Non-Functional Testing Engineer

Team Context

The Prime Services horizontal team is a critical component of our engineering organization, focusing on delivering robust and high-performance solutions tailored to the unique demands of Prime Services applications. Within this structure, the Non-functional team acts as a horizontal gating function, ensuring the scalability, robustness, and overall resilience of our applications through rigorous and effective testing methodologies. We are committed to upholding the highest standards of application quality, performance, and stability across Prime, Futures, and Clearing applications.

Your Role as Engineer

As a Non-Functional Testing Engineer (AVP), you will be a hands-on technical expert focused on the execution and delivery of non-functional testing initiatives for Prime, Futures, and Clearing applications. You will apply your strong technical expertise in performance engineering, observability, and systems profiling to ensure applications meet stringent performance, scalability, reliability, and security requirements. Your primary focus will be on:

• Execution & Delivery: Designing, developing, and executing comprehensive non-functional testing strategies and plans, ensuring high-quality delivery.
• Technical Deep Dive: Applying deep technical knowledge to conduct hands‑on testing, detailed analysis, and tuning, directly contributing to the optimization of application performance.
• Tooling & Automation: Developing and maintaining advanced testing frameworks, tools, and simulations that mimic real‑world operational scenarios, including performance test scripts and automation.
• Collaboration & Integration: Working closely with development, architecture, DevOps, Production Support, and UAT teams to integrate non-functional testing into CI/CD pipelines and embed requirements early in the development lifecycle.
• Problem Solving: Identifying and analyzing performance bottlenecks, failure points, and risks within application architectures, and providing actionable insights for resolution and optimization.

Key Responsibilities

• Design, develop, and execute comprehensive Non‑Functional Testing (NFT) strategies including performance, load, stress, endurance, and resiliency testing for Prime, Futures, and Clearing applications.
• Integrate non‑functional testing into CI/CD pipelines, ensuring continuous quality assurance.
• Develop and maintain robust performance test scripts, scenarios, and realistic workloads.
• Perform in‑depth application profiling and tuning, including heap and thread dump analysis, Splunk and other log profiling, SQL profiling, and AWR analysis.
• Actively identify performance bottlenecks and architectural limitations, providing actionable recommendations to improve throughput, latency, scalability, and capacity.
• Support capacity planning initiatives and proactively address gaps between production and performance environments.
• Contribute to observability and monitoring capabilities using industry‑standard tools and practices.
• Participate in performance defect triage and root cause analysis to resolve complex performance issues.
• Support resiliency and reliability initiatives, including controlled failure testing and chaos engineering exercises where applicable.
• Ensure strict adherence to Non‑Functional Testing standards, processes, and best practices throughout the SDLC.

Experience

• 5‑7 years of hands‑on experience in Performance Testing and Performance Engineering, with a proven track record in optimizing complex financial applications.
• 2‑3 years of practical experience specifically in Chaos Engineering, designing and executing experiments to validate system resilience and fault tolerance.
• Excellent knowledge of performance engineering principles, observability techniques (including tools such as Splunk and Grafana), resiliency patterns, and SRE practices.
• Proficient in identifying bottlenecks and recommending optimization strategies to improve application throughput and capacity.

Technical Skills

• Software Development Lifecycle & Methodologies: Extensive experience in Agile practices, project management, and issue tracking using Jira.
• Performance Engineering Tools: Proficient with LoadRunner, LoadRunner Enterprise, and JMeter, along with custom scripting for test automation.
• Observability & Monitoring Platforms: Experience with AppDynamics, Splunk, Grafana, and the ELK stack.
• Cloud Native & Distributed Technologies: Containerization and orchestration technologies such as OpenShift and Kubernetes, and distributed messaging systems like Kafka.
• Programming & Database Expertise: Programming languages (e.g., Python, Java) and database technologies (Oracle, PostgreSQL, SQL).
• Documentation & Collaboration: Working knowledge of Confluence for documentation and knowledge management.

Communication & Collaboration

• Strong analytical and problem‑solving skills.
• Effective verbal and written communication skills for interacting with technical and business stakeholders.
• Proven ability to collaborate effectively with distributed, cross‑functional technology teams.
• Willingness to mentor junior engineers on non‑functional testing concepts and tools.

Education Qualification

• Bachelor’s degree in Computer Science, Information Systems, or equivalent practical experience.

Equal Opportunity Employer

Citi is an equal opportunity employer, and qualified candidates will receive consideration without regard to their race, color, religion, sex, sexual orientation, gender identity, national origin, disability, status as a protected veteran, or any other characteristic protected by law.

If you are a person with a disability and need a reasonable accommodation, application tools and review processes are available to assist you.

View Citi’s EEO Policy Statement and the Know Your Rights poster.