Senior Full Stack Engineer

Calendly

Senior Full Stack Engineer developing features for Calendly's SaaS platform. Collaborating with teams to enhance product architecture and scale services.

Posted 5/27/2026full-timeRemote • 🇺🇸 United StatesSenior💰 $187,000 - $271,920 per yearWebsite

Tech Stack

Tools & technologies

JavaScriptMicroservicesNode.js

About the role

Key responsibilities & impact

Collaborating within your team to build new features that are targeted at our highest impact enterprise customers
Contributing to platform scaling initiatives
Meeting regularly with Product and Design to fine tune requirements
Attending agile ceremonies to help your team plan out their work and get it done
Working across squads to improve Engineering practices at Calendly
Reviewing implementation plans and pull requests from your peers
Mentoring and coaching other team members

Requirements

What you’ll need

7-10 years of professional software development experience in a SaaS or technology-driven environment.
Strong, hands-on full-stack engineering skills, with the ability to independently design, build, and ship production changes across frontend and backend systems
Experience building and maintaining Node.js services that interface with distributed APIs, LLMs, or similar mixed-stack environments.
Hands-on experience with Service-Oriented Architectures (SOA), microservices, and involvement in monolith-to-services modernization or large-scale refactoring initiatives.
Proven ability to own features end-to-end, including technical discovery, design, implementation, testing, release, and ongoing maintenance.
Strong analytical and problem-solving skills, with the ability to dissect complex systems, identify root causes of issues, and deliver scalable, maintainable solutions.
A commitment to writing clean, reliable, and maintainable code, with an emphasis on readability, simplicity, and performance.
Adaptability to new technologies, evolving architectural patterns, and changing organizational priorities.
Experience using AI coding assistants (Copilot, Cursor, etc.) as productivity tools, with a clear understanding of generated code and the ability to defend implementation choices.
Availability for participation in an on-call rotation, ensuring timely and effective responses to critical production issues outside of regular working hours.
Authorized to work lawfully in the United States, as Calendly does not offer immigration sponsorship at this time.

Benefits

Comp & perks

Base salary is just one component of Calendly’s total rewards package
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

full-stack engineeringNode.jsService-Oriented Architecturesmicroservicesmonolith-to-services modernizationtechnical discoverydesignimplementationtestingmaintenance

Soft Skills

analytical skillsproblem-solving skillsadaptabilitymentoringcoachingcollaborationcommunicationownershipattention to detailcommitment to quality