Senior Java Performance Engineer: Latency & Scalability

Aquent; Southlake (TX); On-site; USD 140,000 - 190,000; Full time

Job summary

Aquent is seeking a Senior Individual Contributor to optimize a Java-based high-performance fintech platform in Texas. You will drive latency reduction, scalability, and resiliency across complex systems to impact millions of users daily.

You will develop workloads, diagnostics, and automation, analyze JVM behavior, and guide architectural decisions. Collaboration with distributed teams and production dashboards will be key to maintaining performance and reliability.

Qualifications

• 5+ years in performance engineering, scalability, or production performance analysis.
• 2+ years hands-on Java development.
• Deep Core Java knowledge: JVM internals, concurrency, memory, GC, latency.
• Ability to analyze source code and recommend improvements.
• Experience building workloads, baselines, KPIs, and SLOs/SLAs.

Responsibilities

• Plan and deliver performance, scalability, resiliency, and capacity validation.
• Understand architecture, workloads, dependencies, and production behavior to inform strategies.
• Collaborate with partner teams to define requirements and reports.
• Develop performance test scripts, workload generators, mock services, frameworks, and automation tools.
• Execute load, stress, endurance, scalability, failover, recovery, and resiliency tests.
• Analyze source code, JVM behavior, systems resources, logs, and latency to pinpoint issues.
• Recommend code, configuration, infrastructure, and design improvements (e.g., CircuitBreakers, LoadBalancers).
• Maintain dashboards, reports, diagnostic tools, and runbooks.
• Evaluate new testing/observability tools and integrate them.

Skills

Java

Performance engineering

Linux

Observability

Education

Bachelor's degree in computer science or engineering

Tools

JMeter

Gatling

Splunk

Grafana

Docker

Kubernetes

Python

Shell

Job description

Aquent is seeking a Senior Individual Contributor to optimize a Java-based high-performance fintech platform in Texas. You will drive latency reduction, scalability, and resiliency across complex systems to impact millions of users daily.

You will develop workloads, diagnostics, and automation, analyze JVM behavior, and guide architectural decisions. Collaboration with distributed teams and production dashboards will be key to maintaining performance and reliability.