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Joel Feinstein Email & Phone Number

Software Engineering Lead at Citadel at Citadel
Location: New York, United States 12 work roles 2 schools
1 work email found @citadel.com 7 phones found area 858, 515, and 650 LinkedIn matched
✓ Verified July 2026 4 data sources Profile completeness 100%

Contact Signals · 1 work email · 7 phones

Work email j****@citadel.com
Direct phone (858) ***-****
LinkedIn Profile matched
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Current company
Role
Software Engineering Lead at Citadel
Location
New York, United States

Who is Joel Feinstein? Overview

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Quick answer

Joel Feinstein is listed as Software Engineering Lead at Citadel at Citadel, based in New York, United States. AeroLeads shows a work email signal at citadel.com, phone signal with area code 858, 515, 650, and a matched LinkedIn profile for Joel Feinstein.

Joel Feinstein previously worked as Software Engineer at Citadel and Principal Software Engineer at Loanstreet Inc.. Joel Feinstein holds Master Of Science (M.S.), Computer Engineering from Carnegie Mellon University.

Company email context

Email format at Citadel

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{first}.{last}@citadel.com
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AeroLeads found 1 current-domain work email signal for Joel Feinstein. Compare company email patterns before reaching out.

Profile bio

About Joel Feinstein

Full-stack software engineer.

Listed skills include Embedded Systems, C, Java, Python, and 47 others.

Current workplace

Joel Feinstein's current company

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Citadel
Citadel
Software Engineering Lead at Citadel
AeroLeads page
12 roles

Joel Feinstein work experience

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

Software Engineer

Current

Miami, Florida, Us

Financey things

Apr 2021 - Present

Principal Software Engineer

New York, New York, Us

* Migrated legacy Python applications to Kotlin resulting in exponentially higher capacity with a fraction of the resources* Developed API for loan servicing and reporting* Productized analytics platform

Oct 2019 - Apr 2021

Senior Software Engineer

Seattle, Wa, Us

Productize and deploy machine learning algorithms designed to optimize supply chains and operations networks.* Strong usage of AWS tools including Lambda, Step Functions, ECS, Redshift, Aurora, Glue, DynamoDB, S3* Rock-solid platform featuring continuous integration and deployment, tested for stability and accuracy* Leverages huge data sets, with multi-terabyte query results

Jan 2019 - Oct 2019

Lead Software Engineer

Palo Alto, Ca, Us

An early employee at a successful startup, I led and managed the UI engineering team, responsible for all user interactions on and off the platform. Nyansa was acquired by VMware in January 2020.• Developed the Voyance UI using common web technologies, including Angular and d3• Built REST and GraphQL APIs using Rails, spray-can, and MongoDB• Implemented proprietary algorithms for a real-time user experience using Elasticsearch and Spark• Maintained dev-ops and developer QoL tools• Responsible for company security posture

Jan 2015 - Jan 2019

Technical Staff

San Jose, Ca, Us

• Designed and implemented browser-based UI for routing and security appliance.• Contributed to the frontend, backend, and database portions of a monolithic web application built on Ruby On Rails, providing cloud services to distributed devices.• Expanded firmware capabilities by building new software-defined networking components in C++ on a Linux platform.

Aug 2012 - Jan 2015

Software Engineer

San Diego, Ca, Us

• Interfaced directly with customers to implement solutions harnessing Qualcomm technologies• Handled multiple projects simultaneously in groups ranging from 3 to 20 people• Worked daily with dozens of technologies, both Qualcomm proprietary and open source• Built complex features encompassing entire phone stack, including phone hardware, Linux kernel modifications, and Android applications• Experience with 3GPP and 3GPP2 standards

Jun 2011 - Aug 2012

Software Engineering Intern

San Diego, Ca, Us

• Modified cellular base station software running VxWorks• Wrote hardware driver to enable SPI I/O within the base station subsystem• Drafted software to produce settings for synthesizers to allow for non-band-specific BTS• Wrote drivers for next-gen single board computer allowing for 8x speedup• Designed and implemented custom voice activity detector for internal Android app

May 2009 - May 2011

Researcher

Pittsburgh, Pa, Us

I was involved in two research projects at Carnegie Mellon University. The first project was an attempt to increase the performance of mainstream processors by utilizing novel approaches to cooling. I coded a test-bed that enables automatically finds a processor's stable voltage vs. frequency points at a given temperature.The second project involved creating an emulator to mimic a wireless environment for research purposes. I redesigned a component based on the Virtex 6 FPGA, high speed A/D and D/A conversions, and high bandwidth optical data transmission to a central server.

Nov 2010 - May 2011

Teaching Assistant

Pittsburgh, Pa, Us

I was a teaching assistant for a total of five courses at Carnegie Mellon University:18-549: Embedded Systems Design Capstone18-349: Real-Time Embedded Systems15-213: Introduction to Computer Systems18-240: Design of Digital Systems15-123: Introduction to C and UnixThe embedded systems design capstone allows teams of 4 students to create a device or system from the group up. The class teaches design principles, group organization, and allows students to explore the world of electronics.As a teaching assistant for the embedded capstone, I was responsible for mentoring 4 teams (16 students total). This included regular progress report meetings where we went over designs and discussed goals for the project, as well as solved large problems.As a TA for the other courses, I was required to hold regular office hours assisting students with labs and course material, as well as grade labs and tests. Each course had a team of up to 10 other TAs, and up to two professors.

Jan 2009 - May 2011

President

Eta Kappa Nu Honor Society

Eta Kappa Nu is a nationally recognized honor society for electrical and computer engineers, and is a subsidiary of IEEE. The Carnegie Mellon chapter has been in operation since 1923. The top 25% of students in junior, senior, and graduate classes are offered admission.As president of the local chapter, I was responsible for running an 8 person executive board that leads an 80+ member organization. Eta Kappa Nu (HKN) provides valuable services to the ECE department, including weekly snack nights, department tours, and peer mentoring. In addition, HKN regularly holds events with corporations. This year, HKN has seen a 4x increase in corporate sponsorships, and has inducted over 40 new members.

Aug 2010 - May 2011

Engineering Intern

San Jose, Ca, Us

• Designed and programmed Java software solution to manage quality assurance data• Completed solution one month ahead of schedule• Analyzed data for trends and inconsistencies that could lead to product malfunction

Jun 2008 - Aug 2008

It Intern

Us

Responsible for corporate IT of a small startup. Fields of focus included networking and security.

Jun 2007 - Aug 2007
2 education records

Joel Feinstein education

Master Of Science (M.S.), Computer Engineering

Carnegie Mellon University

Bachelor Of Science (B.S.), Double Major - Computer Engineering, Engineering & Public Policy

Carnegie Mellon University
FAQ

Frequently asked questions about Joel Feinstein

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

What company does Joel Feinstein work for?

Joel Feinstein works for Citadel.

What is Joel Feinstein's role at Citadel?

Joel Feinstein is listed as Software Engineering Lead at Citadel at Citadel.

What is Joel Feinstein's email address?

AeroLeads has found 1 work email signal at @citadel.com for Joel Feinstein at Citadel.

What is Joel Feinstein's phone number?

AeroLeads has found 7 phone signal(s) with area code 858, 515, 650 for Joel Feinstein at Citadel.

Where is Joel Feinstein based?

Joel Feinstein is based in New York, United States while working with Citadel.

What companies has Joel Feinstein worked for?

Joel Feinstein has worked for Citadel, Loanstreet Inc., Amazon, Nyansa, Inc, and Cisco Meraki.

How can I contact Joel Feinstein?

You can use AeroLeads to view verified contact signals for Joel Feinstein at Citadel, including work email, phone, and LinkedIn data when available.

What schools did Joel Feinstein attend?

Joel Feinstein holds Master Of Science (M.S.), Computer Engineering from Carnegie Mellon University.

What skills is Joel Feinstein known for?

Joel Feinstein is listed with skills including Embedded Systems, C, Java, Python, Software Engineering, Saxophone, Programming, and Javascript.

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