About the role

Role Overview

Calendly is hiring a Senior Site Reliability Engineer (SRE) to design, build, maintain, and operate a next-generation infrastructure platform. You’ll partner closely with application engineering teams to improve stability, performance, and observability, while building internal tools and deploying cloud-native solutions.

Responsibilities

Build tools and applications that extend Calendly’s infrastructure platform
Evaluate, deploy, and maintain cloud-native open source tooling
Apply cloud infrastructure concepts and scalable reliability patterns
Improve resilience using Infrastructure as Code (IaC)
Maintain and improve observability; provide patterns for application teams to adopt
Participate in an on-call rotation to support the infrastructure platform
Define standards and tooling for:
- new services and changes
- incidents and postmortems
- capacity management
Collaborate with application teams to adopt best practices
Foster a learning-focused environment by sharing knowledge and mentoring others

Requirements

Strong communication skills; able to explain patterns and improvements that automate work and enhance reliability/performance
Strong ability to solve complex problems with attention to detail
Comfortable working with internal stakeholders to understand needs and collaborate on solutions
Deep expertise with Linux
Strong knowledge of cloud infrastructure (especially GCP), distributed systems, and reliability practices
Deep experience designing/building/running highly available production infrastructure
Golang or Python experience, especially building/authoring APIs to orchestrate and manage infrastructure
Solid knowledge of cloud-native application patterns on Kubernetes (e.g., Controllers and Operators)
Strong networking principles and extensive experience with cloud networking technologies for scalable, secure environments
Extensive monitoring experience (especially Datadog)
Authorized to work lawfully in the United States (no immigration sponsorship)

Nice-to-Haves

Not explicitly stated, but strong mentorship and evangelizing monitoring/observability best practices are emphasized.

About Calendly

Calendly is a software company focused on scheduling and productivity, helping millions of people coordinate meetings efficiently. The role is within Calendly’s Engineering team, responsible for building and operating infrastructure that powers scalable product growth.