# Staff Software Engineer - Query Execution

**Company:** [MongoDB](https://hotfix.jobs/companies/mongodb)
**Location:** Remote
**Role:** Backend Engineering
**Salary:** $151k – $297k/yr
**Experience:** 10+ years
**Skills:** C++, Query Engine Development, Database Internals, Data Structures, Algorithms, Software Architecture, MongoDB, Distributed Systems, Systems Programming
**Posted:** 2026-05-13

> Develops and optimizes MongoDB's core query execution engine, converting logical plans to efficient physical operators for transactional and analytical workloads. Requires 10+ years in query engines/database internals, C++ expertise, and technical leadership.

## Job Description

## Candidate Profile

- 10+ years of hands-on, professional experience in query engine development or database internals
- Experience with building production-level code with a large user base, robust design structure and rigorous code quality
- Degree in Computer Science or similar field, or equivalent practical experience, with strong competencies in data structures, algorithms, and software design/architecture
- Experience with large code bases written in **C++** or another systems programming language. You'll need to trace down defects, estimate work complexity, and design evolution and integration strategies as we rewrite different components of the system
- Proven track record of technical leadership: demonstrated ability to define and drive roadmaps for a component over the medium term
- Passion for the theory and practice of database query engines, as well as hands-on or academic experience in the database domain

## Position Expectations

- Play a key role in defining the 12-month roadmap for Query Execution by researching state-of-the-art systems and leveraging your deep knowledge of industry trends to provide technical vision and direction
- Take direct responsibility for delivering on long-term (6-18 month) goals to innovate in high-performance query execution and other areas of responsibility, co-ordinating initiative-level strategy and personally writing well-tested, production-ready **C++** code
- Advise management on key decisions related to our architecture and processes, and collaborate with stakeholders across the company on large initiatives
- Influence and grow team members through active mentoring, coaching, and leading by example, helping to cultivate a strong talent bench through interviewing and knowledge sharing

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