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, architecting systems, 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 a 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.
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 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 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.
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.
All candidates can find our Candidate Privacy Statement here.
Candidates residing in California may visit our Notice at Collection for California Candidates here: Notice at Collection.
This role may require occasional travel for company events, team collaboration, or offsites.
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