Job Description
POSITION DESCRIPTION
Sayari is seeking a Senior Software Development Engineer in Test (SDET) to join our Application Engineering team and reinforce the quality, reliability, and performance of our products. This role requires an experienced software engineer with a strong development background who can design and implement robust automated testing frameworks, effectively test complex systems, and collaborate closely with developers to deliver high quality features. Our ideal candidate is highly skilled at designing, building and deploying automated test cases, while being capable of executing tests manually where appropriate.
Our application tier is built primarily in TypeScript (backend and frontend), running in Kubernetes and backed by PostgreSQL, Cassandra, Elasticsearch, and Memgraph. The data ingest tier operates on Spark, processing terabytes of data from hundreds of sources. The platform supports a large-scale knowledge graph sourced from millions of records across over 200 countries and 30 languages. As part of this team, you’ll also contribute to our open-source projects, including our WebGL-powered network visualization library, sayari-analytics.github.io/trellis.
Job Responsibilities
Automate regression tests where possible, performing manual tests when necessary.Design, develop, and maintain scalable automated testing frameworks to validate features across the application stack.Write and execute advanced test scripts for REST APIs and database interactions, ensuring reliability and performance at scale.Collaborate with engineers to integrate tests into CI/CD pipelines, enabling rapid and dependable releases.Create and optimize complex SQL based test cases to validate data integrity and performance across PostgreSQL, Cassandra, and Elasticsearch.Perform root cause analysis on defects, working alongside developers to reproduce issues, suggest fixes, and verify resolutions.Lead test planning and strategy for new features, ensuring comprehensive coverage of functional, integration, and performance requirements.Mentor junior team members on testing best practices, automation techniques, and quality assurance processes.Analyze system performance under load and contribute to scalability testing, identifying bottlenecks and recommending optimizations.Required Skills & Experience
6+ years of experience solving complex technical problems, with 4+ years focused on test automation and software quality assurance.Proven expertise in developing and maintaining automated testing frameworks for large web applications and REST APIs.Proficiency in TypeScript, with the ability to write clean, maintainable test code.Willing to explore use of GenAI to aid in automation test case development, as well as automation harness development.Extensive experience with data validation and testing complex database queries against systems like PostgreSQL, Cassandra, and/or Elasticsearch.Strong knowledge of system architecture and performance testing.Proficiency in writing unit, integration, and end-to-end tests, paired with expertise in DevOps practices, including CI/CD pipelines, Docker, and Kubernetes.Familiarity with debugging and profiling tools to isolate issues in distributed systems.A proactive mindset for identifying edge cases, ensuring robustness, and advocating for quality throughout the development lifecycle.
