Hire the Best Penetration Testers in Karachi, PK

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Hassan S.

Karachi, Pakistan

$15/hr
5.0
3 jobs

Your applications and infrastructure are only as secure as the last person who tried to break in. I make sure that person is me — before a real attacker gets there. I'm an offensive security specialist with 7+ years in ethical hacking, and I've led hundreds of penetration tests, security audits, and red team engagements — for multinational enterprises with thousands of assets and for startups that need to prove security to win their first big customer. My focus is hands-on, manual exploitation: finding the flaws automated scanners miss, then showing you exactly how an attacker would chain them into real damage. Every engagement ends with a report your developers can actually act on — not a 200-page scanner dump. Here's how I help: 🔍 Penetration Testing Comprehensive manual + automated testing of web apps, APIs, mobile apps, servers, and networks (internal and external). I work with industry-standard tooling — Burp Suite Professional, Nessus — alongside custom scripts refined across past engagements to dig deeper than off-the-shelf tools allow. 📑 Professional Reporting & Risk Analysis A clear, professionally written report for every finding, including step-by-step exploitation methodology, full HTTP requests/responses, annotated proof-of-concept screenshots, standardized CVSS v4.0 ratings, and the real business impact tied to each affected asset. 🛠️ Remediation Guidance Tailored, best-practice fixes for every issue — explained so both your engineers and your decision-makers understand the risk and the path to closing it. 🌐 Asset Discovery & Mapping Active and passive reconnaissance to reveal your true attack surface: subdomain enumeration, port and service discovery, and identification of exposed public-facing assets. 🔁 Free Retest & Validation A complimentary re-test after you've remediated — verifying fixes hold and confirming no alternate exploitation paths remain. 🕵️ OSINT Reconnaissance Open-source intelligence to surface what attackers already know about you: breached credentials, leaked documents, exposed metadata, and chatter on forums and the dark web — backed by access to a curated repository of 4+ billion records. 🤝 Pre-Engagement Consulting Scoping sessions to define your Scope of Work, choose the right engagement type (black-box, grey-box, or white-box), set access requirements, and guide first-time clients through the process end to end. 🎯 Post-Engagement Debrief A walkthrough of every finding — clarifying technical impact in plain language, prioritizing by real-world risk, and mapping out how to strengthen your security posture going forward. If you're protecting customer data, preparing for a compliance or vendor security review, or simply want to know where you stand before someone else finds out — let's talk. Send me a message with a bit about your project and I'll tell you honestly how I can help.

  • Penetration Testing
  • Security Assessment & Testing
  • Information Security
  • Network Penetration Testing
  • Vulnerability Assessment
  • Web App Penetration Testing
  • Security Testing
  • Cybersecurity Management
  • Kali Linux
  • Web Application Security
  • Cloud Security
  • Black Box Testing
  • Information Security Awareness
  • OWASP
  • Risk Assessment
  • WordPress Security
  • Bug Bounty
Hassan J.

Karachi, Pakistan

$100/hr
5.0
38 jobs

Welcome to the profile of a renowned ethical hacker and bug bounty hunter, ranked among the top 400 hackers on Bugcrowd. With a remarkable portfolio that includes accolades from industry titans such as Samsung, Binance, cPanel, and F5, I bring unrivalled expertise and a track record of accomplishment to the table. What I Offer: Ethical Hacking Excellence: With extensive technical skills and an unwavering resolve to find vulnerabilities, I specialise in detecting and addressing security threats across a wide range of platforms and situations. Whether it's web apps or mobile apps, I have the expertise and knowledge to effectively strengthen your digital defences. Bug Bounty Mastery: As an experienced bug bounty hunter, I have gained the trust of major corporations by my careful methodology and unrelenting dedication to perfection. My contributions have been recognised by reputable businesses such as Samsung, Binance, cPanel, F5, and many others, demonstrating my ability to generate results that exceed expectations. Beyond bug finding, I provide full security consulting services that are tailored to your individual requirements. Whether you need strategic advice on On cyber security best practices or hands-on support in remediation efforts, I deliver practical insights to help you protect your assets and reduce any threats in advance. Why Choose Me: Trusted by Industry Leaders: My track record of accomplishment speaks for itself, with accolades from top-tier firms demonstrating my knowledge and professionalism. When you work with me, you will receive access to the same degree of expertise that has gained the trust of industry leaders globally. Proactive Approach: I believe in staying one step ahead of cyber threats by taking a proactive approach to security. By conducting extensive evaluations and executing effective mitigation measures, I assist customers in reducing potential hazards before they become full-fledged catastrophes. Collaborative collaboration: I see each client interaction as a collaborative collaboration with the goal of mutual success. I prioritise open communication, openness, and reactivity to guarantee that your individual demands and objectives are precisely satisfied. Let us strengthen your security posture: In an era of rising cyber dangers, investing in strong cyber security measures is critical for protecting your company's integrity and reputation. Partner with me to strengthen your defences, reduce potential risks, and remain ahead of the curve in today's ever-changing threat landscape. Contact me today to discuss how we help improve your security posture and secure what matters most to you.

  • Penetration Testing
  • Security Assessment & Testing
  • Ethical Hacking
  • Vulnerability Assessment
  • Application Security
  • Security Testing
  • System Security
  • Security Analysis
  • Web Application Security
  • OWASP
  • Bug Bounty
  • Web Testing
  • Information Security Audit
Muhammad S.

Karachi, Pakistan

$25/hr
5.0
87 jobs

🔐 Helping Startups & Enterprises Eliminate Critical Security Risks—Before Hackers Exploit Them I’m a Certified Penetration Tester with 7+ years of offensive security experience. I specialize in securing web apps, mobile apps, APIs, and cloud infrastructure to help you prevent breaches, stay compliant, and protect your users. 🧰 My Security Expertise: Web App Pentesting – OWASP Top 10, SQLi, XSS, CSRF, SSRF, logic flaws Mobile App Security – iOS/Android reverse engineering, insecure storage, API exposures API & Cloud Security – REST, SOAP, GraphQL; AWS/Azure/GCP misconfigurations Manual Testing & Reporting – Clear, developer-friendly bug reports (JIRA, Trello, Agile teams) 🏆 Success Stories: ⚠️ Identified 50+ critical vulnerabilities in a fintech app, preventing a $500K breach 🔒 Secured 100+ applications used by 500K+ users, reducing risk by 80% post-audit 📄 Delivered 100+ penetration testing reports with prioritized, actionable fixes 📜 Certifications: 🛡️ OSCP – Offensive Security Certified Professional 🕵️ CEH – Certified Ethical Hacker 🔐 CompTIA Security+ 💡 Why Clients Choose Me: ✅ Actionable Reporting – Prioritized issues + clear developer guidance ⚡ Fast Turnaround – Critical bugs reported within 24 hours 🛡️ Confidential & Compliant – Full NDA, encrypted communications, secure tool usage 🌍 Trusted by – YC-backed startups, Fortune 500s, global security firms 🚀 Ready to Secure Your App? Click “Invite to Job” and get: ✅ A free 15-min consultation ✅ A sample penetration testing report ✅ Critical issues reported in just 24 hours

  • Penetration Testing
  • Security Assessment & Testing
  • Network Penetration Testing
  • Vulnerability Assessment
  • Web App Penetration Testing
  • Cloud Security
  • Internet Security
  • Security Analysis
  • Security Engineering
  • Information Security Audit
  • NIST Cybersecurity Framework
  • Red Team Assessment
  • Cybersecurity Monitoring
  • Certified Information Systems Security Professional
Ali Hassan G.

Karachi, Pakistan

$35/hr
5.0
34 jobs

"I help businesses secure their digital infrastructure through professional penetration testing, security audits, and incident response support.” With over 10 years of experience in Ethical Hacking, I have successfully led and executed hundreds of security audits, penetration tests, and red team engagements for clients ranging from multinational corporations with thousands of assets to nimble startups seeking a security edge in their competitive landscape. My expertise lies in hands-on offensive security, vulnerability assessment, and deep knowledge of both legacy and modern technology stacks—understanding their common pitfalls and security flaws. Below is an overview of the services I offer: ✅Penetration Testing Engagement Comprehensive manual and automated testing of websites, applications, servers, and infrastructure within the defined scope. This includes internal and external network testing, performed using industry-leading tools such as Burp Suite Professional, Nessus, and custom-developed scripts and utilities tailored from previous engagements. ✅Professional Reporting & Risk Analysis A detailed, professionally written report outlining each identified vulnerability, complete with: -Step-by-step exploitation methodology - Full HTTP requests/responses - Screenshots and Proof-of-Concepts - Standardized "CVSS v4.0" risk ratings - Business impact and affected asset ownership ✅Remediation Advice & Guidance Actionable, tailored remediation guidance for every identified security issue. I provide clear explanations of the risk associated with each finding and offer best-practice solutions to mitigate or eliminate the threat. ✅Asset Discovery & Mapping Active and passive reconnaissance to determine the breadth of your digital footprint. Includes: -Subdomain enumeration -Port and service discovery -Identification of public-facing assets susceptible to external threats ✅Free Retest & Validation Included in the service is a complimentary re-evaluation of previously identified vulnerabilities to verify that remediation efforts have been successfully implemented and that no alternate exploitation paths exist. ✅OSINT Reconnaissance Extensive Open-Source Intelligence (OSINT) gathering to identify publicly available data that could pose a threat, including: -Breached email addresses and associated credentials -Data circulating on forums or the dark web -Leaked documents or sensitive metadata Access to a curated repository of over 4 billion records enables comprehensive visibility into your company’s exposure. ✅Pre-Engagement Briefing I am available for consultation sessions to: -Define and refine the Scope of Work (SoW) -Determine the appropriate engagement type (black-box, white-box, or grey-box) -Establish access requirements and test scheduling -Provide guidance for organizations conducting a penetration test for the first time ✅Post-Engagement Debriefing After the assessment, I offer detailed walkthrough sessions of the findings. These sessions include: -Clarification of technical findings and their real-world impact -Prioritization of vulnerabilities based on risk -Strategic recommendations to strengthen your overall security posture With a strong track record of delivering high-impact, actionable security insights, I am committed to helping organizations identify, understand, and mitigate their risks in today’s complex threat landscape.

  • Penetration Testing
  • Security Assessment & Testing
  • Information Security
  • Network Security
  • Vulnerability Assessment
  • Web App Penetration Testing
  • Security Testing
  • Security Analysis
  • ISO 27001
  • Content Writing
  • Cybersecurity Management
  • API Testing
  • Web Testing
  • Metasploit
  • Kali Linux
muhammad A.

Karachi, Pakistan

$25/hr
4.6
7 jobs

I have identified and helped fix 100+ critical vulnerabilities including SQLi, XSS, IDOR, and cloud misconfigurations, improved security posture by 𝟳𝟬%, reduced attack surface, and delivered 0-day level findings with full remediation guidance. ➤ 𝗘𝗫𝗣𝗘𝗥𝗧𝗜𝗦𝗘 ✅ Web Penetration Testing (SAST/DAST) ✅ Static & Dynamic Security Analysis ✅ Secure Source Code Review ✅ API Penetration Testing ✅ Mobile App Pentesting (Android/iOS) ✅ Desktop / Thick Client Application Pentesting ✅ Internal & External Network Penetration Testing ✅ Wireless Security Testing ✅ Active Directory Security Assessment ✅ Privilege Escalation Testing ✅ Red Teaming & MITRE ATT&CK BAS Activities ✅ Phishing Assessment & Security Awareness Testing ✅ OSINT & Reconnaissance ✅ Cloud Penetration Testing & Cloud Security Audit ✅ AWS / Azure / GCP Security Assessment ✅ DevSecOps Security Implementation ✅ CI/CD Pipeline Security ✅ Docker & Kubernetes Security ✅ Infrastructure Hardening ✅ Secure Configuration Review ✅ AI Security Testing ✅ AI Red Teaming ✅ GenAI & LLM Penetration Testing ✅ Cloudflare Setup & Security Rule Configuration ✅ Cloudflare Integration & WAF Management ✅ ASVS & MASVS Security Validation ✅ Threat Modeling & Risk Assessment ✅ Vulnerability Management ➤ 𝗦𝗞𝗜𝗟𝗟𝗦 ✅ OWASP Top 10 ✅ OWASP API Security Top 10 ✅ OWASP Mobile Top 10 ✅ Burp Suite Pro ✅ Nessus ✅ Nmap ✅ Metasploit ✅ Wireshark ✅ Kali Linux ✅ SIEM & Log Analysis ✅ Threat Hunting ✅ Threat Intelligence ✅ Threat Modeling ✅ Secure SDLC ✅ CI/CD Security ✅ Vulnerability Assessment ✅ Exploit Validation ✅ Security Automation ✅ Linux & Windows Security ✅ Docker & Kubernetes Security ✅ Firewall & WAF Security ✅ IAM Security ✅ Zero Trust Concepts ✅ Infrastructure Security ✅ Network Security ✅ Secure Architecture Review ➤ 𝗦𝗘𝗥𝗩𝗜𝗖𝗘𝗦 ✅ Full Security Assessments ✅ Vulnerability Assessment & Penetration Testing (VAPT) ✅ Web, API & Mobile Security Testing ✅ Active Directory Security Review ✅ Secure Architecture Review ✅ Manual & Automated Testing ✅ Compliance Security Testing ✅ Risk Assessment & Reporting ✅ Security Hardening Recommendations ✅ Incident Readiness Support ✅ DevSecOps Pipeline Security ✅ Cloud Infrastructure Review ✅ AI/LLM Security Validation ✅ AI Red Teaming ✅ Ransomware Simulation Exercises ✅ Secure Configuration Review ✅ Threat Modeling ✅ Post-Assessment Re-Testing ✅ Security Consultation & Long-Term Support ➤ 𝗪𝗢𝗥𝗞𝗜𝗡𝗚 𝗘𝗫𝗣𝗘𝗥𝗜𝗘𝗡𝗖𝗘 ✅ Tested Web, API, Mobile, Network & Cloud environments ✅ Experience with startups, SaaS, fintech, healthcare & enterprise systems ✅ Hands-on experience in real-world attack simulations ✅ Implemented DevSecOps & cloud security practices ✅ Experience in vulnerability management & security hardening ➤𝗜𝗡𝗗𝗨𝗦𝗧𝗥𝗜𝗘𝗦 & 𝗗𝗢𝗠𝗔𝗜𝗡𝗦 ✅ FinTech ✅ Healthcare ✅ Banking ✅ SaaS Platforms ✅ eCommerce ✅ Government ✅ Education ✅ Telecom ✅ Enterprise Infrastructure ✅ Cloud Platforms ✅ AI Platforms & LLM Applications ✅ Insurance ✅ Manufacturing ✅ Logistics & Supply Chain ✅ Crypto & Blockchain Platforms ➤ 𝗧𝗢𝗢𝗟𝗦 ✅ Burp Suite Pro ✅ OWASP ZAP ✅ Nessus ✅ Nmap ✅ Metasploit ✅ Wireshark ✅ Nikto ✅ SQLMap ✅ MobSF ✅ Frida ✅ Ghidra ✅ Postman ✅ BloodHound ✅ Mimikatz ✅ CrackMapExec ✅ Hydra ✅ Gobuster ✅ Dirsearch ✅ SonarQube ✅ GitHub Security ✅ Snyk ✅ Trivy ✅ Docker ✅ Kubernetes ✅ Jenkins Security ✅ AWS Security Tools ✅ Azure Security Center ✅ GCP Security Tools ✅ Cloudflare WAF ✅ Microsoft Defender ✅ Splunk ✅ ELK Stack ➤ 𝗪𝗛𝗬 𝗖𝗛𝗢𝗢𝗦𝗘 𝗠𝗘 ✅ Clear and simple communication ✅ Professional reporting with remediation guidance ✅ Manual testing with real-world attack scenarios ✅ Fast response and reliable delivery ✅ Security-focused mindset with business understanding ✅ Practical remediation solutions, not only vulnerability findings ✅ Long-term security support available ✅ Ready to secure your applications, APIs, cloud infrastructure, AI systems, and enterprise environment? Send me a message now and let’s identify and fix vulnerabilities before attackers exploit them. ➤ 𝗞𝗘𝗬𝗪𝗢𝗥𝗗𝗦 Web Penetration Testing, API Security, Mobile Pentesting, Android/iOS Security, Thick Client Security, Network Pentesting, Internal & External Pentest, Active Directory Security, Red Teaming, MITRE ATT&CK, DevSecOps, CI/CD Security, Cloud Security, AWS/Azure/GCP Security, Cloudflare Security, AI Security, LLM Security, Source Code Review, SAST, DAST, Vulnerability Assessment, VAPT, OWASP Top 10, Burp Suite, WAF Security, Phishing Simulation, Threat Modeling, Threat Hunting, Kubernetes Security, Docker Security, IAM Security, Secure SDLC, Security Audit, Zero Trust, SIEM, Splunk, ELK Stack, OSINT, Ransomware Simulation, Security Consulting

  • Penetration Testing
  • Security Assessment & Testing
  • Ethical Hacking
  • Firewall
  • Information Security
  • Network Security
  • Vulnerability Assessment
  • Web App Penetration Testing
  • Nessus
  • Website Security
  • OWASP
  • Mobile App Testing
  • API Testing
  • Back-End Development Framework
  • Cloudflare
  • Internet Security
  • Web Application Firewall
  • Red Team Assessment
  • Application Security
  • Web Application Security
Ahsan K.

Karachi, Pakistan

$25/hr
5.0
17 jobs

100% Job Success. 8,000+ hours. 100+ projects delivered. ISTQB certified. I break software two ways: automated testing finds the bugs, penetration testing finds the vulnerabilities. Teams across FinTech, HealthTech, eCommerce, and Aviation hire me to make sure their products don't break in production, don't leak user data, and don't buckle under traffic. Two services that usually require two separate hires: QA automation and penetration testing. QA & Test Automation. Playwright, Selenium, Cypress, Appium across web, mobile, and API layers. Page Object Model architecture, data-driven execution, BDD with Cucumber, parallel runs, and CI/CD integration through Jenkins or GitHub Actions. Reporting through Allure and Extent Reports. Built automation frameworks for VistaJet, CreditBook, Bykea, and Bluefin that cut regression cycles from days to hours while expanding coverage from UI to API to mobile. Penetration Testing & VAPT. OWASP Top 10 assessments using Burp Suite, ZAP, Nmap, SQLMap, Metasploit, and Kali Linux. Authentication flows, injection vectors, CSRF, SSRF, IDOR, privilege escalation, API security, and mobile app vulnerabilities. Completed VAPT engagements for Netwatch, Switch & Co., MeasuringU, and Premiumpymts. Compliance validation for HIPAA, PCI-DSS, and GDPR with full remediation support until you pass. Performance & Load Testing. JMeter, LoadRunner, BlazeMeter, and Locust for stress, spike, and endurance scenarios. I find the database queries, API bottlenecks, and memory leaks that will crash your app at 10x traffic before your users find them. The overlap matters. Your penetration tester understands your test framework. Your QA engineer thinks like an attacker. Security checks happen inside QA cycles, not as a separate phase. One hire, both skill sets, zero gaps between them. Message me your project details, tech stack, and what's keeping you up at night. Specific testing approach back to you within 4-8 hours.

  • Penetration Testing
  • Vulnerability Assessment
  • Mobile App Testing
  • CI/CD
  • Performance Testing
  • Accessibility Testing
  • DevOps
  • Software Testing
  • QA Automation
  • WordPress e-Commerce

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