- Company: MongoDB
- Location: London, United Kingdom
- Job type: Full-time
✅ Visa sponsor check: MongoDB UK Limited (London) is on the UK Home Office register of licensed sponsors for Skilled Worker, Global Business Mobility: Senior or Specialist Worker (A rating), checked 20 October 2026. Being a licensed sponsor doesn’t guarantee sponsorship for this role: confirm it with the employer, and never pay anyone for a Certificate of Sponsorship.
About the role
MongoDB is looking for a Senior Software Engineer to join the Query Execution Team. You will work remotely in the United Kingdom on developing a high-performing, reliable, and modular distributed query system. This team powers critical customer workloads by implementing execution algorithms, building new query language features, and tuning database performance.
Responsibilities
- Understand and improve the current functionality of the MongoDB query engine.
- Contribute high-quality C++ code and participate actively in code reviews.
- Identify, design, implement, test, and support new features related to query performance, robustness, and language enhancements.
- Develop diagnostics for query performance problems and integrate with other products and tools.
- Collaborate with peers to deliver excellent technical solutions.
Requirements
- 5+ years of experience in systems programming.
- Hands-on experience building industrial-strength software.
- Solid computer science fundamentals, including data structures, algorithms, and software design.
- Experience with large code bases, preferably in C++, C, Rust, or a similar compiled language.
- B.Sc in Computer Science or a similar field, or equivalent practical experience.
- Experience in databases or data management systems is a significant advantage.
- Interest in the theory and practice of database query engines; hands-on experience or an M.Sc./Ph.D. in the domain is a plus.
Pay and benefits
The job advertisement does not specify a salary range. MongoDB offers a supportive culture with benefits including fertility assistance, a generous parental leave policy, and employee affinity groups. The company is an equal opportunities employer and provides accommodations for individuals with disabilities during the application and interview process.
How to apply
Apply directly on MongoDB’s own careers website. Omadaily never charges job seekers.
