Scalable REST API & Data Service
High-performance backend API with relational data modeling, RBAC, and transactional integrity
Interactive Architecture & Pipeline Inspector
Klinik Voice Intake & Triage Pipeline
Real-time stateful voice agent architecture with deterministic clinical triage routing
Audio Ingest Stream
Role: Client Microphone FeedCaptures spoken patient audio chunks in real-time over bi-directional duplex WebSockets with voice activity detection (VAD).
Modern applications require secure, auditable, and performant backend services that handle concurrent requests without data race conditions or silent failures.
Designed and developed a production-ready RESTful backend service with TypeScript, role-based access control (RBAC), robust input validation, database connection pooling, and structured error logging.
Architected database schemas, established transactional boundaries for multi-table writes, implemented rate limiting, and wrote comprehensive unit/integration test suites.
Architectural Breakdown
- 1Layered architecture: Controllers -> Services -> Data Access Layer (Repositories)
- 2Centralized error handling middleware mapping domain exceptions to RFC 7807 problem details
- 3JWT-based authentication paired with token revocation blacklists in Redis
- 4Database migration scripts and automated schema synchronization via CI pipelines
Key Engineering Decisions & Rationale
Strict validation at controller boundaries
Validating input schemas before hitting service layers prevented malformed inputs from polluting domain logic and databases.
Explicit database transactions
Ensured atomic operations for financial and multi-entity operations, guaranteeing consistency on unexpected network disconnects.
Challenges & Trade-offs
- •Adopted strict TypeScript compiler settings (`strict: true`, `noImplicitAny: true`) which slowed initial scaffolding but prevented dozens of runtime null pointer defects.
What I Learned
- ✓Designing clean relational foreign key constraints and indexes early pays massive dividends when query volumes grow.
Interested in similar architecture for your team?
Let's evaluate your current requirements and engineering constraints.