Java Developer needed (Must have API Security Product Experience)

Amtex Enterprises,Inc; Austin, Westlake, Denver, Lone Tree (TX, TX, CO, CO); Hybrid; USD 120,000 - 180,000; Full time

Job summary

Amtex Enterprises Inc. is seeking a Senior Software Engineer in the United States for Java-based API development and security-focused cloud-native work.

The role supports IRIS-like high-throughput, low-latency services with strict SLAs, operating in hybrid mode across Austin, Westlake, and Denver locations. The ideal candidate has 6+ years of hands-on API experience, RESTful services, and strong security expertise (OIDC, OAuth 2.0, SAML).

Qualifications

• 6+ years hands-on API development experience.
• Design, develop, and maintain high-performance Java services.
• Develop and secure APIs using OIDC, OAuth 2.0, and SAML.

Responsibilities

• Design, build, and operate high-throughput, low-latency Java API services.
• Own services with reliability SLAs in a security-sensitive environment.
• Work with cloud-native deployments on GCP or equivalent.

Skills

Java api development

REST APIs

Security SME knowledge

Cloud-native deployments

OIDC

OAuth 2.0

SAML

GCP

Tools

GCP

Job description

Job Title: Java Developer needed (Must have API Security Product Experience)
Duration: 6-12 plus months
Locations: Austin, TX or Westlake, TX or Denver/Lone Tree, CO (In that Order) – Hybrid – 4 days a week, Fridays are remote

Interview: Onsite at one of the locations listed above

We are seeking a Senior Software Engineer to design, build, and operate high-throughput, low-latency, mission-critical platforms. This role focuses on Java-based API development, cloud-native deployments (GCP or equivalent), modern access management protocols, and AI-assisted software development.
You will own services with strict reliability, performance, and availability SLAs, operating at scale in a security-sensitive environment.

• Identity (IAM – Identity and Access Management) & CIAM
• 6+ years Hands-on API development experience, including RESTful services and API security.
• Design, develop, and maintain high-performance Java services supporting REST-based APIs & having good Security SME knowledge.
• Build cloud-native, horizontally scalable services deployed on GCP and/or other public cloud platforms.
• Develop and secure APIs using OIDC, OAuth 2.0, and SAML-based authentication and authorization flows.