Full Stack Engineer, Commerce

Role Overview

• Collaborating within your squad to build and iterate on commerce features that drive measurable business impact across self‑serve and enterprise customers.
• Contributing to platform scaling initiatives while improving reliability and performance in user critical flows.
• Meeting regularly with Product and Design to fine tune requirements, define MVPs, and instrument experiments that validate value quickly.
• Attending agile ceremonies to help your team plan out their work and get it done with predictable delivery.
• Working across squads to improve engineering practices and evolve shared monorepo tooling and service boundaries.
• Reviewing implementation plans and pull requests from your peers with a focus on simplicity, maintainability, and incremental delivery.
• Contributing to a high trust, professional casual culture grounded in respect and ownership.
• Using AI assistants thoughtfully to scaffold code, generate tests, draft documentation, analyze logs, and accelerate experiments. Choosing when not to use AI based on risk, privacy, and correctness considerations.

Requirements

• 3+ years of professional software development experience in a SaaS or technology driven environment.
• Strong proficiency in React and TypeScript for modern front end web development, supporting end to end feature delivery.
• Professional experience in backend engineering with Node.js, including building and maintaining scalable services and APIs that are observable, reliable, and secure.
• Experience with PostgreSQL, including schema design, query optimization, and data modeling for transactional systems.
• Experience designing and consuming GraphQL APIs in production environments.
• Background in mixed stack environments, such as Node.js services interfacing with a Ruby on Rails monolithic API, or similar mixed stack environments.
• Hands-on experience with Service Oriented Architecture (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, with a bias toward small, incremental, high quality releases.
• Strong analytical and problem solving skills, with the ability to dissect complex systems, identify root causes, 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.
• Availability for participation in an on call rotation, ensuring timely and effective responses to critical production issues outside of regular working hours.
• Comfort and proficiency using AI tools in engineering workflows to increase velocity and quality, including effective prompt craft, critical review of outputs, and responsible data handling in line with privacy and security expectations.
• Authorized to work lawfully in the United States, as Calendly does not offer immigration sponsorship at this time.

Tech Stack

• GraphQL
• JavaScript
• Microservices
• Node.js
• Postgres
• React
• Ruby
• Ruby on Rails
• TypeScript

Benefits

• Top Performer Bonus program
• Equity awards
• Competitive benefits