Cybersecurity Engineer

Cyber Security is an integral part of Visa’s corporate culture. It is important to maintaining our position as an industry leader in electronic payments. At Visa, it is the responsibility of every employee to safeguard information, protect it from unauthorized access, and ensure regulatory compliance. Cyber Security affects privacy, consumer confidence, and external reputation, and it is a priority on everyone’s agenda.

We are seeking a Cyber Security Engineer (Endpoint) with skills in EDR, AV, privilege management, application control, ringfencing solutions, and Windows/MacOS security features. This role is within the Cybersecurity Engineering team, responsible for designing, deploying, and supporting solutions to monitor and protect Visa’s systems and data. The ideal candidate will be proficient in Python and experienced in applying AI/ML techniques to endpoint security use cases, including automation, detection engineering, and large-scale telemetry analysis.

The ideal candidate will have prior experience implementing or supporting cross-organizational IT security solutions with good written and verbal communication skills, and exceptional organizational skills.

Basic Qualifications:

• 2+ years of relevant work experience and a Bachelor's degree, OR 5+ years of relevant work experience.

Preferred Qualifications:

• 3 or more years of work experience with a bachelor’s degree or more than 2 years of work experience with an Advanced Degree (e.g., Masters, MBA, JD, MD).
• 3+ years’ experience in designing, deploying, and/or supporting enterprise-scale security solutions.
• Experience working with or implementing endpoint and network security solutions in an enterprise.
• Knowledge of operating systems internals, hardening, and monitoring (Windows and UNIX).
• Knowledge of TCP/IP network fundamentals.
• Proficiency in Python.
• Experience with GenAI engineering and hands-on experience implementing LLM-powered services/retrieval-augmented generation (RAG) at production scale, including document ingestion pipelines, chunking/embedding strategies, vector databases, and relevance tuning.
• Broad knowledge of scripting languages is a plus.
• Excellent communication skills and a strong team player.
• Experience demonstrating leadership, self-motivation, and accountability.
• Deep understanding of operating systems internal workings, such as kernel processes and privilege levels for both Windows and Linux/Mac.
• Good understanding of Cyber Security Operations and Incident Response processes.
• Preferred certifications include AWS Certified Cloud Practitioner, AZ-500, CISSP, SSCP, GIAC Certified; OSCP is a major plus.

This role qualifies for Autorskie Koszty Uzyskania Przychodu (KUP), in accordance with applicable Polish tax regulations. Eligible employees may benefit from preferential tax treatment on income derived from the creation of intellectual property, subject to meeting statutory criteria.

Essential Functions:

• Provide direction and support in the implementation of leading-edge endpoint antivirus, EDR, application control, privilege management security technologies utilizing a risk-based approach for testing and introduction into the overall environment.
• Provide engineering solutions to new threats leveraging implemented endpoint tools and identify gaps where improvement and/or new controls are needed.
• Apply GenAI/ML methods (e.g., anomaly detection, supervised models, heuristics with feature engineering) to endpoint telemetry for threat detection and other cybersecurity endpoint engineering use cases; evaluate model performance and drift.
• Be passionate in the pursuit of securing Visa’s data and critical assets.
• Instil a culture that works toward the highest standards in security engineering while ensuring business requirements are understood and security risks in new and existing infrastructure are properly understood and mitigated.
• Collaborate with colleagues in technology departments as well as business and product offices to establish effective, productive business relationships.
• Provide technical solutions and know-how to the global Cyber Engineering team in all aspects of endpoint security.
• Take part in the design, build, and run of a variety of endpoint security implementations in a diverse and complex environment, taking ownership of each initiative and producing successful outcomes.
• Work within a team of security engineering professionals responsible for planning, design, implementation, attack prevention and mitigation, and ongoing support of security systems of high complexity to fulfil security requirements without impacting business needs.
• Implement security and threat protection controls to protect data and applications using a diversity of cloud and on-prem Endpoint security tools.
• Create clear and concise documentation to formalize work stream processes.
• Meet SLAs by processing requests to resolve endpoint security issues with server and workstation support, as well as end users.
• Administrate and implement policies/rules on endpoint sensors and refine security standards.
• Work with all interfacing teams to define and baseline system uptime SLAs and KPIs from main security solutions.
• Work with other Cyber Security teams to manage endpoint security prevention effectively and efficiently; work closely with research team, undertake research of threat vectors, and provide mitigation strategies.
• Work with stakeholders, mentoring and providing technological guidance on endpoint security.
• Provide recommendations to management team to increase effectiveness of endpoint security solutions.
• Prioritize, plan projects and features, manage stakeholders, and track internal and external commitments.
• Respond to and assist with due diligence and internal/external security audit requests.
• Identify opportunities for further enhancements and refinements to security standards and processes.

This is a hybrid position. Expectation of days in office will be confirmed by your hiring manager.

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.