01/24/2026 updated
100 % available
Cybersecurity Expert & Penetration Tester
Sabac, Serbia
Only remote
High School GraduateAbout me
Penetration tester and bug bounty hunter acknowledged by U.S. Department of Defense for disclosing number of vulnerabilities via Hackerone bug bounty platform. I have mainly worked via Upwork. Since 2022 I am part of Synack Red Team where I do bug bounties in my spare time to keep my skills sharp.
Active DirectoryApplication Programming Interfaces (APIs)Penetration TestingComputer SecurityMobile Application SoftwareNetwork ArchitectureOWASPRed Team (Cyber Security)Risk AnalysisSecurity TestingSimulationsVulnerabilityWeb ApplicationsSecurity AuditsCarry Out Assessments
Web & API Penetration Testing
Expertise in OWASP Top 10 and PTES methodologies for comprehensive web application and API security assessments
Mobile Application Security Testing
Specialized knowledge in mobile penetration testing using OWASP Top 10 and PTES frameworks
Network Penetration Testing
Advanced skills in network infrastructure security assessment and vulnerability identification
Active Directory Security Assessment
Comprehensive evaluation of Active Directory environments for security vulnerabilities
Vulnerability Research & Analysis
Advanced capability in identifying, analyzing and documenting security vulnerabilities
Red Team Operations
Experience in simulating realistic attack scenarios and adversarial tactics
Cyber Threat Intelligence
Research and analysis of cyber threats with contribution to intelligence reporting
Risk Assessment & Management
Cybersecurity maturity assessments and risk-based security evaluations
Expertise in OWASP Top 10 and PTES methodologies for comprehensive web application and API security assessments
Mobile Application Security Testing
Specialized knowledge in mobile penetration testing using OWASP Top 10 and PTES frameworks
Network Penetration Testing
Advanced skills in network infrastructure security assessment and vulnerability identification
Active Directory Security Assessment
Comprehensive evaluation of Active Directory environments for security vulnerabilities
Vulnerability Research & Analysis
Advanced capability in identifying, analyzing and documenting security vulnerabilities
Red Team Operations
Experience in simulating realistic attack scenarios and adversarial tactics
Cyber Threat Intelligence
Research and analysis of cyber threats with contribution to intelligence reporting
Risk Assessment & Management
Cybersecurity maturity assessments and risk-based security evaluations
Experience
Professional experience5 - 10 years
Freelancer since2014
Languages
EnglishFluent
Project history
Performed continuous web application, API, mobile, and network penetration testing in accordance with OWASP Top 10 and PTES. Collaborated within vetted red team environment focused on high-impact, real-world attack scenarios.
Provided independent penetration testing services covering web applications, APIs, mobile applications, and network environments. Executed engagements in alignment with OWASP Top 10 and PTES standards across diverse client base.
Led web application, API, mobile, and network penetration testing activities aligned with OWASP Top 10 and PTES. Contributed as cybersecurity subject-matter expert within multi-national critical infrastructure protection program.