Senior / Staff DevSecOps Engineer

Benefits

Parental leave

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Non-birth-parent leave

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Family-building benefits

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Mental health support

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Relocation assistance

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Childcare support

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Learning budget

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Salary

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401(k) match

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Role

Role function

Security From the posting source checked Jun 20, 2026

Seniority

Senior From the posting source checked Jun 20, 2026

Work mode

Onsite From the posting source checked Jun 20, 2026

In-office days

5 days From the posting source checked Jun 20, 2026

Schedule

Shift type

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Weekend work

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Company

Company stage

Growth-stage From the posting source checked Jun 20, 2026

Application

Cover letter

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Assessment

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Deadline

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About this role

Senior / Staff DevSecOps Engineer Arlington, VA | OnSite ABOUT THE COMPANY America is under sustained cyber attack. Our adversaries infiltrate our networks, steal our IP, and degrade the digital infrastructure that modern life runs on. They've learned-correctly-that those attacks rarely produce consequences. Twenty was founded to change that, by making our adversaries think twice before they attack us. Our vision is American and allied primacy in cyberspace-a future where they cannot contest us, deterrence is assured, and the free world remains secure. Founded in 2024, Twenty Technologies (www.twenty.io http://www.twenty.io) industrializes offensive cyber operations for the U.S. and its allies. Headquartered in Arlington, Virginia, Twenty has raised $38M from Caffeinated Capital, General Catalyst, and In-Q-Tel. ROLE SUMMARY You'll build and own the security infrastructure that keeps Twenty's engineering systems safe without slowing engineers down. This role spans runtime security, access control, secrets management, compliance, and CI/CD hardening - but it's equally about making security the path of least resistance. You'll embed with our engineering teams, design secure-by-default foundations, and build the tooling and automation that lets developers move fast without cutting corners. You'll report directly to the VP of Engineering and operate as a shared function across our product teams. WHO YOU ARE - You believe security should be a force multiplier for engineering, not a gatekeeper. - You take ownership end-to-end: from identifying a risk to designing the control to shipping the fix. - You bring high judgment to tradeoffs - you know when to enforce hard controls and

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