Juul Labs

Juul Labs

Senior Mechatronics Engineer

San Francisco, California, United States · Senior

No sponsorship$165k-$227kDetected 78 days ago
PythonRustFull-Stack DevelopmentLinuxData AnalysisLLMsCustomer SupportSolidWorksFusion 360PCB DesignAltiumEmbedded SystemsSystems EngineeringMechanical DesignElectrical EngineeringLabVIEWTest AutomationResearchCollaboration

About the role

  • This includes test automation frameworks, CI pipelines, aerosol science instruments, electromechanical fixtures, and the software that ties it all together.
  • If you're equally comfortable writing a Python test harness and assembling a precision fixture, you'll fit right in.
  • Team Snapshot - Small team, real ownership.

Responsibilities

  • Work cross-functionally with Firmware, Product Design, Chemistry, and Regulatory teams to translate program needs into reliable, well-documented tooling.
  • Design and develop test systems and automation tooling. This includes software frameworks, electromechanical fixtures, and instrumentation.
  • Contribute to the team's CI/firmware testing infrastructure by developing modular, maintainable test platform components in close collaboration with the firmware engineering team.
  • Consistently produce clear, thorough documentation that enables peers and stakeholders to self-serve and build on your work.
  • Actively leverage AI coding assistants and LLMs as a first-order productivity multiplier for code generation, debugging, documentation, data analysis, and design iteration.
  • The Internal Tools team builds the infrastructure that Juul's hardware and firmware programs run on.
  • We're a small team of generalists who own projects from first principles to final handoff and work directly with the engineers who depend on what we build.
  • Own projects end-to-end. Capture requirements and drive system architecture through fabrication, software integration, validation, and handoff to stakeholders.
  • Within 6 months: Fully own and deliver at least one project from concept through deployment, with stakeholder sign-off.
  • Small team, real ownership. You won't just be assigned a slice of someone else's project; you'll own yours from kickoff to deployment, with the trust and visibility that comes with it.

Requirements

  • 7+ years of hands-on experience in mechatronics, hardware/electrical engineering, or a closely related discipline, with demonstrated ability to work effectively across mechanical, electrical, and software domains.
  • No specific certifications required
  • equivalent work experience demonstrating cross-disciplinary competency will be considered in lieu of degree.
  • All applicants must have authorization to work for Juul Labs in the US.

Nice to have

  • Familiarity with Rust or other systems-level programming languages
  • the team is actively moving toward Rust-based tooling.
  • Proficiency in Python (or equivalent) for test automation, data acquisition, and analysis scripting.
  • Clear, concise communicator with strong documentation discipline
  • comfortable working directly with non-engineering stakeholders.
  • Experience in consumer electronics, vapor/aerosol science instrumentation, or factory test environments.
  • Proficiency in CAD (SolidWorks preferred, Fusion 360, Onshape, or equivalent) for fixture and enclosure design.
  • Familiarity with LabVIEW, NI DAQ, or similar instrumentation frameworks.

Compensation

  • $165,000 - $227,000 USD

Benefits

  • Equity and performance bonuses.
  • Cell phone subsidy, commuter benefits and discounts on JUUL products
  • Excellent medical, dental and vision, disability, and life insurance, plus family support, wellness, legal, and employee assistance program benefits

Company info

  • Juul Labs's mission is to transition the world's billion adult smokers away from combustible cigarettes, eliminate their use, and combat underage usage of our products.
  • We have the opportunity to address one of the world's most intractable challenges through a commitment to exceptional quality, research, design, and innovation.
  • Backed by leading technology investors, we are committed to the same excellence when it comes to hiring great talent.
  • We are a diverse team that is united by this common purpose and we are hiring the world's best engineers, scientists, designers, product managers, operations experts, and customer service and business professionals.
  • If the opportunity to build your career is compelling, read on for more details.
  • 401(k) plan with company matching
  • Currently and actively using AI tools (coding assistants, LLMs) as a core part of your daily engineering workflow.
  • How to Stand Out
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This listing is sourced directly from Juul Labs's careers page and normalized into a canonical job model.