Fiserv is a global fintech and payments company with solutions for banking, global commerce, merchant acquiring, billing and payments, and point-of-sale.
About the role
Runtime API protection: Implement and tune runtime controls (e.g., behavioral detection, anomaly and abuse prevention, bot defense, schema enforcement, mTLS/OAuth validation, rate limiting, and threat response) across API gateways, service mesh, and edge layers. Found on 1752vc Careers, the job board for startup and VC roles.
What they're looking for
- 5+ years related IT and cyber protection experience desired
- Strong foundation in API security concepts: authN/authZ (OAuth2/OIDC, JWT), session/token handling, scopes/claims, rate limiting, schema validation, and common API abuse patterns
- Practical experience with runtime protection in one or more of API gateways, WAF/WAAP, service mesh, ingress controllers, or specialized API security platforms
- Experience building automation in CI/CD and cloud-native environments (policy-as-code, scripting, pipelines, Git-based workflows)
- Comfort collaborating across security, SRE, platform, and application teams with clear communication, pragmatic decision-making, and strong follow-through
More about this role
We're Fiserv, a global leader in Fintech and payments, and we move money and information in a way that moves the world. We connect financial institutions, corporations, merchants and consumers to one another millions of times a day - quickly, reliably, and securely. Any time you swipe your credit card, pay through a mobile app, or withdraw money from the bank, we're involved. If you want to make an impact on a global scale, come make a difference at Fiserv.
Job Title
API Security Engineer
You will help build a best-in-class API security program designed for the speed of modern financial services and shape how APIs are secured end-to-end, design through runtime, using cutting-edge protection technologies and analytics, partnering closely with top engineers across product, platform, and security. You will help turn API telemetry into actionable intelligence, reduce risk at scale, and raise the bar for secure engineering across the organization. As an API Security Engineer, you will focus on protecting critical API ecosystems by combining secure-by-design guidance, runtime protections, automation, and data-driven governance. You will be hands-on with modern API security capabilities...
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