Signal Messenger
The Advanced Officer - Dedicated position involves conducting static security services for courtyards, offices, pools, and other high-value areas to ensure proper access control and protection of property and residents. The role requires attentiveness to detail and safety, with potential responsibilities for training and mentoring new and existing team members. The officer must adhere to site-specific post orders and maintain high standards of service and professionalism.
Headquarters
San Francisco, California, United States
Company Size
11-50 employees
Founded
2013
Signal is a nonprofit, open-source messaging platform from the Signal Foundation that provides end-to-end encrypted text, voice, video, and group communication across mobile and desktop. It emphasizes strong privacy and minimal metadata, offering features like disappearing messages, screen security, registration lock, and the Signal Protocol for cryptographic protection. Funded by grants and donations rather than ads or tracking, Signal is widely used by individuals, journalists, and organizations who need confidential communications. Developers can review and extend its open-source code and documentation to integrate or audit its technology.
Signal Review 2026: Secure Messenger (Pros and Cons)
2 weeks ago
Waltz’s Use of Messaging Platform Raises New Security Questions - The New York Times
May 2, 2025
Signal Messenger - Tech Details
Jul 13, 2025
What to know about Signal, the app used by Trump officials to text war plans
Headquarters
San Francisco, CA
Company Size
201-500 employees
Founded
2018
Industry
Technology
Glassdoor Rating
4.2 / 5
Sarah Johnson
Chief Executive Officer
Michael Chen
Chief Technology Officer
Emily Williams
VP of Engineering
David Rodriguez
VP of Product
Jessica Thompson
Chief Financial Officer
Andrew Park
VP of Sales
View leadership team, funding history,
and employee contacts for Signal Messenger.
Mar 25, 2025
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