John Jankowski
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John Jankowski Email & Phone Number

Director, Global AR and Credit Operations at Syniverse at Syniverse
Location: Matthews, North Carolina, United States 12 work roles 1 school
1 work email found @syniverse.com 1 phone found area 813 LinkedIn matched
✓ Verified May 2026 4 data sources Profile completeness 100%

Contact Signals · 1 work email · 1 phone

Work email j****@syniverse.com
Direct phone (813) ***-****
LinkedIn Profile matched
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Current company
Syniverse
Role
Director, Global AR and Credit Operations at Syniverse
Location
Matthews, North Carolina, United States
Company size
2019 employees

Who is John Jankowski? Overview

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Quick answer

John Jankowski is listed as Director, Global AR and Credit Operations at Syniverse at Syniverse, a company with 2019 employees, based in Matthews, North Carolina, United States. AeroLeads shows a work email signal at syniverse.com, phone signal with area code 813, and a matched LinkedIn profile for John Jankowski.

John Jankowski previously worked as Director, Global AR & Credit Operations at Syniverse at Syniverse and Senior Manager - Global Accounts Receivable at Syniverse. John Jankowski holds Bachelor Of Arts, Accounting from Michigan State University.

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

About John Jankowski

Highly experienced billing, AR/credit & collections, project management, client services & accounting professional. Highly energetic with a proven ability to lead global teams, influence change, drive improvements, project manage complex assignments, and deliver results across the organization. A self-motivated individual who is always challenging current practices and thinking out-of-the-box. Excellent communication and interpersonal skills, with the ability to establish effective relationships across all levels of the organization.Professional Accomplishments• Implemented SAP FSCM which harmonized collection processes globally, and lead to DSO improvement of 8 days (from 78 to 70 days) and $25 million of additional FCF annually.• Took over credit risk analysis, and transformed the process by instituting a standardized credit review via financial statement ratio analysis. Mitigated credit risk via shortened payment terms, bank guarantees, letters of credit, and security deposits to name a few. Initiated and implemented numerous enhancements within the Appian Order-to-Cash system to ensure proper checks and balances regarding credit reviews.• Collaborated with both Sales and Customer Service by conducting face-to-face customer visits. The relationship building improved satisfaction scores from 7.3 to 8.1, as well as cash flow. AR delinquency at one point was at zero (0) for the customers visited; which represented over 60% of Switch and Data’s revenue. Process improvements included first invoice reviews, invoice format and content changes, and online availability of documents required to speed up invoice approval and payments.• Implemented a Siebel CRM billing integration which eliminated manual billing processes and resulted in operational savings of $120K/year. • Project managed the Accounts Receivable integration of both the MACH and AICENT acquisitions. This included taking over responsibility of the AR team in Bangalore, India, and Beijing, China. MACH was a global provider of data clearing and financial settlement service for telecom companies, and Aicent was the world’s largest multi-service IPX provider of data network services. • Automated Syniverse’s Accounts Receivable monthly executive reporting; saving eight (8) hours of work. Additionally, created alternative AR Reports for Sales and Operations, by region, by customer type, by product, and line of business. These alternative reports helped to identify key areas of focus and prioritization to improve cash flow.

Listed skills include Telecommunications, Management, Accounting, Vendor Management, and 43 others.

Current workplace

John Jankowski's current company

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Syniverse
Syniverse
Director, Global AR and Credit Operations at Syniverse
Matthews, NC, US
Website
syniverse.com
Employees
2019
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12 roles · 15 years

John Jankowski work experience

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

Director, Global Ar And Credit Operations At Syniverse

Syniverse

Matthews, NC, US

Director, Global Ar & Credit Operations At Syniverse

Current
Syniverse

Tampa, Florida, US

The world’s most connected company, providing a secure, global network, that reaches millions of people. Its focus is on 5G, IOT, SMS, and cybersecurity to name a few. Syniverse is a privately held company with 2,300 employees and annual revenues of $780M.□ Manage a team of 11 employees spread across three continents, supporting collections for 2,000.

Oct 2017 - Present

Senior Manager - Global Accounts Receivable

Syniverse

Tampa, Florida, US

Nov 2013 - Oct 2017

Ar Manager

Syniverse

Tampa, Florida, US

Nov 2012 - Nov 2013

Manager Of Billing, Credit & Collections

Quala

Tampa, Florida, US

A transportation cleaning and maintenance company, focused on tank, tote, and IBC cleaning and reconditioning. Qualawash is a privately held company, with over 75 locations across North America, and annual revenues of $130M.□ Reduced DSO by over 10 days, and 60+ days outstanding receivables as a percentage of total receivables by 7% (12% to 5%) within the.

Jan 2012 - Nov 2012

Revenue Cycle Manager

Laser Spine Institute

The leader in minimally invasive spine surgery for chronic neck or back conditions such as herniated/ bulging discs, pinched nerves and spinal arthritis. LSI is a privately held company with approximately 500 employees.□ After six (6) weeks of hire, took on management of the Appeals team. This created ownership of the entire Patient Financial Services team.

2011 - 2011

Director Of Credit, Billing & Collections

Switch And Data

Tampa, Florida, US

A provider of network-neutral data centers and internet exchange services. Services included colocation, network connectivity and peering from 34 data centers in North America. At the time, Switch and Data was a public company with annual revenues of $172M when they were acquired by Equinix in 2010.□ Promoted to Director after being with the company for.

Jan 2001 - Sep 2010

Manager, Billing Control

Aerial Communications, Inc.

A regional network operator in the United States before being acquired by VoiceStream Wireless in 2000. It provided digital wireless personal communication services (PCS) and had an employee base of 2,000. Managed a team of two (2) Supervisors and sixteen (16) staff.  Designed, developed, and implemented all original billing policy and procedures. These.

Aug 1998 - Jul 2000

Billing Control, Team Manager

Aerial Communications, Inc.
Jul 1997 - Aug 1998

Billing Control, Billing Analyst

Aerial Communications, Inc.
Sep 1996 - Jul 1997

Revenue Assurance, Market Analyst

Us Cellular

Chicago, Illinois, US

A regional carrier which owns and operates the fifth-largest wireless telecommunications network in the United States, serving 5M customers in 426 markets. USCC has revenues of $4B, and an employee base of 10,300. Designed, developed and conducted a Supervisor Training Program for cellular market personnel. Recovered $80K in lost revenues through market.

Mar 1995 - Sep 1996

Staff Accountant

Evans, Marshall, And Pease, P.C.

A small public accounting and business consulting corporation, with a focus on audits for local governments and not-for-profit organizations, as well as the preparation of tax returns for all types of businesses and individuals. Forecasted cash flow, budgeted capital expenditures, and audited reports for Municipalities, School Districts, Bank, and.

Oct 1993 - Mar 1995
Team & coworkers

Colleagues at Syniverse

Other employees you can reach at syniverse.com. View company contacts for 2019 employees →

KA Kara Avery-Wagner Kara Avery-Wagner Colleague at Syniverse United States, United States View → AK Abdul Kamara Abdul Kamara Colleague at Syniverse Greater London, England, United Kingdom, United Kingdom View → AB Adam Brownlee Adam Brownlee Colleague at Syniverse London, England, United Kingdom, United Kingdom View → BP Bryan Peterson Bryan Peterson Colleague at Syniverse Riverview, Florida, United States, United States View → MP Maria Padilla Maria Padilla Colleague at Syniverse Tampa, Florida, United States, United States View → DV Diego Venegas Diego Venegas Colleague at Syniverse Costa Rica, Costa Rica View → SV Suresh Velayudhan Suresh Velayudhan Colleague at Syniverse Bengaluru, Karnataka, India, India View → SK Surender Kumar Surender Kumar Colleague at Syniverse Jaipur, Rajasthan, India, India View → AC Abdul Carvajal Abdul Carvajal Colleague at Syniverse San Jose, Costa Rica, Costa Rica View → RL Reiner Lindner Reiner Lindner Colleague at Syniverse Frankfurt Rhine-Main Metropolitan Area, Germany View →
1 education record

John Jankowski education

  • Michigan State University
    Michigan State University
    Accounting
FAQ

Frequently asked questions about John Jankowski

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

What company does John Jankowski work for?

John Jankowski works for Syniverse.

What is John Jankowski's role at Syniverse?

John Jankowski is listed as Director, Global AR and Credit Operations at Syniverse at Syniverse.

What is John Jankowski's email address?

AeroLeads has found 1 work email signal at @syniverse.com for John Jankowski at Syniverse.

What is John Jankowski's phone number?

AeroLeads has found 1 phone signal(s) with area code 813 for John Jankowski at Syniverse.

Where is John Jankowski based?

John Jankowski is based in Matthews, North Carolina, United States while working with Syniverse.

What companies has John Jankowski worked for?

John Jankowski has worked for Syniverse, Quala, Laser Spine Institute, Switch And Data, and Aerial Communications, Inc..

Who are John Jankowski's colleagues at Syniverse?

John Jankowski's colleagues at Syniverse include Kara Avery-Wagner, Abdul Kamara, Adam Brownlee, Bryan Peterson, and Maria Padilla.

How can I contact John Jankowski?

You can use AeroLeads to view verified contact signals for John Jankowski at Syniverse, including work email, phone, and LinkedIn data when available.

What schools did John Jankowski attend?

John Jankowski holds Bachelor Of Arts, Accounting from Michigan State University.

What skills is John Jankowski known for?

John Jankowski is listed with skills including Telecommunications, Management, Accounting, Vendor Management, Leadership, Accounts Receivable, Analysis, and Team Leadership.

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