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Sachin G.

Sachin G.

Penetration Tester | VAPT | Web, API, Mobile, Cloud & AI Security

Hi there 👋I am a Professional Penetration Tester with 4+ years of hands-on experience in Vulnerability Assessment and Penetration Testing (VAPT), helping businesses identify security vulnerabilities, assess real-world risks, and strengthen their overall security posture. I work with startups, SaaS companies, SMEs, enterprises, e-commerce platforms, fintech companies, technology businesses, and organizations across various industries worldwide, delivering comprehensive security assessments through a combination of manual testing, automated tools, and industry-recognized methodologies. 🔐 Security Testing Services ✔ Web Application Security: Comprehensive web application penetration testing, vulnerability assessment, authentication, authorization, and business logic testing. ✔ API Security: REST, GraphQL, authentication, authorization, and business logic vulnerability testing. ✔ Mobile Application Security: Android and iOS application penetration testing and vulnerability assessments. ✔ Cloud Security: Cloud infrastructure, security configurations, identity and access management, and cloud security assessments. ✔ Network Security: Internal and external network penetration testing and vulnerability assessments. ✔ AI & LLM Security: AI application and LLM penetration testing, prompt injection, sensitive information disclosure, and security risk assessments. ✔ Infrastructure Security: Server, system, and infrastructure security assessments. 🎯 I'M A GOOD FIT IF: - You need a professional penetration test for SOC 2, ISO 27001, or other security compliance and audit requirements. - Your enterprise customers, business partners, or clients require a recent penetration testing report as part of their security assessment or vendor due diligence. - You operate a SaaS platform, multi-tenant application, or business-critical web application and need to identify security weaknesses before they impact your customers. - You are launching or updating an iOS or Android application and need to assess its security before production release. - You are developing APIs, integrating third-party services, or handling sensitive customer data and require a comprehensive security assessment. - You manage cloud infrastructure or network environments and need to identify misconfigurations, vulnerabilities, and potential attack paths. - You are building AI-powered applications, integrating LLMs, or deploying GenAI features and need to assess risks such as prompt injection and sensitive information disclosure. - You need an independent security assessment, annual penetration testing, vulnerability validation, or remediation retesting. 🛠️ Security Tools, Frameworks & Methodologies Industry-Standard Security Tools: Burp Suite Professional, OWASP ZAP, Nmap, Nessus, Metasploit, Postman, SQLMap, Wireshark, and other widely adopted security testing tools. Security Standards & Methodologies: OWASP Web Security Testing Guide (WSTG), OWASP Top 10, OWASP API Security Top 10, OWASP Mobile Application Security, OWASP Top 10 for LLM Applications, NIST SP 800-115, and CVSS for vulnerability assessment, risk classification, and severity rating. I leverage industry-recognized frameworks, automated security tools, and in-depth manual testing techniques to deliver structured, comprehensive, and actionable security assessments aligned with industry best practices. 🏆 Security Research & Achievements 🛡️ Active Bug Bounty Researcher on HackerOne and Bugcrowd. 🛡️ Earned multiple bug bounty rewards and Hall of Fame recognitions. 🛡️ Featured twice by NCIIPC among the Top 15 Cybersecurity Researchers in India. 📋 What You'll Receive ✅ Comprehensive manual and automated security testing ✅ Detailed professional VAPT reports with Proof of Concepts (PoCs) ✅ CVSS-based severity ratings and risk classification ✅ Clear and actionable remediation recommendations ✅ Free retesting support after vulnerability fixes 📞 Free Initial Security Consultation Available 🕗 10:00 AM IST – 11:00 PM IST My goal is not just to identify vulnerabilities but to help businesses understand, prioritize, and remediate security risks before attackers exploit them. Let’s work together to secure your application before attackers find the gaps.

🇮🇳Agra, India$20/hr100% JSS4.49 (3)Since Aug 2025

Earnings and projects

MRR
$231

Last 6 months ÷ 6

World#108,158 / 412k
🇮🇳Country#11,384 / 45.9k
Revenue, last 30 days
$275

Last 6 months: $1.4k

World#76,135 / 412k
🇮🇳Country#8,109 / 45.9k
Total earnings
$1.7k

Billed in all: $1.7k

World#350,064 / 412k
🇮🇳Country#38,847 / 45.9k
Per project
$185

$173 in the last 6 months

World#270,125 / 412k
🇮🇳Country#31,954 / 45.9k
Projects, last 6 months
8
88% fixed12% hourly
World#24,499 / 412k
🇮🇳Country#3,096 / 45.9k
Projects in all
9
89% fixed11% hourly
World#212,268 / 412k
🇮🇳Country#27,855 / 45.9k

Earnings, last 30 days

$1.7k+$275 earned in the last 30 daysBilled in all, before Upwork's fee · drag across the chart to see what was earned in any stretch
$1.4k$1.6k$1.8kOct 8Oct 23Nov 7

Skill rankings: Top 21% in Ethical Hacking

Ranked by MRR among everyone on Upwork with the skill.

  1. #8Bug Bounty34 freelancers · 🇮🇳 #3Top 24%
  2. #12Metasploit42 freelancers · 🇮🇳 #4Top 29%
  3. #31OWASP109 freelancers · 🇮🇳 #5Top 28%
  4. #54Security Testing255 freelancers · 🇮🇳 #10Top 21%
  5. #54Web App Penetration Testing235 freelancers · 🇮🇳 #7Top 23%
  6. #60Web Application Security246 freelancers · 🇮🇳 #9Top 24%
  7. #66Ethical Hacking320 freelancers · 🇮🇳 #4Top 21%
  8. #79AI Security199 freelancers · 🇮🇳 #17Top 40%