Senior Data Scientist

<h3>Company Description</h3><p>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.</p><p>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.</p><p><strong>Join Visa: A Network Working for Everyone.</strong></p><h3>Job Description</h3><p>Visa’s Technology Organization is a community of problem solvers and innovators reshaping the future of commerce.  We operate the world’s most sophisticated processing networks capable of handling more than 65k secure transactions a second across 80M merchants, 15k Financial Institutions, and billions of everyday people.   While working with us you’ll get to work on complex distributed systems and solve massive scale problems centered on new payment flows, business and data solutions, cyber security, and B2C platforms.</p><p><strong>The Opportunity:</strong></p><p>We are looking to hire a Data Scientist to lead the AI/ML initiatives in the Cybersecurity Products team. This position will be based out of Warsaw, Poland. In this role, you will:</p><ul><li>Be responsible for driving, designing, and building cutting edge innovation in the space of cybersecurity through Artificial Intelligence and Machine Learning - current scope of problems includes behavior biometrics, risk-based authentication, Account Takeover protection, advanced threat detection, smart incident response, AI model threat analysis, and many more.</li><li>Drive the continued innovation and engineering of our existing behavior-based adaptive authentication product and bot/fraud protection product with a high-performance team of data scientists and engineers.</li><li>Build innovative solutions and collaborate with engineering and product partners across the global Visa organization that help secure Visa against a variety of threats and attacks.</li><li>Provide consultation to more experienced leaders in order to recommend solutions which solve security &amp; other business challenges.</li><li>You must have strong technical depth and experience in application of Machine Learning, Deep Learning, and Data Science techniques. On top of that, you should also have a genuine interest in cybersecurity and a desire to build solutions that deliver real impacts to the world. We will rely on your leadership to establish a roadmap and vision as this team engages in existing and new emerging areas.  </li></ul><p><strong>Essential Functions:</strong></p><ul><li>·Cyber Analytics Product: Research innovation in digital authentication using behavior biometrics capabilities, build applied AI based models and engineer them into the product called Visa Behavior Analytics. You will engage in data science and applied AI related activities for a Visa engineered product to protect against account takeover related threats, continuously enhancing it to combat threats in the secure authentication and perimeter defense space.</li><li>Cyber/AI R&amp;D: Research innovation in applying AI to the more general field of cybersecurity, including the protection with and against AI driven technologies, as well as the AI models themselves. You will be using your core competencies around AI and data science and help drive the teams to build models and solutions that work at scale, harnessing Petabytes of data while applying it to products that need to respond with cyber analytics in milliseconds.</li><li>Influence &amp; Collaborate: Be able to present results to a cross section of employees, including C-Level and other senior leadership at Visa. You will engage with internal technology, and cyber teams along with global product orgs. In addition, you will collaborate with colleagues in technology and product offices to establish effective, productive business relationships.</li></ul><h3>Qualifications</h3><p>· 5+ years of relevant work experience with a University Degree <br/> · 3+ years of experience in modern data mining and data science techniques (e.g., regressions, decision trees, ensemble algorithms, neural networks, time series analytics, clustering, anomaly detection, text analytics, etc.)<br/> · Experience in developing and deploying products using Docker, Kubernetes, and the containerization technology stack.<br/> · Experience in development of advanced machine learning and deep learning models such as RNN, LSTM, Graph Neural Networks.<br/> · Data Wrangling: Th