Sr. Trust and Safety Investigator

Company Description

Linked In is the world’s largest professional network, built to create economic opportunity for every member of the global workforce. Our products help people make powerful connections, discover exciting opportunities, build necessary skills, and gain valuable insights every day. We’re also committed to providing transformational opportunities for our own employees by investing in their growth. We aspire to create a culture that’s built on trust, care, inclusion, and fun – where everyone can succeed.

Join us to transform the way the world works.

At Linked In, our approach to flexible work is centered on trust and optimized for culture, connection, clarity, and the evolving needs of our business. The work location of this role is hybrid, meaning it will be performed both from home and from a Linked In office on select days, as determined by the business needs of the team. This role will be hybrid in Linked In's Omaha, Nebraska office.

We are seeking an experienced Trust Investigator to join our Scaled Investigations Team at the Omaha site. They will apply advanced investigative tradecraft and case management to uncover and mitigate coordinated, persistent, and high‑impact abuse, ensuring a safe and professional experience for Linked In members. This role is pivotal in managing high priority anti‑abuse investigations and driving intelligence insights that improve the effectiveness of Trust systems and the Linked In platform.

Additionally, they will advance the technical skills of team members and lead cross‑functional initiatives in Trust.

Our Trust Investigators play a key role in protecting Linked In’s members and our platform from adversarial abuse; we are looking for a self‑starter who takes ownership over their work and enjoys being part of a fast‑paced, collaborative, global team that values results.

• Lead and/or facilitate the resolution of high-priority investigative cases supported by the Scaled Investigations Team, involving coordinated campaigns, abuse networks, and complex attacks.
• Assist with the case management of investigative request escalations related to coordinated and complex abuse, working with our incident response function when appropriate.
• Generate proactive investigative leads, track coordinated threat (CT) activity, and develop technical playbooks to scale investigative work.
• Produce timely and actionable threat intelligence reports and briefings to inform Trust leadership and drive strategic investments in our defense and our products.
• Advance team investigative tradecraft using querying and data analysis languages like SQL and Python for proactive abuse discovery.
• Collaborate closely with cross‑functional teams including product management, incident management, data science, legal, and security operations to ensure shared understanding and guide product strategy.
• Develop and refine threat hunting methodologies, tools, and frameworks tailored to the social media landscape, incorporating data from internal signals, external intelligence feeds, and open‑source investigations.
• Mentor and guide investigators, fostering a culture of deep investigative rigor and continuous learning.
• Integrate threat intelligence with platform signals to enhance detection capabilities and proactively prevent abuse or harm.
• Stay current on threat actor tactics, techniques, and emerging trends relevant to social media manipulation and abuse.
• Ensure investigation activities align with privacy, legal, and ethical standards.

• Bachelor’s Degree in cyber security, criminal justice or other related technical disciplines, or equivalent technical experience.
• 5+ years of experience in threat investigations, preferably within a trust and safety, social media, or online platform context.
• Subject matter expertise in account, behavior or content abuse in a social media or user generated content context.
• Experience with open-source investigation techniques and familiarity with a variety of internet research tools.
• Experience with threat intelligence platforms, digital forensics, and investigative tools.
• Skilled at synthesizing complex data sets into…