Performance Engineer (Software Engineer Sr Lead)

FIS Global • Atlanta, GA

3d

About The Position

About the Role:
We are looking for a Performance Engineer to ensure our Digital One
Business apps are fast, reliable, and scalable under real-world conditions. In this role, you will design and execute performance tests, analyze system behavior, identify bottlenecks, and work closely with engineering teams to improve end-to-end performance across web, mobile, and backend systems.
You’ll act as both a technical expert and a performance advocate, helping teams build products that meet strict performance, scalability, and reliability standards.

Requirements

• Solid performance testing fundamentals
• Strong NeoLoad UI experience, including managing populations, scenarios and test data management
• Solid understanding of web and distributed systems (HTTP, APIs, microservices, caching, queues)
• Experience analyzing system metrics (CPU, memory, disk, network, latency, throughput) and troubleshooting issues
• Proficiency in at least one scripting language (JavaScript preferred)
• Understands CI/CD and modern architectures
• Good understanding of APM tools (Dynatrace, DataDog)
• Strong analytical and problem-solving skills
• Confident with correlation & test data
• Experience building and maintaining dashboards

Nice To Haves

• Experience with cloud platforms
• Experience building a new performance testing strategy from the ground up
• Experience performance-testing large-scale consumer applications
• Knowledge of database performance tuning (SQL and/or NoSQL)
• Experience working in Agile or DevOps environments

Responsibilities

• Design, implement, and maintain performance, load, stress, and endurance tests
• Define and validate performance requirements, SLAs, and SLOs
• Analyze performance test results to identify bottlenecks across application, API, database, and infrastructure layers
• Collaborate with developers, SREs, and architects to diagnose and remediate performance issues
• Monitor application performance in production and support root-cause analysis of performance incidents
• Build and maintain performance testing frameworks, tools, and dashboards
• Integrate performance testing into CI/CD pipelines
• Establish performance baselines and track regressions over time
• Provide actionable recommendations to improve scalability, throughput, latency, and resource utilization
• Document findings and communicate results clearly to technical and non-technical stakeholders

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level
• Number of Employees: 5,001-10,000 employees