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Senior API Gateway Engineer - Axway/Java
Job in
Singapore, Singapore
Listed on 2026-10-15
Listing for:
Helius Technologies
Full Time
position Listed on 2026-10-15
Job specializations:
-
Software Development
Backend Developer, Java Developer
Job Description & How to Apply Below
We are looking for an experienced Senior API Gateway Engineer with strong hands-on expertise in Java, enterprise APIs, Axway API Gateway, and API security.
This role will focus on the design, development, deployment, security, and production support of enterprise APIs and integration solutions in a large-scale environment.
Key Responsibilities- Design, develop, enhance, and support enterprise APIs and integration solutions.
- Configure and maintain Axway API Gateway , including policies, routing, security controls, and API lifecycle components.
- Work extensively with Axway Policy Studio, API Manager, and .FED deployments .
- Develop and support Java-based microservices and REST APIs .
- Implement API authentication, authorization, encryption, and security controls.
- Configure and manage OAuth 2.0 flows including:
Client Credentials Authorization CodeJWT Bearer Refresh Token - Implement and support JWT token generation, validation, claims handling, signing, and encryption .
- Manage PGP encryption/decryption, digital signatures, key management, and certificate handling .
- Support SSL/TLS, mTLS, PKI, OpenID Connect, and API threat protection .
- Perform root cause analysis, troubleshooting, and incident resolution for API and gateway-related issues.
- Support API deployments, change activities, governance, and lifecycle management.
- Work closely with application, infrastructure, cybersecurity, architecture, and Dev Ops teams.
- Support performance tuning, monitoring, and continuous improvement of API platforms.
- 6+ years of experience in Java development and API technologies .
- Strong hands-on experience with:
Axway API Gateway Policy StudioAPI Manager.
FED deployments - Strong proficiency in:
JavaMicroservicesREST APIs Maven Git / BitbucketCI/CD pipelines - Strong experience across the full API lifecycle including design, development, deployment, production support, and troubleshooting .
- Deep understanding of OAuth 2.0 and enterprise API security.
- Strong knowledge of JWT, PGP, SSL/TLS, mTLS, PKI, OAuth, OpenID Connect .
- Experience implementing security policies in Axway API Gateway .
- Good understanding of OWASP API Security Top 10 and secure API design principles.
- Strong troubleshooting, incident management, and root cause analysis skills.
Position Requirements
10+ Years
work experience
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