Senior Threat Architect — Ad Fraud & Safety

Remote; San Francisco (CA); Remote; USD 180,000 - 240,000; Full time

Benefits offered by this job

Comprehensive Healthcare Benefits and

401k with Employer Match

Global Benefit programs for workspace,

Family Planning Support

Gender-Affirming Care

Mental Health & Coaching Benefits

Flexible Vacation & Paid VolunteerTime

Generous Paid Parental Leave

Job summary

Reddit is seeking a Staff Threat Analyst to lead the operational architecture for advertiser fraud within Safety. You will own end-to-end strategy, build detection playbooks, and define enforcement frameworks.

You’ll partner with Product, Engineering, Data Science, and Ops to translate insights into scalable defenses and risk scores. You will drive multi-quarter vision, design playbooks, and deliver high-precision detection logic.

Qualifications

• 7+ years of experience in threat intelligence, ad tech safety, trust & safety investigations, or platform integrity (focused on ad fraud, financial crime, ATO, or spam abuse).
• Demonstrated 0-to-1 track record of operating in ambiguous environments to build threat response frameworks.
• Strong proficiency in SQL, Python or R, and big data environments to independently query petabyte-scale datasets and construct adversarial network graphs.

Responsibilities

• Strategy & System Architecture: Formulate and execute a multi-quarter vision for advertiser fraud detection and enforcement; independently prioritize high-impact risks like account takeover, payment/fraud, cloaking, deceptive ads and network abuse.

Skills

SQL

Python/R

Big data

AI/LLMs as copilots

Threat intelligence

Ad tech safety

Job description

Reddit is seeking a Staff Threat Analyst to lead the operational architecture for advertiser fraud within Safety. You will own end-to-end strategy, build detection playbooks, and define enforcement frameworks.

You’ll partner with Product, Engineering, Data Science, and Ops to translate insights into scalable defenses and risk scores. You will drive multi-quarter vision, design playbooks, and deliver high-precision detection logic.