Mahdi User

I've built and evolved production systems for Danayan, Azki, Polcard, and other organizations across fintech, payment gateways, crypto exchanges, and crowdfunding.

I deliver features end-to-end, from APIs and data layers to front-end interfaces, admin panels, and AI or third-party integrations. My work prioritizes transaction accuracy and system correctness to help protect user funds.

At Ava Communication, I owned analysis and system architecture for national network infrastructure, designing telecom data and backend platforms serving millions of users. I evaluated technical trade-offs for high availability and production reliability, and onboarded teams of up to 50 engineers through documentation and training.

Earlier at Bamdad, I developed and maintained the company website and CRM, building database-driven models, queries, and CRUD features that supported sales and operations workflows. I also refactor legacy systems, containerize services with Docker, and build CI/CD pipelines for consistent deployments.