Learning Management Systems (LMS) like Canvas, Moodle, and Blackboard are the operational hubs for educational institutions and corporate training sectors. To unlock Testlify's talent assessment capabilities for these massive ecosystems, an exceptionally secure, compliant bridge was required. Actively operating as a solo full-stack engineer, I architected and shipped the Testlify LTI Plugin, a seamless integration designed to connect Testlify directly inside the instructor's native LMS environment.
Technical Scope & Architecture
- Custom LTI 1.3 Cryptographic Engine: Foregoing heavy, black-boxed third-party LTI libraries, I engineered a highly secure, custom implementation from the ground up inside Next.js 14. I hand-rolled the strict OpenID Connect (OIDC) handshakes, handled deep JWT signature verifications, and established secure JWKS public key endpoints to guarantee impenetrable trust between the LMS and the platform.
- Automated Data Synchronization: Architected a sophisticated API layer to automate tedious administrative workflows. I integrated the Names and Role Provisioning Services (NRPS) to sync massive student rosters instantly, and built robust webhook listeners that utilize Assignment & Grade Services (AGS) to seamlessly push candidate assessment scores straight back into the LMS gradebook.
- Full-Stack System Design: Unified complex, multi-tenant API routing and a polished, accessible React 18 Dashboard UI into a single monolithic architecture. I designed scalable MongoDB schemas to handle secure LMS platform configurations and orchestrated advanced Docker setups to simulate isolated LMS environments for local testing.
Business Impact
By successfully engineering a frictionless, universally compliant LTI integration, this project aggressively expanded Testlify's addressable market into the Higher Education and Enterprise Training sectors. The automated Single Sign-On (SSO) and automatic grade synchronization completely eliminated administrative friction, empowering instructors to adopt the platform effortlessly and driving massive institutional engagement.