Senior Platform Engineer (Infrastructure)

We're looking for a Senior Platform Engineer to join our growing Platform Engineering team. This role will have a direct impact on our customers, our engineers, and our business by ensuring our applications are highly available, scalable, and performant.

At Fleetio, we foster a culture of 'Product Engineers', where we value and prioritize engineers who enjoy being part of the product discovery process. Our Engineering and Product teams are structured as autonomous PODs that execute within one focal area toward a defined product vision. We strive to deliver easy-to-use software, and our goal as engineers is to quickly and continuously deliver meaningful value to our customers. We've optimized our CI/CD tools and processes to easily get code into our production environments, resulting in an average of 40 deploys per week.

Fleetio is a modern software platform that helps thousands of organizations around the world manage their fleet operations. Transportation technology is a hot market and we’re leading the charge, with raving fans and new customers signing up every day. We raised $450M in Series D in March of 2025 and are on an exciting trajectory as a company. Fleetio is also a proud founding member of the Rails Foundation!

• Watch our culture videos: https://fleet.io/culture
• Engineering culture, interview process and videos: https://www.fleetio.com/careers/engineering
• Fleetio overview video: https://www.youtube.com/watch?v=IlvIbwZT3oU
• Fleetio Go overview video: https://www.fleetio.com/go
• More about the Fleetio platform: https://www.fleetio.com/features
• API docs: developer.fleetio.com
• Test drive Fleetio to get an even better feel for what we're building: https://www.fleetio.com/register

This is a remote opportunity and is open to candidates in the United States, Canada, or Mexico.

Our ideal candidate is an Infrastructure Engineer experienced in scaling Ruby on Rails applications, with a passion for optimization and performance improvements. You bring a strong background in Site Reliability and Infrastructure Engineering for Rails applications. You follow Agile and DevOps principles, can effectively influence teams to achieve goals, and demonstrate excellent problem-solving skills in our fast-paced environment.

As a Senior Platform Engineer on Fleetio’s Platform Engineering team, you will:

• Manage cloud infrastructure using Infrastructure as Code
• Manage and scale a Ruby on Rails stack
• Implement monitoring tools to improve observability
• Perform code review of new features to ensure they meet performance requirements
• Debug production issues across all levels of the stack
• Plan for the growth of, optimize, and automate Fleetio’s Infrastructure
• Partner with feature engineering teams to help them build, deploy, and operate their features safely and efficiently
• Respond to reliability and security incidents, from triage and mitigation through post-incident follow-up

• 5+ years of AWS Experience
• 3+ years Kubernetes Experience
• Infrastructure as Code tools (Terraform)
• Deep understanding of cloud network fundamentals (routing, firewalls, load balancers, CDNs, VPCs, etc.)
• Experience with Ruby on Rails or an equivalent web application framework 
• Expert at profiling and benchmarking source code
• Effective at code review, and identifying potential performance problems before they reach production
• Experience with Datadog or other APM tools
• Excellent written and verbal communication skills

• Experience with distributed event and data stores, such as Kafka, Redis, Elasticsearch, Memcached, and TimescaleDB
• You know a thing or two about the fleet management industry
• Experience using AI tools to automate repetitive work and accelerate infrastructure projects