Shaeshan Kunalan
Cybersecurity Intern @Symptomstream
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WORK HISTORY
Cybersecurity Intern @Symptomstream
Hamilton, ON, CA
Performed security threat modeling on Symptom Stream’s RAG based health query platform, identifying direct and indirect prompt injection risks in patient-generated inputs.• Developed adversarial datasets containing malicious queries and prompt manipulation attempts to test LLM behaviour and discover potential exploitable weaknesses.• Applied OWASP LLM Top 10 best practices to enhance system safety, strengthening instruction layers and proposing retrieval level safeguards to reduce AI exploitation risks.
EDUCATION
McMaster University
Bachelor of Applied Science - BASc, Computer Science
Chinguacousy Secondary School
Ontario Secondary School Diploma
ABOUT SHAESHAN KUNALAN
Computer Science student with hands on experience in cybersecurity engineering, full stack development, and applied data analysis, driven by solving real world technical problems.My experience has been developed by building trust through execution such as analyzing real world systems, identifying vulnerabilities, and translating technical findings into practical improvements. From adversarial testing of LLM based systems to developing secure, performance optimized tools, I focus on creating solutions that are reliable, ethical, and impactful.Currently studying Computer Science at McMaster University and working as a Cybersecurity Intern at Symptom Stream, I contribute to securing RAG based health systems by identifying prompt injection risks, designing adversarial test pipelines, and applying privacy preserving techniques such as differential privacy. I take pride in turning technical insights into stronger safeguards, clearer documentation, and more resilient workflows.I believe strong technical leadership starts early through accountability, continuous learning, and a willingness to take initiative. Whether collaborating in high pressure team settings or working independently on complex problems, I aim to build systems people can trust and teams that grow stronger together.Core Strengths:• Cybersecurity analysis & adversarial testing• Secure full stack and systems development• Digital twins development• Firmware development• Clear technical communication and documentation• Team collaboration in fast paced, project driven environments
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