[23/9/2025] Senior Software Engineer, Storage Engines Sydney

Overview

MongoDB’s mission is to empower innovators to create, transform, and disrupt industries by unleashing the power of software and data. We enable organizations of all sizes to easily build, scale, and run modern applications by helping them modernize legacy workloads, embrace innovation, and unleash AI. Our industry-leading developer data platform, MongoDB Atlas, is the only globally distributed, multi-cloud database and is available in more than 115 regions across AWS, Google Cloud, and Microsoft Azure. Atlas allows customers to build and run applications anywhere—on premises, or across cloud providers. With offices worldwide and over 175,000 new developers signing up to use MongoDB every month, it’s no wonder that leading organizations trust MongoDB to build next-generation, AI-powered applications.

The database market is massive (IDC estimates it to be $121B+ by 2025) and MongoDB is at the head of its disruption. We are transforming industries and empowering developers to build amazing apps that people use every day. We are the leading modern 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 Storage Engines team is building WiredTiger, a cutting-edge open-source storage engine. WiredTiger employs modern hardware architectures and software algorithms to achieve extraordinary performance for the most intricate applications. This team includes database engineering pioneers with decades of experience who are considered deep domain specialists.

We are a diverse collection of people and globally distributed—having different backgrounds, levels of domain knowledge, viewpoints, and experiences. We are all working together to tackle the obstacles of a fast-growing and ever-demanding data storage technology to keep MongoDB ahead of customers’ expectations.

Are you an experienced software engineer seeking a new opportunity to make a high-impact contribution to the database industry? Do you thrive when debugging high-concurrency systems with peers? Then look no further The storage backend is the lowest layer in the MongoDB stack, each contribution has a high impact on the product. We are currently working on a major re-architecture for Atlas (our database-as-a-service offering), improving performance for our largest customers and enabling additional workloads.

We are looking to speak to candidates who are based in Sydney for our hybrid working model.

Technical Qualifications

- 7+ years of software development experience with 3+ years of C or C++
- 3+ years of experience in spearheading projects, writing technical designs and documentation, refining work for other engineers, and planning milestones
- Experience with and desire to mentor engineers
- Professional/advanced academic expertise in the domains of systems, distributed systems, or databases is preferred, but not required

Candidate Profile

- You have excellent communication skills, which you use to collaborate with colleagues. You use your time effectively, make considered assessments of project complexity, and respect others who do the same
- You love designing, writing, testing, and debugging maintainable software. You endeavour for well-thought-out solutions
- You believe there is more value in working as a team than in the sum of singular contributions, and that everyone is accountable for a quality product
- You are willing, able, and inspired to learn new things. You are not afraid to admit you don’t know something

Position Expectations

- Understand and improve the current functionality of WiredTiger
- Make design and coding contributions to the team's projects covering new features and architecture improvements
- Work with other engineers to coordinate seamless changes in a feature-rich, large codebase
- Estimate task complexity and report progress and risks to peers and managers
- Drive team projects
- Fix code defects and work with support to diagnose and remediate customer issues
- Adapt and adhere to the team norms and the company's core values

Success Measures

- In the first month, you will understand the high-level architecture of WiredTiger
- In three months, you will actively participate in reviewing code changes from your peers and will diagnose and fix a few customer or testing-reported issues
- In six months, you will contribute to the development of a project slated for the next release of MongoDB and participate in the design review for new features
- In twelve months, you are influencing the development of a new feature and are helping to mentor new engineers on the team

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.

Embrace the Power of Differences.

MongoDB is an equal opportunities employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or protected veteran status.

All personal information, including gender, will be collected, stored and processed in accordance with MongoDB’s Privacy Notice. Please see our Privacy Notice for details.

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