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Added 5 mins ago
Senior/Lead Engineer - Agentic AI Development
FICO
Canada
Full-time
…person on every change. We call that environment the harness (Agent = Model + Harness). As a Senior Harness Engineer you'll independently own whole harness subsystems, set the standards…
Added 5 mins ago
Prompt Engineer - Early Career (Canada)
Jobright.ai
Canada
Full-time
Jobright is your personal AI job search agent transforming the job search process. They are seeking an early-career Prompt Engineer to craft and evaluate prompts that enhance the…
Added 5 mins ago
Cybersecurity Engineer, Entry Level (Canada)
Jobright.ai
Canada
Full-time
Jobright is your personal AI job search agent that transforms the way you do job search from solo, time-consuming efforts to a fast, expert-guided journey, simplifying every job search step…
Added 35 mins ago
Senior AI Engineer
Tekgence Inc
Toronto, ON
Contract
Experience with the Model Context Protocol (MCP), building tool or resource servers and clients, and with agent-to-agent (A2A) interoperability.
Added 35 mins ago
Staff Platform Engineer - Materia AI
Thomson Reuters
Toronto, ON
Full-time
Experience with AI-driven systems, agent-based architectures, LLM evaluation tools, and AI APIs from providers like OpenAI and Anthropic.
Added 1 hour ago
Offensive Security Engineer
Epsilon Solutions Ltd.
Toronto, ON
Contract
10+ years hands-on experience across software engineering, offensive security, and defensive security at a principal engineer level, with demonstrated personal contributions to production…
Added 1 hour ago
Senior Business Systems Engineer - Integrations & AI
Lyft
Toronto, ON
2+ years of experience with RAG (Retrieval Augmented Generation), vector databases, MCP and agent frameworks such LangChain, LangSmith or similar technologies
Added 1 hour ago
Observability Engineer (KUBERNETES & CONTAINERS, GITOPS & AUTOMATION, QUERY LANGUAGES, CLOUD & INFRASTRUCTURE)
Apptoza Inc.
Toronto, ON
Contract
We are seeking an experienced Observability Engineer to join our Enterprise Kubernetes Platform team at a leading financial services organization. You'll own the complete observability…
Added 2 hours ago
Senior Software Engineer, Internal Tools
Tubi - Canada
Toronto, ON
Make our AI systems dependable in production: evaluation harnesses, human approval steps before an agent acts, retries that handle a model returning something unexpected, and cost tracking…
Added 2 hours ago
AI Engineer, Agent Product (Full-time/Part-time) (Canada)
Jobright.ai
Canada
Full-time · Part-time
Hands-on experience using and deploying AI agents, such as: Claude Code, Codex, ClawdBot, OpenCode, or similar agent frameworks/tools
Added 3 hours ago
QA Engineer (Early Career) (Canada)
Jobright.ai
Canada
Full-time
Jobright is your personal AI job search agent that transforms the way you do job search from solo, time-consuming efforts to a fast, expert-guided journey, simplifying every job search step…
Added 3 hours ago
AI Engineer, Mid Level
Jobright.ai
Canada
Full-time
Jobright is a personal AI job search agent that simplifies job searching and helps users find better job outcomes. The Mid-Level AI Engineer designs, builds, evaluates, deploys, and…
Added 3 hours ago
Senior AI Engineer
CI Financial
Toronto, ON
Full-time
CI Financial is seeking an experienced and technically strong Senior AI Engineer to join our Data, AI & Analytics (DNA) team. This role focuses on the applied use of Generative AI and…
Added 4 hours ago
Founding Engineer, Generalist
Journify Learning
Vancouver, BC
Full-time
EdTech, K-12, or special education experience
Added 4 hours ago
Frontend Engineer
Jobright.ai
Canada
Full-time
Jobright is a personal AI job search agent that simplifies the job search process and helps users reach better job outcomes. The Frontend Engineer builds accessible, reliable web interfaces…
Added 5 hours ago
Senior Integration Architect
Infotree Global Solutions
Toronto, ON
Contract
Job Title: Sr Integration Engineer (Intelligent Automation)
Added 6 hours ago
Generative AI Cloud Operations Engineer - Evinova
Evinova
Mississauga, ON
Full-time
…research is conducted, how care is delivered, and how patients experience healthcare. Our solutions are built to scale, driving efficiency, improving decision-making, and ultimately…
Added 6 hours ago
Sr. AI Engineer
Arkhya Tech. Inc.
Canada
Full-time
Sr. AI Engineer – Vertex AI & GEAP Agent Builder with CI/CD experience (Not ML Engineers). More like Solution engineers.
Added 6 hours ago
Artificial Intelligence Engineer
Trinetra Systems
Mississauga, ON
Contract
Hands-on experience applying large language models, prompt engineering, retrieval-augmented generation, document processing, or agent-based patterns within a working application.
Added 6 hours ago
AI Native Engineer
United Software Group Inc
Vancouver, BC
Contract
Proven experience personally building and deploying an AI agent, LLM integration, or agentic workflow to production
Added 6 hours ago
Data Engineer (Early Career) (Canada)
Jobright.ai
Canada
Full-time
Jobright is your personal AI job search agent transforming the job search process. They are seeking an early-career Data Engineer to design and build data pipelines, ensuring data quality…
Added 7 hours ago
AI Automation & Software Engineer
WBM Technologies
Winnipeg, MB · Regina, SK · Saskatoon, SK · Edmonton, AB · Calgary, AB
Full-time
Experience working with AI models, LLMs, prompt engineering, and agent-based workflows.
Added 14 hours ago
Intermediate Software Engineer
AltaML
Toronto, ON
$90,000 to $110,000 CAD / year
Full-time
We overpay for the right people. We'd rather pay a premium for an engineer who embodies this and multiplies the team than save money on someone who doesn't
Added 14 hours ago
Senior Full Stack Developer (Global Security)
Royal Bank of Canada
Toronto, ON
Full-time
Professional experience with LLMs, RAG, vector search, and agent orchestration frameworks
Added 15 hours ago
Senior Data Platform Engineer
Norton Rose Fulbright
Toronto, ON
Full-time
The Senior Data Platform Engineer will act as a technical lead for our technologies in any project or initiative, and is responsible for designing, developing, implementing, and supporting…

Epsilon Solutions Ltd.

Offensive Security Engineer

Toronto, ON, Canada

Job type: Contract
Apply by: Oct 21, 2026
Posting language: English
Posted: Sep 21, 2026

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Original job description

Role: Offensive Security Engineer

Toronto, Hybrid

Job Description

As “Principal Consultant, Agentic AI Cybersecurity Engineer” you will work hands-on alongside our cybersecurity engineering and application security teams to build, operate, and advance the agentic AI systems that find, exploit, and remediate vulnerabilities end-to-end across our application and infrastructure estate. Operating at a principal engineer level, you will personally direct frontier AI models do discover vulnerabilities in production code, develop proof-of-concept exploits, generate and validate fixes, and integrate them into CI/CD pipelines with safe human-in-the-loop controls. You will also build reusable AI skills, prompts, and tooling that make agentic vulnerability management efficient and scalable across the estate. You will bring deep dual expertise across offensive and defensive security, penetration testing, and software engineering, and apply that fluency to push the boundaries of what is possible with agentic AI in a regulated enterprise environment.

What will you do?

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 application and infrastructure code, develop proof-of-concept exploits, and validate that AI-generated fixes close the underlying root cause.
Build and maintain the library of reusable AI skills, prompts, evaluation harness, and tooling that power agentic vulnerability discovery, triage, remediation, false positive analysis, and exemption workflows at scale.
Design and operationalize AI-driven false positive analysis and exemption processes to reduce manual triage burden and surface only actionable findings to development teams.
Conduct hands-on penetration testing and red team exercise against critical applications and infrastructure to validate defensive controls and agent-generated remediations.
Extend agentic remediation coverage across SAST, SCA, DAST, IAST, container, and server vulnerabilities, including the data and tooling needed to connect findings back to source.
Design agent prompting, guardrails, evaluation frameworks, and appropriate human-in-the-loop controls to ensure safe autonomous code changes, testing, and deployment.
Drive integration of agentic remediation into enterprise CI/CD pipelines (Github, Jenkins, etc.) across the deployment landscape.
Communicate technical design, risk trade-offs, and delivery progress clearly to senior stakeholders including CIO, CISO, 2LOD, and Audit functions.

Must-have:

10+ years hands-on experience across software engineering, offensive security, and defensive security at a principal engineer level, with demonstrated personal contributions to production codebases and published vulnerability research or penetration testing engagements.
Advanced technical proficiency in multiple programming language (Java, C#, C, C++, Python, JavaScript/TypeScript, .NET, Go) with proven ability to personally write, review, and remediate production code.
Deep fluency in vulnerability classes including memory safety, injection authentication and authorization flaws, cryptographic misuse, deserialization, race conditions, and supply chain attacks, with hands-on experience finding and exploiting each.
Extensive hands-on experience with penetration testing, red teaming, exploit development, reverse engineering, and secure code review against OWASP Top 10 and SANS 25, combined with defensive engineering experience building detection and remediation capabilities.
Extensive hands-on experience with application security testing tools (SAST, DAST, IAST, SCA), including tuning, false positive analysis, exemption workflow design, and enterprise vulnerability management at scale.
Deep technical fluency with agentic AI coding tools and frameworks (Claude, Devin, Copilot, Windsurf, Cursor, MCP, including prompt engineering, agent orchestration, reusable skill and tool design, guardrail design, and evaluation.
Strong architectural knowledge of modern CI.CD, container platforms (Docker, Kubernetes), cloud-native deployment patterns, and integration of security automation into developer workflows.

Nice-to-have:

Relevant security certifications (OSCP, OSCE, OSEP, GXPN, GWAPT, CISSP, or equivalent).
Experience in financial services or highly regulated industries with exposure to SOX, SOC1, and regulatory audit.
Public evidence of offensive capability: published CVEs, bug bounty track record, conference talks (DEFCON, Black Hat, Offensive Con, Recon), CTF placements, or open-source security tooling contributions.
Hands-on experience with enterprise vulnerability tooling (Tenable, Aqua, Snyk, BrightSec) and remediation at scale.
Demonstrated ability to advise senior technology leaders and deliver within complex, multi-stakeholder enterprise environments.

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More about this job

Responsibilities

You will architect and operationalize end-to-end agentic AI systems to detect, exploit, and remediate vulnerabilities across application and infrastructure estates. Additionally, you will build reusable AI skills and tooling to scale vulnerability management while conducting red team exercises to validate defensive controls.

Requirements

The role requires 10+ years of hands-on experience in software engineering, offensive security, and defensive security at a principal level. Candidates must possess deep technical fluency in multiple programming languages, vulnerability classes, and modern agentic AI coding frameworks.

Skills

Offensive Security
Defensive Security
Agentic AI
Penetration Testing
Software Engineering
Vulnerability Management
CI/CD Pipelines
Prompt Engineering
Red Teaming
Secure Code Review
Python
Java
Docker
Kubernetes
Cloud-native
Application Security

Visa sponsorship

Not detected in the job text

Keywords

Offensive Security Engineer
Agentic AI
Cybersecurity
Penetration Testing
Red Teaming
SAST
DAST
SCA
IAST
CI/CD
Docker
Kubernetes
Python
Java
JavaScript
TypeScript
Go
Prompt Engineering
Vulnerability Research
OSCP
CISSP
OWASP Top 10
SANS 25
Cloud-native
Reverse Engineering
Secure Code Review
Automation
Risk Management
Financial Services
Compliance

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