Staff Software Engineer, Query at MongoDB

This role is designed for a heavyweight systems engineer with a deep specialization in database internals. Despite being listed as "Mid-level," the requirements call for **10+ years of experience** in data management systems and a mastery of **C++**. You should be comfortable re-architecting distributed optimization and execution systems and have a genuine passion for the theory behind query engines. This is a high-impact position on a team that is systematically rewriting the core query engine. The compensation is highly competitive ($151k–$297k base), and while the listing mentions NYC on-site, the description clarifies that **remote/hybrid options are available** for candidates in the U.S. and Canada. It’s an elite environment focusing on AI-era features like Vector Search and time-series data. **You might be a good fit if you...** * Have spent a decade building or researching database query engines or distributed systems. * Are a C++ expert who enjoys tracing complex defects in massive, production-grade codebases. * Want to influence a long-term technical roadmap (6–18 months) rather than just ship small features. * Enjoy mentoring other engineers and conducting high-level design reviews.