
Syed Jan Muhammad Zaidi
Verified Expert in Engineering
Cybersecurity Engineer and Developer
Melbourne, Victoria, Australia
Toptal member since February 5, 2026
Syed is a cybersecurity professional who helps enterprises and startups strengthen their application, cloud, and overall security posture. He blends hands-on testing, risk assessments, and remediation guidance to uncover real attack paths and improve defenses. Skilled across web, API, mobile, and cloud environments, Syed partners with engineering and leadership teams to translate technical findings into business risk and actionable fixes that improve long-term security maturity and resilience.
Portfolio
Experience
- ISO 27001 - 6 years
- Penetration Testing - 6 years
- Application Security - 6 years
- Risk Assessment - 6 years
- Security Audits - 6 years
- Python - 6 years
- Risk Analysis - 5 years
- Stakeholder Communication - 5 years
Preferred Environment
Linux, Windows, MacOS, Git, Slack, CI/CD Pipelines
The most amazing...
...success has been discovering a real-world RCE that became a published CVE and ranked in the global top 100 on Intigriti for reporting critical vulnerabilities.
Work Experience
Founder and Principal Security Consultant
Darkanon
- Founded and led a cybersecurity consulting practice delivering penetration testing, cloud security reviews, and risk assessments for startup and enterprise clients.
- Directed end-to-end security engagements, defining scope, threat models, and testing strategy while executing deep technical assessments across web, API, and cloud systems.
- Advised founders and engineering leaders on security posture, translating technical findings into business risk and prioritized remediation roadmaps.
- Delivered executive-level reports and technical deep dives that accelerated remediation and improved client security maturity.
- Validated complex attack chains and proof-of-concept (POC) exploits to demonstrate the real-world impact of vulnerabilities.
- Mentored junior consultants and established internal testing methodology aligned with OWASP, PTES, and MITRE ATT&CK.
- Supported presales and solution design discussions, shaping security assessment strategy and client engagement plans.
Supervisor Security Assessments
Trillium Information Security Systems
- Performed in-depth technical security assessments across web, API, mobile, and cloud platforms, identifying exploitable attack paths and high-risk misconfigurations.
- Evaluated AWS and Azure environments for privilege escalation, identity risks, and data exposure, providing remediation guidance and risk treatment recommendations.
- Executed penetration tests aligned with OWASP and PTES methodologies, validating real-world impact and supporting secure remediation planning.
- Reviewed CI/CD workflows and application deployments to identify security gaps in build, access control, and secret management processes.
- Developed POC exploits to demonstrate business impact and support prioritization of critical vulnerabilities.
- Collaborated with engineering teams to translate findings into risk treatment actions and practical remediation roadmaps.
- Supported the vulnerability management lifecycle by validating fixes, retesting systems, and tracking remediation progress across client environments.
- Assisted in aligning technical findings with risk management and compliance expectations across client engagements.
Vulnerability Assessment and Penetration Testing (VAPT) Engineer
Mutex Systems Pvt. Ltd
- Performed vulnerability assessments and penetration testing across web and mobile applications, identifying OWASP top 10 and logic-based security flaws.
- Executed security testing using tools such as Burp Suite, Metasploit, Nessus, and Nexpose to uncover exploitable vulnerabilities in client environments.
- Conducted static code analysis using Checkmarx and Fortify to identify insecure coding patterns and high-risk vulnerabilities.
- Supported the deployment and configuration of security tools, including Rapid7 Nexpose, Metasploit Pro, and AppSpider across client networks.
- Assisted in remediation validation by retesting identified vulnerabilities and confirming effectiveness of applied security fixes.
- Performed security assessments on Linux and Windows environments, identifying configuration weaknesses and patch gaps.
- Provided technical support and guidance to clients during remediation phases to improve overall security posture.
- Documented technical findings and contributed to structured vulnerability reports delivered to client stakeholders.
- Conducted basic network and infrastructure assessments to identify exposed services and misconfigurations.
Experience
Incident Response and Risk Assessment for Automotive Manufacturer
https://www.linkedin.com/posts/syed-jan-muhammad-zaidi_digitalguardian-proudmoment-cybersecurity-activity-7105892558563627009-cFKqI conducted rapid risk assessments across web applications and internal networks to identify potential entry points, privilege escalation paths, and data exposure risks. I also coordinated testing efforts with stakeholders to validate vulnerabilities, assess blast radius, and prioritize remediation actions aligned with business impact. I delivered structured findings and risk treatment recommendations to support containment, recovery, and longer-term security improvements.
This engagement strengthened incident response coordination, improved visibility into attack surface risks, and helped the organization implement more resilient security controls and monitoring practices.
I was awarded the Guardian of the Digital Realm for my outstanding performance on the project.
Discovery of Remote Code Execution Vulnerability (Published CVE)
https://nvd.nist.gov/vuln/detail/CVE-2024-3121End-to-end Security Assessment for Multi-tenant SaaS Platform
Cloud and Identity Security Assessment for Enterprise Environment
The project improved visibility into cloud risks and supported the client's broader security and compliance objectives.
CI/CD and Secure Development Pipeline Review
This engagement improved the client's confidence in their release process and reduced exposure to build-pipeline attacks.
Education
Bachelor's Degree in Computer Science
Bahria University - Islamabad, Pakistan
Certifications
Certified Ethical Hacker (Practical)
EC-Council
Certified Red Team Professional
Altered Security
InsightVM Certified Administrator
Rapid7
Penetration Testing, Incident Response, and Forensics
Coursera
Skills
Tools
Git, Slack, Metasploit, Nexpose, Checkmarx, Nessus, IBM Security AppScan
Paradigms
Penetration Testing, Secure Code Best Practices, DevSecOps, Security Orchestration, Automation, and Response (SOAR)
Platforms
Linux, Windows, Burp Suite, Kubernetes, MacOS, Amazon Web Services (AWS), Azure, Rapid7
Languages
Python, C++
Frameworks
Windows PowerShell
Other
CI/CD Pipelines, Information Security, ISO 27001, Application Security, Cloud Security, Security Audits, Web Application Security (Web AppSec), Mobile Security, Mobile App Security, AWS Cloud Security, Azure Cloud Security, OWASP ASVS, OWASP MASVS, OWASP Top 10, IT Security, Security, Threat Modeling, Stakeholder Communication, MITRE ATT&CK, GitHub Actions, Cybersecurity Operations, Vulnerability Management, Security Architecture, Risk Assessment, Strategy, Client Consulting, Technical Leadership, Risk Analysis, Network Security, Red Teaming, Vulnerability Assessment, AWS Identity and Access Management, Active Directory (AD), OWASP, Fortinet, Information Gathering, Malware Analysis, Social Engineering, Source Code Review, Incident Response, Patch Management, Security Operations Centers (SOC), Digital Forensics, Security Analysis, Scripting, Kubernetes Security
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