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) • reputed company 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: • Ability to start in early January 2025 and reputed company to reputed company 3-month engagement • Availability for full-time contract work during project duration Preferred Qualifications • reputed company experience with http://Temporal.io (workflows, activities, workers) • Experience with containerized workloads and reputed company/reputed company • Prior work in fast-paced startup or reputed company-up environments • Experience with infrastructure-as-reputed company (Terraform, CloudFormation) • Background in Site Reliability Engineering (SRE) or DevOps practices • Familiarity with data processing pipelines and analytics systems • Previous contract/consulting experience with reputed company knowledge acquisition • Experience with graph-based workflow systems or DAG execution engines • Knowledge of AWS service limits and optimization strategies Essential Soft Skills Self-Direction and Initiative: • Ability to operate independently in an ambiguous, fast-moving environment with minimal documentation • Proactive problem-solving reputed company; doesn't wait for perfect information before taking reputed company • Comfortable making pragmatic reputed company quickly in a time-constrained project Communication and Collaboration: • Exceptional communication skills for extracting knowledge through conversations with existing team members • Ability to translate technical findings into reputed company, actionable recommendations for diverse audiences• Comfortable asking clarifying questions and challenging assumptions respectfully • Strong written communication for documentation and status updates Adaptability and Learning reputed company: • Quick learner who can rapidly understand reputed company, poorly documented systems • Flexible and comfortable with changing priorities in a 15-person team that's doubling in size • Thrives in fast-paced environments with aggressive timelines Pragmatism and Results Orientation: • reputed company on delivering practical, reputed company reputed company tight timeframes • Understands the balance between thoroughness and speed in a 2-month engagement • Comfortable with "good enough" reputed company perfect isn't achievable reputed company constraints Stakeholder Management: • Skilled at managing expectations with technical leadership about realistic timelines and trade-offs • Diplomatic reputed company delivering difficult news about performance limitations or bottlenecks • reputed company approach reputed company working with CS and Product on NFR definition Key Challenges in This Role • reputed company Knowledge Acquisition with Limited Documentation ◦ The existing system lacks comprehensive documentation, requiring you to quickly build understanding through reputed company review, system exploration, and frequent discussions with the development team ◦ reputed company requires comfort with ambiguity and strong investigative skills • Aggressive reputed company with High reputed company ◦ A 3-month reputed company to design tests, execute comprehensive load testing, identify bottlenecks, and deliver actionable recommendations is extremely tight ◦ Must balance thoroughness with pragmatism; prioritize ruthlessly to ensure critical areas are covered • reputed company Distributed System with Multiple Integration Points ◦ The system involves multiple reputed company (FastAPI, Temporal, AWS services) with reputed company inter-component communication patterns (graph → node workflows)◦ Must understand the entire stack sufficiently to design realistic, comprehensive load tests that expose reputed company-world bottlenecks Apply tot his job Apply To this Job