Software Engineer (Internal Query Engine Testing Tools), Query

Team Overview

The MongoDB Query Testing Tools Team is hiring Software Engineers to build a state of the art distributed query system. We develop advanced testing frameworks (end to end testing, fuzzing, property based testing) and performance measurement tools, including high volume workload generation, to ship Query Engine features with high confidence in correctness and performance.

The team is part of the Query organization responsible for the MongoDB Query Language and the lifecycle of each query, from parsing to optimization to plan selection. Our engineers maintain and improve optimization and execution frameworks and build new query language features to power customers' critical workloads, always ensuring queries are answered correctly.

This role can be based out of our Cork office, or remotely in the Ireland region.

Candidate Profile

• 3+ years of experience in software development and/or performance engineering
• Fluency in Python, Javascript or Typescript
• Enjoys chasing down difficult problems in a distributed environment
• Able to make complex concepts easy to grasp in written and spoken English
• Able to decompose and solve complex problems and can rapidly iterate by validating new hypotheses and rethinking current assumptions
• Demonstrating hands on experience working with relational or NoSQL databases is a plus
• B.Sc. in Computer Science or related field, or equivalent practical experience. Advanced degrees or experience in database query engines is a plus
• Experience in developing automation test frameworks is a plus
• Experience in query processing engine testing is a strong plus
• Experience in developing performance test plans and monitoring frameworks is a strong plus
• Background in database query engines or compilers is a strong plus

Position Expectations

• Design, develop, and maintain automated testing frameworks, performance automated tests and internal tooling for the MongoDB query engine
• Collaborate 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 scenarios
• Provide feedback in code reviews, focusing on the robustness and reliability of code changes

Success Measures

• Within three months, gain an understanding of MongoDB's MQL syntax and semantics, and contribute to the MongoDB engine internal tooling
• By six months, establish yourself as a key owner of automated test frameworks, and demonstrate improvements in test efficiency and coverage
• After twelve months, be instrumental in ensuring the quality of major new features, setting an example for new team members in best practices for correctness and performance test automation and internal tooling

Equal Opportunities & Accommodations

MongoDB is an equal opportunities employer. MongoDB is committed to providing any necessary accommodations for individuals with disabilities within our application and interview process. To request an accommodation due to a disability, please inform your recruiter.