Trust Investigator: Scaled Investigations & Enforcement

SmartRecruiters, Inc.; Omaha (NE); Hybrid; USD 110,000 - 160,000; Full time

Job summary

LinkedIn in Omaha, NE is seeking a Trust Investigator to join the Scaled Investigations Team. This role applies investigative tradecraft at scale to uncover coordinated, persistent, and high-impact abuse targeting LinkedIn members, driving enforcement and informing product and policy improvements.

Investigations span detection and mitigation of fake networks, account takeover and credential abuse, payment and subscription fraud, and the scam infrastructure behind them.

Qualifications

• Bachelor's Degree in cyber security, criminal justice or other related technical disciplines, or equivalent technical experience.
• 3+ years of experience investigating account, behavior, or content abuse, preferably within a trust and safety, social media, or online platform context.
• Experience independently writing SQL queries to access and analyze large-scale datasets in support of investigations.
• Experience using Python or another scripting language to automate investigative workflows.
• Experience with open-source investigation techniques and familiarity with a variety of internet research tools.
• Experience synthesizing complex data sets into clear and actionable insights for diverse audiences.

Responsibilities

• Lead investigations into coordinated campaigns and abuse networks, expanding from an initial lead through pivot analysis across account, device, and behavioral signals.
• Track persistent abuse patterns and the actors behind them, including how they adapt after enforcement.
• Proactively hunt for undetected abuse and generate investigative leads using internal platform signals, open-source research, and threat intelligence.
• Define and validate detection logic from case findings, partner with Engineering, Product teams, and Data Science on implementation, and evaluate detection performance after deployment.
• Drive large-scale enforcement and takedown actions, including backtesting detection logic, validating targets before enforcement, and measuring false positives after action.
• Triage and route front-line signals and alerts, and provide escalation support and investigative analysis on high-severity incidents.
• Produce threat intelligence reports, briefings, and risk recommendations that identify product, policy, and model gaps exposed by investigations and inform strategic investment in our defenses.
• Use AI-assisted workflows, agents, and notebooks to scale investigation and analysis, and evaluate the quality and accuracy of AI output.
• Write SQL queries to access and analyze large-scale platform data, identify abuse patterns, test investigative hypotheses, and support enforcement and detection decisions.
• Build tooling, playbooks, and documentation that scale investigative methodology across the team.

Skills

Trust investigations

Platform abuse

Threat hunting

Data analysis

Education

Bachelor's degree or equivalent

Tools

SQL

Python

Job description

LinkedIn in Omaha, NE is seeking a Trust Investigator to join the Scaled Investigations Team. This role applies investigative tradecraft at scale to uncover coordinated, persistent, and high-impact abuse targeting LinkedIn members, driving enforcement and informing product and policy improvements.

Investigations span detection and mitigation of fake networks, account takeover and credential abuse, payment and subscription fraud, and the scam infrastructure behind them.