Come work at a place where innovation and teamwork come together to support the most exciting missions in the world! Performance Engineering Lead Location: Pune / Hybrid (3 days in office) Experience: 7+ Years Employment Type: Full-Time About the Role We are looking for an experienced and highly motivated Performance Engineering Lead to drive performance validation, scalability assessment, and performance optimization across a modern cloud-native platform. The ideal candidate will have strong expertise in distributed microservices architectures, Kubernetes environments, messaging systems, APIs, big data workloads, and performance troubleshooting. The role requires both hands-on technical excellence and leadership capabilities to plan, execute, analyze, and drive performance initiatives across release cycles while collaborating closely with development, architecture, operations, and customer-facing teams. Key Responsibilities Performance Strategy & Leadership Own performance engineering activities across multiple releases and product roadmaps. Define performance testing scope, objectives, workload models, success criteria, and capacity planning requirements. Plan, track, and deliver performance testing activities within release timelines. Provide regular performance status updates, risk assessments, and recommendations to stakeholders. Mentor and guide performance engineers and establish performance engineering best practices. Performance Testing & Engineering Design and execute performance, load, stress, endurance, scalability, spike, and capacity tests. Validate performance of cloud-native applications running on Kubernetes (K8s). Build realistic workload models that simulate production-scale traffic and customer usage patterns. Establish performance baselines and continuously improve system scalability and reliability. Microservices Performance Analysis Perform detailed root cause analysis and optimization recommendations for applications leveraging: Kubernetes-based microservices Kafka-based event-driven architectures REST and GraphQL APIs Redis caching layers Oracle databases Elasticsearch clusters Spark-based batch and streaming workloads Analyze system behavior across: CPU utilization Memory consumption Thread utilization Garbage collection Network latency Resource contention Database bottlenecks Cache efficiency Message processing delays Kafka & Messaging Performance Design and execute load testing for Kafka-based service-to-service messaging systems. Analyze consumer lag, throughput, partition distribution, batching efficiency, and message processing latency. Tune Kafka producer, broker, and consumer configurations to optimize performance. Identify bottlenecks and provide recommendations to engineering teams for scalability improvements. API Performance Engineering Validate latency, throughput, concurrency, error rates, and service-level objectives (SLOs). Perform end-to-end performance analysis across distributed API ecosystems. Identify bottlenecks in service interactions and recommend optimizations. Spark Performance Optimization Analyze Spark batch and streaming job performance. Investigate executor utilization, partitioning strategies, shuffle operations, memory management, and query execution plans. Recommend performance improvements to reduce execution time and infrastructure costs Performance Diagnostics & Optimization Conduct deep-dive investigations into production and pre-production performance issues. Collaborate with developers to identify root causes and implement fixes. Review architecture and code changes from a scalability and performance perspective. Recommend improvements in application design, infrastructure configuration, caching, database queries, and messaging patterns. Customer issues: Investigate customer-reported performance and scalability issues. Reproduce production scenarios and provide actionable recommendations. Work with support and engineering teams to ensure timely resolution of customer-impacting performance problems. Test Data & Automation Design and develop scalable test data generation frameworks. Create automation utilities and performance engineering tools. Develop scripts and utilities using Python, Java, or similar programming languages to support performance testing and analysis. Required Skills & Qualifications Experience 7+ years of experience in Performance Testing and Performance Engineering. Proven experience leading performance initiatives for enterprise-scale applications. Strong understanding of distributed systems and cloud-native architectures. Technical Expertise Kubernetes (K8s) and containerized environments Microservices architecture Apache Kafka API performance testing and diagnostics Redis Oracle Database Elasticsearch Apache Spark Linux system performance analysis Performance Testing Tools Experience with one or more: JMeter Gatling LoadRunner k6 Locust BlazeMeter Monitoring & Observability Hands-on experience with: Grafana Prometheus Kibana Elastic Stack Dynatrace AppDynamics OpenTelemetry Programming & Automation Strong scripting/programming experience in: Python Java Join our talent community and receive the latest Qualys news, content, and be first in line for new job opportunities. Join our Talent Community! Qualys, Inc. (NASDAQ: QLYS) is a pioneer and leading provider of disruptive cloud-based security, compliance and IT solutions with more than 10,000 subscription customers worldwide, including a majority of the Forbes Global 100 and Fortune 100. Qualys helps organizations streamline and automate their security and compliance solutions onto a single platform for greater agility, better business outcomes, and substantial cost savings.

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