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Staff Security Engineer

Canada; United States, Ottawa · Job Posted January 06, 2026
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Job Description

Fullscript is seeking a seasoned Staff Security Engineer to join our security team as a senior technical leader. In this role, you’ll shape the technical vision for product and AI security across the organization, mentoring teammates and driving impact through deep technical expertise and cross-functional collaboration.

Job Responsibility

  • Lead the design and implementation of robust security architectures for Fullscript’s applications, and AI initiatives
  • Collaborate closely with engineering teams to embed security into the development lifecycle, including threat modeling, security coding practices, and design reviews
  • Drive AI security best practices, ensuring responsible deployment, and mitigation of risks such as data poisoning, prompt injection, or model exploitation
  • Mentor engineers and other security team members, fostering a culture of security awareness and technical excellence across the organization
  • Conduct technical risk assessments, security research, and code reviews to proactively identify and remediate vulnerabilities
  • Influence cross-functional teams through technical leadership, helping define security standards and strategies that scale across Fullscript’s products and AI ecosystem
  • Stay ahead of emerging threats, attack vectors, and AI-specific security challenges to guide strategic decisions for the organization’s security posture

Requirements

  • Deep technical expertise in application security, and secure software development
  • Experience with AI/ML security
  • Strong understanding of modern software architectures, cloud environments, and APIs
  • Proven ability to influence and mentor engineers across teams, fostering security-first thinking and best practices
  • Hands-on experience with security tooling and automation, including static/dynamic analysis, monitoring, and observability systems
  • Strong problem solving skills, able to balance security rigor with product velocity
  • Excellent communication and collaboration skills, able to translate complex security concepts to technical and non-technical stakeholders

Nice to have

  • Experience with protecting / hardening of health data
  • Experience securing Ruby on Rails, Javascript, GraphQL applications
  • Familiarity with regulatory and compliance frameworks relevant to software and AI security is a plus (e.g. SOC 2, NIST)

What we offer

  • Generous PTO and competitive pay
  • Fullscript’s RRSP match program for financial health
  • Flexible benefits package and workplace wellness program
  • Training budget and company-wide learning initiatives
  • Discount on Fullscript catalog of products
  • Ability to work Wherever You Work Well

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