Application Guide

How to Apply for Senior Software Engineer (IoT)

at Swiftly, Inc

🏢 About Swiftly, Inc

Swiftly is uniquely positioned at the intersection of public transit and IoT, leveraging real-time data to make urban transportation more efficient and sustainable. Working here means directly impacting millions of daily commuters by reducing emissions and improving transit reliability, all while solving complex technical challenges in embedded systems and cloud-native architectures.

About This Role

As a Senior Software Engineer (IoT), you will design and maintain the software that connects onboard transit hardware (headsigns, passenger counters, fareboxes) to Swiftly's cloud platform. Your work enables over-the-air updates, remote device management, and real-time fleet health monitoring, directly improving transit agency operations and passenger experience.

💡 A Day in the Life

A typical day might start with reviewing fleet health dashboards and addressing any device connectivity issues, then diving into code to implement a new OTA update mechanism for fareboxes. After a standup with the team, you might pair with a hardware engineer to debug a serial communication issue, then spend the afternoon refining a cloud service for real-time telemetry ingestion. Your day ends with documenting the new device management API and reviewing a colleague's PR on containerized Linux images for edge devices.

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Interview Prep

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🎯 Who Swiftly, Inc Is Looking For

  • Has 5+ years of experience with embedded systems or IoT platforms, specifically integrating with hardware like fareboxes or passenger counters via serial interfaces (RS-232, CAN) and messaging protocols (MQTT).
  • Deeply proficient with Linux (imaging, containerization, networking) and can build robust cloud-native backends for telemetry processing and device health observability.
  • Strong in Python, Java, or TypeScript, with hands-on experience in AWS services (IoT Core, Lambda, DynamoDB) and SQL databases.
  • Passionate about public transit and sustainability, with a track record of solving real-world problems in edge computing or fleet management.

📝 Tips for Applying to Swiftly, Inc

1

Highlight specific projects where you integrated onboard hardware (e.g., headsign controllers) with cloud services using MQTT or similar protocols.

2

Emphasize your experience with over-the-air (OTA) update mechanisms and remote device management, as this is central to the role.

3

Tailor your resume to show proficiency with Linux system administration, containerization (Docker), and AWS IoT services.

4

Mention any work with transit industry standards (e.g., J1708, CAN bus) or similar edge computing environments.

5

Include a brief note on how your work has improved system reliability or reduced downtime, as Swiftly values fleet health observability.

✉️ What to Emphasize in Your Cover Letter

['Your passion for using IoT to solve urban mobility challenges and reduce emissions.', 'Concrete examples of building scalable, cloud-native IoT backends with real-time telemetry processing.', 'Experience with remote device management and OTA updates, especially in a fleet context.', "How your technical skills (Linux, MQTT, AWS) align with Swiftly's mission to enhance transit efficiency."]

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🔍 Research Before Applying

To stand out, make sure you've researched:

  • → Explore Swiftly's public case studies or blog posts about their transit analytics platform and IoT integrations.
  • → Understand the challenges transit agencies face with legacy hardware and how Swiftly's solutions address them.
  • → Review AWS IoT Core documentation and best practices for device management at scale.
  • → Look into industry standards like GTFS (General Transit Feed Specification) and how Swiftly uses them.

💬 Prepare for These Interview Topics

Based on this role, you may be asked about:

1 Describe a time you designed an OTA update mechanism for embedded devices. How did you ensure reliability and rollback safety?
2 How would you architect a cloud service to process telemetry data from thousands of transit vehicles in real time?
3 Explain your experience with CAN bus or J1708 protocols. How do you handle data parsing and error handling?
4 How do you approach monitoring device health across a distributed fleet? What metrics matter most?
5 Given Swiftly's focus on transit, how would you prioritize features that improve passenger experience vs. agency operations?
Practice Interview Questions →

⚠️ Common Mistakes to Avoid

  • Ignoring the specific hardware protocols mentioned (RS-232, CAN, J1708) – generic IoT experience isn't enough; be explicit about your hands-on work with these.
  • Overlooking the remote device management aspect – many candidates focus on data processing but fail to address OTA updates and fleet health.
  • Not demonstrating a genuine interest in public transit or sustainability – Swiftly's mission is core to their culture.

📅 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 Swiftly, Inc!

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