Hasan Safwan

Hands-on technical lead in a product-focused engineering team, combining people leadership with architecture, backend development, and production support. Main technical contact across the organization: client incident escalation, system design decisions, and introducing new tools when useful. Drove predictable delivery via deployment automation. Led SQL Server performance work: execution plan analysis, indexing, query rewrites. Introduced GitHub Copilot and ran internal LLM sessions to reduce tech debt.

Led end-to-end development of a greenfield, multi-tenant SaaS platform for salons and beauty centers, replacing manual scheduling with a centralized web and mobile solution. Owned the full technical scope: architecture, backend design, data modeling, cloud infrastructure, and integrations such as payments and real-time notifications. Technical lead for a distributed team across several countries, reviewing most production code and making final architectural trade-offs while staying hands-on.

Replaced manual deployment processes with an automated pipeline (MSBuild, Subversion, PowerShell), reducing release friction and operational risk. Led performance-critical SQL Server optimizations by analyzing execution plans, introducing targeted indexes, and rewriting problematic queries, cutting some execution times from minutes to seconds. Helped build more predictable, scalable delivery practices across the team.

Worked on security-sensitive .NET systems used in national traffic and identification contexts. Focused on refactoring legacy systems, improving backend performance, and implementing secure software modules aligned with regulatory requirements. Also developed a native Android application for RFID scanner devices used for real-time identity verification in the field.

Worked on GIS-driven web applications supporting large engineering and infrastructure projects. Built and optimized GIS web portals, improved performance and mobile accessibility, and integrated RESTful APIs to support real-time geospatial data synchronization across teams.