I am a senior backend engineer with over a decade of experience building scalable multi-tenant SaaS platforms. I led the creation of a no-code mobile app builder from greenfield to $500K in revenue, taking ownership of database architecture, API layer, authentication, and background processing to serve 150,000+ end users across 5,400+ published apps. I thrive on performance engineering, architectural decisions, and mentoring teammates to ship reliable, high-impact features. I am open to relocation to Germany/EU and excited to bring my backend expertise to ambitious products. In my roles, I partner closely with product and success teams to deliver scalable systems, maintain uptime, and drive cost efficiencies. I value clear design, robust testing, and collaborative problem solving, and I enjoy solving complex technical challenges at the intersection of data modeling, distributed systems, and API design.

Hossein Arian

I am a senior backend engineer with over a decade of experience building scalable multi-tenant SaaS platforms. I led the creation of a no-code mobile app builder from greenfield to $500K in revenue, taking ownership of database architecture, API layer, authentication, and background processing to serve 150,000+ end users across 5,400+ published apps. I thrive on performance engineering, architectural decisions, and mentoring teammates to ship reliable, high-impact features. I am open to relocation to Germany/EU and excited to bring my backend expertise to ambitious products. In my roles, I partner closely with product and success teams to deliver scalable systems, maintain uptime, and drive cost efficiencies. I value clear design, robust testing, and collaborative problem solving, and I enjoy solving complex technical challenges at the intersection of data modeling, distributed systems, and API design.

Available to hire

I am a senior backend engineer with over a decade of experience building scalable multi-tenant SaaS platforms. I led the creation of a no-code mobile app builder from greenfield to $500K in revenue, taking ownership of database architecture, API layer, authentication, and background processing to serve 150,000+ end users across 5,400+ published apps. I thrive on performance engineering, architectural decisions, and mentoring teammates to ship reliable, high-impact features. I am open to relocation to Germany/EU and excited to bring my backend expertise to ambitious products.

In my roles, I partner closely with product and success teams to deliver scalable systems, maintain uptime, and drive cost efficiencies. I value clear design, robust testing, and collaborative problem solving, and I enjoy solving complex technical challenges at the intersection of data modeling, distributed systems, and API design.

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Experience Level

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Intermediate
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Language

English
Advanced
Persian
Fluent
German
Beginner

Work Experience

Senior Backend Engineer & Co-Founder at Puzzley
February 1, 2015 - Present
Architected and led a no-code SaaS mobile app builder from the ground up, onboarding 4,000+ customers and powering 5,400+ published apps for 150,000+ end users. Sustained 99.9% uptime over 10 years while continuously delivering new features, migrations, and platform-wide architectural refactors. Implemented a Redis caching strategy and targeted query optimizations that reduced API latency and improved performance.

Education

Master of Science, Software Engineering at Islamic Azad University
January 1, 2012 - January 1, 2015
Bachelor of Science, Software Engineering at Birjand University of Technology
January 1, 2008 - January 1, 2012

Qualifications

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Industry Experience

Computers & Electronics, Software & Internet, Professional Services

Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
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