Jefrey (Jef) Leary
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Jefrey (Jef) Leary Email & Phone Number

High school Spanish and AVID teacher and former adjunct instructor helping to make a difference in education. at District 300 Schools
Location: Greater Chicago Area, United States, United States 16 work roles 6 schools
2 work emails found @d300.org 1 phone found area 847 LinkedIn matched
✓ Verified May 2026 4 data sources Profile completeness 100%

Contact Signals · 2 work emails · 1 phone

Work email j****@d300.org
Direct phone (847) ***-****
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Current company
Role
High school Spanish and AVID teacher and former adjunct instructor helping to make a difference in education.
Location
Greater Chicago Area, United States, United States
Company size

Who is Jefrey (Jef) Leary? Overview

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Quick answer

Jefrey (Jef) Leary is listed as High school Spanish and AVID teacher and former adjunct instructor helping to make a difference in education. at District 300 Schools, a company with 656 employees, based in Greater Chicago Area, United States, United States. AeroLeads shows a work email signal at d300.org, phone signal with area code 847, and a matched LinkedIn profile for Jefrey (Jef) Leary.

Jefrey (Jef) Leary previously worked as High School Spanish Teacher at District 300 Schools and Student Teacher at Rolling Meadows High School. Jefrey (Jef) Leary holds Master Of Education - Med, Curriculum And Instruction from American College Of Education.

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Email format at District 300 Schools

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{first_initial}{last}@d300.org
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AeroLeads found 2 current-domain work email signals for Jefrey (Jef) Leary. Compare company email patterns before reaching out.

Profile bio

About Jefrey (Jef) Leary

Licensed high school Spanish teacher with experience instructing native and non-native speakers at both high school and community college levels. Experience living, working, and traveling abroad. IL License (Spanish, K-12) PEL 2412988 - issued 07/02/2018IN License (Spanish, Grades 5-12) PEL 10205993 - issued 05/05/2018

Listed skills include Telecommunications, Wireless, Product Management, Mobile Devices, and 31 others.

Current workplace

Jefrey (Jef) Leary's current company

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District 300 Schools
District 300 Schools
High school Spanish and AVID teacher and former adjunct instructor helping to make a difference in education.
united states
Website
Employees
656
AeroLeads page
16 roles · 29 years

Jefrey (Jef) Leary work experience

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

High School Spanish Teacher

Current

Carpentersville, IL

  • Spanish teacher at Dundee-Crown High School for Spanish 1 - 3, Spanish for Spanish Speakers 2, and AP Spanish Literature.Junior AVID teacherProfessional Development:
  • College Board Advanced Placement Institute - Spanish Literature and Culture 2018 (College of William and Mary)
  • College Board Advanced Placement Institute - Spanish Literature and Culture 2019 (Rice University)
  • Quantum Learning
Aug 2018 - Present

Student Teacher

Rolling Meadows High School

Rolling Meadows

  • Support and facilitate lessons in Spanish for Native Speakers 2 (2 blocks) and Spanish 2 (2 blocks)
  • AVID (Advancement Via Individual Determination) Certified Tutor
Jan 2018 - Mar 2018

National Admissions Advisor

Schaumburg, IL

  • Help connect students to programs that may be a good fit for their educational goals.
  • Assist students with the enrollment and financial aid process
  • Adhere to all compliances scripts and exceed metric expectations
Jan 2017 - Aug 2017

Software Testing Specialist - Power

Crystal Lake, IL

  • Execute manual and automated test suites to measure and analyze power consumption (mAh) for BlackBerry and global competitor devices (Apple, Samsung, Motorola, and Huawei)
  • Document and communicate test results, measurement trends and defects
  • Provide ad hoc testing and investigation support for battery impacting issues
  • Tools utilized: JIRA, Python, Integrity MKS
Oct 2012 - Nov 2015

Software Testing Specialist - Performance

Rolling Meadows, IL

  • Resource coordination and assignment to meet customer priorities
  • Serve as local lead for group of 4 testers
  • UI launch and battery performance measurement and analysis for BlackBerry and competitor portfolio
Aug 2011 - Oct 2012

Software Testing Specialist - Handheld

Rolling Meadows, IL

  • Data analysis and trending of customer issues to identify opportunities to decrease software defects and testing gaps
  • Localization testing and verification
  • Experience with full cycle of application testing (ad-hoc, smoke, regression, release)
  • Stability testing for customer technical acceptance (400 & 800hr runs, 24x7)
  • Test design development
Oct 2008 - Aug 2011

Technical Product Manager

Rolling Meadows, IL

  • Managed technical relationship with key portal partners such as Google, Yahoo! and Microsoft
  • Internal technical liaison to Strategic Alliances for partner and portal contracts
  • Served as cross-platform point of escalation for partner issues
  • Product introduction of eBay and Ticketmaster applications for BlackBerry
Nov 2007 - Oct 2008

Product Manager

Rolling Meadows, IL

  • Product ideation, design and life cycle management
  • Feature management
  • Translate customer requirements into MRD and PRD for internal development teams
  • Establish and manage roadmap for core (off-the-shelf) and customer products
  • Global sales support
  • Presentation and marketing material development
Apr 2006 - Nov 2007

Adjunct Instructor - Spanish

  • Spanish 101-201
  • Spanish for Heritage (native) Speakers (Curriculum Development)
  • Blended class development combining traditional classroom with technology
  • Cumulative student evaluation rating >99%
Jan 2003 - May 2006

Regional Manager

  • Project manage cost savings initiatives for 15 state Midwest region resulting in $50M+ in OPEX cost savings
  • Manage team of 15 Facilities Engineers responsible for network design and project management of cell site, MSC and PSTN connectivity
  • Manage team of 13 Design Engineers responsible for building and maintaining circuit and equipment inventory database (Granite)
  • Forecast and manage $500M OPEX budget. Audit and trend variances.
  • Midwest region liaison to Supply Chain Management for volume discount agreements for bandwidth and wholesale voice services
  • E-911 Phase 0-2 compliance
May 2003 - Apr 2006

Adjunct Instructor - Spanish

Glen Ellyn, IL

  • Spanish 101-203
  • Spanish for Native Speakers (SPA215)
  • Curriculum development for semester change (from quarters) for Spanish 101-102 and Spanish 215
Aug 2003 - Dec 2005

Regional Manager - Network Design

  • iPCS acquired by AirGatePCS
  • Responsibilities expanded to manage Atlanta based team responsible E-911 compliance and cell site and MSC interconnection for GA, SC and NC.
  • NPA-NXX Administration
Dec 2001 - Apr 2002

Regional Manager - Network Design

  • formerly known as IllinoisPCS; acquired by AirGatePCS in December 2001
  • SprintPCS affiliate
  • Responsible for ground up CDMA network design and implementation including PSTN interconnection, cell site hubbing and microwave hauls
  • Built and managed regional team of Facilities Engineers and Facilities Coordinators
  • Negotiate and manage all facilities contracts and vendors
May 2000 - Dec 2001

Assistant Director

  • formerly GTE Wireless; part of acquisition from Ameritech-SBC merger
  • Reported into Government Affairs
  • Responsible for interconnection agreement negotiations and compliance (Sections 251/252 of the 1996 Telecom Act).
  • Vendor Management
1999 - Apr 2000

Assistant Director - Network Strategies & Contracts

  • Develop and recommend strategy for network technology and vendors
  • Negotiate and implement all LEC interconnection agreements pursuant to Sections 251/252 of the 1996 Telecom Act
1997 - 1999 ~2 yrs

Facilities Engineer

  • Facilitated cross-functional network optimization task force; $20M saved
  • Designed and procured all interconnect needs to cell sites, MSC and Public Switched Telephone Network (PSTN)
  • Traffic engineered PSTN and adjunct systems (PrePaid Service)
  • NPA-NXX administration
  • Negotiated contracts for bandwidth and voice services
  • E-911 Phase 0 and Phase 1 compliance
Jun 1995 - Aug 1997
Team & coworkers

Colleagues at District 300 Schools

Other employees you can reach at d300.org. View company contacts for 656 employees →

6 education records

Jefrey (Jef) Leary education

Masters Of Arts In Secondary Teaching

Activities and Societies: Kappa Delta Pi - education honor societyGraduated 03/25/2018 IN licensure granted 05/2018

Telecommunications

Devry Institute Of Technology

Classwork includes Intro to Telecommunications, Voice Communications and Data Communications

Ba, Spanish, Business

Activities and Societies: Phi Beta Kappa, Quartet (Viola), Lock & Chain Honorary Society, Sigma Delta PiTeaching Assistant: Quantitative.

Education record

Glenbard North High School
FAQ

Frequently asked questions about Jefrey (Jef) Leary

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

What company does Jefrey (Jef) Leary work for?

Jefrey (Jef) Leary works for District 300 Schools.

What is Jefrey (Jef) Leary's role at District 300 Schools?

Jefrey (Jef) Leary is listed as High school Spanish and AVID teacher and former adjunct instructor helping to make a difference in education. at District 300 Schools.

What is Jefrey (Jef) Leary's email address?

AeroLeads has found 2 work email signals at @d300.org for Jefrey (Jef) Leary at District 300 Schools.

What is Jefrey (Jef) Leary's phone number?

AeroLeads has found 1 phone signal(s) with area code 847 for Jefrey (Jef) Leary at District 300 Schools.

Where is Jefrey (Jef) Leary based?

Jefrey (Jef) Leary is based in Greater Chicago Area, United States, United States while working with District 300 Schools.

What companies has Jefrey (Jef) Leary worked for?

Jefrey (Jef) Leary has worked for District 300 Schools, Rolling Meadows High School, Colorado Technical University, Blackberry, and Research In Motion.

Who are Jefrey (Jef) Leary's colleagues at District 300 Schools?

Jefrey (Jef) Leary's colleagues at District 300 Schools include Andrea Hernandez, Kelly Carey, Gail Farr, Dori Petersen, and Pope Nicholas.

How can I contact Jefrey (Jef) Leary?

You can use AeroLeads to view verified contact signals for Jefrey (Jef) Leary at District 300 Schools, including work email, phone, and LinkedIn data when available.

What schools did Jefrey (Jef) Leary attend?

Jefrey (Jef) Leary holds Master Of Education - Med, Curriculum And Instruction from American College Of Education.

What skills is Jefrey (Jef) Leary known for?

Jefrey (Jef) Leary is listed with skills including Telecommunications, Wireless, Product Management, Mobile Devices, Vendor Management, Testing, Cross Functional Team Leadership, and Management.

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