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Added 5 mins ago
Senior Security Engineer - Identity and Access Management
Marqeta
Remote, Canada
Full-time · Remote
We’re seeking an experienced Senior Security Engineer with a strong passion for Identity and Access Management (IAM) and proven expertise in cloud-native environments, particularly AWS. In…
Added 5 mins ago
Senior Product Engineer
Docebo
Remote, Canada
$102,800 to $137,000 CAD / year
Full-time · Remote
As a Senior Product Engineer, you bring strong expertise in either backend or frontend engineering alongside the ability and willingness to work across the full stack. You own features end…
Added 17 mins ago
Senior Full Stack Java Developer
GlobalVariable
Toronto, ON
Contract
Client: Ministry of Public and Business Service Delivery and Procurement (Government Services Integration Cluster)
Added 17 mins ago
Technical Sales Representative
TalentSphere Staffing Solutions
St. Catharines, ON
Full-time
You are comfortable speaking with an engineer about a technical requirement in one meeting and discussing pricing, timelines, and commercial terms with purchasing or senior management in…
Added 17 mins ago
Senior Data Engineer (Microsoft Fabric) | 6 months Contract | Vancouver-(Hybrid)
Central 1
Vancouver, BC
Contract
As a Senior Data Engineer you will be the subject matter expert in Microsoft Fabric to support the evolving data needs of Central 1. The Senior Data Engineer is responsible for designing,…
Added 34 mins ago
Level 2 Engineer
Avenir IT Inc.
Engineer, BC
Full-time
…dynamic team. As a Level 3 Technician, you will serve as a senior technical expert, adept at tackling the most formidable networking, infrastructure, and server dilemmas. Armed with astute…
Added 35 mins ago
Senior Software Engineer
Magnet Forensics
Canada
Full-time
We are looking for a Senior Software Engineer to join the Nexus team, responsible for delivering capabilities across Nexus and the broader Magnet One (M1) platform. You will help build and…
Added 35 mins ago
Infrastructure Architect
123Dentist
Toronto, ON
$150,000 to $175,000 CAD / year
Full-time
The Infrastructure Architect is the senior technical engineer for 123Dentist’s server, identity, cloud, and network infrastructure, combining deep hands-on design and engineering with…
Added 49 mins ago
Senior Project Manager – Port and Resource Infrastructure
AtkinsRéalis
Vancouver, BC
Full-time
In response to growing demands in the aviation sector, we are seeking a Senior Project Manager - Port and Resource Infrastructure to provide leadership, direction, and technical guidance to…
Added 49 mins ago
Senior Bridge Structural Engineer
WSP in Canada
St. Catharines, ON
Full-time
WSP is currently seeking a Senior Bridge Structural Engineer who has the interest and drive to join our team in Burlington, ON. In addition to the abundance of work in our local and…
Added 49 mins ago
Senior Project Manager – Port and Resource Infrastructure
AtkinsRéalis
Vancouver, BC
Full-time
In response to growing demands in the aviation sector, we are seeking a Senior Project Manager - Port and Resource Infrastructure to provide leadership, direction, and technical guidance to…
Added 50 mins ago
Senior Consultant - Microsoft Sentinel and Defender Engineer
EY
Winnipeg, MB · Toronto, ON · Quebec, QC · Saskatoon, SK · Halifax, NS · St. John's, NL · Saint John, NB · London, ON · Vancouver, BC · Victoria, BC · Edmonton, AB · Ottawa, ON · Dieppe, NB · ON · AB · Waterloo, ON · Calgary, AB
EY is seeking a senior, hands-on Microsoft security engineer to support the design, implementation, and continuous improvement of our Managed Detection and Response (MDR) services. You will…
Added 1 hour ago
Integrator engineer
Tata Consultancy Services
Montreal, QC
Full-time
…the country's leading organizations. As one of the largest IT services providers in Canada and globally, TCS is aiming to become the world's largest AI-led technology services company and…
Added 1 hour ago
Senior Structural Project Engineer
McMillen
Vancouver, BC
$114,000 to $187,000 CAD / year
Full-time
McMillen, Inc. is seeking a highly skilled Senior Structural Project Engineer with 8-12 years of experience focused on water resource-related work. The candidate will work in a variety of…
Added 1 hour ago
Senior L3 AI Engineer (M365, Copilot & LLM Platforms)
K&K Global Talent Solutions INC.
Quebec, QC
Full-time
The engineer will serve as a senior escalation point for complex technical issues, support enterprise deployment and administration, evaluate new AI capabilities, strengthen security and…
Added 1 hour ago
Senior Java Software Engineer
Iris Software Inc.
Toronto, ON
Contract
…India, the U.S.A., and Canada, Iris Software delivers technology services and solutions that help clients complete fast, far-reaching digital transformations and achieve their business…
Added 1 hour ago
Senior Data Engineer
Capgemini
Vancouver, BC
The involves leading and managing a team of data engineers, overseeing data engineering projects, ensuring technical excellence, and fostering collaboration with stakeholders. They play a…
Added 1 hour ago
Cybersecurity Engineer (System Engineering) - Multiple level
General Dynamics Missions System International
Calgary, AB
Full-time
General Dynamics Mission Systems–Canada is seeking a Cybersecurity Engineer to join our growing Land and Joint division. In this role, you will help address complex cybersecurity…
Added 1 hour ago
Senior/Lead Engineer - Agentic AI Development
FICO
Canada
Full-time
Come join our engineering team in a hands-on technical role at the heart of a new discipline: Harness Engineering. As AI coding agents take on more of the software lifecycle, the hard part…
Added 1 hour ago
Canada Customer Service Representative
Mouser
Kitchener, ON
Full-time
o Consistently meets or exceeds Senior Customer Service Representative performance metric requirements.
Added 1 hour ago
Development Security Specialist (Industrial Oil & Gas Applications)
Pengcorp Ltd.
Calgary, AB
Full-time
We are seeking a Senior Application Security & DevSecOps Engineer to establish, operationalize, and continuously improve our Secure Software Development Lifecycle (SSDLC) across enterprise,…
Added 1 hour ago
Engineering Director, Nuclear
WSP in Canada
Whitby, ON
Full-time
You will ensure department deliverables in projects or advisory services are produced in accordance with budget, schedule, quality, and technical requirements;
Added 1 hour ago
Engineering Director, Nuclear
WSP in Canada
Mississauga, ON
Full-time
You will ensure department deliverables in projects or advisory services are produced in accordance with budget, schedule, quality, and technical requirements;
Added 1 hour ago
Engineering Director, Nuclear
WSP in Canada
Toronto, ON
Full-time
You will ensure department deliverables in projects or advisory services are produced in accordance with budget, schedule, quality, and technical requirements;
Added 1 hour ago
Technical Consultant III (35732)
Myticas Consulting
Toronto, ON
Full-time
Technical Consultant III (Software Engineer, Senior/Lead)

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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