Senior Full Stack Engineer – Support Engineering

Calendly

Senior Software Engineer building and operating services and APIs for Calendly's go-to-market teams. Collaborating cross-functionally to enhance internal tools and integrations for operational efficiency.

Posted 4/30/2026full-timeRemote • 🇺🇸 United StatesSenior💰 $187,000 - $271,920 per yearWebsite

Tech Stack

Tools & technologies

CloudGoogle Cloud PlatformKubernetesPostgresReactTypeScript

About the role

Key responsibilities & impact

Design, build, and operate services and APIs for contacts, companies, syncing third party data sources, deduplication, enrichment, and search - prioritizing reliability, performance, and maintainability.
Partner with Product and Design to shape requirements, sequence milestones, and deliver incremental value that supports our customers.
Contribute to our data model and storage strategies for people and related objects, ensuring consistency, privacy, and scalability.
Improve platform resilience with robust observability, fault-tolerant patterns, and production readiness; participate in on-call to support business critical services.
Collaborate with adjacent squads to evolve architecture and shared components; participate in code reviews and provide mentorship to peers.
If you have React/TypeScript experience, contribute to end to end delivery by partnering on UI contracts and occasionally implementing UI that integrates with your services.

Requirements

What you’ll need

7-10+ years of professional software development experience, including owning production services at scale in a SaaS environment.
Strong proficiency in backend development, building services, APIs, and data-intensive backend workflows. Must-have.
Experience designing for scalability, reliability and observability in cloud environments (GCP preferred) with container orchestration (Kubernetes).
Experience with service oriented architectures and modernizing or decomposing legacy systems to services where appropriate.
Proficient with relational databases (PostgreSQL preferred) and data modeling for complex domains.
Bias for clean, maintainable code, thoughtful testing and incremental delivery; strong collaboration and communication skills.
Availability to participate in an on-call rotation for critical services.
Authorized to work lawfully in the United States of America, as Calendly does not engage in immigration sponsorship at this time.

Benefits

Comp & perks

Top Performer Bonus program (or Sales incentive)
equity awards
competitive benefits

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

backend developmentAPIsdata modelingscalabilityreliabilityobservabilitycontainer orchestrationKubernetesrelational databasesPostgreSQL

Soft Skills

collaborationcommunicationmentorshipclean codethoughtful testingincremental delivery