Mapbox

Software Development Engineer in Test II, NavNative

Mapbox
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3 days ago
Helsinki, FinlandSenior

Responsibilities

  • Build and maintain unit, integration, and functional test architecture for a C++17 library.
  • Develop CMake and CI pipelines for the test infrastructure.
  • Convert real-world location recordings into regression tests and define quality metrics for map matching, routing, and route following.
  • Improve test-signal speed and reliability by eliminating flaky tests, running sanitizer and performance builds, and tracking coverage.
  • Build AI-driven tooling for test generation, dogfooding, triage, and pull-request review.
  • Partner with feature engineers on testability and review designs for verification.

Requirements

  • Demonstrate solid C++17 proficiency, including writing test code and tooling, reading production code, and debugging with sanitizers and profilers.
  • Use Python or a similar language for test harnesses and analysis.
  • Have proven experience building test infrastructure for a large native codebase, including test frameworks, CMake, and CI systems.
  • Define metrics and build measurement tooling to support data-driven quality decisions.
  • Diagnose hard-to-reproduce failures such as flaky tests, platform-specific behavior, and memory or threading bugs.
  • Communicate test results, risks, and trade-offs effectively in English.
  • Familiarity with navigation concepts, replay or simulation testing using sensor and GPS data, AI- or agent-based developer tooling, coverage or benchmarking tools, or SDK testing through generated bindings is preferred.

Benefits

  • Hybrid or remote work options, with the ability to work from home or periodically from an applicable office.
  • Private health, dental, and income protection plans tailored to regional statutory benefits.
  • Family care, maternity, and paternity leave policies.
  • Lifestyle spending account contributions for health, wellness, and personal growth.
  • Mental health support for employees and dependents.
  • Paid time away, company holidays, and generous absence policies.
  • Dedicated paid volunteering time in addition to standard paid time off.

Tech Stack

Categories

Mapbox

About Mapbox

501-1,000 employees

Mapbox builds a real-time location platform with APIs, SDKs, and data for maps, navigation, search, and traffic used by developers and enterprises across mobile, web, and automotive. It sells usage-based SaaS for custom maps, routing, and telemetry that support logistics, e-commerce, and fleet operations. Founded in 2011 and headquartered in Washington, DC, the privately held company serves millions of developers and powers navigation for people, packages, and vehicles.

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