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John Coyne Email & Phone Number

Software Engineer at Discover Financial Services at Discover Financial Services
Location: Wauconda, Illinois, United States 6 work roles 1 school
3 work emails found @discover.com LinkedIn matched
✓ Verified August 2026 4 data sources Profile completeness 100%

Contact Signals · 3 work emails

Work email j****@discover.com
LinkedIn Profile matched
3 free lookups remaining · No credit card
Current company
Discover Financial Services
Role
Software Engineer at Discover Financial Services
Location
Wauconda, Illinois, United States
Company size
21509 employees

Who is John Coyne? Overview

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Quick answer

John Coyne is listed as Software Engineer at Discover Financial Services at Discover Financial Services, a with 21509 employees, based in Wauconda, Illinois, United States. AeroLeads shows a work email signal at discover.com and a matched LinkedIn profile for John Coyne.

John Coyne previously worked as Expert Application Engineer at Discover Financial Services and Principal Software Engineer at Discover Financial Services. John Coyne holds Bachelor Of Science, Computer Science from Illinois State University.

Company email context

Email format at Discover Financial Services

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{first}{last}@discover.com
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AeroLeads found 3 current-domain work email signals for John Coyne. Compare company email patterns before reaching out.

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Profile bio

About John Coyne

Expert: {Java, SQL}, Proficient: {REST, SOAP, Spring Boot, Kubernetes/OpenShift Container Platform, PCF, git, Oracle, HTML, JavaScript, Jenkins, Linux, Bash shell, WAS, Tomcat, Apache HTTP Server}, Competent: {Gradle, Docker, Helm, Node.js, Nginx, RabbitMQ, PostgreSQL, mySQL/MariaDB, Perl, OAuth2/OpenID Connect, OWASP, Splunk, Natural Language Processing}, Advanced beginner: {AWS, GCP, Kafka, Redis, Istio, Chef, Python, Jupyter Notebook}, Novice: {MongoDB, gRPC}

Listed skills include Struts, Java, Jdbc, Websphere Application Server, and 25 others.

Current workplace

John Coyne's current company

Company context helps verify the profile and gives searchers a useful next step.

Discover Financial Services
Discover Financial Services
Software Engineer at Discover Financial Services
Riverwoods, IL
Website
discover.com
Employees
21509
AeroLeads page
Company profile
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6 roles

John Coyne work experience

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

Expert Application Engineer

Current
Discover Financial Services

Riverwoods, Il, Us

Responsible for Architecture and Design of system responsible for routing and authorizing all direct banking customers requests from discover.com Account Center and Mobile application.

Sep 2021 - Present

Principal Software Engineer

Discover Financial Services

Riverwoods, Il, Us

Subject matter expert for authentication in Discover.com Account Center.Act as a technical consultant for all projects on team.Act as a technical lead where assigned to drive critical projects on team.Review project proposals and discuss projects with business partners to provide high level estimates of technical tasks for projects of varying size and levels of complexity.Analyze and recommend new platforms, libraries, tools, etc. to evolve the web application stack to better support current and future website availability, performance, flexibility, and maintenance goals.Write and groom technical User storiesServe as a mentor for other technical team members.- Lead architect in creation of Message based Event Bus which was used to send out Real Time Cardmember Alerts- Lead architect for implementation of CA Siteminder integration into discovercard.com and discoverbank.com for authorization/SSO- Lead architect for launching Discover Card in Apple Pay, Android (Google) Pay, and Samsung Pay- Lead architect for implementation of Virtual Assistant (Chat Bot) in Messaging channels for Discover.com and Discover Mobile App.

Dec 2013 - Sep 2021

Senior Application Developer

Discover Financial Services

Riverwoods, Il, Us

Developer / Technical Lead on Account Center and Mobile teams

Jan 2009 - Nov 2013

Associate Application Developer

Discover Financial Services

Riverwoods, Il, Us

Developer on Merchant Boarding, International Internet, and DiscoverCard Account Center development teams

Jan 2005 - Dec 2008
Team & coworkers

Colleagues at Discover Financial Services

Other employees you can reach at discover.com. View company contacts for 21509 employees →

LT Laura Turner Laura Turner Colleague at Discover Financial ServicesGalloway, Ohio, United States View → FH Fayyaz Hossain Fayyaz Hossain Colleague at Discover Financial ServicesGaithersburg, Maryland, United States View → ZH Zain Hurst Zain Hurst Colleague at Discover Financial ServicesGreater Phoenix Area, United States View → BP Bannasorn Paspanthong Bannasorn Paspanthong Colleague at Discover Financial ServicesUnited States View → DC David Carmiencke David Carmiencke Colleague at Discover Financial ServicesAvondale, Arizona, United States View → EM Eddie Moder Eddie Moder Colleague at Discover Financial ServicesArlington Heights, Illinois, United States View → SA Subha Adusumalli Subha Adusumalli Colleague at Discover Financial ServicesBarrington Hills, Illinois, United States View → RM Ryan Milner Ryan Milner Colleague at Discover Financial ServicesColumbus, Ohio, United States View → JC Jaycee Chhoun Jaycee Chhoun Colleague at Discover Financial ServicesHerriman, Utah, United States View → DV Dianne Vandervort Dianne Vandervort Colleague at Discover Financial ServicesGlendale, Arizona, United States View →
1 education record

John Coyne education

  • Illinois State University
    Illinois State University
    Computer Science
FAQ

Frequently asked questions about John Coyne

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

What company does John Coyne work for?

John Coyne works for Discover Financial Services.

What is John Coyne's role at Discover Financial Services?

John Coyne is listed as Software Engineer at Discover Financial Services at Discover Financial Services.

What is John Coyne's email address?

AeroLeads has found 3 work email signals at @discover.com for John Coyne at Discover Financial Services.

Where is John Coyne based?

John Coyne is based in Wauconda, Illinois, United States while working with Discover Financial Services.

What companies has John Coyne worked for?

John Coyne has worked for Discover Financial Services and Country Insurance.

Who are John Coyne's colleagues at Discover Financial Services?

John Coyne's colleagues at Discover Financial Services include Laura Turner, Fayyaz Hossain, Zain Hurst, Bannasorn Paspanthong, and David Carmiencke.

How can I contact John Coyne?

You can use AeroLeads to view verified contact signals for John Coyne at Discover Financial Services, including work email, phone, and LinkedIn data when available.

What schools did John Coyne attend?

John Coyne holds Bachelor Of Science, Computer Science from Illinois State University.

What skills is John Coyne known for?

John Coyne is listed with skills including Struts, Java, Jdbc, Websphere Application Server, Ejb, Ajax, Unix, and Apache.

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