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Rahi User

@rahiuser

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Full Stack Developer at Headless Technologies LTD; improved order processing by 30% for a restaurant POS platform.

Bangladesh

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At Headless Technologies LTD, I developed and maintained six core modules for a cloud-based restaurant POS platform used by active restaurant branches. I integrated delivery and payment APIs, reducing order processing time by 30%, and resolved a race condition in order synchronization between branches.

At SM Technology, I built full-stack services and delivered four production systems, including e-commerce, booking, tournament, and B2B platforms. I integrated payment and real-time features, and improved API response time by 35% through refactoring.

Experience

Work history, roles, and key accomplishments

Jr. Software Developer

Headless Technologies LTD

Sep 2025 - Jun 2026 (9 months)

Developed and maintained 6 core modules for a cloud-based restaurant POS platform used by 50-100+ active branches. Integrated third-party delivery and payment APIs, reducing order processing time by 30% and improving real-time analytics response time.

MERN Stack MongoDB ExpressJS React NodeJS RESTful API Design Third Party Integrations Payment Gateway Integration Real Time Systems

Full Stack Developer

SM Technology

Dec 2024 - Aug 2025 (8 months)

Built full-stack services using Node.js, Express, TypeScript, MongoDB, and Prisma; delivered 4 production systems including e-commerce, booking, tournament, and B2B platforms. Integrated Stripe payments, real-time chat, Google Calendar API, Zoom SDK, and Smoobu API; deployed on DigitalOcean/Hostinger using PM2 and NGINX.