Chaitanya Chaitanya Appani Appani

Information Security Engineer at Mastercard

Role
Lead Information Security Engineer at Mastercard
Location
O\'Fallon, MO, US
LinkedIn followers
500 followers
Information TechnologyView LinkedIn profile

About Chaitanya Chaitanya Appani Appani

As a Lead Information Security Engineer in the financial sector, I design and implement secure, scalable, and resilient cybersecurity architectures to protect critical financial systems and data. My work focuses on large-scale network security analytics, predictive threat modeling, and anomaly detection using advanced machine learning techniques. With deep expertise in malware reverse engineering, botnet detection, and secure protocol design, I develop proactive defense strategies that align with regulatory standards and industry best practices. I’m driven by a mission to safeguard financial institutions from sophisticated cyber threats while ensuring trust, privacy, and operational continuity.My research focused on advancing the frontiers of large-scale network security analytics and intelligent threat detection. With a strong foundation in machine learning and predictive analytics, my work transforms vast streams of network traffic and malware data into actionable insights—powering anomaly detection, risk scoring, and early threat identification. My experience spans botnet detection, malware analysis, reverse engineering, and secure protocol design, with a mission to engineer robust, real-world solutions that safeguard the security, privacy, and integrity of digital systems across industries.

Experience

  1. Lead Information Security Engineer

    Mastercard

    Mar 2019 — Present

    Implement Checkmarx (code analysis tool for web apps) for Static application security testing. Reviewed source code (Java/J2EE/Spring/FTL/JavaScript) and developed security filters within Checkmarx for critical applications. Implemented Secure Software Development Life Cycle (S-SDLC) processes; developed secure coding practices for web, mobile applications, including database and middleware systems. Conducted weekly meetings with developers to remediate security issues. Supporting in preparation of plans to review software components through source code review or application security review Automated Checkmarx with Bamboo (CI/CD) to run scans on a daily basis. Implemented Application Security program (DAST and SAST) at the enterprise level to identify, report and remediate security vulnerabilities from applications deployed in DEV, PRE-PROD and Source code using IBM AppScan Source, triage and resolve the security vulnerabilities. Performed PCI pre-assessment audit for the entire network as well as the related applications in preparation for the annual external PCI compliance audit Providing fixes & filtering false findings for the vulnerabilities reported in the scan reports. Supporting in preparation of plans to review software components through source code review or application security review Prepare and assemble work papers for assigned audits in accordance with departmental standards and update the SOX repository in a timely manner Provide timely status reports to the project manager on progress of activities Used Burp suite to manual penetration testing for internal sites

Education

  • Jawaharlal Nehru Technological University

    Bachelor's degree, Computer Science

    2010 — 2014

Skills

  • Agile Methodologies
  • Ms Office
  • Java
  • Node.js
  • Coded UI
  • Visual Studio6.0
  • Visual Studio
  • Vbscript
  • C++
  • Ado.net
  • Xml/Xsd
  • Javascript
  • Uml
  • .net Framework
  • C#
  • Team Foundation Server (Tfs)
  • Sql Server Reporting Services (Ssrs)
  • Oracle
  • Ms Visio
  • Dhtml
  • .net Remoting
  • Web Services
  • Windows Communication Foundation (Wcf)
  • C
  • Nhibernate
  • Jquery
  • Ajax
  • Unix
  • Windows Server
  • Pl/Sql
  • Nunit
  • Transact-Sql (T-Sql)
  • Css
  • Xsl/Xslt
  • Html
  • Tdd
  • Erwin
  • Crystal Reports
  • Msa Acess
  • Microsoft Sql Server

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Chaitanya Chaitanya Appani Appani — Lead Information Security Engineer at Mastercard in O\'Fallon, MO, US | Unifers