Software Engineer 3, Query Integration

MongoDB•Austin, NY

5d•Remote

About The Position

The Query Integration team at MongoDB is responsible for making MongoDB's data capabilities seamless and accessible. Their mission is to build intuitive, user-facing features on top of the core query engine and integrate it deeply with the broader MongoDB ecosystem. The team works on features for time-series databases, analytical language capabilities, and scales Atlas Search and Vector Search products. They operate in a dynamic environment using C++ for core development and JavaScript and Python for testing infrastructure. This role can be based in US or Canadian offices, or remotely within North America.

Requirements

3+ years of experience in computer programming
Hands-on experience building industrial-strength software
Solid computer science fundamentals, with strong competencies in data structures, algorithms, and software design/architecture
Experience with large code bases, preferably in C++
B.Sc. in Computer Science or similar field, or equivalent practical experience
Interest in the theory and practice of database query engines.

Nice To Haves

Experience in databases and/or data management systems is a huge plus, but not a requirement
Hands-on experience or M.Sc./Ph.D in the domain is a plus

Responsibilities

Develop and scale new query capabilities that directly impact time-series, Atlas Search, and Vector Search products, while adding workload telemetry for greater database insights.
Contribute high-quality, maintainable code primarily in C++ and gain a deep, working understanding of the MongoDB query engine.
Work constructively with peers to design, implement, and support robust technical solutions, while giving and receiving meaningful feedback in code reviews.
Build comprehensive testing suites in Python/JavaScript and implement diagnostics to help identify and resolve complex query performance problems.