What You'll Do
Design and run performance, load, stress, soak, and scalability tests for applications, APIs, and data pipelines, in close partnership with developers and business SMEs.
Performance-test AI systems (LLM gateway, shared RAG services, MCP servers, and agents), measuring time to first token, end-to-end latency, throughput, concurrency limits, rate-limit behavior, and token cost per transaction.
Build AI-assisted test automation: use LLMs and agents to generate scripts, create realistic synthetic workloads and data, triage results, and draft reports.
Integrate performance tests into CI/CD pipelines with SLO-based thresholds and gates so regressions are caught before release.
Instrument and monitor systems with observability tooling, diagnose bottlenecks across the application, database, network, and infrastructure layers, and recommend fixes.
Build evaluation harnesses that track AI output quality alongside performance, so speed and cost optimizations do not quietly degrade answers.
Run workshops with engineering and business teams on performance testing practices and on using tools like Claude Code in testing workflows.
Feed benchmarks, patterns, anti-patterns, and platform gaps back into the Center of Excellence so the next engagement moves faster.
Must Have Experience
Hands-on performance testing of production systems using tools such as JMeter, k6, Gatling, or Locust.
Production-quality code in at least one of Python, JavaScript/Node, or Java/.NET, enough to build custom load generators and test automation.
Experience with observability and APM tools (such as Datadog, Dynatrace, New Relic, Grafana, or Azure Monitor) and with analyzing metrics, traces, and logs to find root causes.
Working knowledge of cloud infrastructure (Azure or AWS) and containers, and of how relational, NoSQL, and vector data stores behave under load.
Used AI tools or LLM APIs in real engineering or testing workflows, with a grounded understanding of how LLM systems behave under load: token limits, rate limiting, streaming, caching, and concurrency.
Traits
Strong written and verbal communication; able to explain results and risk to non-engineers.
Pragmatic judgment on what to test, how deep to go, and when results are good enough to ship.
Systems thinking with a focus on failure modes; AI helps write the tests, you own the results.
Comfort running multiple agents and automations in parallel as part of daily workflow.
Why This Role
JLL. A Fortune 200 company and a global leader in commercial real estate, with the stability of a $20B+ business and the resources to invest seriously in AI.
The team. You sit at the seam of the business, product, and engineering, with a direct line into JLL's central AI platform via the Center of Excellence. Your findings are visible from business leadership on down.
The role. The systems you test are the agents and platforms thousands of JLL employees rely on every day, and your work decides whether they hold up at scale. You will see the impact within weeks, not quarters.
If this job description resonates with you, we encourage you to apply, even if you don’t meet all the requirements. We’re interested in getting to know you and what you bring to the table!
At JLL, we harness the power of artificial intelligence (AI) to efficiently accelerate meaningful connections between candidates and opportunities. Using AI capabilities, we analyze your application for relevant skills, experiences, and qualifications to generate valuable insights about how your unique profile aligns with the specific requirements of the role you're pursuing.
Location
On-site –Bengaluru, KA
Scheduled Weekly Hours
40
If this job description resonates with you, we encourage you to apply even if you don’t meet all of the requirements. We’re interested in getting to know you and what you bring to the table!
At JLL, we harness the power of artificial intelligence (AI) to efficiently accelerate meaningful connections between candidates and opportunities. Using AI capabilities, we analyze your application for relevant skills, experiences, and qualifications to generate valuable insights about how your unique profile aligns with the specific requirements of the role you're pursuing.
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