A Full-Stack Developer building production-grade web applications with Next.js and FastAPI. Alongside full-stack work, I conduct authorized penetration testing and am expanding into AI engineering, building LLM-based systems and multi-agent architectures.
- Building full-stack applications for local and international clients as a freelance developer
- Conducting authorized penetration tests on production systems, including web applications and identity platforms
- Building AI-powered applications, RAG pipelines, and multi-agent systems
- Transitioning deeper into AI engineering: LLM integration, retrieval evaluation, and prompt engineering
- Frontend: Next.js (App Router), React, TypeScript, Tailwind CSS, shadcn/ui
- Backend: FastAPI, Python, Node.js
- Databases: PostgreSQL, Prisma, MongoDB, Redis
- AI/ML: LLM integration, RAG, multi-agent systems, prompt engineering
- Security: Web/API penetration testing, vulnerability analysis, reporting
- Tools: Docker, Git, Linux
- Distributed Job Processing System — production-oriented platform exploring queues, concurrency, retries, idempotency, worker coordination, and failure handling
- Production SaaS Platform — multi-tenant application with authentication, authorization, background jobs, audit logging, PostgreSQL, Redis, Docker, testing, and CI/CD
- Application Security Platform — authorized security testing and vulnerability management platform focused on web/API security assessment and professional reporting
- AI Knowledge Platform — production-oriented RAG system with retrieval evaluation, citations, observability, access control, and prompt-injection defenses
- LinkedIn: linkedin.com/in/yeab-tesefaye