I am an 7 experienced Cyber Security Specialist with a strong focus on protecting digital assets, securing networks, and identifying vulnerabilities before attackers do. I help businesses safeguard their systems, applications, and data against cyber threats while ensuring compliance with industry security standards.
With hands-on experience across network security, application security, and cloud environments, I deliver practical and scalable security solutions tailored to business needs.
✅ What I Can Help You With
🔹 Vulnerability Assessment & Penetration Testing (VAPT):
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Web & network vulnerability assessments
Manual and automated penetration testing
OWASP Top 10 security issues remediation
🔹 Network & Infrastructure Security:
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Firewall configuration & hardening
IDS/IPS setup and monitoring
Secure network architecture design
🔹 Web Application Security:
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Website & API security testing
Secure authentication & access control
Fixing SQL Injection, XSS, CSRF, and other vulnerabilities
🔹 Cloud & DevSecOps Security:
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AWS, Azure, GCP security best practices
Cloud misconfiguration audits
Secure CI/CD pipelines
🔹 Security Compliance & Risk Management:
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ISO 27001, SOC 2, HIPAA, PCI DSS guidance
Risk assessment and security gap analysis
Security policies, SOPs, and documentation
🛠 Tools & Technologies:
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Burp Suite, Metasploit, Nessus, Nmap, Wireshark
SIEM & log analysis
Linux, Windows Security
OWASP ZAP, Kali Linux
Cloud security tools (AWS Security Hub, Azure Security Center)
💡 Why Clients Choose Me:
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✔ Clear and actionable security reports
✔ Strong communication & quick response time
✔ Focus on real-world, business-friendly security solutions
✔ 100% confidentiality and ethical standards
🎯 How I Work :
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1.Understand your system, business, and risk level
2.Perform thorough security testing and analysis
3.Provide a detailed vulnerability report with fixes
4.Support remediation and re-testing
If you’re looking for a reliable Cyber Security expert who takes security seriously and delivers real value let’s connect.
📩 Message me to discuss your project and secure your business today.
🔢 As an Upwork Top 1% Expert Vetted 👑 OSCP+, Certified Ethical Hacker and an Experienced Penetration Tester with 10+ years of experience Penetration Testing Web SaaS and Mobile based applications and networks, every flaw tells a story; I write the ending and specialize in helping my clients strengthen their cybersecurity defenses.
An average Cybersecurity Incident in your business can you cost you anywhere between $120,000+ to $1.24+ million and even a 10%+ reduction in risk can save your business nearly $124,000+ and hiring a full time in-house team can cost you $100,000+ per employee per year. That is why you need an expert like me to protect your business and reduce your business risk.
What makes me stand out from other freelancers is the fact that I am also a Cybersecurity Architect, capable of architecting solutions to enhance the security of your organisation and preserving the security and integrity of your data.
I have always been passionate about solving technical problems for my clients through Pen Testing and I don't rest till I get to the root of the problem and solve it.
What I can offer?
I can help you secure your business by providing the following services:
✅ Web/Mobile Application Penetration Testing,
✅ Secure Source Code Analysis,
✅ Network Penetration Testing,
✅ Secure Architecture Review,
✅ API Security Testing,
✅ SOC 2, ISO 27001, PCI DSS, AMAZON SP and Compliance-Oriented Penetration Test Reports
✅ Secure Code Review,
✅ CASA Assessment,
✅ Red Team Assessment,
✅ Phishing Simulations & Assessment.
Why Choose Me?
🧑🏼💼 Client-Centric Approach: Your security is my top priority. I work closely with your team to understand your objectives and deliver tailored services that align with your business goals. Trust and transparency are the cornerstones of my practice, and I am committed to helping you navigate the complex landscape of cybersecurity with confidence and achieve compliance.
📐 Comprehensive Security Assessments: I conduct detailed SOC Type 2 / ISO compliant evaluations to identify vulnerabilities in your network, applications, and infrastructure.
✂️ Tailored Solutions: Every organization is unique. I customize my approach to meet your specific security needs and industry standards.
🎬 Actionable Recommendations: Post-assessment, I provide clear, concise, and practical remediation steps to address identified vulnerabilities.
🔁 Ongoing Support: Cybersecurity is an ongoing process. I offer continuous support and re-assessment to ensure your defenses remain robust against evolving threats
🌏 Holistic Approach: I don't just patch vulnerabilities; I architect comprehensive security solutions that align with business goals. My focus extends beyond the technical to encompass risk management and organizational resilience.
🗨️ Collaborative Communicator: I bridge the gap between technical jargon and business language, fostering understanding across teams. Effective communication is key to successful security implementation.
🏫 Continuous Learning: The threat landscape evolves, and so do I. Whether it's a new attack vector or an emerging technology, count me in. Learning is my superpower.
🙋♂️ Key Skills:
✔️ Penetration Testing & Vulnerability Assessment: I thrive on dissecting systems, identifying weaknesses, and recommending robust solutions. Armed with tools like Kali Linux, Metasploit, Nmap, and Wireshark, I delve into web applications, networks, and APIs. But here's the twist—I don't stop at discovery; I offer a free retest after remediation to ensure vulnerabilities stay sealed.
✔️ Network Security: I've designed and implemented secure network architectures, ensuring data confidentiality, integrity, and availability. Firewalls, intrusion detection systems, and VPNs—my toolkit covers it all.
✔️ Cloud Security: Proficient in securing cloud environments especially Amazon Web Services (AWS) & Oracle Cloud Infrastructure (OCI). I stress-test cloud deployments ensuring they withstand real-world attacks.
✔️ Secure Coding Practices: I advocate for secure coding principles using tools like SonarQube and collaborate with development teams to build resilient applications. Prevention beats cure, every time.
⛏️Tools I Use
☑️ Penetration Testing: Nmap, Metasploit, Burp Suite Professional, Wireshark, SQLmap, Kali Linux
☑️ Programming & Scripting Skills: Python, Bash, PowerShell, JavaScript, Java and C#
☑️ Security Frameworks & Standards: OWASP, NIST, CASA, CIA Triad, PCI-DSS
🫱🏽🫲🏽 Let's Connect: Ready to enhance your business/organization's security? Let's chat! Reach out to me here on Upwork, and let's build a safer digital future together.
🟢 Press '...' button and then ‘Send Message’ button in the top right-hand corner ✉️
🚫 No hacking service - I do not provide any hacking services, and I will not engage in any activities that involve gaining unauthorized access to any accounts, systems, or social media platforms. Requests for such services will be declined.
Prashant D.
Expert Cybersecurity Professional
Bengaluru, India
$25/hr$25 per hour4.9 (7) 13 jobs $1K+ total earnings
6+ years as an Offensive Security Researcher, OSCP and CEH v12 certified, I help startups, SaaS companies, and enterprises think like an attacker before real attackers do through hands-on Penetration Testing, Red Teaming, and Vulnerability Assessment (VAPT) across web, mobile, API, network, and cloud environments.
My approach is simple: real offensive security isn't a scanner dump it's manual exploitation, chained attack paths, and a prioritized, developer-ready remediation plan mapped to your actual business risk.
With a strong software engineering background, I read source code, trace data flows, and reason about architecture catching business-logic flaws, privilege-escalation chains, and design weaknesses that automated tools always miss.
🎯 PENETRATION TESTING & VAPT
Full-scope Vulnerability Assessment and Penetration Testing (VAPT) across the OWASP Top 10, OWASP API Security Top 10, and PTES/OSSTMM methodologies: broken access control, IDOR, SSRF, SQLi/NoSQLi/command/template injection, XSS, CSRF, insecure deserialization, auth/session flaws, privilege escalation, and business-logic abuse.
Web App Pentesting: React, Angular, Vue, Next.js, Node.js, Django/Flask/FastAPI, Spring, Laravel, Rails, .NET, Go
Mobile Pentesting: Android & iOS per OWASP MASVS/MASTG, static + dynamic analysis, reverse engineering, insecure storage, API/backend abuse
API Pentesting: REST, GraphQL, SOAP auth bypass, rate-limit abuse, mass assignment, BOLA/BFLA
Network Pentesting: internal/external, Active Directory attacks (Kerberoasting, pass-the-hash, lateral movement, privilege escalation), segmentation testing
Every finding is manually verified (zero false positives), CVSS-scored, and delivered with an executive summary + technical deep dive + exact remediation steps, plus a free retest.
Tools: Burp Suite Pro, OWASP ZAP, Nmap, Metasploit, Cobalt Strike, Nuclei, sqlmap, Nessus, ffuf, BloodHound, Mimikatz, Hashcat, John the Ripper, Wireshark
🕵️ RED TEAMING & ADVERSARY SIMULATION
End-to-end Red Team engagements simulating real-world TTPs mapped to MITRE ATT&CK: initial access, phishing simulation, C2 infrastructure, privilege escalation, lateral movement, persistence, and data exfiltration testing people, process, and technology together, not just systems. Purple Team collaboration to strengthen detection and response (SOC/EDR/SIEM evasion & tuning).
☁️ CLOUD SECURITY (AWS, Azure & GCP)
IAM and least-privilege reviews, network segmentation, exposed storage (S3/Blob/GCS), privilege-escalation paths, and CIS Benchmark hardening. Cloud penetration testing and CSPM assessments using Prowler, ScoutSuite, and Pacu.
⚙️ DEVSECOPS & INFRASTRUCTURE SECURITY
Security embedded into CI/CD (GitHub Actions, GitLab CI, Jenkins), container/Kubernetes security (Trivy, Grype, RBAC, Pod Security Standards), and IaC security review for Terraform/CloudFormation/Ansible (Checkov, tfsec). SAST, DAST, SCA, and secrets scanning integration (Semgrep, Snyk, SonarQube, Gitleaks, TruffleHog).
🤖 AI / LLM SECURITY
Offensive testing of AI/ML and LLM-powered features against the OWASP Top 10 for LLM Applications and MITRE ATLAS: prompt injection, jailbreaks, model DoS, sensitive-data leakage, insecure output handling, and excessive agency in agentic systems.
🧠 SECURITY ENGINEERING & RESEARCH
Secure code review, threat modeling (STRIDE, attack trees), reverse engineering (Java/bytecode, anti-tamper analysis), malware analysis fundamentals, and security architecture design.
🤝 HOW I WORK:
1️⃣ Free scoping call to define objectives, rules of engagement, and scope
2️⃣ Testing/assessment with clear, regular communication
3️⃣ A prioritized report Executive Summary + technical detail + exact fixes
4️⃣ Free retest and debrief once your team remediates
Every engagement is handled under strict confidentiality, signed Rules of Engagement, and full written authorization. I don't oversell if you don't need a service, I'll tell you honestly.
Keywords: penetration testing, ethical hacking, VAPT, red teaming, purple team, OSCP, CEH, offensive security, web app pentest, mobile pentest, API pentest, network pentest, Active Directory pentest, cloud security, AWS pentest, Azure pentest, GCP pentest, DevSecOps, cybersecurity consultant, vulnerability assessment, security audit, ISO 27001, SOC 2, GDPR compliance, MITRE ATT&CK, OWASP Top 10, secure code review, threat modeling, AI security, LLM security.
📩 Message me with your project details, and I'll respond with a clear, no-pressure scoping plan.
Kunal N.
Penetration Tester | Web, API, Cloud & AI Security | Red Teaming
Pune, India
$20/hr$20 per hour5.0 (3) 6 jobs $2K+ total earnings
🌐 Top 10 % on Upwork 📅 11+ Years of Experience | ✅ Penetration Tester | 🌐 80+ projects outside Upwork | 🚀 Quick Response Time | 🕒 On-Time Delivery | 🛡️ Post Contract Support
I help SaaS companies, and enterprises identify critical security vulnerabilities before they become costly breaches, compliance issues, or business disruptions.
As an Application Security Consultant and Penetration Tester, I specialize in uncovering real-world security weaknesses across web applications, APIs, network infrastructure, cloud environments, and modern technology platforms. My goal is not only to identify vulnerabilities but also to help organizations understand their security risks, prioritize remediation efforts, and strengthen their overall security posture.
I have worked on security assessments involving enterprise applications, banking platforms, healthcare systems, cloud infrastructures, and business-critical applications. My experience includes identifying authentication flaws, access control weaknesses, business logic vulnerabilities, network misconfigurations, cloud security gaps, API security issues, and attack paths that automated scanners frequently miss.
Core Security Services
• Web Application Penetration Testing (OWASP Top 10 & Business Logic Testing)
• API Security Testing (REST & GraphQL)
• Network & Infrastructure Security Testing
• Cloud Security Assessments (AWS)
• Red Team Operations & Adversary Simulation
• AI / LLM Security Testing
• Vulnerability Assessment & Risk Analysis
• Security Architecture Review
• Email Security Implementation (SPF, DKIM & DMARC)
What You Can Expect
• Comprehensive Manual Security Testing
• Detailed Vulnerability Reports
• Proof-of-Concept Validation
• Risk-Based Prioritization
• Clear Remediation Guidance
• Remediation Validation & Retesting
• Executive and Technical Reporting
Tools & Technologies
• Burp Suite Professional
• Nmap
• Metasploit Framework
• Nessus
• OWASP ZAP
• Wireshark
• SQLMap
• AWS Security Tools
• Kali Linux
Long-Term Security Partnership
Many organizations engage me beyond a single penetration test. I work with clients on recurring security assessments, monthly security reviews, remediation verification, secure development guidance, and continuous security improvement initiatives.
Whether you need a one-time security assessment or a long-term security partner, I focus on delivering actionable security insights that help protect your applications, infrastructure, customers, and reputation.
If you are looking for a security professional who can think like an attacker and provide practical, business-focused security recommendations, I would be happy to discuss your project.
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