Visa is a well-established service provider in the banking vertical. London, United Kingdom is the location of their main location.
Right now, Software Design, Software Engineering, and Software Architecture are frequently searched for professions at Visa. They recruit for offices in Foster City, CA, Austin, TX, Singapore and 13 other locations within United Kingdom and Mexico. See below for a list of 206 job offers at Visa for jobs like "Senior Director, Small Business Product" and "Manager, Corporate Responsibility & Sustainability Reporting & Transparency".
Wikipedia provides a helpful article about Visa. Check out their social profile on Instagram for a different perspective. A resource not to neglect is the company's careers page with more information about job offers and career prospects.