# API Security Engineer at Fiserv

- Company: Fiserv
- What the company does: Fiserv is a global fintech and payments company with solutions for banking, global commerce, merchant acquiring, billing and payments, and point-of-sale.
- Company website: https://www.fiserv.com
- Type: Startups
- Level: Mid level
- Location: 3 Locations
- Work setup: On-site
- Posted: 2026-11-05
- Apply by: 2026-12-20
- Apply: https://fiserv.wd5.myworkdayjobs.com/en-US/EXT/job/Berkeley-Heights-New-Jersey/API-Security-Engineer_R-10395871?utm_source=1752vc&utm_medium=careers
- Page: https://www.1752.vc/careers/jobs/fiserv-api-security-engineer/

## 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


Source: 1752vc Careers, https://www.1752.vc/careers/jobs/fiserv-api-security-engineer/