I have a Bachelor of Computer Science and 2 years of experience in Security Testing Websites and Bug Bounty field, core domain is to bypass security and report to a respective organization with responsible disclosure policy and I also provide QA service.
My advantage is a deep understanding of website workflow This allows me to make a way to give as many bypasses to the security of web apps as I can of any complexity. When developing a project from scratch, I can create personas and based on them to design an interactive prototype and UI, as well as improve the product by searching out.
Why should you work with me?
✅ Reviews confirming my words
✅ Portfolio shows my work
MY SKILLS:
🔸 Security Penetration Testing
🔸 Usability testing
🔸 Web application design
🔸 Mobile application design
🔸 Web application UI Development
🔸 Native Mobile application UI Development
THE Organisation I WORKED FOR (as Security Researcher):
✮ Hackerone
✮ Bugcrowd
✮ MatLab
✮ Microsft
✮ Private Org.
THE Organisation I WORKED FOR (as Web and Mobile App Dev. ):
✮ Freelancer
✮ Fiverr
✮ Private Org.
THE TOOLS I USE:
🔹 Adobe XD
🔹 Android Studio
🔹 XCode
🔹 Burp Suite
🔹 Python
MY TIMEFRAMES:
Depends on the work specifically.
🇵🇰 9 am - 6 pm (GMT+5), Monday – Friday (except Holidays).
Thanks for reading and your time.
KEYWORDS:
UX, UI, User Flow, Layout, User Experience, Usability testing, Landing Page Design, Dashboard design, Web application design adobe Photoshop, Landing Page, UX/UI, UI Design for a website, UX designer for website, Web design, Web designer, Graphic design, Graphic designer, Figma Site Mockup, user interface design, UX research, responsive web design, website wireframing, mobile UI design, UI/UX design for a web app, convert website to app, needed, UI/UX, NDA, webpages Design, Security Testing, Penetration Testing, Bug Bounty.
Application Security
Usability Testing
Web Development
QA Testing
Web Testing
Security Testing
Penetration Testing
Manual Testing
Functional Testing
Mobile App Testing
Security Analysis
Vulnerability Assessment
Web Application Security
Abdullah A.
Islamabad, Pakistan
$40/hr
4.6
86 jobs
Top Rated Cybersecurity Consultant with 65+ successfully completed Upwork projects and enterprise cybersecurity consulting experience.
Security is not just about finding vulnerabilities. It is about understanding how systems, applications, and infrastructure work together and identifying the weaknesses that matter most.
I help businesses assess, design, and strengthen their security posture through independent cybersecurity consulting, technical security assessments, and practical engineering solutions. Whether you are securing a web application before launch, reviewing source code, evaluating network security, validating cryptographic implementations, or assessing enterprise security architecture, my goal is to provide clear, actionable recommendations rather than generic reports.
My work spans application security, network security, cryptography, secure code review, security architecture, and infrastructure security. I also work on advanced security engineering projects involving software protection, compiler-based obfuscation, reverse engineering, and cryptographic implementation analysis where specialized expertise is required.
My professional experience includes enterprise cybersecurity consulting, solution evaluation, technical architecture reviews, vendor assessments, security strategy, and security engineering. I have also completed freelance projects covering penetration testing, secure code review, cryptography research, security assessments, network security, enterprise security, and technical consulting.
Areas I can help with include:
• Web Application and API Security Assessments
• Penetration Testing and Vulnerability Assessment
• Source Code Security Review
• Security Architecture and Design Review
• Network and Infrastructure Security Assessment
• Cryptography and Encryption Review
• Reverse Engineering and Software Protection
• LLVM Obfuscation and Security Engineering
• Security Tool and Technology Evaluation
• Risk Assessment and Technical Security Consulting
I believe good security should be practical, measurable, and aligned with business objectives. I approach every engagement with the same mindset: understand the problem, validate the risks, provide technically sound recommendations, and deliver work that clients can trust and confidently implement.
If you are looking for a dependable cybersecurity consultant who combines technical depth with practical, business-focused security advice, I would be glad to discuss your project.
Penetration Testing
Network Security
Digital Forensics
Computer Network
Python
Java
Linux System Administration
Algorithm Development
Cisco Certified Network Associate
Security Analysis
Network Penetration Testing
Risk Analysis
Cryptography
Security Assessment & Testing
Hassan S.
Karachi, Pakistan
$15/hr
5.0
4 jobs
OSCP-certified penetration tester. Manual web app, API, network and cloud pentesting for SOC 2, PCI DSS and HIPAA audits, with a report your developers can actually fix from and a free retest after you patch.
Most security reports end up in a drawer. Mine don't, because your developers can read them, understand what's broken, and fix it.
I have been hunting real vulnerabilities since 2018, first through bug bounty programs on HackerOne and Bugcrowd, then testing web apps, APIs, mobile apps and networks across the financial and healthcare sectors. What I care about is the same thing your future attacker cares about: the flaw a scanner skips right past.
That is the difference between what I do and an automated tool. Scanners are great at noise. I am here for the findings that actually matter, the ones an attacker could chain together into a breach, and I show you exactly how, step by step.
WHAT I TEST
🔍 Web Application Penetration Testing
OWASP Top 10 and beyond: authentication and session flaws, IDOR and broken access control, SSRF, RCE, injection, file upload abuse, and the business logic bugs no scanner understands.
🔌 API Penetration Testing
REST and GraphQL, JWT and OAuth flows, BOLA and BFLA, rate limiting and abuse cases, and the undocumented endpoints your team forgot to lock down.
🖧 Network Penetration Testing
Internal and external, Active Directory, privilege escalation, lateral movement, and the exposed services that should never have been reachable.
📱 Mobile Application Penetration Testing
Android and iOS, static and dynamic analysis, insecure storage, certificate pinning bypass, and the backend APIs behind the app.
☁️ Cloud Security Assessment
AWS, Azure and GCP configuration and IAM review, Docker and Kubernetes security, and the cloud paths that turn a small bug into full account takeover.
🌐 Asset Discovery and OSINT
Subdomains, exposed services, public facing assets, leaked credentials, and what attackers already know about you.
COMPLIANCE AND AUDIT SUPPORT
If you have a SOC 2 Type II audit, a PCI DSS assessment, a HIPAA security review, or an enterprise customer security questionnaire on your calendar, I scope the test so it satisfies the requirement and hand you evidence your auditor accepts. I work to OWASP, NIST CSF, PTES and OSSTMM methodology, and I have delivered this work in the financial and healthcare sectors.
WHAT YOU GET
📑 A report you can act on. Clear reproduction steps, full request and response data, annotated proof of concept screenshots, CVSS ratings, and a plain English explanation of what each finding means for your business. No 200 page scanner dump.
🛠️ Remediation guidance. Practical fixes your engineers and your decision makers can both follow. You will know what to fix, why, and in what order.
🔁 A free retest. After you patch, I test again at no extra cost to confirm the fixes hold and no new paths opened.
📄 An executive summary written for the people who sign off, not just the people who code.
TOOLS
Burp Suite Pro, Nessus, Nmap, Metasploit, SQLMap, OWASP ZAP, MobSF, Frida, Wireshark, Kali Linux, and custom scripts I have written over years of engagements. Tools find the noise. The findings that matter come from manual work.
HOW I WORK
1. Scoping call. We agree on targets, approach (black box, grey box or white box), rules of engagement and timeline.
2. Recon and mapping. I map your real attack surface before I touch anything.
3. Manual testing and exploitation. Automated scans for coverage, hands on testing for the findings that count.
4. Validated findings. I safely confirm every issue and rate real business impact, not theoretical severity.
5. Report and walkthrough. You get the document, plus a call to talk your team through it.
6. Retest. Free, once you have patched.
BACKGROUND
OSCP (Offensive Security Certified Professional), Certified AppSec Practitioner, and Rapid7 InsightVM Certified Administrator. Former Security Analyst at Dig8Labs, where I served as resident engineer at a major bank, leading vulnerability remediation across infrastructure and applications. Bug bounty hunter on HackerOne and Bugcrowd since 2018.
First time commissioning a pentest? Send me a message with a couple of lines about your project. I will help you scope it properly, tell you honestly whether and how I can help, and give you a fixed price before you commit to anything.
Application Security
Penetration Testing
Security Assessment & Testing
Vulnerability Assessment
Security Testing
Web App Penetration Testing
Kali Linux
Web Application Security
Cloud Security
Network Penetration Testing
OWASP
Risk Assessment
API Testing
Ethical Hacking
Network Security
NIST Cybersecurity Framework
SOC 2
PCI DSS
HIPAA
Information Security
Mudasser H.
Islamabad, Pakistan
$20/hr
5.0
13 jobs
✅ 5+ Years of Experience | ⭐ Cybersecurity Certified Professional | 🌍 Trusted by clients Globally
| 🏆 Supported Security Projects for Fortune 500 Organizations
I help businesses identify security risks, strengthen their defenses, and meet compliance requirements through practical cybersecurity services.
Whether you need a one-time security assessment or ongoing security support, I focus on providing clear findings, practical recommendations, and solutions that fit your business.
Services I Offer
• Cybersecurity Consulting
• Vulnerability Assessment & Penetration Testing (VAPT)
• Web, Mobile & API Security Testing
• AI Security Testing & Guardrails
• Cloud Security Assessments
• Security Architecture Reviews
• Risk Assessments & Risk Mitigation
• Third-Party Vendor Security Assessments
• Product Security Reviews
• DevSecOps & CI/CD Security
• Digital Forensics & Incident Investigation
• Open Source Intelligence (OSINT)
• Background Checks & Digital Footprinting
• HUMINT, GEOINT, SOCMINT & FININT Investigations
• Deep & Dark Web Investigations
• Data Breach & Credential Leak Monitoring
• Security Awareness Training
• Security Operations Center (SOC) Support
• SIEM Deployment, Integration & Management
• EDR, XDR & IDR Deployment (Rapid7, SentinelOne, Kaspersky, Wazuh and more)
• Compliance Support (ISO 27001, NIST, GDPR, NCA)
If you're looking for a cybersecurity professional who communicates clearly, delivers practical results, and takes security seriously, I'd be happy to discuss your project and how I can help.
#CyberSecurity #PenetrationTesting #EthicalHacking #VAPT #WebSecurity #ApplicationSecurity #NetworkSecurity #CloudSecurity #RedTeam #OSINT #DigitalForensics #ThreatIntelligence #SIEM #SOC #DevSecOps
Application Security
Cybersecurity Management
Penetration Testing
Vulnerability Assessment
Security Assessment & Testing
Ethical Hacking
Information Security Audit
Information Security Governance
Threat Detection
Malware Removal
Information Security
Cloud Security
Jawad Saqib B.
Rawalpindi, Pakistan
$40/hr
4.8
51 jobs
✅ Amongst the Top 1000 hackers worldwide
Web Pentesting | Mobile App Pentesting | API Pentesting | Vulnerability Assessment | Python & Bash Automation
I work with companies to make their digital assets secure and provide solutions to enhance their security parameters.
I create cybersecurity content on hackingloops.com explaining the practicalities and how-tos of the vulnerability and exploitation
Part-time bug bounty hunter at Bugcrowd & Intigriti.
Feel free to contact me for your queries and security-related issues.
Information Security Consultation
Vulnerability Assessment
Information Security
Malware Removal
Cybersecurity Management
Security Assessment & Testing
Penetration Testing
Network Security
Cloud Security
Security Engineering
Mobile App Testing
Website Security
Security Analysis
Python
Code Review
Khurram S.
Rawalpindi, Pakistan
$10/hr
5.0
32 jobs
As a Cyber Security Analyst, Research Analyst and Technical Writer, Penetration Tester, SIEM/SOC Engineer, and Information Security Specialist, I represent a range of expertise in the cybersecurity sector, safeguarding organizations against intricate digital threats and ensuring the integrity, confidentiality, and availability of critical data. My career is dedicated to developing cybersecurity strategies that align seamlessly with corporate objectives, enhancing robust strategic planning, thorough risk assessments, and implementing detailed security policies and compliance frameworks. My extensive knowledge spans GDPR, HIPAA, NIST, and ISO 27001 standards, reflecting advanced capabilities in threat detection, incident response, and network and IT infrastructure protection.
Certifications and Professional Acumen:
My professional stature is backed by prestigious knowledge based certifications experience acquired during my bachelors such as CISSP, CISM, and CEH. With Google certifications and ISO/IEC 27001 Information Security Associate™ certifications acquired, marking me as a vanguard in the field of cybersecurity.
Core Competencies for Enhanced Digital Presence:
• Cybersecurity Strategy and Digital Risk Management: Renowned for formulating cybersecurity strategies intricately linked to business goals, I excel in performing exhaustive risk assessments, and vulnerability analyses, and leveraging threat intelligence for top-tier risk mitigation solutions. My strategic approach addresses immediate security challenges and forecasts potential future threats to keep businesses resilient against all odds.
• Security Policy, Standards, and Compliance Mastery: With a solid track record in crafting and enforcing security policies and standards, my expertise in adhering to GDPR, HIPAA, NIST, and ISO 27001 compliance is exceptional. I guide organizations through stringent audits and security validations, surpassing industry standards.
• Advanced Threat Detection and Incident Response: I specialize in advanced threat detection techniques and SIEM technology, designing sophisticated incident response strategies. My meticulous documentation and communication of breaches facilitate a cohesive response to cybersecurity incidents, enhancing organizational preparedness.
• Network and Infrastructure Security Expertise: As a seasoned Network Security expert and adept Pentester, my proficiency in managing firewalls, IDS/IPS systems, and conducting penetration tests fortifies organizational defenses against cyber threats.
• Comprehensive Security Technologies Utilization: Skilled in deploying a wide array of security tools, from antivirus solutions and endpoint protection to encryption technologies and multi-factor authentication systems, I bolster organizational security measures and champion essential security practices.
• Dedication to Continuous Monitoring and Cybersecurity Evolution: Committed to ongoing security monitoring and keeping pace with emerging trends and threats, I ensure that all stakeholders remain well-informed and equipped to proactively tackle new challenges.
In the contemporary digital ecosystem, a robust cybersecurity posture is indispensable. Partnering with my expertise enables organizations to establish a formidable defense system that not only secures their digital assets but also solidifies their reputation as leaders in cybersecurity resilience. Elevate your cybersecurity stance with a visionary adept at navigating the complexities of digital security and ensuring the safeguarding of your organization’s future.
Information Security
Network Security
Vulnerability Assessment
Penetration Testing
Security Policies & Procedures Documentation
System Security
Cybersecurity Monitoring
Risk Management
Cloud Security
Reverse Engineering
Information Security Awareness
Information Security Governance
Ethical Hacking
Technical Writing
Content Writing
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