Senior Penetration Tester (FinTech Security)

5 years

0 Lacs

Posted:1 week ago| Platform: Linkedin logo

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Job Description


Senior Penetration Tester (FinTech Security)

Company: Hashorn System Pvt Ltd.

Location: Lucknow, Uttar Pradesh (Onsite)

Experience: 5+ years

Package: Competitive Salary (based on your experience and qualifications)

Employment Type: Full-time


About Hashorn


Hashorn is a fast-growing technology company. We focus on scalability, security, and innovation, and we’re looking for talented engineers who want to grow with us and make an impact.


Role Overview


We are seeking an experienced Senior Penetration Tester with deep expertise in financial technology (FinTech) platforms and high-security transactional systems. The ideal candidate will have a minimum of 5+ years of hands-on offensive security experience and be capable of identifying and exploiting vulnerabilities across payment systems, APIs, mobile banking applications, digital wallets, and cloud-based financial services.

This position requires an immediate joiner.



Key Responsibilities

  • Conduct advanced penetration tests on FinTech applications, payment gateways, transaction processing systems, and backend infrastructures
  • Assess security of mobile banking apps, digital wallet integrations, microservices, and financial APIs
  • Perform transaction-level threat modeling, fraud simulation, and API-level abuse testing
  • Execute network, web, mobile, and cloud penetration tests and develop PoCs for critical vulnerabilities
  • Ensure alignment with PCI DSS, ISO 27001, PSD2, and relevant regulatory compliance
  • Work closely with engineering, security, and DevSecOps teams to provide secure architecture recommendations
  • Prepare both executive-level and technical reports with detailed remediation guidance
  • Stay updated on financial sector threat vectors, fraud trends, and new exploitation techniques



Required Qualifications

  • 5+ years of penetration testing/offensive security experience
  • Proven experience working with FinTech, banking, or payment platforms
  • Strong understanding of API security (OWASP API Top 10), tokenization, encryption, JWT security, and transaction integrity
  • Hands-on experience with tools such as Burp Suite Pro, Nmap, Metasploit, Wireshark, MobSF, Frida, etc.
  • Deep knowledge of OWASP Top 10, PTES methodology, MITRE ATT&CK, and secure coding principles
  • Proficiency in scripting (Python, Bash, PowerShell) for automation and custom exploit development
  • Experience with cloud security testing in AWS/Azure/GCP, especially in financial microservices architecture



Preferred Qualifications

  • Industry-recognized certifications such as OSCP, OSWE, OSEP, CRTO, eCPPT, PNPT, or GPEN
  • Practical understanding of KYC, AML, PCI-DSS, PSD2/Open Banking security requirements
  • Familiarity with fraud detection bypass techniques and transaction replay/abuse scenarios
  • Experience working with CI/CD security and secure mobile frameworks
  • Previous experience in a regulated finance or banking environment



Soft Skills

  • Strong analytical thinking with an attacker mindset
  • Precise documentation and communication skills
  • Ability to translate technical vulnerabilities into business risk impact
  • Self-driven and able to work in fast-paced, compliance-heavy environments
  • Ready to join immediately



Why Join Hashorn?


  • Be part of a new and fast-growing tech company from the ground up.
  • Opportunity to work on challenging cloud-native projects.
  • Competitive salary and growth opportunities.
  • A culture of ownership, learning, and innovation.


📩 Apply now by sending your resume to hr@hashorn.com


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