Jeff Marcus
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Jeff Marcus Email & Phone Number

Senior Staff Data Scientist --Infrastructure at Meta at Meta
Location: Newton Upper Falls, Massachusetts, United States 12 work roles 3 schools
1 work email found @fb.com 4 phones found area 617 and 203 LinkedIn matched
✓ Verified May 2026 4 data sources Profile completeness 100%

Contact Signals · 1 work email · 4 phones

Work email j****@fb.com
Direct phone (617) ***-****
LinkedIn Profile matched
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Current company
Role
Senior Staff Data Scientist --Infrastructure at Meta
Location
Newton Upper Falls, Massachusetts, United States

Who is Jeff Marcus? Overview

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Quick answer

Jeff Marcus is listed as Senior Staff Data Scientist --Infrastructure at Meta at Meta, based in Newton Upper Falls, Massachusetts, United States. AeroLeads shows a work email signal at fb.com, phone signal with area code 617, 203, and a matched LinkedIn profile for Jeff Marcus.

Jeff Marcus previously worked as Senior Staff Data Scientist -- Infrastructure at Meta and Staff Data Scientist - Infrastructure at Meta. Jeff Marcus holds Phd, Electrical Engineering And Computer Science from Massachusetts Institute Of Technology.

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Email format at Meta

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

About Jeff Marcus

I am technical lead for a team of data scientists at Meta. We partner with engineering teams to optimize one of the world's biggest data platforms. We focus on efficiency, capacity modeling, and compute engine optimization. I help define our team's program and guide the execution of several data scientists and work closely with our partners to apply data science and analytical rigor to solve their key problems. . As an engineer, I go beyond "data science" to influence project direction.I use Python, (Presto) SQL, and R on various analytics and tooling projects. I also learned Meta's core product stack of Hack(back end) and React (front end) to build an internal analytics tool. Finally, as a senior member of Meta's Analytics Infra organization, I foster the organization's health: by providing career guidance to other data scientists at various career levels.

Listed skills include Speech Recognition, Machine Learning, Natural Language Processing, Analytics, and 16 others.

Current workplace

Jeff Marcus's current company

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Meta
Meta
Senior Staff Data Scientist --Infrastructure at Meta
AeroLeads page
12 roles · 30 years

Jeff Marcus work experience

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

Senior Staff Data Scientist -- Infrastructure

Current

Menlo Park, CA, US

I am working on tools to improve training data quality for LLM's. Before that I was technical lead for a team of data scientists at Meta. We partnered with engineering teams to optimize one of the world's biggest data platforms. We focused on efficiency, capacity modeling, and compute engine optimization. I helped define our team's program and guide the.

Sep 2021 - Present

Staff Data Scientist - Infrastructure

Menlo Park, CA, US

I’m a data scientist in Facebook’s infrastructure group. I am currently technical lead on various projects related to our Data Infrastructure, especially around efficiency and capacity.

Oct 2017 - Sep 2021

Principal Data Scientist

Stamford, CT, US

Member of KAYAK's data science team.• Delivered models and insights to improve KAYAK's products and increase revenue. • Drove improvements in data quality and processes• Mentor other team members.

May 2016 - Oct 2017

Senior Data Scientist

Stamford, CT, US

Member of Kayak's Analytics and data science team. Work on a variety of problems, including data modeling, business analytics, and machine-learning/data science support for new features in the KAYAK platform

Mar 2015 - May 2016

Senior Data Scientist

Cambridge, Massachusetts, US

Built classifiers of electrical devices based on their signatures using R and Python..

Nov 2013 - Feb 2015

Senior Manager, Advanced Technology Delivery

Burlington, MA, US

  • Managed natural language engineering for first deployment of the Nina virtual assistant.
  • Designed key components of Nuance Call Steering Portal, a tool for developing natural language understanding applications. One patent granted and two pending for this work.
  • Served on the Nuance Patent Committee. Evaluated over 150 invention disclosures.
Sep 2012 - Nov 2013

Manager: Data Science

Burlington, MA, US

Founded Nuance Enterprise division’s data science team. Performed or supervised many analyses of Nuance call logs (using R and SQL). Presented findings throughout division, leading to improved products and applications.

May 2006 - Sep 2011

Designer And Manager, Analysis And Tuning Tools

US

  • Determined requirements, defined information design, wrote user documentation, and managed continuing engineering for Nuance Application Reporting (NAR).
  • Defined logging for Nuance Recognizer, Nuance Dialog Modules, and Nuance Call Steering..
2003 - 2006 ~3 yrs

Speech Scientist

US

Responsible for a wide range of speech recognition engineering activities, including accuracy tuning for partners, dictionary development and development and coding of Nuance's VoiceXML-compliant built-in grammars.

1996 - 2003 ~7 yrs

Manager, Speech Research

CA

Managed speech research team at Nortel.

Aug 1994 - Apr 1996

Speech Scientist

CA

Sep 1992 - Aug 1994
3 education records

Jeff Marcus education

Phd, Electrical Engineering And Computer Science

Massachusetts Institute Of Technology

Masters Of Science, Electrical Engineering And Computer Science

Massachusetts Institute Of Technology

Bachelor Of Science (B.Sc.), Electrical Engineering And Computer Science

Massachusetts Institute Of Technology
FAQ

Frequently asked questions about Jeff Marcus

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

What company does Jeff Marcus work for?

Jeff Marcus works for Meta.

What is Jeff Marcus's role at Meta?

Jeff Marcus is listed as Senior Staff Data Scientist --Infrastructure at Meta at Meta.

What is Jeff Marcus's email address?

AeroLeads has found 1 work email signal at @fb.com for Jeff Marcus at Meta.

What is Jeff Marcus's phone number?

AeroLeads has found 4 phone signal(s) with area code 617, 203 for Jeff Marcus at Meta.

Where is Jeff Marcus based?

Jeff Marcus is based in Newton Upper Falls, Massachusetts, United States while working with Meta.

What companies has Jeff Marcus worked for?

Jeff Marcus has worked for Meta, Kayak, Sense Labs, Inc., Nuance Communications, and Speechworks.

How can I contact Jeff Marcus?

You can use AeroLeads to view verified contact signals for Jeff Marcus at Meta, including work email, phone, and LinkedIn data when available.

What schools did Jeff Marcus attend?

Jeff Marcus holds Phd, Electrical Engineering And Computer Science from Massachusetts Institute Of Technology.

What skills is Jeff Marcus known for?

Jeff Marcus is listed with skills including Speech Recognition, Machine Learning, Natural Language Processing, Analytics, Speech Technology, Python, Software Development, and Product Management.

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