Staff Software Engineer
Visa
London
Workplace: HybridFull timeFunction: Software EngineeringExperience: 5+ yearsEducation: bachelorsSkills: ["Communication","Mentorship","Collaboration"]Own and evolve Visa’s Edge API Gateway and authentication layer, a critical path for every external API call. You’ll design and maintain Kong gateway components (including Lua plugins), authentication/authorization services, and Java/Spring Boot microservices, while ensuring secure, scalable, and high-quality operations. Lead code reviews and observability improvements using Datadog, create test plans, troubleshoot incidents on-call, and apply security-first patterns (OAuth2/OIDC, mTLS, audit logging).

