Senior Software Engineer, MongoDB

Query Integration

Salary not provided
Mid and Senior level
Remote in Canada

Developer data platform

Be an early applicant


Developer data platform

1001+ employees

B2BEnterpriseBig dataCloud Computing

Be an early applicant

Salary not provided
Mid and Senior level
Remote in Canada

1001+ employees

B2BEnterpriseBig dataCloud Computing

Company mission

To empower innovators to create, transform, and disrupt industries by unleashing the power of software and data.


Who you are

  • 4+ years of experience in data management systems
  • 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. Hands-on experience or M.Sc./Ph.D in the domain is a plus

What the job involves

  • The Query Integration team is focused on building user-facing features on top of the core query engine and helping to integrate query with other products in the MongoDB ecosystem
  • This includes enhancing our time-series product, extending language support for analytics, helping grow our Atlas Search and Vector Search products with database support, and adding workload telemetry to provide greater insight into how our database is used
  • Most of our development is in C++, but prior experience in C++ is not required
  • Our testing infrastructure is written in JavaScript and Python
  • Understand and improve current functionality of the MongoDB query engine
  • Contribute high quality C++ code and give and solicit feedback in code reviews
  • Identify, design, implement, test, and support new features related to query performance and robustness, query language enhancements, diagnostics for query performance problems, and integration with other products and tools
  • Work constructively with peers to deliver excellent technical solutions
  • In three months you’ll have contributed to the development of a project slated for the next major version, as well as fixed a few bugs in a minor version of our latest stable release series
  • In six months, you’ll have taken on code review responsibilities and are independently delivering complex functionality and squashing bugs independently
  • In twelve months, you’re contributing to the design of major new features and are helping to mentor new engineers on the team

Otta's take

Theo Margolius headshot

Theo Margolius

COO of Otta

MongoDB is an open-source, cross-platform, document-oriented database system. It stores data as JSON-like documents and is written in C++, Go, JavaScript and Python.

Essentially, the company develops tools and blueprints to help businesses and organisations modernise their legacy applications, migrating them to the MongoDB database and the MongoDB Atlas cloud database. With this initiative, MongoDB is particularly taking aim at Oracle customers with ageing applications running on the Oracle relational database system.

Since its release, MongoDB has become one of the most popularly used NoSQL database systems due to its ease of use and efficiency. It is also the fastest-growing database ecosystem, and boasts hundreds of millions of downloads. Recently, the company announced a partnership with Patronus AI, an automated evaluation and security platform, through which it will bring automated LLM evaluation and testing capabilities to enterprise customers.


Top investors

Some candidates hear
back within 2 weeks

13% employee growth in 12 months


Funding (last 2 of 8 rounds)

Jan 2015



Oct 2013



Total funding: $311.1m

Company benefits

  • Rich health insurance coverage
  • Virtual & on-site fitness classes
  • Health screenings & telemedicine
  • Access to transgender-inclusive health insurance coverage
  • Global and internal mobility opportunities
  • Equity & Employee Stock Purchase Program
  • Pension & retirement programs
  • Income Protection
  • Flexible PTO is offered to every US employee & competitive time off policies for non-US employees
  • Employee Assistance Program
  • Mental health counseling
  • Free meditation app access
  • Fertility & adoption financial assistance
  • Parental counseling for new parents
  • 20 weeks of fully paid gender neutral parental leave & flexible work arrangements
  • 4 weeks of emergency care leave

Company values

  • Think Big, Go Far
  • Build Together
  • Embrace the Power of Differences
  • Be Intellectually Honest
  • Own What You Do
  • Make it Matter

Company HQ

Theater District, New York, NY


Dwight Merriman


Previously CTO and Co-founder at DoubleClick for 10 years, and Chairman at AlleyCorp for 15 years.

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