Swajan

Senior Full-Stack Developer & AI Engineer

Senior full-stack engineer with a design background — I bridge design and engineering, build end-to-end, and understand how businesses operate from the inside.

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About

I started as a frontend designer and grew into full-stack development over seven years. That design-first foundation means I care as much about how things look and feel as how they're built — and I can own both.

I co-founded Prottoy, an ed-tech startup in Bangladesh, where we built the platform from scratch on a shoestring. Then I spent two years at British American Tobacco in HR operations — managing payroll for 700+ employees and leading deployment of HR technology. That chapter is the unexpected twist: I understand how businesses run from the inside. Systems that don't talk to each other, data that doesn't flow — I've seen it. It's why the software I build is designed to fit real workflows, not fight them.

Today I run FredoCloud, a software agency serving clients across seven countries, and I work as a Senior Full-Stack Engineer at MyelinZ. I position myself as a product engineer for design-forward companies and as a senior full-stack and AI automation engineer for freelance and contract work.

If you're building a product that needs both craft and execution — or you need someone who can own the stack and the story — I'd like to hear from you.

Experience

  • 2025 – Present

    Co-Founder & CEO · FredoCloud

    Dubai, UAE (clients in 7 countries)

    Software agency building custom web applications, SaaS platforms, and AI-powered automation. Clients in healthcare, real estate, finance, government. Full-stack web apps, AI/LLM integrations, n8n workflow automation, SaaS MVPs.

    React · Next.js · TypeScript · Node.js · PostgreSQL · MongoDB · OpenAI · LangChain · n8n

  • Jun 2024 – Present

    Senior Full Stack Engineer · MyelinZ

    Remote (part-time)

    Leads end-to-end architecture for enterprise client projects — system design, database schemas, deployment, performance. Mentors junior developers. CI/CD and development standards. Runs parallel to FredoCloud; the two roles sharpen each other.

    React · Next.js · TypeScript · Node.js · PostgreSQL · MongoDB

  • Jun 2023 – Jan 2025

    Project Deployment Lead, HR · British American Tobacco

    Dhaka, Bangladesh

    Led deployment of HR technology across the organization. Implementation timelines, stakeholder alignment, change management for 700+ employees. Salary variance reporting to senior management. Reward programs (HonorClub), international attachments, cross-border payroll. SOx-compliant record keeping. Key insight: even well-funded orgs struggle when systems don’t talk — this drives every product at FredoCloud.

  • Jan 2023 – Jun 2023

    MIS & Payroll Officer, HR · British American Tobacco

    Dhaka, Bangladesh

    Managed monthly payroll for 700+ management employees. Headcount reconciliation, overtime, back-pay, timely disbursement. Enterprise-scale operations where accuracy isn’t optional — real people’s livelihoods depend on the system.

  • Jun 2021 – Nov 2022

    Lead IT & MIS Specialist · Shubhankar Consulting

    Dhaka, Bangladesh

    First leadership role in tech. Owned the entire technology function — built their website, managed mail server infrastructure, and guided digital strategy. Scrappy, hands-on.

  • Feb 2020 – May 2024

    Full Stack Engineer → Senior Full Stack Engineer · MyelinZ

    Remote

    Joined frontend-focused and grew into backend architecture, database design, APIs, and DevOps. Built full-stack apps for enterprise clients. Integrated payments and auth. Drove 40%+ improvements in performance and Core Web Vitals. Transitioned legacy codebases to modern stacks (React hooks, TypeScript).

    React · Next.js · TypeScript · Node.js · PostgreSQL · MySQL

  • Aug 2020 – May 2022

    Software Engineer & Co-Founder · Prottoy

    Dhaka, Bangladesh

    Co-founded an ed-tech startup closing the education gap between urban and rural students. Built the core platform from scratch: interactive learning tools, live chat, student management, sales CRM. Small team, almost no budget — the origin of the entrepreneurial mindset that drives everything since.

    React · Node.js · Full-stack web

  • 2018–2020

    Frontend Designer · The Beginning

    Started in web design and frontend development — HTML, CSS, JavaScript, then React. This design-first foundation is a core part of who I am as an engineer today.

Skills & Stack

  • React
  • Next.js
  • TypeScript
  • Node.js
  • PostgreSQL
  • MongoDB
  • REST APIs
  • OpenAI
  • LangChain
  • n8n
  • LLM integrations
  • SaaS architecture
  • Full-stack web development

Projects & Work

  • Drip Squad — project screenshot

    Drip Squad

    Modern plumbing services site with booking, testimonials, and 99 PageSpeed — dark blue/teal brand.

    Next.jsReactSCSSNode.js
    View site →
  • Ensculp — project screenshot

    Ensculp

    Premium interior design studio site — portfolio gallery, Indian-inspired aesthetic, minimalist layout.

    Next.jsReactSCSSNode.js
    View site →
  • ChatGo — project screenshot

    ChatGo

    AI-powered chatbot platform — 3.03ms load time, futuristic UI, edge computing for AI queries.

    Next.jsTailwind CSSSCSSNode.js
  • MyelinZ — project screenshot

    MyelinZ

    Neurotechnology company site — unified product platform, 0.3ms load, dark UI with electric blue.

    Next.jsReactTailwind CSSNode.js
  • Yi3 — project screenshot

    Yi3

    Youth innovation initiative — leadership and entrepreneurship programs, registration, impact stats.

    ReactSCSSNode.jsExpress.js
    View site →
  • Premier Renovations

    Premier Renovations

    Home renovation services — responsive site, service showcase, and lead capture.

    Next.jsReactSCSSNode.js
    View site →
  • Interior Elegance

    Interior Elegance

    Interior design and home services — portfolio and inquiry flow.

    Next.jsReactSCSSNode.js
    View site →
  • Dubai Luxury

    Dubai Luxury

    Luxury wedding and events in Dubai — high-end aesthetic and booking.

    Next.jsReactSCSSNode.js
    View site →
  • YogaWell

    YogaWell

    Yoga and wellness coaching — clean, calming presence and scheduling.

    Next.jsReactSCSSNode.js
    View site →
  • Nutriora

    Nutriora

    Nutrition and wellness app — personalized plans, AI insights, 10K+ users, 95% success rate.

    React NativeNext.jsNode.jsFirebase
    View site →
  • Ember Consulting Group

    Ember Consulting Group

    Consulting and strategy — professional site and contact flow.

    Next.jsReactNode.js
    View site →

Services

  • Custom Web Apps & SaaS

    Full-stack web applications and SaaS platforms built for scale — from MVP to production. React, Next.js, TypeScript, Node.js, PostgreSQL, MongoDB.

  • AI & LLM Integrations

    OpenAI, LangChain, and custom LLM integrations. Chatbots, automation, and AI-powered features that fit your product and workflows.

  • Workflow Automation

    n8n and custom automation — connect your tools, streamline operations, and reduce manual work without fragile scripts.

Contact

For freelance, contract, or product work — book a discovery call or reach out via email or LinkedIn.

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