Teamtailor operates a SaaS recruitment platform used by over 12,000 companies across 90+ countries, serving 200,000 recruiters who manage applicant tracking, candidate relationship management, and onboarding workflows. Founded in Stockholm in 2013, the company builds on a Ruby on Rails backend with Stimulus.js and Tailwind CSS on the frontend, integrating with over 450 third-party tools to extend platform functionality across HR and recruiting ecosystems.
The platform's surface area includes applicant tracking systems, employer branding tools, and recently introduced AI Co-pilot features designed to automate repetitive recruitment tasks. Automation triggers handle workflow orchestration across candidate pipelines, while deep integrations mean data flows between Teamtailor and external tools used for background checks, assessments, and HRIS systems. The threat model here is typical for HR SaaS: sensitive candidate PII at scale, authentication across hundreds of customer tenants, and API security across 450+ integration points.
The technical stack is relatively conventional - Rails for the backend logic, Stimulus for lightweight JavaScript interactions, and Tailwind for UI consistency. Security operations likely focus on tenant isolation, access controls across recruiter roles, and securing API integrations that touch candidate data. Founded by Erik Andersson, David Wennergren, and Richard Johansson, the company positions itself as candidate-centric, which in practice means building systems that handle high-volume applicant data while maintaining usability for non-technical recruiters.