Samson Admasu

Senior backend engineer with 10+ years building and scaling production systems for fintech and neo-banking — now focused on shipping LLM-powered features. I own products end-to-end, from architecture and API design through deployment, observability, and incident response. What I build: • Backend & microservices — Java 11/17/21, Spring Boot, Node.js/NestJS, TypeScript, REST/gRPC/GraphQL, event-driven & domain-driven design, PostgreSQL, Kafka, Redis • AI / LLM applications — RAG pipelines, embeddings & vector search (pgvector, Pinecone), agentic and tool/function-calling workflows, multi-provider orchestration (OpenAI, Anthropic), prompt engineering, evaluation & guardrails • Cloud & DevOps — AWS, Docker, Kubernetes, CI/CD (GitLab, Jenkins), Datadog, automated testing (JUnit, Mockito, Testcontainers) Recent impact: • Lead solution architect on a neo-banking platform (ila Bank / Bank ABC) — delivered loan, card, and subscription domains on event-driven microservices. • Modernized a legacy monolith into microservices, lifting API throughput from ~10k to ~700k items. • Built AI-powered conversational and agentic features, integrating LLMs into production workflows. Fully remote, flexible across all time zones, and a clear communicator in English. Whether you need a robust backend, a RAG/agent system, or an AI feature integrated into an existing product, I deliver clean, well-tested, production-ready work.

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