Hi, I’m Hossein Arian, a Senior Backend Engineer specializing in PHP/Laravel and multi-tenant SaaS. Over 10+ years I’ve built and scaled platforms, including a no-code mobile app builder that generated $500K in revenue, onboarding 4,000+ customers and powering 5,400+ published apps for 150,000+ end users. I design robust databases, API layers, authentication systems, and background processing pipelines that scale to thousands of tenants. I’m passionate about performance engineering and end-to-end ownership: I’ve sustained 99.9% uptime for a decade, cut API latency by 70% with Redis caching and targeted optimizations, and led zero-downtime migrations. I enjoy mentoring teammates and shaping architectural decisions in fast-moving environments. I’m open to relocating to Germany/EU and hold EU Blue Card eligibility.…Hi, I’m Hossein Arian, a Senior Backend Engineer specializing in PHP/Laravel and multi-tenant SaaS. Over 10+ years I’ve built and scaled platforms, including a no-code mobile app builder that generated $500K in revenue, onboarding 4,000+ customers and powering 5,400+ published apps for 150,000+ end users. I design robust databases, API layers, authentication systems, and background processing pipelines that scale to thousands of tenants. I’m passionate about performance engineering and end-to-end ownership: I’ve sustained 99.9% uptime for a decade, cut API latency by 70% with Redis caching and targeted optimizations, and led zero-downtime migrations. I enjoy mentoring teammates and shaping architectural decisions in fast-moving environments. I’m open to relocating to Germany/EU and hold EU Blue Card eligibility.WWWW…