Visa is a world leader in digital payments, facilitating more than 215 billion payments transactions between consumers, merchants, financial institutions and government entities across more than 200 countries and territories each year. Our mission is to connect the world through the most innovative, convenient, reliable and secure payments network, enabling individuals, businesses and economies to thrive.

When you join Visa, you join a culture of purpose and belonging – where your growth is priority, your identity is embraced, and the work you do matters. We believe that economies that include everyone everywhere, uplift everyone everywhere. Your work will have a direct impact on billions of people around the world – helping unlock financial access to enable the future of money movement.

Join Visa: A Network Working for Everyone.

Candidate will develop, support, tune and deploy security solutions across Visa.

Primary day-today job duties involve - 

• Web  Application Security: Engineering, deployment, and operations of security solutions, including Web Application Firewalls, as well as integration of those platforms with other solutions as required. 

• Security Software Development: Scripting and Development in Python, Shell scripting and development in other languages 

Responsibilities 

Web Application Security WAF Engineer: 

• Engineers, configures, deploys, and maintains Web Application Firewall solutions 
• Develops advanced scripts for manipulation of multiple data repositories to support analyst requirements 

• Develops advanced alerts/reports to meet the requirements of key stakeholders 
• Develops scalable security management tools and processes 
• Develops automation for security tools management and workflow integration 
• Collaborates with key stakeholders within Cybersecurity and Engineering teams to develop specific use cases to address specific business needs 
• Creates WAF rules to mitigate threats and implements best practices 

• Develop new SIEM content   for Cybersecurity teams,  including correlations, enrichments, dashboards, reports, and alerts that appropriately characterize web application attacks and mitigation mechanisms 

Application Security: 

• Knowledge of SSDLC processes 
• Required knowledge of open source and commercial application security tools and frameworks, including but not limited to Kali Web application testing tools 

• Experience in exploiting web apps and web services security vulnerabilities including cross-site scripting, cross-site request forgery, SQL injection, DoS attacks, XML/SOAP, and API attacks.
• Excellent understanding of OWASP Risks, Vulnerabilities and Mitigation Mechanisms 
• Experience with Web Application Firewall management and rules 
• Well versed in system exploits (e.g. Buffer Overflows, PTH attacks, windows authentication framework etc.) 
• Excellent understanding of common network and web protocols 

• Excellent understanding of DDoS techniques and mitigation mechanisms 

Cyber Defense and Incident Response: 

• Solid understanding of events, related fields in log records and alerts reported by various data sources such as Windows/Unix systems, IDS/IPS, AV, HIDS/HIPS, WAFs, firewalls, and web proxies 
• Prior experience in Security Operations and Incident Response 
• Excellent understanding of Cyber Security Operations, Incident Response processes 

Infrastructure management and support: 

• System administration experience in a Windows and Unix environment 
• Experience working in a large enterprise environment 
• Experience integrating solutions in a multi-vendor environment 
• Familiarity with Atlassian JIRA 

Work Hours: Varies upon the needs of the department.

Travel Requirements: This position requires travel 5-10% of the time.

Mental/Physical Requirements: This position will be performed in an office setting.  The position will require the incumbent to sit and stand at a desk, communicate in person and by telephone, frequently operate standard office equipment, such as telephones and computers.

Visa is an EEO Employer.  Qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, sexual orientation, gender identity, disability or protected veteran status.  Visa will also consider for employment qualified applicants with criminal histories in a manner consistent with EEOC guidelines and applicable local law.

Visa will consider for employment qualified applicants with criminal histories in a manner consistent with applicable local law, including the requirements of Article 49 of the San Francisco Police Code.