John Diffley: Email & Phone Number

Opt-Out

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

Position:

Part Time Software Developer at Sentry

Location:

St Paul, Minnesota, United States

View John Diffley's Email

Up to 10 free lookups. No credit card required.

Last updated: 2026-05-24

Updated: 2026-05-24

Found email addresses for John Diffley:

Business emails:

j*******y@sentry.com

Personal emails:

d***@oakglengolf.com,

d***@tcc-club.com

Found phones for John Diffley:

+1-870-***-**62,

+1-323-***-**65,

+1-323-***-**97

A different John Diffley?

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

What is John Diffley's email address?

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.

What is John Diffley's phone number?

SignalHire found multiple verified phone numbers for John Diffley: +1-870-***-**62, +1-323-***-**65, and +1-323-***-**97.

How do I contact John Diffley at Sentry?

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.

What is John Diffley's professional background?

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.

Is John Diffley's contact information up to date?

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.

Similar profiles

Name

Company

Position

Brandon Whatley

ArcBest Technologies

Part Time Software Developer

Get contacts

Ege Uzun

Turkish Technology

Part Time Software Developer

Get contacts

See more profiles

Other employees at Sentry

Name

Company

Position

Samia Garcia

Sentry

Claims Representative

Get contacts

Allison Bergeron

Sentry

Subrogation Specialist

Get contacts

Tyler Spaeth

Sentry

Software Developer

Get contacts

Angela Lopez

Sentry

Customer Service Manager

Get contacts

Mike Janak

Sentry

Safety Services Consultant

Get contacts

Shanteri Caples

Sentry

Claims Adjuster

Get contacts

Reese Rogers

Sentry

Senior Information Security Analyst

Get contacts

Chelsea Russell

Sentry

Bodily Injury Adjuster

Get contacts

Krysty Rothenberger

Sentry

Total Loss claims representative

Get contacts

Sarah Hintz

Sentry

Corporate Underwriting and Product Specialist

Get contacts

See more profiles

Data Privacy

GDPR COMPLIANT

SignalHire complies with the General Data Protection Regulation (GDPR). SignalHire follows GDPR requirements, including but not limited to rights of data subjects to access, correct, or delete their personal information and supports the right to be forgotten.

CCPA COMPLIANT

SignalHire is CCPA-compliant and provides California residents the right to know, access, opt out, and request deletion of their personal data.