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Jon Ursenbach Email & Phone Number

Lead API Engineer at ReadMe
Location: San Francisco, California, United States 13 work roles
1 work email found @readme.com 4 phones found area 415, 212, and 206 LinkedIn matched
✓ Verified Jun 2026 4 data sources Profile completeness 86%

Contact Signals · 1 work email · 4 phones

Work email j****@readme.com
Direct phone (415) ***-****
LinkedIn Profile matched
3 free lookups remaining · No credit card
Current company
Role
Lead API Engineer
Location
San Francisco, California, United States

Who is Jon Ursenbach? Overview

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Quick answer

Jon Ursenbach is listed as Lead API Engineer at ReadMe, based in San Francisco, California, United States. AeroLeads shows a work email signal at readme.com, phone signal with area code 415, 212, 206, and a matched LinkedIn profile for Jon Ursenbach.

Jon Ursenbach previously worked as API Engineer at Readme and Principal Engineer, API at Vimeo.

Company email context

Email format at ReadMe

This section adds company-level context without repeating Jon Ursenbach's masked contact details.

{first}@readme.com
86% confidence

AeroLeads found 1 current-domain work email signal for Jon Ursenbach. Compare company email patterns before reaching out.

Profile bio

About Jon Ursenbach

Jon Ursenbach is a Lead API Engineer at ReadMe. He possess expertise in memcached, git, jquery, css, javascript and 22 more skills. Colleagues describe him as "Jon is an outstanding senior software engineer and phenomenal leader, and I was fortunate to work with him across two major products (Postlets and Malone, both at Zillow) and a dozen other smaller projects on both teams. He's prolific and hard-working and can tackle any problem, no matter how large or small. I thoroughly enjoyed working with him and have the utmost faith in his abilities. He genuinely cares about code quality, completion times, and team development. I would trust him with any challenge.", "Jon is an outstanding developer with a true passion for programming. He easily ranks in the top 3 people I would hire outright if the opportunity presented itself. We completed some large projects on schedule almost solely due to Jon's tenacity and ability.", and "Jon is a great web-developer. He is super-fast, detail oriented and easy to work with. He was able to effectively translate our business requirements into well-functioning site features. He contributed tremendously to the re-design of Decorati."

Listed skills include Memcached, Git, Jquery, Css, and 23 others.

Current workplace

Jon Ursenbach's current company

Company context helps verify the profile and gives searchers a useful next step.

ReadMe
Readme
Lead API Engineer
AeroLeads page
13 roles

Jon Ursenbach work experience

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

Lead Api Engineer

Current

San Francisco, California, US

Apr 2022 - Present

Api Engineer

San Francisco, California, US

■ Supporting and extending our support of OpenAPI.■ Management of our open source projects, repositories, and initiatives.■ Management of our security program.

Jun 2019 - Apr 2022

Principal Engineer, Api

New York, NY, US

■ Project manager on a handful of internal integrations.

Feb 2019 - May 2019

Manager, Api Engineering

New York, NY, US

■ Oversaw the release of API v3.4 which included support for tus.io resumable uploading.■ Migrated the Vimeo Developer website into a new stack, refreshed OpenAPI-powered design, and onto Google Cloud.■ Modified our documentation engine to support OpenAPI and oversaw its adoption through the engineering organization.■ Ran a team of three people.

Jan 2018 - Feb 2019

Senior Engineer, Api

New York, NY, US

■ Created an open source library to overhaul our API documentation.■ Instituted a new API design process across the company using API Blueprint.■ Took over ownership of all our open source API SDKs for PHP, Python, and Node.

Mar 2016 - Jan 2018

Full Stack Php Engineer

Seattle, Washington, US

■ Migrated an internal address information API, Malone, used by the entire company, from a legacy homegrown framework over to Laravel, with zero downtime.■ Lead migrating a rental listing site, Postlets, from the same homegrown framework over to Laravel.■ Dropped Postlets unit test execution speed from 10 minutes to 2.5 through dependency injection and.

Sep 2014 - Feb 2016

Senior Software Engineer

Aol

New York, NY, US

■ Helped create an event management system for the Engadget Events team.■ Integrated the gdgt product into the Engadget brand. ■ Worked on an initiative that had the goal of revolutionizing the backend publishing platform that all AOL blogs use.

Feb 2013 - Aug 2014

Senior Engineer

Gdgt

◿ Acquired by AOL in February 2013 ◺■ Reworked our product reviewing system to allow for granular rating of product features, something nobody else was doing. It was successful enough that it became the main focus of the website going forward as we found users preferred to quickly review products with a set of checkboxes than write long-form reviews.■.

Aug 2009 - Feb 2013

Senior Web Developer

New York, US

■ Created a PayPal-based billing system to handle industry-specific online purchases.■ Profiled and fixed bottlenecks in our homegrown MVC framework to handle a rapid increase in traffic.■ Completely rebuilt the methods we stored products to alleviate legacy issues and accommodate new business needs.

Jun 2008 - Jul 2009

Engineer, Co-Owner

Decoy Media

■ Creator of a small browser-based MMORPG, Medieval Battles.■ Served as project manager, including writing game and feature specs, iterative discussions with cofounder, and development execution.■ Served as community manager, including collecting and responding to feedback and collecting user experiences for improved game design & development.

May 2001 - Jul 2008

Web Developer

Deniro Marketing

■ Created an image storage engine, codenamed Hashbrowns, to replace an existing installation of MogileFS. Hashbrowns handled growing traffic needs in ways that MogileFS could not, saving the company a remarkable amount of server costs.■ Lead architect behind the creation of a complete billing system to replace an existing, flawed version that was causing.

Oct 2006 - Jun 2008

Freelance Webmaster

Expo Marketing & Services, Inc.

■ Developed multiple PHP & MySQL-driven websites.■ Maintained website content on a weekly basis. Worked in conjunction with the design and marketing teams to ensure brand integrity.

Apr 2006 - Apr 2007

Web Developer / Production Assistant

■ Created and maintained websites and advertisements for clients.■ Assisted in the creation and weekly production of numerous television shows in real estate markets all over the country.■ Conducted research for both internal and client projects.

Jun 2005 - May 2006
FAQ

Frequently asked questions about Jon Ursenbach

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

What company does Jon Ursenbach work for?

Jon Ursenbach works for ReadMe.

What is Jon Ursenbach's role at ReadMe?

Jon Ursenbach is listed as Lead API Engineer at ReadMe.

What is Jon Ursenbach's email address?

AeroLeads has found 1 work email signal at @readme.com for Jon Ursenbach at ReadMe.

What is Jon Ursenbach's phone number?

AeroLeads has found 4 phone signal(s) with area code 415, 212, 206 for Jon Ursenbach at ReadMe.

Where is Jon Ursenbach based?

Jon Ursenbach is based in San Francisco, California, United States while working with ReadMe.

What companies has Jon Ursenbach worked for?

Jon Ursenbach has worked for Readme, Vimeo, Zillow, Aol, and Gdgt.

How can I contact Jon Ursenbach?

You can use AeroLeads to view verified contact signals for Jon Ursenbach at ReadMe, including work email, phone, and LinkedIn data when available.

What skills is Jon Ursenbach known for?

Jon Ursenbach is listed with skills including Memcached, Git, Jquery, Css, Javascript, Lamp, Subversion, and Xml.

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