Senior Full Stack Engineer, Growth

About the team & opportunity

This role focuses on building and running high-impact experiments that improve how users discover, adopt, and pay for Calendly within our Growth organization. You'll work across the stack, partner closely with product and analysts, and ship changes that are measured in real business outcomes.

This is not a traditional feature team role. The work is fast-moving, iterative, and data-driven. You'll regularly balance speed, quality, and long-term maintainability while operating in an environment with incomplete information.

What we value on Growth
  • Ownership and follow-through; You care about results and learning, not just delivery
  • Sound judgment paired with a bias toward action
  • Technical leadership that raises the bar for the team
  • Curiosity, humility, and openness to diverse perspectives
A day in the life of a Senior Full Stack Engineer at Calendly
  • Design, build, and ship full-stack growth experiments end-to-end
  • Improve key metrics across acquisition, activation, engagement, and monetization
  • Collaborate daily with product managers, designers, and analysts
  • Analyze experiment results and iterate quickly based on data
  • Contribute to our experimentation platform and growth infrastructure
  • Make thoughtful engineering tradeoffs in pursuit of impact

On a typical week, you might:

  • Build and ship an experiment that impacts a core funnel step
  • Partner with product, design, and analysts to refine a hypothesis or flow
  • Review experiment results and decide what to iterate, keep, or remove
  • Improve or extend internal tooling that supports experimentation
  • Review code, mentor teammates, and participate in team ceremonies
What do we need from you?
  • 5+ years of professional software experience, with much of that working on user growth (acquisition, activation, retention) or monetization
  • Strong, hands-on full-stack engineering skills, with the ability to independently design, build, and ship production changes across frontend and backend systems
  • Demonstrated experience running product experiments end-to-end
  • A data-driven approach to problem solving
  • The judgment to balance speed and quality in a growth environment
  • Comfort operating in ambiguous problem spaces where the path forward is not fully defined and success is measured by outcomes, not effort
  • A collaborative working style and the ability to partner deeply with product, design, and analytics to drive results
  • A collaborative mindset and a willingness to give and receive feedback
  • Authorized to work lawfully in the United States of America as Calendly does not engage in immigration sponsorship at this time.
Strong candidates might:
  • Arrive with clear points of view on what experiments to run, why they matter, and how to evaluate their impact
  • Be able to quickly dive into data to uncover growth or monetization opportunities
  • Demonstrate ownership beyond implementation, from hypothesis formulation through post-launch analysis and follow-ups
  • Have experience scaling growth systems or experimentation platforms in a production environment
Our stack

You don't need experience with everything below, but you should be excited to work across it:

  • Backend: Ruby on Rails, Grape, PostgreSQL, Redis
  • Frontend: React, TypeScript
  • Infrastructure: Google Cloud Platform, Kubernetes, Argo Workflows
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Common Interview Questions And Answers

1. HOW DO YOU PLAN YOUR DAY?

This is what this question poses: When do you focus and start working seriously? What are the hours you work optimally? Are you a night owl? A morning bird? Remote teams can be made up of people working on different shifts and around the world, so you won't necessarily be stuck in the 9-5 schedule if it's not for you...

2. HOW DO YOU USE THE DIFFERENT COMMUNICATION TOOLS IN DIFFERENT SITUATIONS?

When you're working on a remote team, there's no way to chat in the hallway between meetings or catch up on the latest project during an office carpool. Therefore, virtual communication will be absolutely essential to get your work done...

3. WHAT IS "WORKING REMOTE" REALLY FOR YOU?

Many people want to work remotely because of the flexibility it allows. You can work anywhere and at any time of the day...

4. WHAT DO YOU NEED IN YOUR PHYSICAL WORKSPACE TO SUCCEED IN YOUR WORK?

With this question, companies are looking to see what equipment they may need to provide you with and to verify how aware you are of what remote working could mean for you physically and logistically...

5. HOW DO YOU PROCESS INFORMATION?

Several years ago, I was working in a team to plan a big event. My supervisor made us all work as a team before the big day. One of our activities has been to find out how each of us processes information...

6. HOW DO YOU MANAGE THE CALENDAR AND THE PROGRAM? WHICH APPLICATIONS / SYSTEM DO YOU USE?

Or you may receive even more specific questions, such as: What's on your calendar? Do you plan blocks of time to do certain types of work? Do you have an open calendar that everyone can see?...

7. HOW DO YOU ORGANIZE FILES, LINKS, AND TABS ON YOUR COMPUTER?

Just like your schedule, how you track files and other information is very important. After all, everything is digital!...

8. HOW TO PRIORITIZE WORK?

The day I watched Marie Forleo's film separating the important from the urgent, my life changed. Not all remote jobs start fast, but most of them are...

9. HOW DO YOU PREPARE FOR A MEETING AND PREPARE A MEETING? WHAT DO YOU SEE HAPPENING DURING THE MEETING?

Just as communication is essential when working remotely, so is organization. Because you won't have those opportunities in the elevator or a casual conversation in the lunchroom, you should take advantage of the little time you have in a video or phone conference...

10. HOW DO YOU USE TECHNOLOGY ON A DAILY BASIS, IN YOUR WORK AND FOR YOUR PLEASURE?

This is a great question because it shows your comfort level with technology, which is very important for a remote worker because you will be working with technology over time...

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