Alex Barnes
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Vice President of Engineering
Georgia, United States
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Vice President of EngineeringCriblJul 2026 - Current (3 months)- VP of Engineering, Platform Services, Data, and InfrastructureCalendlyAug 2022 - Jul 2025 (3 years)Led the establishment and growth of the Data, Infrastructure, and Platform Services departments, supporting Calendly’s rapid expansion and scaling mission-critical services.
Built and scaled infrastructure to support over a million meetings daily, 4Xing requests over my tenure.
Established engineering teams across Compute Platform, Site Reliability Engineering (SRE), Data Engineering, Machine Learning Ops (MLOps), Data Science, Data Reliability Engineering, and Developer Tooling.
Executive leader for Platform Services, overseeing Identity and Access Management, Trust & Safety, Front-end Platform, and Calendar Services.
Championed the adoption of Kubernetes, advanced automation, and self-service de - Compute Team LeadDatadogOct 2020 - Aug 2022 (1 year 11 months)Founded and led the Compute Lifecycle Automation team, driving large-scale cloud and Kubernetes automation initiatives.
Designed and deployed automation to manage the lifecycle of hundreds of Kubernetes clusters across major cloud providers.
Architected a next-generation deployment tool using Temporal, ensuring safe and reliable code releases across Datadog’s extensive infrastructure.
Spearheaded key infrastructure projects that improved scalability, availability, and operational efficiency for Datadog’s compute platform.
Collaborated closely with engineering leadership to refine platform reliability and developer experience. - KOrganizerKubernetes Atlanta MeetupJan 2019 - Apr 2025 (6 years 4 months)https://www.meetup.com/Kubernetes-Atlanta-Meetup/
Led Atlanta’s premier Kubernetes and cloud-native technology meetup, fostering collaboration and knowledge sharing in the cloud engineering community.
Organized industry talks, panel discussions, and technical workshops to help professionals navigate cloud-native infrastructure challenges. - Director of Site Reliability EngineeringSalesloftMay 2017 - Oct 2020 (3 years 6 months)Built and led the Site Reliability Engineering (SRE) department, optimizing platform performance and resilience for SalesLoft’s cloud-native infrastructure.
Established and scaled the Infrastructure function, growing the team to four specialized engineering teams (Core SRE, Systems Engineering, Email Deliverability & Call Quality, and Database Administration).
Designed and built a multi-cloud platform spanning AWS and GCP, enhancing reliability and disaster recovery capabilities.
Developed extensive custom Kubernetes tooling, including authentication plugins, deployment management APIs, and a global deployment operator using Python, Go, and Elixir.
Led cross-functional initiatives to reduce incide - DevOps LeadKabbage IncApr 2016 - May 2017 (1 year 2 months)Spearheaded infrastructure automation and CI/CD pipeline improvements, enhancing deployment efficiency and service reliability.
- Senior Product EngineerRackspace the managed cloud companyJun 2015 - Apr 2016 (11 months)Focused on platform architecture and scaling solutions for enterprise VMware-based private cloud services.
- DevOps Manager - Infrastructure ArchitectBoomTown Real Estate PlatformJan 2013 - May 2015 (2 years 5 months)Designed and led the DevOps strategy for a rapidly scaling SaaS platform.
- Technical Lead, InfrastructureThe MIL CorporationOct 2010 - Jan 2013 (2 years 4 months)Led critical infrastructure projects supporting high-security government applications.
- Systems AdministratorBlackbaudJan 2008 - Oct 2010 (2 years 10 months)Managed enterprise IT infrastructure, ensuring system uptime and performance for early SaaS platform.
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