The worldwide data management software market is massive (According to IDC, the worldwide database software market, which it refers to as the database management systems software market, was forecasted to be approximately $82 billion in 2023 growing to approximately $137 billion in 2027. This represents a 14% compound annual growth rate). At MongoDB we are transforming industries and empowering developers to build amazing apps that people use every day. We are the leading developer data platform and the first database provider to IPO in over 20 years. Join our team and be at the forefront of innovation and creativity.

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. 

This role can be based out of our US or Canadian offices or remotely in the North America region.

Candidate Profile

• 5+ years of experience in computer programming 
• Experience in databases and/or data management systems is a huge plus, but not a requirement
• 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

Position Expectations

• 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

Success Measures

• 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

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 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 over 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 is an equal opportunities employer.

Req. ID: 1273417264

About The Role  

Join our applications engineering team as an Additive Applications Engineer and become the go-to technical resource for our customers. In this customer-facing role, you'll be the first line of support, helping businesses successfully integrate our 3D printing solutions into their workflows through hands-on troubleshooting, on-site training, and proactive guidance. You'll work closely with both customers and internal teams to solve real problems and drive meaningful outcomes. 

What You Will Do  

• Serve as the primary technical point of contact for customers, diagnosing and resolving printing and process challenges with a solutions-first mindset 
• Conduct structured root-cause analyses and failure investigations to resolve recurring or complex issues 
• Deliver on-site customer training, installations, and advanced troubleshooting visits across North America 
• Develop material profiles and optimize 3D printing process parameters across a range of applications and materials 
• Create high-quality training materials, printing guides, and technical documentation that empower customers to self-serve 
• Apply Design for Additive Manufacturing (DfAM) principles to support customers with complex geometry and process challenges 
• Conduct material testing and characterization studies to improve print quality and reliability 
• Log customer interactions, cases, and follow-ups accurately in the CRM (HubSpot) 
• Provide pre-sales technical support and design consultation 
• Represent AON3D at trade shows, conferences, and customer meetings 
• Contribute to application notes and case studies that support the broader customer base 

What We Are Looking For  

• Post-secondary degree in engineering, science, additive manufacturing, or a related technical field 
• 3+ years of experience in an applications engineering or technical support role within the 3D printing or advanced manufacturing industry 
• Strong troubleshooting instincts and comfort with structured root-cause analysis 
• Genuine interest in working directly with customers and solving their technical challenges 
• Proficiency with CAD software and DfAM principles 
• Experience with FFF/FDM 3D printing processes and slicing software (PrusaSlicer or similar) 
• Excellent written and verbal communication skills in English 
• Ability to travel visa-free within Canada and the United States (up to 25% of the time) 
• Preferred: 
  • Experience with HubSpot or similar CRM platforms for managing customer cases and communications 
  • Hands-on experience with high-performance engineering materials (PEEK, PEKK, PEI, PI) 
  • Knowledge of thermoplastic material science and industrial applications 
  • Familiarity with quality management systems (ISO 9001, AS9100) 
  • Experience with design of experiments (DOE) or statistical analysis 
  • Background in manufacturing processes beyond additive manufacturing 
  • Project management experience 

Location and Work Model  

• Location: Montreal 
• Work model: Hybrid 
• Employment type: Full-time, Permanent 
• Travel: Willingness and ability to travel within Canada and the United States, up to 25% for customer visits and industry events