Principal Security Engineer

New York, NY
Technology & Development – Corp IT /
Full-time /

Viant is seeking a qualified Principal Security Engineer who will ensure our internal applications and cloud platforms are designed with the highest security standards in mind. The Principal Security Engineer will be tasked with improving security of the company’s infrastructure, protecting against security threats including intrusions, ransomware, malware, system-level breaches, unauthorized access, insider attacks and loss of proprietary information.


    • Develop and maintain the organization's security strategy including policies, procedures and standards.
    • Design, implement, and manage security solutions to protect our cloud and on-prem infrastructure
    • Take lead with the security team providing direction and mentorship
    • Maintain regular communication with other departments of the company to ensure adherence to security standards and identify potential risks
    • Ensure processes and policies are reviewed on their defined schedule
    • Regularly review our existing processes and procedures for improvement and to ensure they are kept up to date
    • Manage the security team’s response and 24x7 on-call
    • Identify tasks that can be improved with automation
    • Responsible for ensuring our security alerts as well as vulnerability scans have full coverage of our environment
    • Maintain an expert level understanding of attacks, vectors and emergent threats.
    • Vulnerability Testing: Regularly conduct vulnerability assessment and penetration testing on our IT systems.
    • Work across teams to ensure relevant secure technology and practices are in place and being appropriately managed.
    • Risk Analysis: Evaluate the organization’s security needs and establish best practices and standards based on this analysis.
    • Training: Provide staff with regular cyber security awareness training to ensure consistent best practices.
    • Updates: Stay current with the latest technologies and solutions in the cyber security space.
    • Develop and oversee security monitoring for Production, QA, Development & Corporate IT systems to create a deep understanding of trends, anomalies and incidents.
    • Work with Compliance team to design and manage comprehensive internal and cloud application monitoring.
    • Work with developers to ensure applications meet security requirements.
    • Enforce compliance of Privacy and data usage policies.
    • Perform as part of our Crisis Management team.
    • Create and engineer automations to be more efficient handling security related incidents and events.
    • Implement, manage and consistently review security tooling such as SIEM and Vulnerability management.
    • Be part of an on-call rotation to handle alerts and incident response on a 24x7 basis.


    • Bachelor’s degree in information technology, Computer Science, or a related field and a minimum of 5+ years experience in a cyber security role.
    • Proficient in various security software and technologies and familiarity with security tooling used in popular cloud providers (AWS/GCP preferred).
    • Knowledge of current security threats, techniques, and landscape.
    • Preferred certifications: CISSP, CISM, CEH
    • Familiar with user data privacy regulatory requirements
    • Experience working with scripting and programming languages such as Python to interface with APIs
    • Experience with a public company or working with external auditors and SOX compliance.


    • Viant® (NASDAQ: DSP) is a leading advertising software company that enables marketers to plan, execute and measure omnichannel ad campaigns through a cloud-based platform. Viant’s self-service Demand Side Platform, Adelphic®, powers programmatic advertising across Connected TV, Linear TV, mobile, desktop, audio, gaming and digital out-of-home channels. In 2022, Viant was recognized as a Leader in the DSP category, earned Great Place to Work® certification and Co-Founders Tim and Chris Vanderhook were named EY Entrepreneurs of the Year. To learn more, please visit


    • Investing in our employee’s professional growth is important to us, but so is investing in their well-being. That’s why Viant was voted one of the best places to work and some of our favorite employee benefits include fully paid health insurance, paid parental leave and unlimited PTO and more. 
$230,000 - $260,000 biweekly
Base: $230,000 - $260,000 a year

In accordance with California law, the range provided is Viant’s reasonable estimate of the compensation for this role.  Final title and compensation for the position will be based on several factors including work experience and education.