Fetching data...
Fetching data...
AI Backend & Platform Engineer
Hi, I'm Yosef Teshome. I architect resilient FastAPI microservices, RAG knowledge retrieval platforms using PostgreSQL pgvector, autonomous AI agent tools, and containerized cloud platforms on Docker and Kubernetes.
Pydantic v2 validation, SSE token streaming & RBAC scopes
Reciprocal rank fusion (BM25 + Vector) & Tool Orchestration
FastAPI
pgvector DB
Cache / Queue
AI Services
Real-time Events
Production-grade AI systems, RAG knowledge retrieval platforms, high-concurrency backend services, and automated workflow orchestrators.
A production car detailing platform for appointment booking, service management, staff scheduling, availability, and business operations, backed by a Node.js/Express API and a React administrative dashboard.
• Production booking workflow with real-time availability management
A high-throughput RAG system enabling real-time semantic document search across internal repositories with pgvector, BM25 hybrid ranking, and document-level RBAC.
• Sub-400ms end-to-end retrieval latency
Outcome-driven AI and cloud backend solutions engineered for reliability, security, and scalability.
Design and deploy production-grade RAG systems that query complex document corpuses with precision, citations, and role-based access control.
Build autonomous AI agent workflows that interact with your internal APIs, databases, and third-party tools to automate complex multi-step processes.
Architect clean, robust, and asynchronous RESTful backend microservices capable of handling high concurrency with sub-50ms query latencies.
Containerize and orchestrate your backend microservices for seamless production deployment across Docker, Kubernetes, OpenShift, and AWS.
Proven engineering trajectory progressing from Cloud Infrastructure and Linux Systems to High-Concurrency FastAPI Backends and Production AI Systems.
Commercial Bank of Ethiopia
Configuring, tuning, and maintaining high-availability web server environments, enterprise application deployments, and mission-critical banking infrastructure operations.
Self-Employed
Architecting and delivering tailored backend architectures, high-performance RESTful APIs, database solutions, and cloud deployments for diverse client business requirements.
Commercial Bank of Ethiopia
Administered nationwide enterprise IT systems, directory infrastructure, network operations, hardware lifecycle, and identity access management for 50,000+ users.
Structured grouping of technical capabilities, infrastructure knowledge, data stores, and framework competencies.
Production RAG systems, vector embeddings, agent orchestration, and tool integration.
High-performance Python backends, async architectures, and RESTful API engineering.
Containerization, cluster orchestration, CI/CD pipelines, and cloud platform delivery.
Relational database modeling, vector indexing, migration management, and key-value caching.
Modern component architectures, type-safe layouts, and sleek responsive design.
Software is not just written to work — it is engineered to be maintained, monitored, and scaled in real production environments.
Analyze core domain constraints, performance requirements, security RBAC boundaries, and data access patterns.
Formulate modular FastAPI backend layouts, SQL schemas, vector search indexing strategies, and caching layers.
Write clean Python 3.12 code with async SQLAlchemy ORMs, Pydantic schemas, and typed API contracts.
Validate endpoints with pytest, mypy static typing, and concurrency benchmarks before container packaging.
Construct multi-stage Docker builds with non-root security contexts and minimal layer sizes.
Deploy onto Docker Compose, Kubernetes, or OpenShift clusters with live health and readiness probes.
Whether you need a production RAG system, high-throughput FastAPI backend microservice, or cloud-native infrastructure, let's connect.