Senior Full-Stack Engineer - Security

Summary

Join ClassDojo as a full-stack engineer and help build systems supporting rapid growth. You will work on production code from day one, deploying frequently and impacting millions of users. Collaborate with cross-functional teams, contributing to a high-quality engineering culture that values rapid iteration and best practices. Your responsibilities include owning platform security strategy, building security tooling, and embedding security into development workflows. You will also write, debug, and optimize code, deliver features incrementally, and contribute to technical design and architecture. This role requires significant experience in software engineering, security, and working in a fast-paced environment. The ideal candidate will have a passion for education and a commitment to creating a world-class engineering culture.

Requirements

• You have 8-10+ years of professional software experience
• You have worked at companies at various sizes and stages - from well known larger tech players all the way to startup stage (whether as a founder/co-founder or in a high growth stretch)
• You have delivered impactful user and business outcomes
• You have driven technical excellence through improvements to process, practices, and tools (e.g. experience with test automation, CI/CD, and DevOps practices)
• You have experience securing systems that handle sensitive personal data, preferably in education, healthcare, or other regulated industries
• You have strong communication. You clearly translate business requirements into technical solutions
• You're excited to get things done, in a fast-paced environment
• You have an ownership mindset: you are comfortable with both responsibility and accountability
• You're thoughtful about creating and maintaining a world-class engineering culture
• You work well in teams and enjoy collaborating with engineers, designers and product teams
• You enjoy working in a pair programming environment
• You are passionate about education and care about having impact on tens of millions of kids' lives with your work
• You live and work in the Americas timezones

Responsibilities

• Own and execute platform security strategy across all ClassDojo products and infrastructure
• Build and maintain security tooling, monitoring, and automated security testing pipelines
• Collaborate cross-functionally with product, engineering, and compliance teams to embed security into development workflows
• Ship new and improved features to end users in collaboration with your team
• Write, debug, and optimize new and existing code for our web apps, API, databases, infrastructure with automated tests and monitoring
• Deliver code to production and features to users frequently and incrementally
• Collaborate with your team through pair programming, mob programming, code reviews, and design sessions
• Contribute to cross-team technical improvements and investments
• Seek out opportunities to provide shared value through improvements of our common systems, tooling, and practices
• Support and improve our build and delivery pipelines
• Contribute to technical design and architecture conversations with your expertise and perspective
• Contribute to better practice, processes and teamwork
• Help to unblock teammates as well as other teams through hands-on work and guidance
• Break work down so we can deliver value to users incrementally
• Help grow other engineers into more senior engineers
• Systematically improve the quality of our product and process
• Encourage collaboration and psychological safety
• Know and spread awareness about the larger business context of what teams and individuals are working on

Preferred Qualifications

• You’ve used Node and/or React at scale
• You've worked with MongoDB or MySQL
• You have DevOps experience, especially on AWS