Join the Vector Search team and help build a cutting-edge vector database on top of MongoDB. Our team is responsible for the syntax and implementation of MongoDB's $vectorSearch aggregation, which enables approximate nearest neighbor queries over high-dimensional vectors.
We are a small team with a large and rapidly growing customer base, providing engineers an opportunity to make a highly-visible, broad impact. When scaling search to billions of vectors, performance is paramount. We're looking for engineers who enjoy solving complex and open-ended problems that directly impact users' performance.
This role is based in San Francisco, CA with a hybrid work model.
You would get to:- Implement new features within MongoDB's $search and $vectorSearch aggregation operators
- Work cross-functionally with Product teams to define new query and index syntax
- Identify and address performance bottlenecks in filter queries and nearest neighbor search
- Have the opportunity to lead projects and own subsystems
- Perform code reviews with peers, review technical designs, and mentor junior developers
- 3+ years of experience working on large-scale backend systems
- Experience writing high-performance applications in Java or another JVM language
- A growth mindset and the desire to learn quickly through taking on challenges, reflecting on outcomes, and incorporating feedback
- Passionate about optimization, code quality, and problem solving
- Bonus: experienced with Apache Lucene, vector databases, or high-throughput web services
- In 3 months you'll have a solid high-level understanding of what our team does and how we operate
- You'll have contributed to the development of an existing project and completed several small improvements or bug fixes
- In 6 months you'll be reviewing code and project designs, and be an active participant in team meetings
- In 12 months you'll have a thorough understanding of the systems our team owns and have led a small project. You'll have proposed small improvements to our code, product, or team processes
MongoDB is built for change, empowering our customers and our people to innovate at the speed of the market. We have redefined the database for the AI era, enabling innovators to create, transform, and disrupt industries with software. MongoDB’s unified database platform—the most widely available, globally distributed database 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 database and is available across AWS, Google Cloud, and Microsoft Azure.
With offices worldwide and nearly 60,000 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: 4263333188
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.
Skills Required
- 2+ years of experience building backend or infrastructure systems at scale
- Strong software engineering skills in languages such as Go, Rust, Python, or C++
- Experience in cloud-native architectures, distributed systems, and multi-tenant service design
What the Team is Saying
MongoDB Compensation & Benefits Highlights
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Parental & Family Support — Paid parental leave up to 20 weeks, backup childcare days, and global fertility/adoption support are emphasized as generous and inclusive. Family-forming programs through dedicated partners and structured return-to-work flexibility further strengthen this pillar.
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Healthcare Strength — Comprehensive medical, dental, and vision coverage is paired with extras like free primary-care memberships, mental-health resources, and care navigation. Added coverage for gender affirmation and menopause/low-testosterone needs underscores depth in clinical and holistic support.
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Wellbeing & Lifestyle Benefits — Wellbeing programs, meditation and mindfulness tools, and fitness partnerships are highlighted alongside in-office lunches on hub days. These everyday perks complement core coverage and support sustained work-life balance.
MongoDB Insights
What We Do
The database market is big. How big? Well, according to IDC, it’ll reach $153 billion by 2027. And MongoDB is at the forefront of that innovation with thousands of customers across the globe. We empower developers and businesses to build and deploy the applications they want, wherever they want.
Why Work With Us
We are ambitious. We are passionate about creativity. And we believe the best paths are the ones we have yet to forge.
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Employees engage in a combination of remote and on-site work.
MongoDB provides multiple working model options for our employees, including the flexibility to work from home to opportunities for collaboration and social interaction in a MongoDB office.
