Application Guide

How to Apply for Senior Firmware Engineer

at Lime

🏢 About Lime

Lime is a leader in shared electric scooters and bikes, focusing on eco-friendly urban transportation solutions that reduce carbon emissions. The company stands out for its global scale, innovative approach to micromobility, and commitment to sustainable urban transit. Working at Lime offers the opportunity to directly impact how millions of people move through cities while contributing to environmental sustainability.

About This Role

As a Senior Firmware Engineer at Lime, you'll design and develop embedded software for Lime's vehicles and upcoming unreleased products, working with embedded Linux or RTOS environments. This role is impactful because you'll own key software functions from design through integration, directly influencing the reliability and performance of Lime's fleet across global markets. You'll collaborate with hardware teams on board design and bring-up, ensuring seamless integration of software and hardware components.

💡 A Day in the Life

A typical day involves designing and implementing embedded software features for Lime vehicles, collaborating with hardware engineers on board-level issues, and debugging system integration challenges. You might spend time reviewing architecture designs with global team members, writing and testing device drivers for new hardware components, and participating in code reviews for critical vehicle software functions.

🎯 Who Lime Is Looking For

  • Has 5+ years of professional embedded C/C++ development experience in consumer electronics, automotive, or similar industries (not just academic or internship experience)
  • Possesses hands-on system experience with Linux, including device drivers and multicore systems, specifically in embedded environments
  • Demonstrates experience owning complete embedded software functions through design, implementation, testing, and integration phases
  • Has experience collaborating with hardware teams on board design, bring-up, and verification during product development cycles

📝 Tips for Applying to Lime

1

Highlight specific embedded Linux experience with device drivers and multicore systems - quantify your contributions to similar projects

2

Showcase experience with the full product development cycle for embedded systems, particularly mentioning collaboration with hardware teams

3

Emphasize any experience with transportation, IoT, or consumer electronics products that involve safety-critical or reliability-focused systems

4

Demonstrate your understanding of Lime's specific challenges by mentioning how you've solved similar problems in vehicle software or embedded systems

5

Include concrete examples of 'owning' embedded software functions from design through integration, not just implementation work

✉️ What to Emphasize in Your Cover Letter

['Your experience with embedded Linux/RTOS in production environments, specifically mentioning device drivers and multicore systems', 'Examples of collaborating with hardware teams during board design and bring-up phases of product development', "How your embedded systems experience aligns with Lime's focus on reliable, safety-conscious transportation products", 'Specific contributions to consumer electronics, automotive, or similar products that demonstrate ownership of complete software functions']

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🔍 Research Before Applying

To stand out, make sure you've researched:

  • Lime's current vehicle lineup and technology stack - understand their existing products and potential areas for improvement
  • The micromobility industry's specific technical challenges (battery management, connectivity, safety systems)
  • Lime's global operations and how firmware needs might differ across regulatory environments
  • Recent Lime product announcements or patents that might indicate upcoming technology directions

💬 Prepare for These Interview Topics

Based on this role, you may be asked about:

1 Deep technical questions about embedded Linux device drivers and multicore system challenges
2 Scenarios about collaborating with hardware teams during board bring-up and integration testing
3 System architecture discussions for complex vehicle software/firmware systems
4 Questions about your experience with the full development lifecycle of embedded products
5 How you approach reliability and safety considerations in transportation-related embedded systems
Practice Interview Questions →

⚠️ Common Mistakes to Avoid

  • Focusing only on desktop or server Linux experience without emphasizing embedded-specific challenges
  • Presenting academic or internship experience as equivalent to the required 5+ years of professional embedded development
  • Failing to demonstrate experience with the complete product development cycle from design through integration

📅 Application Timeline

This position is open until filled. However, we recommend applying as soon as possible as roles at mission-driven organizations tend to fill quickly.

Typical hiring timeline:

1

Application Review

1-2 weeks

2

Initial Screening

Phone call or written assessment

3

Interviews

1-2 rounds, usually virtual

Offer

Congratulations!

Ready to Apply?

Good luck with your application to Lime!