Mark Bostjanick: Email & Phone Number

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Financial Analyst at Cybersec Investments|Washington DC-Baltimore Area, United States

Position:

Financial Analyst at Cybersec Investments

Location:

Washington DC-Baltimore Area, United States

View Mark Bostjanick's Email

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Last updated: 2026-08-13

Updated: 2026-08-13

Found email addresses for Mark Bostjanick:

Business emails:

b*************k@cybersecinvestments.com

Personal emails:

m***@t-mobile.com,

m***@att.com,

m***@yahoo.com,

m***@gmail.com

Found phones for Mark Bostjanick:

+1-480-***-**05,

+1-323-***-**04,

+1-480-***-**53

A different Mark Bostjanick?

Work Experience 6 years

Financial Analyst at Cybersec Investments

Jul 2026 - Current

Retail Associate Manager at T-Mobile

Sep 2025 - Jul 2026

Mobile Expert at T-Mobile

Jun 2023 - Oct 2025

Sales Consultant at AT&T

Aug 2020 - May 2023

Assistant Manager at Sprint

Jan 2020 - Aug 2020

Mark Bostjanick started working in 2020, then the employee has changed 3 companies and 4 jobs. On average, Mark Bostjanick works for one company for 1 year 4 months.

Their professional focus is Accounting, Accounts Payable (AP), and Corporate Branding across 3 core areas.

Education

Bachelor's degree at The University of Arizona Global Campus

Frequently Asked Questions

What is Mark Bostjanick's email address?

SignalHire found verified email addresses for Mark Bostjanick, both business and personal. Their business email is b*************k@cybersecinvestments.com, and personal emails include m***@t-mobile.com, m***@att.com, and m***@yahoo.com.

What is Mark Bostjanick's phone number?

SignalHire found multiple verified phone numbers for Mark Bostjanick: +1-480-***-**05, +1-323-***-**04, and +1-480-***-**53.

How do I contact Mark Bostjanick at Cybersec Investments?

You can reach Mark Bostjanick 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 Mark Bostjanick's professional background?

Mark Bostjanick has 6 years of professional experience. They have held roles including Retail Associate Manager, Mobile Expert, and Sales Consultant at companies such as T-Mobile, T-Mobile, and AT&T. Their education includes Bachelor's degree from The University of Arizona Global Campus.

Is Mark Bostjanick's contact information up to date?

Yes. Mark Bostjanick's SignalHire profile was last updated on 13 August 2026, reflecting their current position as Financial Analyst at Cybersec Investments in Melbourne, Florida, United States.

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