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# Senior API Gateway Engineer (Kong / webMethods)

- **Company:** The C.A.S.E. Engineering Group
- **Location:** Washington, DC, United States (Remote available)
- **Experience:** Expert
- **Salary:** $165,000.0 - $190,000.0
- **Contract:** Permanent contract
- **Skills:** Application Programming Interfaces (APIs), Continuous Integration, OAuth, OpenShift, Openid Connect, Zero Trust Network Access, Runbook, Datadog, Rate Limiting, Containerization, Kubernetes, Enterprise Integration, Api Gateway, Appdynamics, Webmethods, Api Management
- **Published:** July 27, 2026
- **Apply:** https://www.indeed.com/viewjob?jk=c6e4e8dbe851a2ec

## About the Role

* Experience:
 * At least 8 years of enterprise integration or API platform engineering experience.
 * At least 5 years of hands-on production experience with enterprise API gateway products.
 * Technical Expertise:
 * Hands-on experience with IBM webMethods API Gateway administration/configuration (strongly preferred).
 * Hands-on experience with Kong Enterprise or Kong Konnect implementation/configuration (strongly preferred).
 * Working knowledge of container platforms (OpenShift or Kubernetes) supporting gateway workloads.
 * Familiarity with CI/CD-integrated gateway configuration, configuration-as-code, and environment promotion.
 * Observability tooling experience (AppDynamics, ELK, OpenTelemetry).
 * Clearance & Security:
 * Must possess U.S. work authorization.
 * Must be able to obtain and maintain a federal Moderate Risk Public Trust (MBI level) background investigation. (Prior federal agency suitability or active federal background investigations are highly desirable).

## Description

As our Senior API Gateway / Platform Engineer, you will serve as the senior technical resource sustaining a high-availability production gateway while leading the engineering execution of a phased migration from IBM webMethods API Gateway to a next-generation gateway platform (e.g., Kong)., * Platform Operations: Operate, configure, and sustain an enterprise API gateway platform supporting ~255 production APIs and 1B+ monthly transactions at a minimum 99.5% availability.

 * Gateway Engineering: Engineer gateway services, routes, policies, plugins, certificates, authentication/authorization integrations, and environment promotion patterns within Zero Trust security boundaries.
 * Phased Migration: Lead installation, configuration, and production-readiness for the new enterprise gateway product. Develop API inventory classification, migration wave plans, dual-run operations, and rollback-ready cutover execution.
 * Testing & Validation: Perform functional, connectivity, security, performance, and observability validation for gateway changes and migrated APIs to produce acceptance-ready test evidence.
 * Security & Compliance: Enforce Zero Trust controls, including OAuth 2.0, OpenID Connect, mTLS, JWT token validation, rate limiting, and least-privilege access.
 * Documentation & Leadership: Produce runbooks, configuration baselines, and release packages. Mentor junior/automation engineers and conduct senior technical reviews of gateway configuration changes.


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