’s goals
  • Created infrastructure and interface for customers to enroll in membership/subscription ser-vice, replacing labor-intensive internal manual process
  • Created job-tracking app for customers to manage appointments and tasks
Nov 2018 - Apr 2023

Mobile Apps Analyst

Facebook
  • Designed and built dashboards and reports to drive decisions by management, engineering, and product teams
  • Conducted experiments to evaluate and inform new feature development
  • Created and applied tools and methods for analyzing data, primarily for Facebook’s iOS app
  • Incorporated user data and behavior research to inform decisions about features, marketing, and resource allocation for iPhone and tablet development
  • Designed and developed ETL pipelines for acquiring and reporting diverse usage and market data
Jul 2012 - Dec 2012

Information Security Intern

Health Care Service Corporation

Chicago, IL, US

Developed a CVSS- and DREAD-based risk assessment scale; participated in risk analysis engagements; learned computer system hacking techniques and defenses against the same.

Jun 2010 - Aug 2010

Developer

Extendasp

Developed test provisioning software for Microsoft Exchange, SharePoint, and Dynamics CRM.

May 2009 - Sep 2009
Team & coworkers

Colleagues at Backblaze

Other employees you can reach at backblaze.com. View company contacts for 11 employees →

JB Jd Bergesen Jd Bergesen Colleague at Backblaze South San Francisco, California, United States, United States View → MS Marc Suidan, Mba, Cpa Marc Suidan, Mba, Cpa Colleague at Backblaze San Jose, California, United States, United States View → AH Alyssa Hobal Alyssa Hobal Colleague at Backblaze Greater Boston, United States, United States View → DC Dave Cotten Dave Cotten Colleague at Backblaze Austin, Texas Metropolitan Area, United States, United States View → EF Earl Fry Earl Fry Colleague at Backblaze Redwood City, California, United States, United States View → EA Eric Adams Eric Adams Colleague at Backblaze Los Angeles Metropolitan Area, United States, United States View → AD Allison Deptula Allison Deptula Colleague at Backblaze Washington DC-Baltimore Area, United States View → JL Juyi Louise Chang Juyi Louise Chang Colleague at Backblaze San Francisco, California, United States, United States View → JF Julie F. Julie F. Colleague at Backblaze Oakland, California, United States, United States View → JS Jake Schwartz Jake Schwartz Colleague at Backblaze San Francisco, California, United States, United States View →
3 education records

Jonah Greenthal education

B.S., Mathematics

University Of Chicago

Master Of Science, Mathematics Teaching

University Of Illinois Chicago

Mathematics

University Of Illinois Urbana-Champaign
FAQ

Frequently asked questions about Jonah Greenthal

Quick answers generated from the profile data available on this page.

What company does Jonah Greenthal work for?

Jonah Greenthal works for Backblaze.

What is Jonah Greenthal's role at Backblaze?

Jonah Greenthal is listed as I create software for knowledge and helping people. at Backblaze.

What is Jonah Greenthal's email address?

AeroLeads has found 2 work email signals at @fixer.com for Jonah Greenthal at Backblaze.

What is Jonah Greenthal's phone number?

AeroLeads has found 3 phone signal(s) with area code 847 for Jonah Greenthal at Backblaze.

Where is Jonah Greenthal based?

Jonah Greenthal is based in Chicago, Illinois, United States while working with Backblaze.

What companies has Jonah Greenthal worked for?

Jonah Greenthal has worked for Backblaze, National Academic Quiz Tournaments, Fixer, Facebook, and Health Care Service Corporation.

Who are Jonah Greenthal's colleagues at Backblaze?

Jonah Greenthal's colleagues at Backblaze include Jd Bergesen, Marc Suidan, Mba, Cpa, Alyssa Hobal, Dave Cotten, and Earl Fry.

How can I contact Jonah Greenthal?

You can use AeroLeads to view verified contact signals for Jonah Greenthal at Backblaze, including work email, phone, and LinkedIn data when available.

What schools did Jonah Greenthal attend?

Jonah Greenthal holds B.S., Mathematics from University Of Chicago.

What skills is Jonah Greenthal known for?

Jonah Greenthal is listed with skills including Teaching, Editing, Data Analysis, Microsoft Word, Microsoft Excel, Tutoring, Powerpoint, and Research.

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