Staff Full Stack Engineer, Contacts

About the team & opportunity:

• Calendly’s Contacts team is building a system that turns contacts data into a rich, reliable system of record.
• We’re taking a 0 - 1 product to its next phase of maturity, scale, and innovation.
• That means evolving our architecture, hardening our platform, and rapidly iterating on new AI-powered workflows

Why do we need you?:

• Own critical parts of our Contacts stack end-to-end, from technical design to rollout and ongoing reliability.
• Guide the evolution from early-stage architecture to a scalable, well-instrumented, multi-tenant system that other teams can safely build on.
• Lead big, cross-cutting “0–1 to 1–100” initiatives in partnership with Product, Design, and other Engineering team

A day in the life of an Staff Engineer at Calendly

• Design and evolve services and data models for contacts and relationships that can support new workflows and downstream consumers.
• Break down ambiguous problem spaces into clear milestones and incremental, ship-as-you-go plans.
• Collaborate with PMs and designers to translate customer problems into pragmatic solutions, especially for solopreneurs and small teams adopting CRM for the first time.