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Join the S4 Inc. Team

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Featured Position

Are you a problem solver with experience in IT Operations? We may have the opportunity you’ve been looking for! We are seeking a Senior Installation Desktop Technician to support the US Senate in Washington, DC. Must be a US citizen.

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“I have worked for three different defense companies in the past ten years or so, but I have never worked for a better one than S4 Inc.”
“S4 Inc. is a company that cares about their employees.”
“Best company I’ve ever worked for in over 30 years of military and civilian service.”

Upcoming Events

Please check back this space for upcoming events.

S4 Inc. is an Equal Opportunity Employer.

All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or status as a protected veteran.

Notice to All Applicants – EEO Policy Statement

E-Verify Participation Poster

Equal Employment Opportunity Posters

Know Your Rights Poster

Pay Transparency Poster

Pay Transparency Poster


If you are an individual with a disability or a disabled veteran who is unable or limited in your ability to use or access to apply to a position, please contact Janine Hunter, VP of Recruiting, by phone at (781) 430-9122 or by email at for an accommodation to this process.

Affirmative Action Plan Notice


S4 Inc. is a covered federal contractor or subcontractor subject to the requirements of the Vietnam Era Veterans Readjustment Assistance Act (VEVRAA), as amended, and Section 503 of the Rehabilitation Act of 1973, as amended.  As such, S4 Inc. is bound by the terms of VEVRAA and Section 503, and shall not discriminate against individuals with disabilities or protected veterans, and is committed to take affirmative action to employ and advance in employment protected veterans and individuals with disabilities.

S4 Inc. maintains an Affirmative Action Plan for the purpose of proactively seeking employment and advancement in employment of qualified protected veterans and individuals with disabilities.  As an individual interested in employment with S4 Inc., or as one of S4 Inc.’s valued employees, S4 Inc. welcomes the opportunity to make its employees and applicants more aware of the S4 Inc.’s obligations and affirmative efforts.

S4 Inc. will make accessible to you its Affirmative Action Plan for protected veterans and individuals with a disability by submitting your written request to Janine Hunter, VP of Recruiting at or to S4 Inc. Suite 105, 209 Burlington Road, Bedford, MA 01730, Attention: Janine Hunter.