Principal Agentic AI Security Engineer

Epsilon Solutions Ltd.; Toronto; On-site; CAD 140,000 - 230,000; Full time

Job summary

Epsilon Solutions Ltd. in Toronto seeks a Principal Consultant, Agentic AI Cybersecurity Engineer to lead hands-on development and operation of agentic AI vulnerability management across our app and infra estate.

You will guide exploitation and remediation in production code, integrate fixes into CI/CD, and design safe human-in-the-loop controls while expanding AI skills and tooling. The role blends offensive and defensive security with secure coding practices and requires deep architectural

Qualifications

• 10+ years hands-on software engineering and security leadership.
• Deep fluency in vulnerability classes and exploit development.
• Experience with enterprise security tooling and CI/CD integration.
• Proven record of publishing vulnerability research or pentests.

Responsibilities

• Architect and operationalize the end-to-end agentic AI patching pipeline spanning detection, fix generation, automated testing, and release across SAST, DAST, SCA, IAST, container, and server vulnerabilities.
• Use frontier AI models to discover novel vulnerabilities in production code, develop proof-of-concept exploits, and validate AI-generated fixes.
• Build and maintain the library of reusable AI skills, prompts, evaluation harness, and tooling for agentic vulnerability discovery and remediation at scale.
• Design AI-driven false positive analysis and exemption processes to reduce manual triage burden.
• Conduct hands-on penetration testing and red team exercises against critical apps and infra to validate defenses.
• Extend agentic remediation coverage across SAST, SCA, DAST, IAST, container, and server vulnerabilities, linking findings to source.
• Design agent prompting, guardrails, evaluation frameworks, and human-in-the-loop controls for safe autonomous changes.
• Drive integration of agentic remediation into enterprise CI/CD pipelines across the deployment landscape.
• Communicate technical design, risk trade-offs, and delivery progress to CIO, CISO, 2LOD, and Audit functions.

Skills

Software engineering

Offensive security

Defensive security

Memory safety

Injection flaws

Cryptographic misuse

Deserialization

Race conditions

Supply chain attacks

Penetration testing

Red teaming

Exploit development

Reverse engineering

Secure code review

SAST

DAST

IAST

SCA

Claude

Devin

Copilot

Windsurf

Cursor

MCP

CI/CD

Docker

Kubernetes

Cloud-native deployment

Security automation

Job description

Epsilon Solutions Ltd. in Toronto seeks a Principal Consultant, Agentic AI Cybersecurity Engineer to lead hands-on development and operation of agentic AI vulnerability management across our app and infra estate.

You will guide exploitation and remediation in production code, integrate fixes into CI/CD, and design safe human-in-the-loop controls while expanding AI skills and tooling. The role blends offensive and defensive security with secure coding practices and requires deep architectural