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Added 18 days ago
CE
Utility Application Technical Architect
Capgemini Engineering
Vancouver, BC
- Full-time
Added 18 days ago
MS
MS Dynamics 365 CE Developer
Millennium Software and Staffing Inc
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LT
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ND
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Added 18 days ago
MT
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Languages: Visual Basic, .NET, C++, C, Lab-View and Shell Scripting.
Added 19 days ago
Q
FY27 Intern - Low-Power AI, Audio, and Sensors Subsystem Engineering Internship - ASIC Firmware / Embedded - Canada (12 or 16 months)
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- Full-time
Added 19 days ago
A
Software Engineer
aivra.health
Toronto, ON
- $100,000 to $160,000 CAD / year
- Full-time
React, Angular, Node.js, .NET, or Spring Boot.
Added 1 month ago
G
Développeur(euse) logiciel / Software Developer - CSOL
Genetec
Montreal, QC
- Full-time
Added 19 days ago
EC
Applications Developer (Contract)
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- Contract
As a key member of the Applications Development team, the Applications Developer will be responsible for developing and maintaining our web applications. While each member of ECO Canada has…
Added 19 days ago
Security Engineer , AI Security
Amazon
Vancouver, BC
- 3+ years of programming in Python, Ruby, Go, Swift, Java, .Net, C++ or similar object oriented language experience
Added 19 days ago
I
Software Developer - Inteleshare
Intelerad
Canada
- Full-time
We are seeking a Software Developer to join the InteleShare team and contribute to Intelerad's secure, cloud-based medical image sharing platform. In this role, you will design and deliver…
Added 19 days ago
IG
Senior Full Stack Developer
Insight Global
Toronto, ON
- $60 to $67 CAD / hour
- Contract
Insight Global is looking for a Senior Full Stack Developer to build and enhance modern trading and investing applications. This role will focus on developing intuitive front-end…
Added 19 days ago
ES
Offensive Security Engineer
Epsilon Solutions Ltd.
Toronto, ON
- Contract
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…
Added 19 days ago
G
Développeur(euse) logiciel / Software Developer - CSOL
Genetec
Remote, Canada
- Full-time
- Remote
Added 19 days ago
Senior Software Engineer
Questrade Financial Group
Toronto, ON
Deep expertise in C#/.NET, Java, Node.js/TypeScript, Python, or C++ and surrounding development ecosystems.
Added 19 days ago
Software Engineer
Questrade Financial Group
Toronto, ON
Identify and address technical debt, proposing and executing improvements to system reliability and developer experience.
Added 19 days ago
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Node JS / NestJS Engineer (Backend)
BeachHead
Markham, ON
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Would You Like a Senior Backend Developer Who Can Build High-Performance APIs and Challenge Existing Architectures? Apply Now!
Added 19 days ago
HT
Industrial Software Validation|
Husky Technologies
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- Full-time
Proficiency in C#, Java, Python, and experience with .NET components
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MS Dynamics 365 CE Developer
Aptino, Inc.
Quebec, QC
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We are seeking an experienced MS Dynamics 365 CE Developer with strong expertise in developing, customizing, configuring, and integrating solutions on the Microsoft Dynamics 365 CE platform.
Added 19 days ago
D
Power Platform Developer
Dexian
Waterloo, ON
- $65 to $76 CAD / hour
- Contract
Design, develop, support applications using MS Power Platform, Node.js, PostgreSQL, and .NET
Added 19 days ago
MM
Senior Software Engineer
Mohawk Medbuy Corporation
Toronto, ON · Greater Toronto Area, Canada
- Full-time
Working knowledge of other programming languages including .NET (C#), Java
Added 19 days ago
IT - Senior Software Engineer
Mohawk Medbuy Corporation (MMC)
Burlington, ON · London, ON · Toronto, ON
Working knowledge of other programming languages including .NET (C#), Java
Added 19 days ago
VC
Senior Software Developer - AI Agents & Systems Design
Valsoft Corporation
Remote, Canada
- Full-time
- Remote
We are looking for a senior software developer who has made AI a structural part of how they build software - applying agentic systems, knowledge pipelines, and AI-connected tooling not as…
Added 19 days ago
Staff Site Reliability Engineer
KEV Group
Toronto, ON
Familiarity working with Microsoft Azure and .NET, including legacy .NET Framework applications and IIS, so reliability practices hold up across KEV's full stack and not just its newest…
Added 19 days ago
Staff DevOps
KEV Group
Toronto, ON
Comfortable supporting .NET Framework/.NET Core applications with React front ends running as SaaS in Azure.

Epsilon Solutions Ltd.

Offensive Security Engineer

Toronto, ON, Canada

Contract

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Job details

Job type: Contract
Apply by: Oct 15, 2026
Posting language: English
Posted: Sep 15, 2026

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

Architect and operate agentic AI systems to automate the end-to-end discovery, exploitation, and remediation of vulnerabilities across application and infrastructure estates. Conduct hands-on penetration testing and red team exercises to validate defensive controls and AI-generated fixes.

Requirements

Requires over 10 years of experience in software engineering and offensive/defensive security at a principal level. Must possess deep proficiency in multiple programming languages and extensive experience with AI coding tools and application security testing frameworks.

Skills

Offensive Security
Agentic AI
Penetration Testing
Software Engineering
Vulnerability Management
Red Teaming
Exploit Development
Secure Code Review
SAST
DAST
SCA
IAST
Prompt Engineering
CI/CD Integration
Reverse Engineering
Cloud-Native Security

Visa sponsorship

Not detected in the job text

Keywords

Agentic AI
Offensive Security
Penetration Testing
Red Teaming
Java
C#
C++
Python
JavaScript
TypeScript
.NET
Go
OWASP Top 10
SANS 25
SAST
DAST
IAST
SCA
Claude
Devin
Copilot
Windsurf
Cursor
MCP
Docker
Kubernetes
Github
Jenkins
OSCP
OSCE

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