It's Rajan Kumar Barik
Name: Rajan Kumar Barik (ANONDGR)
Profile: Cybersecurity Professional
Email: digitalrajanofficial@gmail.com
Phone: +918144259706
Skills
About me
Hello! I’m Rajan Kumar Barik Also Known As ANONDGR in Hacker's Community , a passionate Cybersecurity Enthusiast and Penetration Tester with a strong focus on ethical hacking, vulnerability analysis, and system hardening and actively ranking on the top 1% in TryHackMe With over 2.3 years of hands-on experience in cybersecurity Learning, I specialize in identifying vulnerabilities, exploiting weaknesses, and safeguarding systems to ensure resilience against evolving threats.
Currently pursuing a Bachelor’s in Computer Applications (BCA), I am well-versed in areas such as Network(End-Point-Sec)Security, Web Application Security, Active Directory ,Reverse Engineering , Binary Exploitation , System Security , Digital Forensics , OSINT And A basics of Cloud (AWS) And AI (Artificial Intelligence ) . My journey includes discovering critical vulnerabilities through bug bounty platforms, contributing to CTF challenges, and honing my skills with real-world penetration testing tools and methodologies..
I am driven by my passion for breaking down complex systems and finding innovative solutions. Whether working independently or in collaboration with a team, I am dedicated to crafting secure, robust systems while continually enhancing my knowledge in the ever-evolving field of cybersecurity.
Education
BACHELOR OF COMPUTER APPLICATIONS & Specialization in Cybersecurity
2022 - 2025
Academy Of Business Administration , Balasore, Odisha, IN
Throughout my BCA journey, I have developed a strong foundation in computer science and programming, mastering languages such as C, C++, Java, Python, JavaScript, PHP and Bash. I’ve gained proficiency in database management, and MySQL, alongside an in-depth understanding of operating systems, computer fundamentals, and computer networking. My studies have also encompassed key areas like Unix and mathematics, enabling me to tackle complex problems with analytical and logical approaches. This diverse skill set has provided me with the technical expertise to pursue my passion for cybersecurity, where I apply my knowledge to secure systems and develop innovative solutions..
Professional Experience
Cybersecurity Intern
2024 [ Jul-Aug ]
NullClass (Remote)
- Conducted vulnerability assessments and penetration testing to identify and mitigate security risks in systems and applications.
- Conducted live bug hunting on HackerOne and Bugcrowd, successfully identifying and reporting three valid vulnerabilities.
- Developed and documented cybersecurity policies and best practices to support compliance and risk management efforts.
- Successfully Pwned an Active HackTheBox machine with a medium difficulty level and published a detailed blog post on Medium outlining the exploitation process.
Projects
Delivering cutting-edge solutions and innovative security tools to fortify the digital landscape.
- All
- Cybersecurity
- Development
Certifications
Demonstrated expertise through industry-recognized certifications and a solid academic background in cybersecurity and technology.
ETHICAL HACKING ESSENTIALS (EHE EC-Council)
2024
Certified Network Security Practitioner (CNSP)
2025
END-POINT SECURITY CERTIFICATION (CISCO)
2024
Achievements
Snyk Fetch the Flag CTF 2025
Secured 130th position out of 1,201 teams across the world, competing among 5,892 players. This achievement showcases exceptional problem-solving and cybersecurity skills in a highly competitive environment.
Hackfinity Battle CTF TryHackMe
Achieved a global ranking of 23rd in the Hackfinity Battle CTF, competing among 25,000+ participants worldwide. Demonstrated advanced cybersecurity expertise, strategic problem-solving, and technical proficiency by earning 1,665 points and successfully completing 44 challenges in a highly competitive environment
AI vs Human CTF Challenge HackTheBox
Achieved a global ranking of 14th and an All India ranking of 2nd in the AI vs Human CTF Challenge, competing against 404 teams from across the globe, showcasing exceptional problem-solving and cybersecurity expertise in a highly competitive environment.
Mumbai's Largest CTF – CyberStorm 2025
Achieved a global ranking of 21st in Mumbai’s Largest CTF—CyberStorm 2025, competing as the leader of Team ANONDOR against top cybersecurity talent. Demonstrated exceptional problem-solving, ethical hacking skills, and strategic teamwork in a high-intensity challenge, solidifying expertise in a competitive cybersecurity landscape.
Cyber Apocalypse CTF 2025
Secured 140th place globally in the Hack The Box Cyber Apocalypse CTF 2025, competing against over 8,130 teams worldwide, demonstrating strong technical skills and problem-solving abilities in a highly challenging cybersecurity competition.
Bugcrowd College Rules CTF
Secured 18th place out of 64 teams in the Bugcrowd College Rules CTF Challenge, showcasing strong cybersecurity skills and strategic problem-solving in a competitive environment.
Job Simulations
Tata Group - Cybersecurity Analyst Job Simulation
This job simulation provided an immersive experience of working as a Cybersecurity Analyst at Tata Group. It involved analyzing and securing a simulated network environment, identifying potential vulnerabilities, and implementing effective strategies to mitigate cybersecurity threats. The simulation allowed me to apply advanced techniques in threat detection, risk assessment, and incident response, mirroring the tasks and responsibilities of a real-world cybersecurity professional.
AIG Shields Up Cybersecurity Job Simulation
This job simulation offered a hands-on experience in cybersecurity operations, focusing on defending critical infrastructure in a simulated environment. Working as part of the cybersecurity team at AIG, I was tasked with identifying and neutralizing cyber threats, managing firewalls, and responding to simulated security incidents. The challenge emphasized real-world application of defensive strategies, threat intelligence analysis, and proactive risk management to safeguard sensitive data and maintain business continuity.
ANZ Australia Cyber Security Management Job Simulation
This job simulation provided an in-depth understanding of cybersecurity management within a large financial institution like ANZ Australia. I was responsible for overseeing the development and implementation of security policies, conducting risk assessments, and coordinating responses to security incidents. The simulation also involved evaluating and optimizing security infrastructure to ensure compliance with industry standards and regulatory requirements. It enhanced my strategic thinking in managing security operations and mitigating risks in a highly dynamic and regulated environment.
Telstra Cybersecurity Job Simulation
This job simulation immersed me in the role of a cybersecurity professional at Telstra, where I was tasked with securing the company’s extensive network infrastructure. The simulation involved identifying potential vulnerabilities, monitoring traffic for malicious activity, and deploying protective measures against cyber threats. I also focused on developing incident response protocols and enhancing the company's security posture by implementing cutting-edge cybersecurity solutions. This experience sharpened my technical and analytical skills while providing a deeper understanding of the complexities of cybersecurity in a telecom environment.
Mastercard Cybersecurity Job Simulation
In this job simulation, I focused on defending against phishing campaigns within Mastercard’s cybersecurity infrastructure. I was tasked with identifying and mitigating phishing attempts aimed at compromising sensitive data, educating employees about phishing threats, and strengthening the company's defenses. The simulation involved simulating phishing attacks, analyzing email headers, and deploying security measures such as email filtering and multi-factor authentication (MFA). This experience deepened my knowledge of social engineering tactics and enhanced my ability to protect organizations from phishing-related threats.
Tools
Harnessing industry-leading tools such as Kali Linux, Burp Suite, Ghidra, Metasploit, Wireshark, and more to conduct in-depth security assessments, identify vulnerabilities, and fortify systems against evolving threats.
Resume at a Glance
Ping Me
Let's connect! Feel free to reach out for collaborations, inquiries, or exciting opportunities.
Call Me
+91 8144259706
Address
Balasore,
Odisha, IN
Email Us
digitalrajanofficial@gmail.com
🛜
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