Available for remote work
Full Stack Engineer · AI & Automation2026

RijviMahmud

4+ years building scalable systems, SaaS products, and LLM-powered workflows — globally.

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Profile

Full Stack Engineer with 4+ years of experience building scalable web applications across fintech, SaaS, and AI products — specialising in AI-driven workflows and automation. Experienced with n8n, Claude, and LangChain for developing LLM-powered systems, intelligent pipelines, and backend integrations. Strong foundation in architecture design, agentic coding, performance optimisation, and scalable systems.

Experience

YupsisNov 2024 – Present· 1 yr 10 mo
Rajshahi, Bangladesh.Remote
  • I worked with nextjs and react.

Projects

Alturavent
Alturavent

Project management and billing platform with Stripe — subscriptions, refunds, taxation, KPIs. Reduced management overhead by ~70%.

nextjsstripe
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Willro - Real Customer Reviews with Video & Live Experiences
Willro - Real Customer Reviews with Video & Live Experiences

A review sharing platform with the full features of social media.

nextjstanstackstate managementcomponent architecture
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Case Studies

Building a Bulletproof Billing Engine
Alturavent

Building a Bulletproof Billing Engine

How bi-directional Stripe sync eliminated reconciliation errors entirely.

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Stack

FRONTEND
React.jsNext.jsTailwind CSSShadcn UITanStackZustandReduxVite
Backend
NodeJsHonoJSNestJSSupabaseDrizzlePostgresMongoDB

Open Source

rijvi-mahmud/shaddy One stop frontend resouces. It's open-source.
★ 24TypeScript
rijvi-mahmud/use-typed-hooks use-typed-hooks is a collection of type-safe, reusable React hooks designed to simplify development and enhance functionality of React application.
★ 1TypeScript

Articles

Track Previous State in React with One Powerful HookApr 28, 2026

Tech opinions

Hono over ExpressFor edge and serverless APIs. Near-zero overhead, first-class TypeScript, runs on Cloudflare Workers and Node alike. Express is fine but Hono wins on modern infra.
n8n over custom glueFor AI orchestration where the workflow changes often. Self-hosted n8n gives you visual debugging, retry logic, and 400+ integrations without writing brittle pipeline code.
Drizzle over PrismaOnce you've hit Prisma's generated-query ceiling on complex joins, Drizzle's SQL-first approach is a breath of fresh air. Type-safe without the magic.
Structured outputs > promptingFor production LLM calls, always enforce a schema (Zod + tool-use). Free-form output is a reliability liability — structured outputs cut parsing errors to near zero.

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Let's work together