Senior Software Engineer, Performance & Resiliency

Location: Southlake, TX Salary: $65.00 USD Hourly - $69.00 USD Hourly Description: Our client is currently seeking a Senior Software Engineer, Performance & Resiliency

Location : Southlake, TX (Primary) | Ann Arbor, MI (Secondary)

Work Arrangement : On-site (4 days/week)

Position Type : Contract-to-Hire, Candidates must be authorized to work in the United States without current or future sponsorship requirements.

About the Role

As a Senior Software Engineer on our Core Systems Performance Engineering team, you will drive performance, scalability, and resiliency initiatives across a high-throughput, low-latency financial trading platform. You will analyze complex distributed architectures, identify system and code-level bottlenecks, and implement solutions across client-side applications, backend services, gateways, and cloud infrastructure.

In this role, you will diagnose JVM behaviors, model high-volume production traffic, and translate deep diagnostic insights into concrete architectural enhancements, capacity plans, and code optimizations.

Responsibilities

Design, develop, and maintain automated performance testing frameworks, load generators, and custom diagnostic tooling using Core Java, Python, and Unix shell scripts.

Build mock services, harnesses, and test utilities to simulate real-world trading traffic and stress system capabilities.

Profile and inspect distributed source code to detect execution bottlenecks, concurrency issues, memory leaks, overhead.

Partner with product managers, system architects, and engineering teams to define performance budgets, non-functional requirements, and service-level objectives (SLOs).

Formulate comprehensive performance test plans, execute benchmark runs, and analyze client-to-backend system telemetry.

Architect and implement resiliency patterns, including circuit breakers, traffic shapers, load balancing strategies, and automated failover mechanisms.

Collaborate with production reliability teams to instrument applications, define key health indicators, and enhance real-time observability using enterprise monitoring stacks.

Minimum Qualifications

Bachelor's degree in Computer Science, Computer Engineering, or a related technical field, or equivalent practical experience.

5+ years of software development experience with Core Java/J2EE across both client and server layers, including Spring, Spring Boot, and Spring Cloud ecosystems.

5+ years of experience engineering distributed, high-throughput, and real-time processing systems utilizing relational databases and messaging middlewares.

Deep understanding of multi-threading, concurrency models, data structures, algorithms, and object-oriented design patterns.

Hands-on experience diagnosing JVM internals, including log analysis, heap profiling, memory leak detection, and thread dump inspection.

Solid practical foundation in Linux environments and shell scripting.

Direct experience implementing system resiliency patterns (e.g., rate limiters, circuit breakers, traffic shapers, graceful degradation).

Hands-on experience with telemetry, metrics aggregation, and observability tools (e.g., Splunk, Grafana).

Preferred Qualifications

Domain experience in financial services, electronic trading, market data feeds, or capital markets systems.

Experience deploying, scaling, and profiling microservices on public cloud platforms (AWS or Google Cloud).

Solid background in continuous delivery, DevOps pipelines, containerized deployments, and automated build processes.

Familiarity with integrating modern AI developer productivity tools within IDE workflows (e.g., IntelliJ IDEA, VS Code).

Medical, dental, and vision insurance are available to qualified candidates who meet eligibility requirements.
By providing your phone number, you consent to: (1) receive automated text messages and calls from the Judge Group, Inc. and its affiliates (collectively "Judge") to such phone number regarding job opportunities, your job application, and for other related purposes. Message & data rates apply and message frequency may vary. Consistent with Judge's Privacy Policy, information obtained from your consent will not be shared with third parties for marketing/promotional purposes. Reply STOP to opt out of receiving telephone calls and text messages from Judge and HELP for help.

Contact:

This job and many more are available through The Judge Group. Please apply with us today!