SDET – API/Middleware

• Design, build, and maintain automated API test suites for gRPC-Web, Proto3, HTTP/2, and JSON-RPC/REST services
• Export clean, sanitized HAR/network evidence while maintaining traceability between UI actions and network requests
• Map schemas, headers, identifiers, routing information, and client-injected parameters
• Inspect, intercept, and validate client-server network traffic using Mitmproxy, Charles Proxy, and browser DevTools
• Develop and maintain API automation scripts using Python, Postman, and cURL
• Analyze protocol-level request/response behavior for serialization, encoding, and transport defects
• Inspect and validate request payloads, including auth tokens, routing identifiers, and hidden parameters
• Collaborate with backend and middleware engineers on testable contracts and edge-case scenarios
• Improve test automation frameworks for reliability, speed, and maintainability
• Document technical findings, automation coverage, and protocol-level limitations
• Produce sanitized network evidence and controlled, benign tracer replay scripts for downstream backend validation

• Strong hands-on expertise of 3-5+ years with gRPC-Web, Proto3, HTTP/2, and JSON-RPC/REST protocols
• Proficiency with Mitmproxy, Charles Proxy, and browser DevTools
• Solid scripting/programming skills in Python
• Practical use of Postman and cURL for API automation
• Experience designing and maintaining automated test suites for middleware or API-layer services
• Working understanding of API request structures, headers, auth tokens, and internal/system parameters
• Understanding of version control, CI integration, and code review
• Strong debugging skills at the network/protocol level
• Experience analysing browser-generated network traffic and reconstructing API behaviour is strongly preferred
• Experience with HAR analysis, API schema reconstruction, or controlled API replay is strongly preferred
• Ability to work within approved staging/test environments and follow defined data-handling and test-authorization requirements

• Work on projects that fit your schedule
• Access to diverse content types
• Structured learning and development opportunities
• Career paths that can lead to permanent roles
• Real-time assistance from the Community Experience team
• Global community participation
• Flexible freelance work arrangements