QSlots: online testing platform with proctoring

About the project

QSlots is a cloud platform for conducting remote testing with support for proctoring (Examus), automatic personal identification and control of exam integrity. A unique modern interface was developed, integration with the Examus service was implemented to control the submission process, a scalable backend was built on Laravel and a fast frontend on React. The platform is suitable for universities, corporations, continuing education centers and online schools.

Business problem

• Create a reliable platform for mass online testing with safe examinations.
• Develop an individual design, intuitive UX for different categories of users (students, teachers, administrators).
• Integrate Examus automatic proctoring: user identification, suspicious activity tracking, reports.
• Provide a fast interface using React and a stable backend using Laravel.
• Implement a system of flexible test setup: timings, random order of questions, anti-cheat mechanics.
• Implement automatic generation of reports, export of results, integration with external systems.

Technical solution

• Frontend on React: fast, responsive interface, adaptable to any device.
• Backend on Laravel: reliable architecture, scalability, high level of security.
• Integration with Examus: automatic proctoring, video and audio control, analysis of suspicious events.
• Multi-level authorization and role-based access (administrator, teacher, student).
• Test constructor: various types of questions, import/export, random answer options.
• Instant verification, automatic and manual assessments, reports on groups and individual users.
• Built-in notifications, integration with email/SMS, API for external LMS and corporate portals.
• Adaptive individual design, custom branding.

Technologies

• React (frontend)
• Laravel (backend)
• Examus API (proctoring)
• Docker (deploy)
• PostgreSQL / MySQL
• REST API
• WebRTC, WebSockets

Results

• The platform can withstand simultaneous testing of more than 5,000 users without crashes.
• Implemented and used by major corporate and educational clients.
• High UX/UI scores from teachers and students, reduction in the number of technical requests.
• Significant reduction in fraud through proctoring.
• Integration with internal customer systems has been accelerated due to a well-thought-out API.

Interface gallery

Customer review

"QSlots allowed us to move mass exams online without losing quality or integrity. The platform is easy to use for both employees and students. The support is top notch!"

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