Senior Mechanical Engineer

Lime

Senior Mechanical Engineer at Lime designing and optimizing components for shared micromobility solutions. Focusing on advanced simulation and mechanical design collaboration.

Posted 5/27/2026full-timeSan Francisco • California • 🇺🇸 United StatesSenior💰 $128,000 - $176,000 per yearWebsite

About the role

Key responsibilities & impact

Mechanical Design: Design, iterate, and structurally optimize vehicle frames, chassis, enclosures, and other safety-critical sub-systems.
Conduct Advanced Simulation: Perform CAE to evaluate and optimize vehicle assemblies and sub-systems to provide engineering confidence before releasing parts for tooling.
Test Correlation: Actively correlate analytical simulation results with physical testing data from the lab to continuously improve model accuracy and predictive insights.
Cross-Functional Engineering: Partner closely with multi-disciplinary engineering units and external global suppliers to translate concepts into manufacturable, high-reliability components.
Serve as Team CAE Expert: Act as the primary technical mentor and go-to resource for the engineering team; guide colleagues in establishing proper simulation setups, troubleshooting complex models, and validating boundary conditions.
Manufacturing & Builds: Support vehicle builds at our Asian Contract Manufacturers (CMs), which includes international travel approximately 2–3 times per year.

Requirements

What you’ll need

Education: MSc in Mechanical Engineering (or a related engineering discipline), or equivalent practical experience.
Experience: 6+ years of mechanical design and simulation experience, with a proven portfolio that shows design iteration driven by a practical blend of CAD (Solidworks preferred) and CAE (Abaqus preferred).
FEA Expertise: Capable of executing complex static, dynamic, vibration, fatigue, non-linear and fracture analyses for large assemblies and vehicles.
Analytical & Mechanical Skills: First-principles hand calculations, structural mechanics, classical beam theory, bolted joint and weldment analysis, free-body diagram development, and FEA model boundary condition validation.
Material Expertise: Aluminum metallurgy (6000 series), advanced manufacturing (HPDC casting, forging, extrusion), heat treatment (T4/T6), fatigue & fracture mechanics (S-N Curves, crack propagation), and weldment analysis.
Preferred Experience: Prior engineering experience within the automotive, bicycle, or micromobility-adjacent industries.

Benefits

Comp & perks

Comprehensive Health & Wellness: A choice of medical, dental, and vision plans. We also provide company-paid life and disability insurance and company-funded mental health benefits.
Financial & Retirement Planning: 401(k) plan with both pre-tax and Roth options, and access to a Health Savings Account (HSA) with a monthly company contribution.
Family & Fertility Support: Paid parental leave for birthing and non-birthing parents, plus fertility and family-forming benefits.
Paid Time Off: Unlimited vacation, paid leaves, and 10 company holidays.
Unique Lime Perks: Complimentary use of Lime vehicles in participating cities, a monthly phone allowance, dedicated learning and development days, and access to perks including One Medical, Wellhub, and Headspace.

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

mechanical designCAEFEAstatic analysisdynamic analysisvibration analysisfatigue analysisnon-linear analysisfracture analysisCAD

Soft Skills

cross-functional collaborationmentorshiptroubleshootinganalytical skillscommunication

Certifications

MSc in Mechanical Engineering