MongoDB Verified

Software, Database, Cloud Computing, Enterprise Software

Senior Software Engineer

Georgia, United StatesFull TimeSenior$126,000–$248,000 /yrPosted 2 months agoVisa sponsorship available

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Role summary

MongoDB is seeking a Senior Software Engineer for its Database Experience (DBX) Team. This role focuses on building and supporting open-source libraries and tools for developers using MongoDB, with a specific emphasis on the .NET/C# ecosystem. The ideal candidate will have 5+ years of experience in high-quality software development, particularly in C#, and possess a strong understanding of data structures, algorithms, networking, and concurrent programming. Experience with databases (relational or non-relational) is required. Preferred qualifications include contributions to open-source projects, familiarity with modern .NET frameworks, and experience with MongoDB. Responsibilities include designing, implementing, testing, and supporting libraries, collaborating with product and server teams, handling customer support, engaging with the developer community, and mentoring junior engineers. This role offers a significant opportunity to impact MongoDB's strategic growth within the .NET ecosystem.

Our Database Experience (DBX) Team

The Database Experience team builds the libraries and tools that developers use day-to-day working with MongoDB. Our mission is to increase developer adoption, satisfaction and retention by providing a reliable, enjoyable interface for developers and other end-users.

Our senior engineers are typically specialists in a particular programming language, but are capable of contributing to projects in other languages as well.

For this role, we're looking for someone who enjoys designing, writing, and supporting open source libraries for developers using MongoDB and who is passionate about increasing the use of MongoDB within the .NET/C# community. This is an opportunity to make a major strategic impact at MongoDB through the .NET ecosystem which garners almost half a million daily downloads.

You might be right for this role if you…

Advocate for testing and agile development best practices

Can make pragmatic design tradeoffs while balancing features, maintainability, and delivery time

Are fascinated by, and have experience working with concurrency, parallelism and distributed systems

Communicate well, internally and externally, both in writing and face-to-face

Enjoy collaborating with and elevate the skills and expertise of those around you

Are excited about open source software development and communities

Are excited by our mission and values

For this role you must have…

Have 5+ years of experience writing high-quality software

Have substantial, demonstrable experience writing high-quality software in C#

Proficiency in data structures, algorithms, networking, and concurrent programming

Experience with databases, relational or non-relational

Good written and spoken English communication skills

It helps if you have…

Experience contributing to open source projects

Familiarity with the latest .NET frameworks and modern .NET paradigms such as ASP.NET Core, .NET Aspire, Native AOT, source generators, spans/memory

Experience working with MongoDB and the document model

A diversity of experience writing tests for the software you developed (unit, integration, end to end, performance, etc)

You'll be on a team responsible for…

.NET/C# Driver for MongoDB

MongoDB Entity Framework Provider

MongoDB OData integration

MongoDB Analyzer

Contributions to the third-party open source libraries that we depend on

Testing, delivering, and supporting our libraries and tools across multiple operating systems and versions of MongoDB

You'll have responsibilities beyond just code, including…

Working with our Product and Server teams on designs and specifications for new customer-facing MongoDB features

Investigating bugs and support requests from commercial and open source customers for the libraries we maintain

Seeking out speaking or writing opportunities to engage with our developer community

Mentoring junior engineers in both technical and non-technical professional skills

Success in this role means…

Within one month, you will understand the high-level architecture of the driver and how MongoDB works, and will have completed a few small bug fixes and/or feature tickets

Within three months, you will contribute effectively day-to-day, fix bugs, implement planned features, and thoroughly review your colleagues’ pull requests

Within six months, you will contribute to the roadmap for our products and lead the design and specification of new features. You will have the trust of the team and our internal customers

Within a year, you will have significantly improved the quality, performance and maintainability of our codebase, and will be taking the lead in designing and specifying major new features

About MongoDB

MongoDB is built for change, empowering our customers and our people to innovate at the speed of the market. We have redefined the data platform for the AI era, enabling builders to create, transform, and disrupt industries with software. MongoDB’s unified data platform, the most widely available, globally distributed data platform on the market, helps organizations modernize legacy workloads, embrace innovation, and unleash AI. Our cloud-native platform, MongoDB Atlas, is the only globally distributed, multi-cloud data platform and is available across AWS, Google Cloud, and Microsoft Azure.

With offices worldwide and over 67,000 customers, including 75% of the Fortune 100 and AI-native startups, relying on MongoDB for their most important applications, we’re powering the next era of software.

Our compass at MongoDB is our Leadership Commitment, guiding how and why we make decisions, show up for each other, and win. It’s what makes us MongoDB.

To drive the personal growth and business impact of our employees, we’re committed to developing a supportive and enriching culture for everyone. From employee affinity groups, to fertility assistance and a generous parental leave policy, we value our employees’ wellbeing and want to support them along every step of their professional and personal journeys. Learn more about what it’s like to work at MongoDB, and help us make an impact on the world!

MongoDB is committed to providing any necessary accommodations for individuals with disabilities within our application and interview process. To request an accommodation due to a disability, please inform your recruiter.

MongoDB, Inc. provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type and makes all hiring decisions without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state or local laws.

REQ ID: 1273369482

MongoDB’s base salary range for this role is posted below. Compensation at the time of offer is unique to each candidate and based on a variety of factors such as skill set, experience, qualifications, and work location. Salary is one part of MongoDB’s total compensation and benefits package. Other benefits for eligible employees may include: equity, participation in the employee stock purchase program, flexible paid time off, 20 weeks fully-paid gender-neutral parental leave, fertility and adoption assistance, 401(k) plan, mental health counseling, access to transgender-inclusive health insurance coverage, and health benefits offerings. Please note, the base salary range listed below and the benefits in this paragraph are only applicable to U.S.-based candidates.

MongoDB’s base salary range for this role in the U.S. is:

$126,000—$248,000 USD

Sample MongoDB interview questions

1
Design an API Gateway
system designhard
2
Design Multi-player Figma
system designmedium
3
Sort a String by Frequency Sort a string by the frequency of its characters. Input: s = "cccaaa" Output: "cccaaa" or "aaaccc" Explanation: Both 'c' and 'a' appear three times, so sorting them by descending frequency keeps them grouped equally.
codingmedium

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