About me

Full Stack MERN Developer with 4+ years of experience building scalable web applications across booking platforms, gaming systems, and e-commerce products. Proficient in React.js, Next.js, Node.js, TypeScript, PostgreSQL, MongoDB, Docker, and AWS — consistently delivering 30–80% improvements in API performance, system reliability, and application efficiency.

I am experienced in developing AI-powered chatbots and automation workflows using OpenAI API, n8n, and Make.com. I design scalable backend architecture to handle high concurrent requests, integrating AI workflows with no-code tools like Bubble.io and LangChain for rapid multi-step pipelines.

My expertise covers backend architectures, RESTful APIs, and high-performance systems. I resolve critical bottlenecks through end-to-end debugging and work in collaborative Agile/Scrum environments. I am poised to continue driving innovation and operational excellence in full-stack and backend roles.

What I do

  • Backend icon

    Backend, APIs & Microservices

    Design and develop RESTful APIs and microservices using Node.js, Express, and NestJS. Built scalable middleware and rule-based pricing engines with optimized queries on PostgreSQL and MongoDB.

  • Full-stack icon

    Full-Stack Development

    Build end-to-end features with React, Next.js, Redux Toolkit, and TypeScript. Improve frontend performance and rendering with efficient state management and responsive UI components.

  • Cloud icon

    Cloud, AI & Automation

    Deploy with AWS and Docker. Develop AI agents and automated workflows using n8n, Make.com, LangChain, and OpenAI API-powered chatbots.

Daniel lewis
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Daniel lewis

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Resume

Experience

  1. Software Developer

    Eminence Technology | Mohali, Punjab | Nov 2022 – Present

    • Delivered end-to-end features for high-volume booking platforms using React.js and Node.js microservices, managing complete feature lifecycles from UI to backend.
    • Architected a rule-based pricing engine to automate supplier logic, reducing manual intervention by 50% and improving pricing accuracy.
    • Improved application response time by 30–40% by optimizing frontend data fetching and backend middleware performance.
    • Integrated third-party APIs with robust error handling and optimized MongoDB queries/indexing, reducing booking failures by 20% and enabling real-time data rendering.

  2. Web Developer

    BriskLogic | Mohali, Punjab | Sept 2021 – Nov 2022

    • Improved frontend performance by 30–35% through React rendering optimization and efficient state management strategies.
    • Increased REST API efficiency by 25% for data-heavy endpoints using MongoDB query optimization, indexing, and response compression middleware.
    • Resolved critical bottlenecks through end-to-end debugging across the MERN stack using Chrome DevTools and Node Inspector, improving application stability by 25%.
    • Collaborated in Agile/Scrum workflows using Jira to deliver high-quality code.

Education

  1. Bachelor of Computer Applications (BCA)

    Lovely Professional University

    Comprehensive coursework in programming, database management, and software development. Gained practical experience through academic projects and labs. Developed problem-solving skills through coding practice and team projects.

  2. Diploma in Electronics and Communication

    Pusa Institute of Technology

    Studied core electronics concepts including circuit design, communication systems, and embedded technology. Applied knowledge through hands-on lab work and workshops. Developed technical skills in hardware troubleshooting and system implementation.

Certifications & Awards

  • Certified in Internet of Things (IoT)

    NSIC, Delhi

  • Best Team Leader

    Bharat Scouts and Guides

  • Team Management & Leadership

    Recognized for effective team management and leadership during academic tenure.

Languages

  • English

    Professional Working Proficiency

  • Hindi

    Native Proficiency

  • Maithili

    Native Proficiency

Skills

  • Frontend
  • React.js / Next.js / TypeScript / Redux Toolkit / HTML5 / CSS3
    90%
  • Backend
  • Node.js / Express.js / NestJS / GraphQL / RESTful APIs
    90%
  • Databases
  • PostgreSQL / MongoDB / MariaDB / DynamoDB / Redis
    85%
  • Cloud & Automation
  • AWS / Docker / CI/CD / n8n / Make.com / OpenAI API / LangChain
    85%

Portfolio

  • TMP Booking Platform

    TMP - Booking Management Platform

    Enterprise · MERN Stack

    Role: Middleware / Backend Developer
    Scalable middleware and business-rule engine for real-time pricing and availability. Chunk-based data fetching, pagination, third-party API integration with error handling and retry logic, and secure data flow.

  • NEXUS Gaming Platform

    NEXUS - Gaming Contract Exchange Platform

    Gaming SaaS | MERN Stack

    Role: Full Stack Developer
    End-to-end React and Node.js platform for contract and file exchange. RESTful APIs, auth, RBAC, ~30% system performance improvement, and optimized file handling.

  • DBPS Casting Platform

    DBPS - Casting Management Platform

    Entertainment SaaS | MERN Stack

    Role: Backend Developer
    Backend services and APIs for talent and casting workflows. JWT auth, RBAC, MongoDB optimization (25–30% API improvement), and production support.

  • The Nest Genie

    The Nest Genie - Multi-Vendor E-Commerce Platform

    E-Commerce Marketplace | MERN Stack

    Role: Frontend Developer
    Seller, buyer, and admin panels with React and Redux. Reusable components (~30% less duplicate code), 35–40% faster page load, mobile-responsive and cross-browser.

Blog

I write about MERN stack, backend development, and full-stack engineering on Dev.to. Read my articles below.

Contact

Get in Touch

I'm interested in AI agents, backend system design, microservices, scalable product development, and roles where I can own APIs and services. Open to product companies, service teams, and international opportunities. Reach out for collaboration or to discuss how I can contribute to your stack.

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