Senior SDET – (India)

Responsibilities

• Analyze distributed system APIs to validate correctness, consistency, and failure handling across services involved in account creation, data persistence, and related record-linking
 
• Execute pre-approved request variations and boundary-validation scenarios using sanitized tracer payloads against designated staging endpoints
 
• Investigate system behavior under malformed, malicious, or unexpected inputs and document findings clearly
 
• Capture complete request/response evidence, including HTTP status codes, latency, headers, and payload bodies, subject to approved data-handling requirements
 
• Validate behavior of near-real-time inline checks (evaluated within milliseconds at the gateway) as distinct from longer-running background verification/risk pipelines (evaluated over minutes to hours), confirming each layer of defense behaves as expected
 
• Verify data persistence, referential integrity, and correct linkage of related records/relationships written by backend services during processing
 
• Execute controlled replay suites and compare expected versus observed API behavior
 
• Correlate replay results with the API schemas and network evidence produced by the Middleware SDET
 
• Document observable account/CID lifecycle behavior and downstream state changes for handoff
 
• Capture and archive test logs and evidence in a structured, retrievable format to support audits and post-incident reviews
 
• Collaborate with backend engineering teams to reproduce, isolate, and validate fixes for distributed-system defects
 
• Contribute to test strategy for backend/middleware reliability, including failure-mode and chaos-style testing
 
• Maintain traceability between test evidence, defects, and system requirements
 
• Reconcile backend observations with the frontend FSM and middleware/API evidence produced by earlier workstreams

Required Qualifications

• Strong experience of 5-8+ years in testing distributed systems and analyzing inter-service API behavior
 
• Hands-on experience with request payload tampering, fuzzing, or adversarial API testing techniques
 
• Understanding of layered defense architectures, including the distinction between synchronous/inline validation and asynchronous/background verification processes
 
• Familiarity with testing data persistence and relational/hierarchical integrity in backend data stores
 
• Demonstrated discipline in test log archival, evidence capture, and structured documentation practices
 
• Solid understanding of backend/middleware architecture, failure modes, and system boundaries
 
• Familiarity with API testing tools and scripting for building custom fuzzing/tampering test cases
 
• Strong analytical and investigative skills for root-causing complex, systemic defects
 
• Experience executing controlled API replay or staging validation is strongly preferred
 
• Experience correlating API responses with observable application/account lifecycle states is preferred
 
• Experience supporting audit, compliance, or evidence-based reporting requirements is a plus
 
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