Site Reliability Engineer II

Calendly (View all Jobs)


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Interview Process

1. 45 min chat with engineering director 2. Take-home assignment 3. All day technical & cultural fit interview. Tech assessments include system design, extension of the takehome assignment, and bug fix pairing.

Programming Languages Mentioned


What is Calendly?

Calendly takes the work out of scheduling so our customers have more time to work on what’s really important. Our software is used by millions of people worldwide—with thousands more signing up every day. To maintain this exciting growth, we’re looking for top talent to join our team and help shape the future of our product. 

Why join Calendly’s Engineering team? 

At Calendly, the Site Reliability Engineer is tasked with designing, building, maintaining, and operating our next-generation infrastructure platform. With a growing team and a mindset for scalability, SREs build their own tools, deploy open-source solutions, and consume cloud services as needed to extend the platform. 

The SRE also uses their expertise of the infrastructure to empower application engineering teams. This includes enabling and evangelizing monitoring best practices, and advising on optimal infrastructure use. An ideal candidate demonstrates exceptional skills in communicating patterns and improvements that automate tasks, support stability, and improve performance.

What are some of the high impact opportunities you’ll tackle? 

  • Build tools and applications to extend Calendly’s infrastructure platform
  • Evaluate and deploy cloud native open source tools
  • Exercise expertise in cloud infrastructure concepts and patterns
  • Institute resilient infrastructure through source code based configuration (Infrastructure as code)
  • Maintain and improve observability of our infrastructure platform, and offers patterns for application teams to consume for application observability
  • Participate in an on-call rotation to support the infrastructure platform
  • Foster a collaborative environment of learning and knowledge dissemination
  • Aptitude, and desire, to grow core-skills through pairing, self-learning, and incorporating feedback from peers 
  • Define standard practices and tooling around new services, changes, incidents, postmortems, and capacity management, and work with application engineering teams to adopt those practices

This opportunity is for you if you have/are:

  • Experience running highly-available production infrastructure 
  • Software development experience (particularly Go or Python), especially writing software to manage infrastructure
  • Familiarity with Kubernetes and cloud native technologies 
  • Knowledge of cloud infrastructure (especially GCP or AWS), distributed systems, and reliability practices 
  • A basic understand of the Linux operating system 
  • Understanding of software-development lifecycle, CI/CD pipelines, and application delivery
  • Familiarity with software and infrastructure monitoring tools (especially Datadog)
  • A proven aptitude to learn and acquire new technical skills 
  • Understanding of security and the shared responsibility model
  • Authorized to work lawfully in the United States of America as Calendly does not engage in immigration sponsorship at this time 

If you are an individual with a disability and would like to request a reasonable accommodation as part of the application or recruiting process, please contact us at

Calendly is registered as an employer in many, but not all, states. If you are not located in or able to work from a state where Calendly is registered, you will not be eligible for employment.

Please mention No Whiteboard if you apply!
I'm a one-man team looking to improve tech interviews, and could use any support! 😄

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