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Hasnat Babur

@hasnatbabur

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Senior backend engineer specializing in scalable systems, API design, and high-throughput production platforms.

Bangladesh

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What I'm looking for

I seek backend-focused roles emphasizing system architecture, API design, scalable production systems, and opportunities to reduce operational toil in remote-friendly teams.

I am a senior backend engineer with 10+ years of experience designing and delivering production systems from initial architecture to scale. I have led backend development as a solo engineer and as a lead on cross-functional teams across social marketplaces, enterprise inventory systems, and real-time messaging platforms.

Most recently I built centralized inventory and order management systems supporting multi-warehouse operations and designed real-time chat and messaging systems that handled thousands of concurrent connections, improving engagement and throughput significantly. I focus on API-first design, system architecture, query optimization, caching, and automation to improve performance and reduce manual work.

I am remote-friendly and thrive on backend-focused fullstack roles emphasizing server-side complexity, system architecture, and reliable, maintainable code that supports high scale and operational efficiency.

Experience

Work history, roles, and key accomplishments

Current

Senior Backend Engineer

Current

Techfox FZE

Mar 2025 - Present (10 months)

Built a centralized inventory and order management system supporting 10,000+ SKUs and 50+ partner accounts, increasing order processing throughput 3x and reducing manual billing effort by 60%. Optimized queries and caching to reduce inventory report generation time from 45s to under 3s and cut inventory defects by 85% via centralized safety-stock services.

Laravel PostgreSQL Redis CI CD Inventory Management Real Time Systems Query Optimization

Senior Backend Engineer

WatchCrunch LLC

Dec 2019 - Dec 2024 (5 years)

Architected and developed the backend for a social platform scaling to 150,000+ users and 2M+ monthly API requests; implemented real-time chat supporting 5,000+ concurrent connections and increased user engagement by 40%. Built an ad platform producing recurring revenue and automated moderation workflows that reduced manual moderation by 80%.