roshankumar0036singh/auth-serverThe authentication server lacked token reuse detection, leaving users vulnerable to replay attacks if a refresh token was compromised or leaked.
Engineered a Refresh Token Reuse Detection system with Token Family tracking. When a revoked token is reused, it instantly triggers a family-wide revocation (terminating all active sessions for the user) and persists a REFRESH_TOKEN_REUSE_DETECTED security audit log.
vmDeshpande/ai-agent-automationThe workflow builder was rigidly coupled to hardcoded frontend configurations, making tool scaling and legacy workflow support nearly impossible without breaking the app.
Decoupled the architecture by engineering a schema-driven dynamic node system. Implemented backend filesystem auto-discovery for tools and a dynamic React <FieldRenderer /> to construct UI dynamically, alongside a safe migration layer for legacy data.
Eshajha19/Algo-Infinity-VerseEnterprise-scale API design concepts were taught using rigid static text and multiple-choice quizzes, offering no real developer experience.
Engineered a premium Single Page Application with 12 interactive simulators. Built a dynamic JWT claim decoder/tamper-checker, a live Rate Limiter token bucket simulator, and an RFC 7807 payload builder with client-side validation logic.
Eshajha19/Algo-Infinity-VerseNo interactive visualization existed to teach the O(1) eviction mechanics of complex memory systems like LRU and LFU caches.
Built a visual simulator for Doubly Linked List + HashMap architectures (LRU) and frequency bucket tracking (LFU). Implemented interactive workspaces for pointer re-linking challenges and eviction policy configuration.
Eshajha19/Algo-Infinity-VerseAdvanced Data Structures like Sparse Tables were difficult to grasp through static documentation.
Refactored the module into an interactive SPA with 5 custom challenges. Included a Manual Log Array Builder, Idempotent operation classifiers, and Interactive DP code completion, all tracked via persistent localStorage.