Java Developer

Aquent (United States); Austin (TX); On-site; USD 140,000 - 190,000; Full time

Job summary

Aquent in Austin, Texas is seeking a Senior Software Engineer to lead secure, high-performance Java services for identity and access management. You will design, build, and operate cloud-native platforms that power millions of secure user interactions, with emphasis on API security, reliability, and modern deployment practices.

You’ll own end-to-end velocity—from code to production—leveraging AI-assisted development, CI/CD, and collaboration with security, SRE, and product teams to deliver

Qualifications

• 6+ years of Java production-grade services experience.
• 6+ years API development with REST and API security.
• Cloud deployment on public cloud platforms.
• 2+ years with OAuth 2.0, OIDC, and SAML 2.0.
• Experience building high-SLA, highly reliable systems.
• Strong distributed systems, concurrency, performance optimization.

Responsibilities

• Design, develop, and maintain high-performance Java services with REST APIs.
• Build cloud-native, horizontally scalable services on public clouds.
• Secure APIs using OAuth 2.0, OIDC, and SAML flows.
• Implement API-first designs with clear contracts and backward compatibility.
• Operate resilient systems with low latency, high throughput, and fault tolerance.
• Contribute to production support, incident response, RCA, and reliability improvements.
• Participate in CI/CD pipelines for automated build, test, deployment.
• Own build → deploy → run lifecycle with monitoring and capacity planning.
• Collaborate with platform, security, SRE, and product teams.

Skills

Java

API development

Security

Cloud

REST APIs

CI/CD

Observability

Job description

Aquent is partnering with a leading financial services organization dedicated to empowering individuals and institutions through innovative technology and robust security. Join a team that operates at the forefront of digital transformation, building mission-critical platforms that ensure secure, high-performance interactions for millions of users.

Unleash Your Engineering Prowess in Identity & Access Management

Are you a seasoned Java Software Engineer passionate about building secure, scalable, and high-performance systems? Imagine shaping the future of digital identity and access management, where your expertise directly impacts the security and seamless experience of users on a massive scale. We are seeking a visionary Senior Software Engineer to design, build, and operate next-generation platforms that leverage cutting-edge Java-based API development, cloud-native deployments, and modern access management protocols. This is an incredible opportunity to own critical services, push the boundaries of performance and reliability, and champion AI-assisted development within a security-sensitive environment.

What You’ll Do: Drive Impact and Innovation

• Designing, developing, and maintaining high-performance Java services, focusing on REST-based APIs and leveraging your deep Security SME knowledge.
• Building cloud-native, horizontally scalable services deployed across public cloud platforms.
• Securing APIs using advanced authentication and authorization flows like OIDC, OAuth 2.0, and SAML.
• Implementing API-first designs with stringent contract discipline, ensuring backward compatibility and clarity.
• Constructing and operating highly resilient systems designed for fault tolerance, graceful degradation, and rapid recovery, meeting strict SLAs for latency (< 50ms), throughput (> 5,000 TPS), availability (≥ 99.9%), and error budgets (< 0.1%).
• Applying advanced resilience patterns including timeouts, retries, circuit breakers, bulkheads, and rate limiting.
• Participating actively in production support, incident response, root cause analysis (RCA), and continuous reliability improvement initiatives.
• Utilizing CI/CD pipelines for automated build, test, and deployment processes.
• Owning the entire build → deploy → run lifecycle, which includes comprehensive monitoring, alerting, and capacity planning.
• Working with containerized workloads and implementing modern deployment strategies such as blue/green, canary releases, and feature flags.
• Actively leveraging AI-assisted development tools to accelerate feature delivery, enhance code quality, improve test coverage, and assist with refactoring, documentation, and troubleshooting.
• Championing responsible and effective AI usage as an integral part of daily engineering workflows.
• Collaborating seamlessly with platform, security, Site Reliability Engineering (SRE), and product teams to deliver comprehensive end-to-end solutions.
• Contributing significantly to architecture reviews, design discussions, and critical technical decision-making processes.

What You’ll Bring: Your Expertise and Qualifications

• 6+ years of strong Java expertise, with proven experience building production-grade services that are highly reliable and performant.
• 6+ years of hands-on API development experience, specifically with RESTful services and robust API security implementations.
• Demonstrated cloud deployment experience on public cloud platforms.
• 2+ years of solid experience with critical Access Management protocols, including OAuth 2.0, OpenID Connect (OIDC), and SAML2.0.
• Proven track record of building and operating high-criticality systems that adhere to strict Service Level Agreements (SLAs).
• Strong understanding of distributed systems principles, concurrency, performance optimization techniques, and system resiliency.
• Extensive experience with observability tools and practices (metrics, logs, traces) and effective production troubleshooting methodologies.

Please note: This position is available on a W-2 employment basis only and is not open to Corp-to-Corp (C2C) arrangements. The client is also unable to provide employment-based visa sponsorship or transfers for this role.