Performance Tester – GenAI

Role: Performance Test Engineer – Generative AI

Experience: 5+ years (with hands-on performance testing in GenAI / LLM-based applications)

Role Overview:

We are seeking a skilled and detail-oriented Performance Tester with strong experience in Generative AI (GenAI) projects. The ideal candidate will be responsible for ensuring scalability, reliability, and optimal performance of AI-powered applications, including Large Language Model (LLM) integrations, conversational AI systems, and Retrieval-Augmented Generation (RAG) pipelines. This role requires expertise in performance engineering, cloud platforms, and testing of AI/ML workloads in production environments.

Key Responsibilities

• Performance Strategy & Planning:

• Define and implement performance testing strategies for GenAI and LLM-based applications.
• Identify performance bottlenecks across APIs, model inference layers, vector databases, and cloud infrastructure.
• Establish performance benchmarks, SLAs, and scalability targets for AI-driven systems.

• Performance Testing & Engineering:

• Design, develop, and execute load, stress, spike, endurance, and scalability tests for GenAI applications.
• Perform performance testing of LLM-powered APIs (e.g., ChatGPT-like applications) hosted on cloud platforms.
• Validate latency, throughput, token usage, concurrency handling, and cost-performance trade-offs.
• Conduct performance validation for RAG pipelines including embedding generation and vector search.
• Analyze model inference time, GPU/CPU utilization, memory usage, and autoscaling behavior.

• Tools & Automation:

• Develop automated performance test scripts using tools such as JMeter, LoadRunner, k6, or Gatling.
• Monitor system performance using APM tools like Dynatrace, AppDynamics, Azure Monitor, or AWS CloudWatch.
• Integrate performance testing into CI/CD pipelines using Azure DevOps or similar platforms.
• Create dashboards and reports for performance metrics and trend analysis.

• Cloud & Infrastructure Testing:

• Conduct performance testing on AI solutions deployed on Azure, AWS, or GCP.
• Validate autoscaling configurations, containerized deployments (Docker, Kubernetes), and serverless architectures.
• Assess performance of vector databases such as Chroma, Pinecone, Weaviate, or FAISS under load.

• Collaboration & Optimization:

• Collaborate with AI engineers, data scientists, DevOps, and architects to optimize model serving and API performance.
• Recommend improvements in prompt engineering, caching strategies, batching, and parallelization.
• Support capacity planning and cost optimization for LLM-based applications.

• Governance & Reporting:

• Document performance test results, bottlenecks, and optimization recommendations.
• Ensure compliance with security and data privacy standards in performance environments.
• Present findings to stakeholders and provide actionable insights.

Key Requirements

• Technical Skills:

• 5+ years of experience in Performance Testing and Engineering.
• Hands-on experience in performance testing GenAI / LLM-based applications.
• Experience working with LLM platforms such as OpenAI GPT models, Gemini, Llama 2, Claude, or Grok.
• Understanding of concepts like tokenization, embeddings, vector search, and RAG architecture.
• Experience testing AI services hosted on Azure AI Services, Azure ML, AWS Bedrock, or Google Vertex AI.
• Proficiency in performance testing tools such as JMeter, LoadRunner, k6, or Gatling.
• Knowledge of API testing tools like Postman or Rest Assured.
• Familiarity with monitoring tools such as Azure Monitor, AWS CloudWatch, Grafana, or Prometheus.
• Experience with containerization (Docker) and orchestration (Kubernetes).
• Basic scripting knowledge in Python or Java for test automation.
• Understanding of CI/CD pipelines and DevOps practices.

• GenAI-Specific Knowledge:

• Experience testing conversational AI applications and chatbot performance.
• Knowledge of inference latency optimization techniques for LLMs.
• Understanding of GPU-based workloads and performance considerations.
• Exposure to agentic frameworks like LangChain, Semantic Kernel, AutoGen, or CrewAI (preferred).
• Experience validating performance of vector databases (Chroma, Pinecone, Weaviate, FAISS).

Qualifications

• Bachelor’s degree in Computer Science, Information Technology, or related field.
• 5+ years of experience in performance testing, with at least 2 years in AI/ML or GenAI projects.
• Experience in testing cloud-native, microservices-based applications.
• Strong analytical and troubleshooting skills.
• Excellent communication and stakeholder management skills.