Team Lead And Staff Software Engineer
CurrentLeading a team and building first in class web app for the Group Travel, powering EF Ultimate Break, EF Go Ahead Tours, and EF Adventures.
Jan 2024 - Present
AeroLeads people directory · profile
Matthew Haag Email & Phone Number
Principal Grey Beard and Radical Full Stack Engineering Generalist - Travel, Growth, Data, Mobile, Loyalty, Incentives, Fraud
at
EF World Journeys
1 work email found
@hopper.com
3 phones found area 617 and 514
LinkedIn matched
✓ Verified May 2026
4 data sources
Profile completeness 100%
Current company
Role
Principal Grey Beard and Radical Full Stack Engineering Generalist - Travel, Growth, Data, Mobile, Loyalty, Incentives, Fraud
Location
Greater Boston, United States, United States
Who is Matthew Haag? Overview
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Quick answer
Matthew Haag is listed as Principal Grey Beard and Radical Full Stack Engineering Generalist - Travel, Growth, Data, Mobile, Loyalty, Incentives, Fraud at EF World Journeys, based in Greater Boston, United States, United States. AeroLeads shows a work email signal at hopper.com, phone signal with area code 617, 514, and a matched LinkedIn profile for Matthew Haag.
Matthew Haag previously worked as Team Lead and Staff Software Engineer at Ef World Journeys and Owner at 596 Housing. Matthew Haag holds Bs, Computer Science from Worcester Polytechnic Institute.
Company email context
Email format at EF World Journeys
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{first_initial}{last}@hopper.com
86% confidence
AeroLeads found 1 current-domain work email signal for Matthew Haag. Compare company email patterns before reaching out.
Profile bio
About Matthew Haag
Principal Software Engineer with experience in Back End, Data Infrastructure, Mobile Native and Mobile Web.Leading engineering efforts to build and protect Rewards, Discounts, and Cashback.
Listed skills include Mobile Applications, Javascript, Android, Blackberry, and 17 others.
Current workplace
Matthew Haag's current company
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9 roles · 14 years
Matthew Haag work experience
A career timeline built from the work history available for this profile.
Owner
Current
596 Housing
Own and Manage multiple short and long term rental units across New England.
2012 - Present
~14 yrs 4 mos
Principal Engineer - Growth Incentives, Wallet, And Fraud.
Stood up and led Incentives Fraud / User Trust team. Using mixtures of simple rules and machine learning to identify and stop abuse of referrals, incentives, and cash back.Lead development on cross vertical User Trust platform to additionally prevent excess account creation and automated API abuse.Interfaced with the Credit Card Fraud and Abuse team and.
Nov 2022 - Oct 2023
Senior Software Engineer- Full Stack - Growth, Incentives, And Loyalty
Lead the creation of Carrot Cash and the ability to offer incentives, cashback and discounts on travel products across the Hopper Ecosystem.Created the ability to issue money to users, both as coupons and as stored value.Transitions both Scala and Python infrastructure from On Prem with HBase and Kafka to Cloud (GCP) with Cloud SQL, Big Table, and.
Aug 2019 - Oct 2022
Senior Software Engineer - Full Stack - Growth And R&D
Worked Directly with the Chief Data Scientist and the Director of Marketing to build and productionize new projects.Productionized and Deployed tracking event and analytics pipelines as well as ability for semi technical users to manipulate event flows.Built ETL tooling to automatically find best prices, generate content and create and post advertisements.
Jan 2017 - Aug 2019
Senior Software Engineer - Full Stack - Mobile And Android
Founding Android Team Engineer. Delivered fully developed Air Travel Prediction and Booking App.Modified back end API resources to meet Android specific needs.Developed Google Play Award winning Android App.
Jan 2015 - Jan 2017
Senior Software Engineer - Full Stack - Web
Launched Hopper.com Travel Planning and Social Networking website.Integrated Flight Pricing and Trip Planning.Build Automatic and Manual Flight Deal Generation systems and tie them to external Social Networks.Handled end to end deferred deep linking for app downloads.
Oct 2012 - Jan 2015
Senior Mobile Software Engineer
Company formerly known as Pyxis MobileExtensive work in mobile application development to build the Verivo Software Mobile Application Platform for the Mobile Web and the BlackBerry Smartphone.BlackBerry Java J2MEJavaScript / HTML5 / Mobile WebC# Windows Forms
Nov 2007 - Oct 2012
Engineer
Technology Systems Incorporated
Worked on a variety of stage 1 and 2 SBIR and STTR funded research for the DOD and NSF revolving around Autonomous Underwater Vehicles, Ad-Hoc Wireless Networking, and Mission Planning. Utilized a mixture of C/C++/C# with MFC and WinForms, along with ArcGIS for both Windows XP and Embedded Linux.
Aug 2004 - Oct 2007
2 education records
Matthew Haag education
Bs, Computer Science
Worcester Polytechnic Institute
Education record
Maine School Of Science And Math
FAQ
Frequently asked questions about Matthew Haag
Quick answers generated from the profile data available on this page.
What company does Matthew Haag work for?
Matthew Haag works for EF World Journeys.
What is Matthew Haag's role at EF World Journeys?
Matthew Haag is listed as Principal Grey Beard and Radical Full Stack Engineering Generalist - Travel, Growth, Data, Mobile, Loyalty, Incentives, Fraud at EF World Journeys.
What is Matthew Haag's email address?
AeroLeads has found 1 work email signal at @hopper.com for Matthew Haag at EF World Journeys.
What is Matthew Haag's phone number?
AeroLeads has found 3 phone signal(s) with area code 617, 514 for Matthew Haag at EF World Journeys.
Where is Matthew Haag based?
Matthew Haag is based in Greater Boston, United States, United States while working with EF World Journeys.
What companies has Matthew Haag worked for?
Matthew Haag has worked for Ef World Journeys, 596 Housing, Hopper, Verivo Software, and Technology Systems Incorporated.
How can I contact Matthew Haag?
You can use AeroLeads to view verified contact signals for Matthew Haag at EF World Journeys, including work email, phone, and LinkedIn data when available.
What schools did Matthew Haag attend?
Matthew Haag holds Bs, Computer Science from Worcester Polytechnic Institute.
What skills is Matthew Haag known for?
Matthew Haag is listed with skills including Mobile Applications, Javascript, Android, Blackberry, Java, Html 5, C#, and Mobile Devices.
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