EXPLORE


4.8
4.8
89%
$25 USD / Hour
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India (4:58 AM)
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Joined on May 14, 2011
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2 Recommendations
$25 USD / Hour
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I am a Cybersecurity, Digital Forensics, and Threat Intelligence professional with extensive experience supporting Law Enforcement, corporate security teams, legal counsel and high risk private investigations. I specialize in handling complex, sensitive, and technically challenging cases ranging from cybercrime and financial fraud to advanced infrastructure OSINT, cloud security assessments, and forensic malware analysis. My work spans end-to-end digital investigations, incident response, and security testing across Web, Mobile, and critical infrastructure. I combine deep technical capability with defensible reporting standards, ensuring every engagement produces clear, actionable, and legally sound intelligence. Recent engagements include: • OSINT & Infrastructure Mapping of mirrored domain networks, CDN/proxy-shielded assets, and cross-platform digital footprints • Grey-box Application & API Security Assessments using commercial toolsets and structured re-validation cycles • Malware & Ransomware Behaviour Analysis, forensic triage, and evidence acquisition across Windows, Linux, and cloud workloads • Telegram OSINT, account attribution, and disruption-oriented investigations • Remote compromise investigations involving lateral movement, clipboard-based file drops, and email access • CCTV/Wireless Network Security Testing, IoT risk evaluations, and hardware-linked forensic collection • Digital evidence reconstruction for violent-crime video analysis, fraud, and identity misuse cases. Core Expertise • Digital Forensics & Evidence Recovery • Incident Response & Malware Behaviour Analysis • Cybercrime, Financial Fraud & Threat Attribution • OSINT, Infrastructure Recon & Digital Footprint Mapping • Penetration Testing (Web, API, Mobile, Cloud & Wireless) • Secure Architecture Reviews (On-Prem & Cloud) • Cloud Security (GCP, Kubernetes) • Forensic Reporting & Legal Documentation Support My mission is to translate complex technical investigations into clear, strategic outcomes whether restoring organizations after a targeted breach, exposing and documenting coordinated cyber threats, supporting law enforcement with defensible evidence, or strengthening security environments to prevent future attacks.
Verifications
On time
100%
On budget
89%
Accept rate
100%
Repeat hire rate
6%

VAPT

Digital Forensics Evidence Map

Penetration Testing of Web App
Forensics Analysis of Legal Docs
Forensics Analysis of PDF Documents
Penetration Testing

VAPT

Digital Forensics Evidence Map

Penetration Testing of Web App
Forensics Analysis of Legal Docs
Forensics Analysis of PDF Documents
Penetration Testing
He is really professional and expert
Noura A.
@nouraa58
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Dubai, United Arab Emirates
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Impressive work Kajal! everything from understanding my needs as much needed for legal litigation. He is v knowledgeable in this field. Timing ; i cant get any faster! Quality aswell is tops!
Mil R.
@milr4
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Brisbane, Australia
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I had an excellent experience working with Kajal. He helped me remove some sensitive documents from the internet. Communication was clear and timely throughout the process, and he explained each step so I understood what was being done. Everything was handled discreetly, efficiently, and with great attention to detail. I highly recommend him to anyone looking for reliable and trustworthy online reputation or content removal services. Definitely someone you can count on for sensitive tasks.
Ramya P.
@ramyap36
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Gondā City, India
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We appreciate the thoroughness and professionalism demonstrated in the forensic investigation report delivered. The analysis was well-structured, with clear insights into the email spoofing, domain misuse, and metadata tracing. The report helped us understand the nature of the fraud and provided valuable technical evidence for our complaint with the Cyber Crime authorities. Overall, a commendable job and timely delivery.
Sai P.
@asaipriyatham
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Visakhapatnam, India
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The project is not completed according to the dispute
Omar A.
@Slippkora
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Västra Frölunda, Sweden
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Experience
Security and Digital Forensics Researcher
Aug, 2017 - Present
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8 years, 2 months
Law Enforcement Agency
Aug, 2017 - Present
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8 years, 2 months
Penetrating Testing, Digital Forensics Analysis, OSINT, Cyber Crime Investigation, Reverse Engineering, Malware Forensics

Kolkata , India
Aug, 2017 - Present
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8 years, 2 months
Education
Maulana Abul Kalam Azad University of Technology
2012 - 2015
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3 years
BCA ( Bachelor of Computer Application)

India
2012 - 2015
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3 years
Maulana Abul Kalam Azad University of Technology
2012 - 2014
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2 years
Msc Information Science

India
2012 - 2014
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2 years
Qualifications
Cyber Security for Incident Response Team
2024
Government of West Bengal, Department of IT
Advance training on Cyber Security for Information Security Technical Officers (ISTO) and Incident Response Team (IRT)
2024
Certified in Cyber Crime Cyber Forensics Cyber Law
2023
International Forensics Science, Pune
Advance Certification in Cyber Crime Investigation, Digital Forensics and Cyber Law
2023
Certificate Ethical Hacker
2015
EC COUNCIL
Certified in Ethical Hacking v8 from Ec Council USA
2015
Certifications
P
Preferred Freelancer Program SLA