The MongoDB Query Testing Tools Team is hiring Software Engineers who want to join us in building a state-of-the-art distributed query system. Our Team builds tooling that allows us to ship Query Engine features with high confidence in both correctness and performance, making it a great fit if you like seeing your work protect real customers at scale. The team develops advanced testing frameworks (end-to-end testing, fuzzing, property-based testing) as well as performance measurement tools, including high-volume workload generation tools.The team is part of the Query organization which is responsible for the MongoDB Query Language and the lifecycle of each query, from parsing to optimization to plan selection; our engineers work on maintaining and improving our optimization and execution frameworks and building new query language features to help power our customers' critical workloads. Throughout all our work, our highest priority is always ensuring that customer queries are answered correctly. The successful applicant will be responsible for helping us to maintain the highest standards of quality through rigorous development, testing and automation strategies.This role can be based out of our Cork office, or remotely in the Ireland region.Candidate Profile3+ years of experience in software development and/or performance engineeringFluency in Python, Javascript or TypescriptEnjoys chasing down difficult problems in a distributed environmentAble to make complex concepts easy to grasp in written and spoken EnglishAble to decompose and solve complex problems and can rapidly iterate by validating new hypotheses and rethinking current assumptionsDemonstrating hands‑on experience working with relational or NoSQL databases is a plusB.Sc. in Computer Science or related field, or equivalent practical experience. Advanced degrees of experience in database query engines is a plusExperience in developing automation test frameworks is a plusExperience in query processing engine testing is a strong plusExperience in developing performance test plans and monitoring frameworks is a strong plusBackground in database query engines or compilers is a strong plusPosition ExpectationsDesign, develop, and maintain automated testing frameworks, Performance automated tests and internal tooling for the MongoDB query engineCollaborate closely with peers to understand new features and functionalities, ensuring testability, test frameworks, tooling and coverage for automating tests of both happy-path and edge-case scenariosProvide feedback in code reviews, focusing on the robustness and reliability of code changesSuccess MeasuresWithin three months, you have gained an understanding of MongoDB's MQL syntax and its semantics, as well as the behavior of our unique query engine. You have contributed to several code bases on Mongodb engine internal toolingBy six months, you have established yourself as a key owner of automated test frameworks, and demonstrated improvements in test efficiency and coverageAfter twelve months, you are instrumental in ensuring quality of major new features, setting an example for new team members in best practices for correctness and performance test automation and internal toolingMongoDB is an equal opportunities employer.MongoDB is committed to providing any necessary accommodations for individuals with disabilities within our application and interview process.
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