Full Stack Engineer – III

🕒 October 19

🇺🇸 United States – Remote

💵 $156.4k - $227.4k / year

⏰ Full Time

🟡 Mid-level

🟠 Senior

🧑‍💻 Full-stack Engineer

👻 Ghost score 0%

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Calendly

WebsiteLinkedInAll Job Openings

501 - 1000 employees

Founded 2013

☁️ SaaS

⚡ Productivity

🏢 Enterprise

💰 $3.5G Series B on 2021-01

SaaS • Productivity • Enterprise

Calendly is a leading scheduling platform, trusted by over 100,000 organizations worldwide, including 86% of Fortune 500 companies. It simplifies the process of scheduling meetings through integrations with Google Calendar, Microsoft Outlook, and other calendar systems. Calendly offers tools for automated meeting reminders, follow-ups, and customizable scheduling options, making it suitable for individual users and enterprise organizations alike. With features like video conferencing tool integration, custom event types, and comprehensive admin management, it supports a seamless scheduling experience and boosts productivity across teams. Calendly’s platform integrates with over 70 other tools to enhance workflow efficiencies, offering solutions for individuals, teams, and enterprise-level clients.

📋 Description

• Build and improve systems that detect and stop abuse across sign-up, booking, and messaging, including spam, phishing, bots, and fraudulent SMS traffic • Improve the reliability, deliverability, and compliance of Calendly email and SMS notifications • Ship new detection carefully by measuring real-traffic performance and weighing false positives against false negatives • Respond to active abuse during on-call, stopping damage quickly and replacing temporary fixes with durable solutions • Build tools that help Trust & Safety Operations review accounts faster and understand system decisions • Partner with Product, Operations, and Data to define requirements and measure impact • Work with product teams to add protections to their workflows • Review implementation plans and pull requests and share learnings with the team • Report to the Engineering Manager for the Trust & Safety team

🎯 Requirements

• 3+ years of professional software development experience at a SaaS or technology company, including building and running production systems • Strong backend skills building services, APIs, and data-heavy workflows in a service-oriented architecture • Experience with Rails, Node/TypeScript, Go, or a comparable language or framework, and willingness to work across more than one • Comfort with relational databases and SQL • Analytical and curious mindset focused on potential system misuse • Good judgment about trade-offs between stopping bad actors and avoiding customer friction • Commitment to clean, reliable, maintainable code, thoughtful testing, and incremental delivery • Clear communication with engineers and non-engineers, including Operations and Support partners • Comfort and skill with AI tools in engineering work, including critical review of their output • Availability for an on-call rotation for critical services • Authorized to work lawfully in the United States; Calendly does not provide immigration sponsorship • Nice to have: experience in trust and safety, fraud, spam, or abuse prevention • Nice to have: experience with email or SMS delivery, deliverability, sender reputation, or messaging compliance • Nice to have: experience with bot protection, rate limiting, or third-party risk and verification services • Nice to have: experience building rules engines, risk scoring, or ML-backed production decisions • Nice to have: experience using LLMs to classify or moderate user-generated content • Nice to have: experience with GCP, Kubernetes, PostgreSQL, or Redis

🏖️ Benefits

• Equity awards for eligible full-time employees (30+ hours/week) • Competitive benefits • Occasional travel for company events, team collaboration, or offsites • Reasonable accommodation available during the application or recruiting process