Lead Software Engineer

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.     The Opportunity: We are looking for a versatile, curious, and energetic Lead Software Engineer who embraces solving complex challenges on a global scale. As a Visa Engineer, you will be working on multiple projects and work as an integral part of a cross-functional development team. This position is for an Engineer focused on Encryption-related enhancements within the Connex Advantage switching application.This collaborative, team-based role will require a close working relationship with Product owners, Software Architects, Quality Assurance, Technical Writers, UI Designers, Key Custodians and other Software Engineers.The Work itself: Prepare technical documents, develop code, review code, build environment, review test results, and prepare plan for implementationAnalyze technical impact, stability, and functionality due to any custom changeEvaluate code to ensure it is valid, meets industry standards and is compatible with devices and/or operating systemsConfer with management or development teams to prioritize needs, resolve conflicts, and help choose solutionsDevelop or validate test routines and schedules to ensure that test cases mimic external interfacesLead design reviews and provide guidance to junior team members who are participating in design reviews.Review design documentation with engineering team members, senior project members, and architects to validate design for completeness and ensure alignment with requirements across an application, project, or product.Proactively identify defects in software code and isolate/contain the defects to prevent customer impact.Build partnerships with product management to ensure that the products being built deliver real valueIdentify problems uncovered by testing or customer feedback and correct problemsDesign and implement encryption controls for the Connex Advantage switch across data in transit and at rest, including strong TLS configurations (TLS 1.2/1.3, mTLS), authenticated encryption modes, and secure key storage.Own and drive PCI DSS compliance activities relevant to switching (scope definition, compensating controls, evidence collection, and QSA engagement), ensuring continuous compliance and scope reduction.Work with Hardware Security Modules (HSMs) for payments use cases (e.g., key generation/rotation, key ceremonies with dual control and split knowledge) and support DUKPT, TR‑31 key blocks, TR‑34 remote key loading, and PIN/PAN protection.Define monitoring, logging, and incident response for cryptographic controls Maintain cryptographic inventories, key custody records, and certificate/PKI hygiene.Essential Functions:Provides strategic technical and functional knowledge of the e-commerce platform as well as a thorough understanding of the business to direct strategy on collecting and understanding requirements.Leads meetings with product partners to recommend development and solution strategies that improve the design and functionality of interface features across a range of payment products.Formalizes Standard Processes on the use of programming languages (e.g. HTML, C, Java) to write code that fulfills website modification requests and technical requirements.Leads and plans the piloting and integration of new technology capabilities and features that enhance the user website experience across e-commerce products.Analyzes patterns across bugs and implements systemic solutions to ensure websites remain functional and easy to use.This is a hybrid position. Expectation of days in office will be confirmed by your hiring manager.Visa will accept applications for this role until at least September 19, 2025.