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Hi, I’m Md. Shahriar Mehdi, a Senior Full Stack Engineer with 5+ years of experience architecting high-performance SaaS platforms and AI-driven apps. I specialize in the Next.js 16 ecosystem, Node.js, and PostgreSQL optimization. I also engineer real-time systems using WebSockets and Redis, and manage complex asynchronous workflows with BullMQ. I focus on scalability, cloud infrastructure, and business process automation. As a consultant, I’ve designed 150+ full-stack applications, led multi-tenant SaaS initiatives, integrated AI models into production workflows, and collaborated with US/UK stakeholders to translate requirements into scalable architectures. My work emphasizes measurable performance gains and reliable, scalable delivery.…Hi, I’m Md. Shahriar Mehdi, a Senior Full Stack Engineer with 5+ years of experience architecting high-performance SaaS platforms and AI-driven apps. I specialize in the Next.js 16 ecosystem, Node.js, and PostgreSQL optimization. I also engineer real-time systems using WebSockets and Redis, and manage complex asynchronous workflows with BullMQ. I focus on scalability, cloud infrastructure, and business process automation. As a consultant, I’ve designed 150+ full-stack applications, led multi-tenant SaaS initiatives, integrated AI models into production workflows, and collaborated with US/UK stakeholders to translate requirements into scalable architectures. My work emphasizes measurable performance gains and reliable, scalable delivery.

MD. SHAHRIAR MEHEDI

Full Stack Developer, Web Developer, Front-End Developer, +4

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Hi, I’m Md. Shahriar Mehdi, a Senior Full Stack Engineer with 5+ years of experience architecting high-performance SaaS platforms and AI-driven apps. I specialize in the Next.js 16 ecosystem, Node.js, and PostgreSQL optimization. I also engineer real-time systems using WebSockets and Redis, and manage complex asynchronous workflows with BullMQ. I focus on scalability, cloud infrastructure, and business process automation. As a consultant, I’ve designed 150+ full-stack applications, led multi-tenant SaaS initiatives, integrated AI models into production workflows, and collaborated with US/UK stakeholders to translate requirements into scalable architectures. My work emphasizes measurable performance gains and reliable, scalable delivery.…Hi, I’m Md. Shahriar Mehdi, a Senior Full Stack Engineer with 5+ years of experience architecting high-performance SaaS platforms and AI-driven apps. I specialize in the Next.js 16 ecosystem, Node.js, and PostgreSQL optimization. I also engineer real-time systems using WebSockets and Redis, and manage complex asynchronous workflows with BullMQ. I focus on scalability, cloud infrastructure, and business process automation. As a consultant, I’ve designed 150+ full-stack applications, led multi-tenant SaaS initiatives, integrated AI models into production workflows, and collaborated with US/UK stakeholders to translate requirements into scalable architectures. My work emphasizes measurable performance gains and reliable, scalable delivery.

Available to hire

Hi, I’m Md. Shahriar Mehdi, a Senior Full Stack Engineer with 5+ years of experience architecting high-performance SaaS platforms and AI-driven apps. I specialize in the Next.js 16 ecosystem, Node.js, and PostgreSQL optimization. I also engineer real-time systems using WebSockets and Redis, and manage complex asynchronous workflows with BullMQ. I focus on scalability, cloud infrastructure, and business process automation.

As a consultant, I’ve designed 150+ full-stack applications, led multi-tenant SaaS initiatives, integrated AI models into production workflows, and collaborated with US/UK stakeholders to translate requirements into scalable architectures. My work emphasizes measurable performance gains and reliable, scalable delivery.

Skills

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Expert

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Intermediate

Work Experience

Full Stack Software Developer at Fiverr (Freelance Projects)

January 1, 2023 - Present

Delivered 150+ full-stack web applications for global clients across SaaS, e-commerce, and automation domains. Built scalable backend with Next.js, Node.js, and PostgreSQL. Implemented WebSocket-based live updates for task synchronization and integrated AI for smart task suggestions and workflow automation. Collaborated with cross-functional teams to ensure maintainable, high-performance systems.

AI Task Management & Productivity SaaS Developer at Automation Services Ltd.

January 1, 2021 - January 1, 2023

Led development of AI-powered task management and productivity SaaS applications, including Live Site AI Recruitment Management SaaS. Implemented real-time tracking and status updates, scalable back-end architecture with job queues, integrated JWT/OAuth authentication, and optimized APIs. Reduced manual recruitment effort through automated workflows.

Senior Engineering Consultant (SaaS & AI) at Fiverr / Independent Global

January 1, 2023 - Present

Architected 150+ full-stack applications, specializing in multi-tenant SaaS, automated FinTech tools, and AI-powered business intelligence dashboards. Engineered high-concurrency real-time features using WebSockets and Redis, maintaining sub-100ms latency for collaborative enterprise workspaces. Optimized PostgreSQL schemas, reducing query execution time by 45% through strategic indexing, partitioning, and multi-layer caching strategies. Integrated OpenAI/Anthropic models into production workflows, automating data extraction and predictive decision-making for international clients. Led technical discovery with US/UK stakeholders, translating requirements into scalable roadmaps and high-performance system architectures.

Full Stack Software Developer at Automation Services Ltd.

January 1, 2021 - January 1, 2023

Scaled enterprise-grade applications using React and Next.js, focusing on automating internal business processes and high-volume inventory management. Redesigned core API middleware and database interaction layers, resulting in a 35% increase in backend throughput and significantly reduced server overhead. Established modern TypeScript coding standards and conducted rigorous peer code reviews within an Agile/Scrum framework.