Senior Performance Test Engineer
5paisa · Bengaluru
- Experience4–6 yrs
- SalaryNot disclosed
- Work modeonsite
- Levelmid
- Posted17 Sept 2026
About 5paisa
5paisa is hiring in Bengaluru in financial services. This role looks for around 4+ years of experience.
Skills
- k6
- JavaScript
- REST APIs
- microservices
- WebSocket
- workload modelling
- performance testing
- Docker
- Kubernetes
- Linux
- Microsoft Azure
- Azure Kubernetes Service
- CI/CD
- distributed tracing
- APM
The role
A performance test engineer at a financial services product company defines scalability strategy and builds k6 suites for REST APIs, microservices, and WebSocket systems. Diagnoses distributed bottlenecks across Kubernetes infrastructure and applies observability to release readiness and capacity decisions.
Full job description
Role Overview: • Own performance strategy, hands-on test engineering and root-cause analysis for distributed business-critical systems. • Work across APIs, microservices, WebSocket/streaming services, databases, and Azure AKS infrastructure. • Mentor junior engineers and influence release-readiness, scalability and capacity decisions.
What You’ll Do: • Define performance NFRs, SLAs/SLOs, workload models, performance budgets and production-like test scenarios. • Build reusable k6 test suites for REST APIs, microservices and WebSocket/streaming workloads. • Execute baseline, load, stress, spikes, endurance, scalability, capacity and resilience tests. • Diagnose bottlenecks using metrics, logs, traces, APM data and Linux, Docker and Kubernetes signals. • Analyze databases, caches, queues, downstream dependencies, autoscaling and AKS resource behavior. • Integrate performance tests and quality gates into CI/CD pipelines. • Communicate performance risks, bottlenecks and actionable recommendations to stakeholders. • Review test designs and scripts and mentor junior performance engineers.
What We’re Looking For: • 4–6 years of hands-on performance testing or performance engineering experience. • Strong expertise in k6 and JavaScript-based performance scripting. • Experience building reusable frameworks with thresholds, checks, custom metrics, parameterization and test-data management. • Experience testing REST APIs, microservices and WebSocket or other realtime/streaming systems. • Strong understanding of workload modelling, latency percentiles, throughput, concurrency, scalability and capacity. • Ability to diagnose bottlenecks across services, databases, caches, queues, containers and infrastructure. • Experience with Docker, Kubernetes, Linux and cloud infrastructure. • Working knowledge of Microsoft Azure and Azure Kubernetes Service (AKS). • Experience using metrics, logs, distributed traces and APM tools for root-cause analysis. • Experience in integrating performance tests with CI/CD pipelines. • Strong communication, documentation and junior-engineer mentoring skills.
Preferred Skills: • Exposure to Model Context Protocol (MCP) or MCP-enabled performance-testing and observability workflows. • Experience with Dynatrace, Grafana, Prometheus or Azure Monitor. • Experience with Redis, Kafka or similar caching and messaging technologies. • Experience in brokerage, capital markets, fintech or another low-latency, highavailability domain. • Trading-domain knowledge.