• Shape future-proof interfaces that are easy to build against and meet the requirements of client-facing teams • Brainstorm with Product Managers, Designers, Frontend Engineers, and other cross-functional partners to conceptualize and build new features for our growing user base • Produce high-quality results by leading or contributing heavily to large cross-functional projects that have a significant impact on the business • Debug production issues across services and multiple levels of the stack, and uplevel the observability and reliability of the overall system • Improve engineering standards, and AI tooling adoption.

Role Description 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 Qualifications - 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 Salary Ranges - 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 The ranges listed above are the expected annual base salary for this role, subject to change. Calendly takes a number of factors into consideration when determining an employee’s starting salary, including relevant experience, relevant skills sets, interview performance, location/metropolitan area, and internal pay equity. 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. Calendly uses the zip code of an employee’s remote work location, or the onsite building location if hybrid, to determine which metropolitan pay range we use. Current geographic zones are as follows: - Tier 1: San Francisco, CA, San Jose, CA, New York City, NY - Tier 2: Chicago, IL, Austin, TX, Denver, CO, Boston, MA, Washington D.C., Philadelphia, PA, Portland, OR, Seattle, WA, Miami, FL, and all other cities in CA. - Tier 3: All other locations not in Tier 1 or Tier 2 Additional Information If you are an individual with a disability and would like to request a reasonable accommodation as part of the application or recruiting process, please let your Recruiter know when first connecting with them. Calendly is registered as an employer in many, but not all, states. If you are located in Alaska, Delaware, Hawaii, Idaho, Iowa, Montana, Nebraska, North Dakota, Rhode Island, South Dakota, and West Virginia, you will not be eligible for employment. Note that all individual roles will specify location eligibility. This role may require occasional travel for company events, team collaboration, or offsites.

• Build and maintain features across Angular, ASP.NET Core, C#, and PostgreSQL • Design and implement scalable APIs and services (SOA/event‑driven) • Contribute to architecture decisions around performance, reliability, and maintainability • Collaborate with a strong engineering team and participate in reviews and design discussions • Support and mentor developers as the team grows

• Design and build automated reliability and self-healing systems that protect production at scale, including automated rollbacks, deploy safeguards, and fault mitigation, and deliver them as platform tooling that engineering teams across the company adopt for their own services. • Own and improve incident management tooling and on-call health. Reduce alert noise, surface actionable signals, and empower engineering teams to operate their services confidently with minimal operational burden. • Develop and evolve our observability infrastructure, including monitoring, alerting, SLOs, and performance regression detection, to give teams real-time, actionable visibility into system health and latency. • Contribute to AI-driven operational tooling that goes beyond triage, building toward autonomous remediation where AI detects issues, takes corrective action, and self-recovers with minimal human involvement. • Drive incident prevention by identifying systemic patterns and ruthlessly eliminating operational toil. You have deep empathy for on-call engineers and a bias toward making their lives better. • Partner directly with product engineering teams to diagnose reliability gaps, reduce their operational burden, and help them adopt best practices for running their services. • Define and champion operational excellence best practices across engineering through guardrails, scorecards, and standards that help teams run their services reliably by default. • Champion, role model, and embed Samsara’s cultural principles (Focus on Customer Success, Build for the Long Term, Adopt a Growth Mindset, Be Inclusive, Win as a Team) as we scale globally and across new offices.