Senior Security Engineer - Insider Threat

Posted Yesterday
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Hiring Remotely in Canada
Remote
153K-213K Annually
Senior level
Big Data • Fintech • Mobile • Payments • Financial Services
We create honest financial products that improve lives. Ready to make a difference?
The Role
Build and operate Affirm’s insider threat program, including investigative standards, detection use cases, controls, metrics, and reporting. Support insider risk investigations through telemetry and evidence analysis, threat modeling, and written recommendations. Partner with Legal, HR, Privacy, and Compliance on case handling and regulatory obligations. Improve DLP, endpoint monitoring, access governance, and SaaS security controls. Automate evidence collection, case routing, triage, and investigation workflows using Python, automation platforms, and agentic AI.
Summary Generated by Built In

At Affirm, we exist for the moments that matter—giving people a clear, predictable way to pay over time, with no hidden fees, no surprises, and no tradeoffs on what matters most.

About the InfoSec team 

The InfoSec team protects Affirm’s systems and data from evolving threats. We manage security risk, monitor vulnerabilities, and enforce protective controls across the company. The team leads incident response, compliance, identity and access management, and employee training. Our goal is to ensure that security is built into every system and decision at Affirm. We maintain a secure, trustworthy environment so the business can operate and grow with confidence.

About the role

In this role, you'll help mature Affirm's insider threat program. You'll build out the controls, detection use cases, and investigative practices that make it work day to day, support insider risk investigations, and partner with Legal, HR, Privacy, and Compliance to keep the program effective, proportionate, and trusted by Affirmers.

What you’ll do

  • Lead the build-out of key insider threat workstreams, from initial design through to day-to-day operation 
  • Build out the program's operating mechanics, including investigative standards, playbooks, and the metrics and reporting that show whether the program is working
  • Support insider risk investigations alongside SIRT, bringing insider threat expertise, telemetry and evidence analysis, and written findings and risk recommendations
  • Partner with Legal, HR/Employee Relations, Privacy, and Compliance on case handling and escalation criteria, helping ensure the program respects employee privacy and meets legal and regulatory obligations
  • Threat model Affirm's highest-risk data and systems for insider risk, and partner with detection engineers to turn the results into production detections
  • Own and improve the controls that reduce insider risk, including data loss prevention, endpoint monitoring, secure browser and contractor access controls, SaaS posture management, and access governance, working with system owners to close gap
  • Automate the program's operational load with workflow automation platforms and Python, covering evidence collection, case routing, and reporting
  • Build and expand agentic automations that assist with insider risk triage and investigation, and define which decisions stay with a human

What we look for

  • Deep expertise in security engineering, security operations, insider risk, or digital forensics 
  • Track record of standing up new security capabilities where little existed before
  • Experience running investigations end to end, including evidence handling, log and endpoint forensics, timeline reconstruction, and written findings suitable for Legal and HR audiences Ability to write and evaluate detection logic against endpoint, identity, cloud, and SaaS telemetry in a SIEM (Splunk, Elastic, Panther, Chronicle, or similar)
  • Hands-on experience with insider risk tooling such as DLP, UEBA, endpoint detection and response, CASB, and access governance, with a practical sense of their strengths and limits
  • Working knowledge of Python for security tooling and automation
  • Experience building and maintaining production workflows in automation platforms such as Tines, Torq, or similar
  • Experience building and running agentic automations in production that assist with alert triage and investigation, such as LLM-driven enrichment, summarization, or first-pass analysis, with a clear view of where human review stays in the loop
  • Discretion and sound judgment handling sensitive investigations, and comfort navigating the privacy, legal, and employee-relations considerations that insider work carries
  • Clear written and verbal communication skills, with the ability to work across Security, Engineering, Legal, HR, Privacy, and Compliance
  • Experience in regulated or financial services environments (SOC 2, PCI DSS, GLBA) is a plus

Base Pay Grade - N
Equity Grade - Canada 6

Employees new to Affirm typically come in at the start of the pay range. Affirm focuses on providing a simple and transparent pay structure which is based on a variety of factors, including location, experience and job-related skills.

Base pay is part of a total compensation package that may include monthly stipends for health, wellness and tech spending, and benefits (including 100% subsidized medical coverage, dental and vision for you and your dependents). In addition, the employees may be eligible for equity rewards offered by Affirm Holdings, Inc. (parent company).

CAN base pay range per year: $153,000 - $213,000 $CAD.

This remote role is open only to candidates residing in Alberta, British Columbia, Manitoba, New Brunswick, Newfoundland and Labrador, Nova Scotia, Ontario, Prince Edward Island, or Saskatchewan.

#LI-Remote

Remote-first with flexibility built in
Affirm is proud to be a remote-first company. Most roles can be done from almost anywhere within the country of employment. Some positions may occasionally require in-person work at an Affirm office, and a few are office-based due to the nature of the work. All new hires will be invited to attend an in-person onboarding experience.

Benefits designed for you
Our benefits reflect our commitment to care, transparency, and flexibility. Here are a few highlights:

  • Health coverage at no cost: We cover 100% of premiums for employees and their dependents.
  • Spending stipends: Monthly stipends support your tech setup, and the ability to choose health and wellness options that are right for you.
  • Time off to recharge: Flexible time off and generous holiday calendars help you rest when you need to.
  • Own a piece of what you build: Our employee stock purchase plan (ESPP) lets you buy Affirm stock at a discount.

We’re committed to providing an inclusive interview process, including accommodations for candidates with disabilities. If you need support, we’re happy to help.

For positions based in San Francisco or Los Angeles: Affirm considers qualified applicants with arrest and conviction records, as required by law.

By clicking "Submit Application," you acknowledge that you have read Affirm's Global Candidate Privacy Notice and consent to the use of your personal information as described.

Skills Required

  • Deep expertise in security engineering, security operations, insider risk, or digital forensics
  • Experience standing up new security capabilities from initial design through operation
  • Experience running end-to-end investigations, including evidence handling, log and endpoint forensics, timeline reconstruction, and written findings
  • Ability to write and evaluate detection logic using endpoint, identity, cloud, and SaaS telemetry in a SIEM
  • Hands-on experience with DLP, UEBA, endpoint detection and response, CASB, and access governance tools
  • Working knowledge of Python for security tooling and automation
  • Experience building and maintaining production workflows in Tines, Torq, or similar automation platforms
  • Experience building and running production agentic automations for alert triage and investigation
  • Ability to exercise discretion and sound judgment when handling sensitive investigations
  • Ability to navigate privacy, legal, and employee-relations considerations
  • Clear written and verbal communication skills across Security, Engineering, Legal, HR, Privacy, and Compliance
  • Experience in regulated or financial services environments, including SOC 2, PCI DSS, or GLBA

What the Team is Saying

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Affirm Compensation & Benefits Highlights

  • Healthcare Strength — Health coverage is highlighted as a standout, including 100% employer-paid medical premiums for employees and dependents alongside access to mental-health support and coaching sessions. These elements position the medical offering as comprehensive and easy to use.
  • Parental & Family Support — Paid parental leave is notably generous at 18 weeks for birth and non-birth parents, complemented by a four-week return-to-work transition at full base pay. Additional family-building support and related resources further strengthen this area.
  • Leave & Time Off Breadth — Time off is positioned as broad and flexible, with flexible PTO plus approximately 20 company-wide paid Away Days designed to encourage rest. This structure aims to make downtime accessible across the organization.

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The Company
HQ: San Francisco, CA
2,200 Employees
Year Founded: 2012

What We Do

At Affirm, we help people say yes to the things that matter with flexible, transparent ways to pay over time. No hidden fees, no compound interest, and no fine print—just a smarter way to spend.

Why Work With Us

Who is an Affirmer? /noun/ Someone who believes finance shouldn’t be complicated. We come from a diverse set of backgrounds and we’re driven by the desire to improve lives through honest financial products. We define success by challenging one another to bring our best ideas to every single project—and we have fun while doing it.

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Affirm Offices

Remote Workspace

Employees work remotely.

Affirm is a remote-first company! Our employees can work anywhere in the U.S. but if an office is more your style, we have office locations in San Francisco, Chicago, New York City, and Pittsburgh.

Typical time on-site:
HQSan Francisco, CA
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United Kingdom
Chicago, IL
New York, NY
Toronto, ON
Warsaw, PL
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