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Themesoft Inc.

CyberSecurity Specialist

Toronto, ON, Canada

Contract

Within 25 km of Vaughan · About 10.6 km from the city centre

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Job details

Job type: Contract
Apply by: Nov 19, 2026
Posted: Oct 20, 2026

Original job description

Position: CyberSecurity Specialist

Location: North York, ON – Hybrid

Responsibilities

Build agentic AI security harnesses, prototypes, and POCs for new cyber capabilities.
Research AI Security, Agentic AI, Application Security, quantum/PQC, blockchain, and other emerging technologies.
Develop and integrate agents, LLMs, APIs, security tools, automation, and test environments.
Evaluate new cybersecurity products and startups through hands-on testing, benchmarking, and technical due diligence.
Validate vendor claims and assess security, scalability, integration complexity, and enterprise applicability.
Help transition successful research prototypes toward operational use.
Present technical findings and recommendations to engineering, security leadership, and investment stakeholders.

Qualifications

Experience with LLMs, AI agents, tool calling, orchestration frameworks, APIs, cloud, containers, and security automation.
Strong knowledge of Application Security, AI Security, vulnerability research, threat modeling, Secure development, Network security, infrastructure Security, Security Architecture and other security domains.
Demonstrated ability to design experiments, build prototypes, and evaluate emerging technologies.
Strong technical writing and presentation skills.
Research papers or presentations at recognized cybersecurity, AI, or systems forums.
Experience with AI red teaming, autonomous penetration testing, agent security, or AI-native security tooling.
Cybersecurity startup, founder, or early-stage product experience.
Experience pitching to venture capital, corporate venture teams, accelerators, or investment stakeholders.
Patents, open-source security projects, vulnerability research, or other demonstrated technical innovation.
Certifications : CISSP, OSCP, CSSLP or equivalent

Skills

AI Security & Agentic AI Development

Experience with LLMs, AI agents, tool calling, orchestration frameworks, APIs, and security automation

Ability to build agentic AI security harnesses, prototypes, and proof-of-concepts

Knowledge of AI Security and emerging AI-native security technologies

Security Research & Emerging Technology Evaluation

Research experience in Application Security, AI Security, Quantum/PQC, Blockchain, and other emerging technologies

Ability to design experiments, build prototypes, benchmark products, and perform technical due diligence

Experience validating vendor claims and assessing enterprise applicability

Software Engineering & Security Architecture

Strong development skills in Python (most important), along with Java, Node.js, Go, and C/C++

Hands-on experience integrating APIs, cloud platforms, containers, and automation frameworks

Deep understanding of Application Security, Threat Modeling, Secure Development, Network Security, Infrastructure Security, and Security Architecture

Regards

Patrick Fernandez

Talent Acquisition Group - Strategic Recruitment Manager

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More about this job

Responsibilities

Build and integrate agentic AI security prototypes, harnesses, and proof-of-concepts, and research emerging areas such as AI security, application security, quantum/PQC, and blockchain. Evaluate cybersecurity products through hands-on testing and technical due diligence, help move successful prototypes toward operational use, and present findings to technical and investment stakeholders.

Requirements

The role requires experience with LLMs, AI agents, APIs, orchestration, cloud, containers, and security automation, along with strong knowledge across application, AI, network, infrastructure, and architectural security. Candidates should be able to develop prototypes and evaluate emerging technologies; relevant research, innovation, startup, investment-pitching, or AI red-teaming experience and certifications such as CISSP, OSCP, or CSSLP are also cited.

Skills

AI Security
Agentic AI
Large Language Models
Application Security
Security Research
Python
Java
Node.js
Go
C/C++
Threat Modeling
Secure Development
Network Security
Security Architecture
Cloud Platforms
Security Automation

Visa sponsorship

Not detected in the job text

Hiring contact

Patrick Fernandez

Keywords

AI Security
Agentic AI
Large Language Models
Tool Calling
Orchestration Frameworks
APIs
Security Automation
Application Security
Quantum Computing
Post-Quantum Cryptography
Blockchain
Python
Java
Node.js
Go
C/C++
Cloud Platforms
Containers
Threat Modeling
Secure Development
Network Security
Infrastructure Security
Security Architecture
Vulnerability Research
AI Red Teaming
Technical Due Diligence
CISSP
OSCP
CSSLP

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