John Diffley

John Diffley: Email & Phone Number

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Part Time Software Developer at Sentry|St Paul, Minnesota, United States

Position:

Part Time Software Developer at Sentry

Location:

St Paul, Minnesota, United States

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Last updated: 2026-05-24
Updated: 2026-05-24

Found email addresses for John Diffley:

Business emails:
Personal emails:
d***@tcc-club.com

Found phones for John Diffley:

+1-323-***-**65,
+1-323-***-**97
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Work Experience 10 years

Part Time Software Developer at Sentry

Aug 2025 - Current

Software Development Intern at Sentry

May 2025 - Aug 2025

Internal Operations Student Assistant at UW-Madison Division of Information Technology (DoIT)

Apr 2023 - May 2025

IT Infrastructure Intern at Sentry

May 2024 - Aug 2024

Information Technology Intern at Patterson Companies, Inc.

May 2023 - Aug 2023

Contractor at Instawork

Jun 2022 - Mar 2023

Principal at Zephyr Painting

May 2016 - Sep 2022

Groundskeeper at Town & Country Club

Jul 2022 - Aug 2022

Assistant Coach at Newman's Camp

Jun 2021 - Aug 2021

Team Lead at Oak Glen Golf Course

Jun 2019 - Aug 2021

John Diffley started working in 2016, then the employee has changed 7 companies and 9 jobs. On average, John Diffley works for one company for 1 year 4 months.

Their professional focus is Accounting, Advertising, and Analytical Skills across 3 core areas.

Education

Bachelor of Science - BS at University of Wisconsin-Madison

High School Diploma at Mahtomedi Senior High School

Frequently Asked Questions

SignalHire found verified email addresses for John Diffley, both business and personal. Their business email is j*******y@sentry.com, and personal emails include d***@oakglengolf.com, and d***@tcc-club.com.
SignalHire found multiple verified phone numbers for John Diffley: +1-870-***-**62, +1-323-***-**65, and +1-323-***-**97.
You can reach John Diffley through SignalHire by unlocking their verified email and direct phone number (free signup, no credit card needed). SignalHire is the fastest route if you need their contact details immediately.
John Diffley has 10 years of professional experience. They have held roles including Software Development Intern, Internal Operations Student Assistant, and IT Infrastructure Intern at companies such as Sentry, UW-Madison Division of Information Technology (DoIT), and Sentry. Their education includes Bachelor of Science - BS from University of Wisconsin-Madison, and High School Diploma from Mahtomedi Senior High School.
Yes. John Diffley's SignalHire profile was last updated on 24 May 2026, reflecting their current position as Part Time Software Developer at Sentry in Stevens Point, WI, United States.

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