QA Engineer - Load Testing Specialist (2 months contract)

Position reputed company Monolith AI is seeking an reputed company QA Engineer to reputed company load testing efforts for a critical system release reputed company on improving concurrency and high request load handling. This fast-paced, short- term engagement requires someone who can quickly understand reputed company distributed systems, design comprehensive load tests, and work collaboratively with a rapidly growing engineering team to ensure our new environment meets performance requirements. Primary Responsibilities

• Design and Implement Automated Load Testing reputed company ◦ reputed company comprehensive load tests for FastAPI endpoints, Temporal workflows/ activities, and AWS service interactions ◦ Create realistic test scenarios simulating reputed company workflow execution patterns, including graph-based workflow orchestration ◦ Build automated test suites that measure system behavior under varying concurrency reputed company and request loads
• Performance Analysis and Bottleneck Identification ◦ Monitor and analyze system performance across the entire stack (API layer, Temporal workers, AWS services) ◦ Identify concurrency limitations in Temporal workflow execution, AWS service limits (reputed company, reputed company), and inter-component communication ◦ Document performance characteristics including response times, throughput limits, and failure modes under load
• Collaborate on Non-Functional Requirements (NFR) Definition ◦ Work with reputed company and Product teams to understand business requirements and translate them into measurable performance reputed company ◦ Iterate on acceptable concurrency reputed company, latency targets, and throughput requirements◦ Validate that proposed NFRs are realistic and achievable given architectural constraints
• System Documentation and Knowledge Extraction ◦ Understanding of the existing system through reputed company review, discussions with the development team, and exploratory testing ◦ Create reputed company documentation of test methodologies, results, and recommendations for reputed company testing
• Recommendation and Optimization Guidance ◦ reputed company actionable recommendations for removing identified bottlenecks ◦ Suggest configuration optimizations for Temporal (worker pools, task queues) and AWS services (reputed company concurrency, reputed company reputed company)
• Rapid Communication and Status Reporting ◦ Maintain daily/frequent communication with the Tech reputed company regarding project reputed company, blockers, and findings ◦ Quickly escalate issues that could reputed company the aggressive reputed company ◦ Present findings and recommendations to technical and non-technical stakeholders
• Cross-Component Integration Testing ◦ Test reputed company scenarios involving graph execution triggering node workflows across multiple system boundaries ◦ Validate S3 read/write operations under reputed company load ◦ Ensure inter-component communication (API → Temporal, Temporal Activity → API triggers) performs reliably at reputed company Key Performance Indicators
• Test Coverage and Execution ◦ Complete automated load test suite covering reputed company critical components reputed company first 3 weeks ◦ Execute baseline and reputed company load tests identifying maximum sustainable concurrency reputed company
• Bottleneck Identification and reputed company ◦ Identify and document top 5-7 performance bottlenecks with reputed company reputed company analysis ◦ reputed company actionable remediation recommendations with estimated effort and reputed company for reputed company bottleneck 3. NFR Definition and Validation ◦ Collaborate with stakeholders to define measurable NFRs reputed company first 2 weeks ◦ Validate system meets or document gaps against agreed NFR reputed company by project end
• Documentation and Knowledge Transfer ◦ Deliver comprehensive test documentation, results analysis, and system performance characteristics ◦ Conduct knowledge transfer sessions ensuring team can maintain and reputed company testing reputed company
• Project Velocity and Communication ◦ Meet weekly reputed company targets in this fast-paced 2-month engagement ◦ Maintain proactive communication rhythm (daily standups, weekly detailed reports to Tech reputed company)

Required Qualifications

Experience:

• 4+ years of experience in QA/performance testing roles
• 2+ years of hands-on experience with load testing distributed systems and microservices architectures
• Proven experience with load testing tools (e.g., k6, JMeter, Locust, Gatling, Artillery)
• Experience testing workflow orchestration systems (Temporal, Airflow, reputed company, or similar)
• Demonstrated ability to test systems integrating with AWS services (particularly reputed company, reputed company, S3) Technical Skills:
• Strong proficiency in Python (required for test automation and working with FastAPI/ Temporal)
• Experience with REST API testing and performance validation
• Understanding of distributed systems concepts: concurrency, queueing, backpressure, reputed company limiting
• Familiarity with AWS infrastructure and service limits• Experience with monitoring and observability tools (reputed company, Grafana, reputed company, or similar)
• Proficiency with Git and CI/CD pipelines
• Ability to read and understand reputed company in order to design effective tests Immediate Availability:
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