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Daniel Flax Email & Phone Number

Senior Software Engineer at Facebook
Location: New York, New York, United States 13 work roles 2 schools
1 work email found @fb.com LinkedIn matched
✓ Verified Jun 2026 4 data sources Profile completeness 86%

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Work email d****@fb.com
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Current company
Role
Senior Software Engineer
Location
New York, New York, United States

Who is Daniel Flax? Overview

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Quick answer

Daniel Flax is listed as Senior Software Engineer at Facebook, based in New York, New York, United States. AeroLeads shows a work email signal at fb.com and a matched LinkedIn profile for Daniel Flax.

Daniel Flax previously worked as Software Engineer at Facebook and Junior Software Engineer at Facebook. Daniel Flax holds Bachelor'S Degree, Computer Science Engineering from The Ohio State University.

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Email format at Facebook

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{first}{last}@fb.com
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Profile bio

About Daniel Flax

I’ve been working with software for the past 15 years. I started programming when I was very young, and since then I’ve worked on projects spanning the gamut. I’ve built web apps, mobile apps, backend systems, databases, computer-vision analysis tools, mobile games, desktop games, augmented reality apps, graphic and effects engines, data delivery infrastructure, UI infrastructure, and more.Along the way I've gotten to make critical decisions that reflected my values. I chose to investigate areas of code critical to user privacy that other engineers shied away from. I surfaced difficult issues and followed-through with fixes to them. I spent careful time to make sure any product that I touched (e.g. Face Effects) was inclusive to all, setting up safeguards to actively catch and fix bias against groups underrepresented in tech. I've actively encouraged workplace conversations around work/life balance, taking breaks when needed, project planning, and long-term career aspirations. And I've fought hard to give my interns and mentees the chances they deserve, even under difficult circumstances.Happy to chat with anyone looking to learn more about the software industry! Feel free to reach out directly!

Current workplace

Daniel Flax's current company

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Facebook
Facebook
Senior Software Engineer
AeroLeads page
13 roles

Daniel Flax work experience

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

Senior Software Engineer

Current
  • Presently leading performance and reliability instrumentation development for a 3-team effort to modernize Feed Delivery Infrastructure.Also providing team leadership to fill gaps as-needed, examples including:Helped.
  • Built out a team mission and 2+ year strategy for the Feed Platform Team
  • Developed a culture of cross-platform architecture review by starting a "Feature Review" process that shaped our collaboration model with other teams at Facebook
  • Developed new processes for the team to load-balance work and build features more quicklyBuilt a team-wide program for providing career and technical mentorship to help grow engineers:
  • Helped 3 new teammates plan out 6-month projects aligned with their career goals
  • Helped 2 senior teammates work with mentees to address their career goals
Feb 2021 - Present

Software Engineer

  • Developed the first AR Face Effects platform for News Feed, built across 5 tech stacks:
  • Led a 6+ person team spanning ML Eng, Product Eng, Product Manager, Designers, Data Scientists
  • Launched 2 cutting-edge AR Face Effects within Facebook App
  • Built new infrastructure into C++ AR Game and Effects Engine to support arbitrary ML models
  • Drove procedures for analyzing memory consumption and performance of graphics and ML models
  • Built and piloted new procedures for analyzing racial / sex-based bias in ML modelsCompleted a 3+ year effort to modernize Feed’s UI Infrastructure:
Jul 2019 - Feb 2021

Junior Software Engineer

Built performance testing framework for Feed UI, which caught and attributed major performance bugs before they hit productionIdentified 2 separate, undiscovered privacy risks, raised awareness, and fixed themManaged and mentored 3 interns from underrepresented groups in tech through the Facebook University program

Aug 2018 - Jul 2019

Research Assistant

Columbus, Ohio, US

Worked on the Interactive Data Systems Team run by Professor Arnab Nandi. Wrote GestureDB, a React-Native iPad app for interactive MySQL database querying using touch gestures. Helped support research to discover novel ways to interact with large sets of data.

Aug 2015 - Aug 2018

Software Engineering Intern

Worked 40 hours a week as an iOS Developer for the Messenger Media team.Developed features that help improve user experience for interacting with media, and that set the basis for the future of the Messenger platform.

May 2016 - Aug 2016

Lead Technical Mentor And Cofounder

Dcxp

DCXP was a 4-week non-profit program designed to bring together talented students and give each of them the opportunity to develop a strong software portfolio, create new projects with expert engineers, and make new connections in the startup industry. As the lead technical mentor, I assisted with project development and gave workshops on various technical.

May 2015 - Sep 2015

Software Engineering Intern

Washington, District Of Columbia, US

Worked with Salesforce, PHP, and AngularJS to help push updates to large-scale applications for clients. Development was done on an Agile development team using git, bitbucket, and Atlassian Cloud for project management.

May 2015 - Jul 2015

Web Developer

Columbus, Ohio, US

Development position for the Office Of Research. Made modifications and updates to Model View Controller designed web applications using JQuery, CSS, PHP, and MySQL. Tested applications on multiple platforms and web browsers. Helped design code to prevent XSS attacks.

Sep 2014 - Nov 2014

Sales Associate

Assisted customers, answered various questions about Apple products (both in person and over the phone), entered purchases and customer information into the invoice system, and performed various other tasks around the store.

Jun 2014 - Aug 2014

Academic Tutor

Great Neck, New York, US

Met weekly with students to assist with a variety of high school subjects, especially math and Spanish.

Feb 2014 - Aug 2014

Cto And Lead Developer

Quisper

Served as the CTO for a social gaming mobile app startup:- Wrote Objective-C frontend, including custom core-graphics animations, a customizable UI library, and a mobile network stack for interfacing with the backend- Designed RESTful backend API and content management webapp - Guided 2 other engineers to support development of the backend, educating.

May 2013 - Aug 2014

Private Contractor

Flax Apps
  • From 7th grade through 12th, I developed software (mainly iPhone Apps) as both a private subcontractor for various organizations and for my own uses. FlaxApps, although not an incorporated organization, is the title.
  • 2013 – Spent a summer working for Corbin Creative Databases - Helped make modifications to an iPhone App for designed to assist with babysitting and scheduling. Fixed minor issues and made major improvements to a.
  • 2011 - Designed, wrote, and placed on the iTunes store various workout applications such as Stuck In Your Seat and Royal Bum for an organization named Picot Pilates
  • 2010 - Helped develop applications such as iLineUp and TiltTimer for Caruso, Inc
  • 2010 - Wrote my own personal iPhone game, now available on the iTunes store, entitled Zap Ball
Jan 2010 - Aug 2014

Checker And Courtesy Clerk

Safeway

Worked the entire summer and into the start of the school year. Started as a “Courtesy Clerk” collecting carts from the parking lot and helping customers carry bags to their cars. Later began running checkout lines and bagging groceries.

Jun 2012 - Aug 2012
2 education records

Daniel Flax education

Bachelor'S Degree, Computer Science Engineering

The Ohio State University

International Baccalaureate Diploma

Richard Montgomery High School
FAQ

Frequently asked questions about Daniel Flax

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

What company does Daniel Flax work for?

Daniel Flax works for Facebook.

What is Daniel Flax's role at Facebook?

Daniel Flax is listed as Senior Software Engineer at Facebook.

What is Daniel Flax's email address?

AeroLeads has found 1 work email signal at @fb.com for Daniel Flax at Facebook.

Where is Daniel Flax based?

Daniel Flax is based in New York, New York, United States while working with Facebook.

What companies has Daniel Flax worked for?

Daniel Flax has worked for Facebook, The Ohio State University, Dcxp, The Advisory Board Company, and Absolute Mac.

How can I contact Daniel Flax?

You can use AeroLeads to view verified contact signals for Daniel Flax at Facebook, including work email, phone, and LinkedIn data when available.

What schools did Daniel Flax attend?

Daniel Flax holds Bachelor'S Degree, Computer Science Engineering from The Ohio State University.

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