Senior Full Stack Engineer

Role Description

We are looking for a Full Stack Engineer who will bring technical know-how and enthusiasm to our team. You will report to one of our Engineering Managers and will be responsible for supporting features and architecture designed to maintain our users’ confidence in Calendly.

A day in the life of a Full Stack Engineer at Calendly includes:

• 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

Qualifications

• 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

Requirements

• Tier 1 Salary Hiring Range: $224,400 — $271,920 USD
• Tier 2 Salary Hiring Range: $205,700 — $249,260 USD
• Tier 3 Salary Hiring Range: $187,000 — $226,600 USD
• Base salary is just one component of Calendly’s total rewards package
• All full-time (30 hours/week) employees are also eligible for our Top Performer Bonus program (or Sales incentive), equity awards, and competitive benefits

Benefits

• Competitive salary based on experience and location
• Top Performer Bonus program (or Sales incentive)
• Equity awards
• Comprehensive benefits package