Senior QA Engineer - Performance & Data Platforms
PolandContractSenior
Salary not disclosed
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Job Details
- Languages
- Fluent English
- Experience
- 5+ years
- Required Skills
- AWSPythonJMeterRESTful APIsDatabricks
Requirements
- 5+ years in QA engineering with a heavy focus on performance testing
- Hands-on expertise with tools like JMeter, Gatling, k6, or equivalent
- Deep experience testing REST APIs at scale (backend-centric role)
- Familiarity with cloud data platforms (Databricks, AWS)
- Understanding of data platform architecture
- Multi-tenant SaaS experience (data isolation, auth flows, concurrent user scenarios)
- Strong scripting skills for automation
- Fluent English
- Experience testing Databricks or Spark pipelines (nice to have)
- Background in FinTech or financial data platforms (nice to have)
- Proven track record of building performance testing frameworks from scratch (nice to have)
Responsibilities
- Performance-test a multi-tenant enterprise data platform
- Load and stress test customer-facing Data Sharing APIs and data access endpoints
- Throughput and concurrency test multi-tenant authentication and access control systems
- Validate performance of data ingestion and delivery pipelines under enterprise-scale load
- Stress test tenant data segregation logic to validate correctness and security under heavy concurrent load
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