Senior Full Stack Engineer, Support Engineering

Senior Full Stack Engineer, Support Engineering Remote - US What’s in it for you? Ready to make a serious impact? Millions of people already rely on Calendly, and we’re still in the midst of exciting product growth — it’s a fantastic time to join us.

Everything you’ll work on here will accelerate your career to the next level. If you want to learn, grow, and do the best work of your life alongside the best people you’ve ever worked with, then we hope you’ll consider allowing Calendly to be a part of your professional journey. About the team & opportunity As a Senior Software Engineer on the Support Engineering team, you’ll have the opportunity to shape and scale the internal tools, integrations, and in product capabilities that power our go-to-market teams.

You’ll work closely with Sales, Marketing, and Customer Success to uncover operational gaps and turn them into thoughtful, high impact solutions. This role offers end-to‑end ownership including defining problems and architecting systems to building, launching and continuously improving them. It’s a chance to blend deep technical expertise with cross‑functional collaboration in a highly visible, business‑critical area.

Your work will directly enable teams to move faster, operate more effectively, and deliver a better experience to our customers. Experience with Go, Ruby and React is a plus. A day in the life of a Senior Full Stack Engineer at Calendly Design, build, and operate services and APIs for contacts, companies, syncing third‑party data sources, deduplication, enrichment, and search—prioritizing reliability, performance, and maintainability.

Partner with Product and Design to shape requirements, sequence milestones, and deliver incremental value that supports our customers. Contribute to our data model and storage strategies for people and related objects, ensuring consistency, privacy, and scalability. Improve platform resilience with robust observability, fault‑tolerant patterns, and production readiness; participate in on‑call to support business‑critical services.

Collaborate with adjacent squads to evolve architecture and shared components; participate in code reviews and provide mentorship to peers. If you have React/TypeScript experience, contribute to end‑to‑end delivery by partnering on UI contracts and occasionally implementing UI that integrates with your services. On a typical day, you will be working on: Design, build and maintain internal tools, integrations and in‑product features that enable Sales, Marketing and Customer Success teams to operate efficiently and scale.

Partner closely with cross‑functional stakeholders to identify pain points, define requirements, and deliver high‑impact, user‑centric solutions. Own projects end‑to‑end, from discovery and system design through implementation, testing, deployment and ongoing iteration. Ensure reliability, performance and scalability of systems while continuously improving developer workflows and internal user experience.

What do we need from you? 7–10+ years of professional software development experience, including owning production services at scale in a SaaS environment. Strong proficiency in backend development, building services, APIs, and data‑intensive backend workflows. Must‑have.

Experience designing for scalability, reliability, and observability in cloud environments (GCP preferred) with container orchestration (Kubernetes). Experience with service‑oriented architectures and modernizing or decomposing legacy systems to services where appropriate. Proficient with relational databases (PostgreSQL preferred) and data modeling for complex domains.

Bias for clean, maintainable code, thoughtful testing and incremental delivery; strong collaboration and communication skills. Nice to have: Frontend experience with React and TypeScript or strong interest in partnering closely on UI contracts and end‑to‑end delivery. Experience with microfrontends, Node services, Rails ecosystems, and event‑driven architectures.

Other requirements: Availability to participate in an on‑call rotation for critical services. Authorized to work lawfully in the United States of America, as Calendly does not engage in immigration sponsorship at this time. Salary 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.

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. Geographic Pay Tier Calendly determines the metropolitan pay range based on the remote work location or onsite building location.

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. Accommodations and Eligibility 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. #J-18808-Ljbffr