S3E Engineers Employee Directory

Q: Who are S3E Engineers key employees?

Some of S3E Engineers key employees are Melvin Straus , Ralph Petrossian , Rafayel Petrossian

S3E Engineers corporate office is located in 8001 Braddock Rd Ste 200, Springfield, Virginia, 22151, United States and has 11-50 employees.

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Key Employees of S3E Engineers

MS
Melvin Straus
Principal
PhoneEmail
RP
Ralph Petrossi...
Senior Project Engineer
PhoneEmail
RP
Rafayel Petros...
Project Engineer
PhoneEmail
PhoneEmail
PhoneEmail
PhoneEmail

S3E Engineers Global Presence

Location	People at location
Africa	1-10

Index of contact profiles from S3E Engineers

Hundreds of professionals searching for S3E Engineers have connected with key decision-makers. Join them?

Contact Name

Contact Info

Job Title

HQ Location

RP
Rafayel Petrossian
Email Direct
Project Engineer
United States , Virginia , Springfield

RP
Ralph Petrossian
Email Direct
Senior Project Engineer
United States , Virginia , Springfield

Former Employees at S3E Engineers

Explore people who held key positions, contributed to S3E Engineers's success, and advanced their careers.

Rocky Styer

Senior Vice President at GPI

Worked as Principal

at S3E Engineers (1977-2025)

Direct

Rasko Dabic

Senior Vice President at GPI

Worked as Principal

at S3E Engineers (1999-2018)

Direct

Kelsey Schumacher

Environmental Scientis... at GPI

Worked as Environmental Scientist

at S3E Engineers (2026-2026)

Direct

Mask Content

Business Intelligence ... at Booz Allen

Worked as Summer Intern

at S3E Engineers (2018-2018)

Direct

Mask Content

Mechanical Department ... at Vanderweil Engineers

Worked as Principal

at S3E Engineers (2004-2017)

Direct

Mask Content

Electrical Subject Mat... at Meta

Worked as Electrical Engineer

at S3E Engineers (2017-2018)

Direct

Explore More

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Frequently Asked Questions Regarding S3E Engineers Employees

How many employees does S3E Engineers have?

S3E Engineers has 11-50 employees

Who are S3E Engineers key employees?

Some of S3E Engineers key employees are Melvin Straus, Ralph Petrossian, Rafayel Petrossian

Where is S3E Engineers located?

S3E Engineers’s headquarters are located at 8001 Braddock Rd Ste 200, Springfield, Virginia, 22151, United States

How do I contact S3E Engineers?

S3E Engineers Contact Info: Phone number: (703) 978-0100 Website: www.s3e.com

What does S3E Engineers do?

GPI is a 100% employee-owned company that specializes in innovative and sustainable engineering design and construction solutions. They offer a wide range of services including alternative project delivery, construction inspection, environmental consulting, and intelligent transportation systems. GPI collaborates with clients and communities to dev... Read More

Is S3E Engineers a public company?

S3E Engineers is private company therefore does not currently have an official ticker symbol

See more information about S3E Engineers Employees