WHAT YOU'LL DO
We are looking for smart, fast-learning engineers who care as much about proving that navigation works as about making it work. As an SDE(T), you will:
Build and maintain the unit, integration, and functional test architecture for a C++17 library, and the CMake and CI pipelines that run it.
Turn real-world location recordings into regression tests, and define the quality metrics for map-matching, routing, and route-following.
Keep the quality signal fast and trustworthy: eliminate flaky tests, run sanitizer and performance builds, and track coverage.
Build AI-driven test tooling: agent-based test generation, automated dogfooding and triage, and AI-assisted PR review.
Partner with feature engineers on testability and review designs for how they will be verified.
Thoughtfully leverage AI tools in your workflow and set the standard for how the team uses them.
WHAT WE BELIEVE ARE IMPORTANT TRAITS FOR THIS ROLE
Solid C++17 proficiency: comfortable writing test code and tooling, reading production code, and debugging with sanitizers and profilers. Python or similar for harnesses and analysis.
Proven experience building test infrastructure for a large native codebase: test frameworks, CMake, and CI systems.
A data-driven mindset: you define metrics, build the tooling to measure them, and use them to argue for or against a change.
Experience diagnosing hard-to-reproduce failures: flakiness, platform-specific behavior, memory and threading bugs.
Strong English skills, with the ability to explain test results, risk, and trade-offs to peers and stakeholders.
Would be a Plus
Familiarity with navigation concepts (map matching, dead reckoning, route progress, or Electronic Horizon).
Experience with replay- or simulation-based testing using real sensor and GPS data.
Hands-on experience building AI- or agent-based developer tooling for testing, code review, or triage.
Experience with coverage tooling, performance benchmarking, or testing SDKs through generated bindings.
WHAT WE VALUE
In addition to our core values https://www.mapbox.com/about/values/, which are not unique to this position and are necessary for Mapbox leaders:
We value high-performing creative individuals who dig into problems and opportunities.
We believe in individuals being their whole selves at work. We commit to this through supportive health care, parental leave, flexibility for the things that come up in life, and innovating on how we think about supporting our people.
We emphasize an environment of teaching and learning to equip employees with the tools needed to be successful in their function and the company.
We strongly believe in the value of growing a diverse team and encourage people of all backgrounds, genders, ethnicities, abilities, and sexual orientations to apply.
HOW WE SUPPORT YOU
Hybrid/Remote Options: Enjoy flexibility to work comfortably from home or periodically from an office where applicable.
Country-Specific Care & Coverage: Private health, dental, and income protection plans tailored to elevate your regional statutory benefits.
Family-First Support: Family care, maternity and paternity leave policies to support your growing family.
Lifestyle Spending Account: Contributions to support your health, wellness, and personal growth.
Balance & Brainpower: Mental health support for you and your dependents.
Rest & Recharge: Paid time away, company holidays, and generous absence policies.
Time Off to Give Back: Dedicated paid volunteering time in addition to your standard PTO.
By applying for this position, you acknowledge that you have received the Mapbox Non-US Privacy Notice https://www.mapbox.com/legal/applicant-privacy-notice/ for applicants, which is linked here. Completing this application requires you to provide personal data, such as your name and contact information, which is mandatory for Mapbox to process your application.
We are committed to a fair and equitable hiring process. We do not discriminate against any protected class.
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