Mojo Tooling Engineer

About the role:

Mojo is a new systems programming language, designed from scratch for the AI era. Mojo language, compiler and SDK are being rapidly built by a team of talented engineers here at Modular.
The Mojo development team is looking to expand and hire a Debugging and Tooling Engineer.
LOCATION: Candidates based in the US, Canada, and UK are welcome to apply. To support growth and collaboration, those in earlier career stages work in a hybrid capacity at our Los Altos, CA or Edinburgh office, with a minimum of 3 days per week on-site and relocation assistance available for eligible candidates. Senior engineers have both remote and in-office flexibility. All new hires complete onboarding in person.

What will you do:

- Drive the development of the Mojo LLDB-based debugger, taking it from a current experimental project to a fully mature debugger to delight Mojo developers
- You will be working on interactive debugging, IDE integration, debug info formats, expression evaluator and other parts of the debugging experience.
- As the product evolves, you will have the opportunity to work on other projects, like GPU debugging, agentic debugging and debugger MCP, profiling support, and many other exciting novel features
- Your input will be critical to define the roadmap of the Mojo debugger and overall tooling
- In collaboration with the developer relations and the rest of the Mojo compiler team, you will be involved with the Mojo developer community, discussing features, capturing use cases, and directing open-source contributors.

What you bring to the table:

- Required: Contributions to SDK and dev tools for a major programming language
- Required: Track record of improving developers productivity with tools.
- Strong plus: Experience working with community or developer relation teams.
- Strong plus: Past experience working on LLDB
- Strong plus: Exposure to the LLVM ecosystem

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Helpful but not required:

- You understand developer experience, can listen and be pragmatic about what is important vs what is nice to have
- You are prepared to dive deep into systems programming
- You are knowledgeable with debuggers, linkers, compilers and other development tools

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What Modular brings to the table:

- Amazing Team. We are a progressive and agile team with some of the industry’s best engineering and product leaders.
- World-class Benefits. In order to attract the best, we need to offer the best. Your benefits package may include comprehensive healthcare coverage, retirement and savings programs, employee stock purchase opportunities, paid time off, wellbeing resources, family support programs, and learning and development opportunities. Please note that specific benefit packages may vary based on your location, you can read more about benefits offered by Qualcomm here (https://www.qualcomm.com/company/careers/benefits) .
- Competitive Compensation. We offer very strong compensation packages, including RSU grants. We want people to be focused on their best work and believe in tailoring compensation plans to meet the needs of our workforce.
- Team Building Events. We organize regular team onsites and local meetups in Los Altos, CA as well as different cities. Traveling 2-4 times a year is expected for all roles.

Working at Modular will enable you to grow quickly as you work alongside incredibly motivated and talented people who have high standards, possess a growth mindset, and a purpose to truly change the world.
Working at Modular will enable you to grow quickly as you work alongside incredibly motivated and talented people who have high standards, possess a growth mindset, and share a purpose to fundamentally change how developers build software for AI and accelerated computing.
The estimated base salary range for this role to be performed in the US, regardless of the state, is $148,000.00–$270,000.00 USD .
The estimated base salary range for this role to be performed in Canada, regardless of the province, is $172,400.00–$258,600.00 CAD .
The estimated base salary range for this role to be performed in the United Kingdom is £ 82,800.00– £ 123,600.00 GBP .
The salary for the successful applicant will depend on a variety of permissible, non-discriminatory job-related factors, which include but are not limited to education, training, work experience, business needs, or market demands. This range may be modified in the future. The total compensation for a candidate will also include annual target bonus, equity, and benefits, with equity making up a significant portion of total compensation.
For candidates who fall outside of the listed requirements, we nevertheless encourage you to apply, as we may have upcoming openings at lower or higher levels than the one advertised.