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About me

I’m Dereje Seifu, a Healthcare AI Systems Architect and Software Architect based in Addis Ababa, Ethiopia (GMT+3). My specialization in Healthcare AI developed through lead technical roles on FDA-cleared AI ultrasound platforms (Healium), where system reliability, zero-downtime teleguidance streaming, and HIPAA compliance were strict safety requirements rather than optional features.

I bridge the gap between cutting-edge LLM multi-agent/RAG workflows and deterministic clinical reliability. Whether architecting multi-tenant database isolation, HIPAA compliance envelopes, or low-latency inference pipelines, I take full end-to-end engineering ownership.

Production-First Delivery

Focusing on live uptime. I write clean, strongly-typed code with strict separation of concerns, delivering production infrastructure you can trust from day one.

End-to-End Ownership

I completely manage the full tech stack including frontends, application logic, database migrations, and webhooks removing technical gaps before deployment.

Pragmatic Architecture

No over-engineering or vanity features. I map development directly to core software deliverables, providing written architectural definitions and working builds.

Stack & capabilities

Tools I’ve shipped in production

Grouped systematically by core architecture and engine types. Every tag reflects actual code deployed and operating under live production conditions.

Software Architecture & System Design

How the product is structured and built to handle data scaling

Software ArchitectureSystem DesignSaaS ArchitectureDatabase Schema DesignMulti-tenant ArchitectureCapacity Planning

JavaScript & TypeScript Stacks

Core web application and transactional API delivery

TypeScriptNext.jsReactNode.jsNestJSExpressMERNPERN

AI Integration & Retrieval

Shipping production-ready pipeline integrations

AI IntegrationStructured AI PipelinesLangChainVector Databases

Python & Core APIs

High-performance services and background processing backends

PythonFastAPI

Cloud, DevOps & Data Platforms

Where application infrastructure runs and persists data securely

AWS (Lambda, Serverless)SupabasePostgreSQLDatabase Isolation

Backend Performance & Scaling

Optimizing throughput and stability under live web traffic

API Latency OptimizationQuery & Index TuningCaching Layers (Redis)Async Jobs & Event QueuesRate Limiting & Webhook Security

Frontend Performance & Optimization

Ensuring responsive layout stability and perceived speed

Core Web VitalsLCP & CLS TuningCode Splitting & Lazy LoadingAsset & Image OptimizationCDN-friendly Builds

SEO & Search Visibility

Technical structure, clean indexing, and crawler discoverability

Technical SEOMetadata & Open GraphStructured Data (JSON-LD)Sitemaps & Indexing

Voice & Telephony

Real-time telephony and voice-backed automation pipelines

VapiRetellTwilio

Workflow Automation & CRM Hooks

Automating background operations and marketing synchronization

N8NGoHighLevel (GHL) AutomationWebhook Integrations

Tools & API Integrations

Connecting core product features to operational platforms

Slack APIsWhatsApp Business APITelegram BotsNotion APIAirtable

Need to integrate a proprietary system or specific internal endpoint? If the platform exposed an API, handles webhooks, or has documentation, I can engineer the integration.