Visa

Senior Data Scientist

Job description

Company Description


As the world's leader in digital payments technology, Visa's mission is to connect the world through the most creative, reliable and secure payment network - enabling individuals, businesses, and economies to thrive. Our advanced global processing network, VisaNet, provides secure and reliable payments around the world, and is capable of handling more than 65,000 transaction messages a second. The company's dedication to innovation drives the rapid growth of connected commerce on any device, and fuels the dream of a cashless future for everyone, everywhere. As the world moves from analog to digital, Visa is applying our brand, products, people, network and scale to reshape the future of commerce.

At Visa, your individuality fits right in. Working here gives you an opportunity to impact the world, invest in your career growth, and be part of an inclusive and diverse workplace. We are a global team of disruptors, trailblazers, innovators and risk-takers who are helping drive economic growth in even the most remote parts of the world, creatively moving the industry forward, and doing meaningful work that brings financial literacy and digital commerce to millions of unbanked and underserved consumers.

You're an Individual. We're the team for you. Together, let's transform the way the world pays.


Job Description


You will leverage cutting-edge technologies to perform statistical profiling, inference, classification, clustering and predictive analysis. As a key member of the technical team, you will create and implement sophisticated machine learning models to help derive new insights to defend against cyber-attacks. You will be working with a large variety of data sets, cutting-edge security technologies, and world-class operation teams to create awesome analytics for security and other business units.

Your responsibilities include:

  • As a member of the security analytics team, you will work closely with other data scientists and data engineers to build, design, engineer, and develop analytical software and services that deliver security functionality and improve security efficiency and capabilities through automation.
  • Utilize information retrieval, data analytics, and statistical modeling techniques to build new machine learning models and apply it to cybersecurity use cases. This will include the entire lifecycle including data acquisition, feature engineering, model development, training, testing, deployment, operationalization, and tuning.
  • Support and optimize other existing analytical models/products.
  • Assist in shaping overall direction, life-cycle management, and leadership for Information Security architecture and technology related to Visa.
  • Communicate clean and persuasive data directly to end users, leadership, and other stakeholders, technical and non-technical.

Qualifications

Basic Qualifications
  • 5 or more years of relevant work experience with a Bachelor’s Degree in Computer Science or at least 2 years of work experience with an Advanced degree (e.g. Masters, MBA, JD, MD) or 0 years of work experience with a PhD

Preferred Qualifications
  • 6 or more years of work experience with a Bachelor’s Degree or 4 or more years of relevant experience with an Advanced Degree (e.g. Masters, MBA, JD, MD) or up to 3 years of relevant experience with a PhD
  • Strong coding skills and experience with Python (including SciPy, NumPy, and/or PySpark) and/or R.
  • Strong scripting skills with Shell script and SQL
  • Knowledge and implementation experience with statistical and machine learning models (regression, classification, clustering, graph models, anomaly detection etc.)
  • Knowledge and experience with API development and automation.
  • Knowledge and experience with stream processing (spark/structured streaming)
  • Knowledge and experience with DB systems such as MongoDB , Cassandra etc.
  • Experience with data visualization tools like Zeppelin, Jupyter Notebook, and Tableau.
  • Knowledge and experience with web applications.
  • Knowledge and experience with A/B testing is a plus.
  • Knowledge and experience with Deep learning with TensorFlow is a plus.
  • Knowledge and experience with Natural Language Processing is a plus
  • Knowledge of cybersecurity domains , risk management and fraud detection is a plus.

Additional Information

Visa has adopted a COVID-19 vaccination policy to safeguard the health and well-being of our employees and visitors. As a condition of employment, all employees based in the U.S. are required to be fully vaccinated for COVID-19, unless a reasonable accommodation is approved or as otherwise required by law

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.

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