Full Stack Developer

MERN Stack • Next.js • AI Chatbots • Scalable Architectures

9+ years of experience in building scalable web apps, leading teams, and delivering cloud-based and AI-powered solutions.

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Basant Kumar - Senior Full Stack DeveloperDev

About Me

I'm a Senior Full Stack Developer and Tech Lead with over 9 years of experience in designing and building modern web applications. I specialize in the MERN stack, Next.js, NestJS, and cloud deployment on AWS, with hands-on expertise in AI chatbots, microservices, and enterprise integrations.

I've led high-performing teams, optimized large-scale systems, and built solutions integrated with platforms like Salesforce, LMSs, and ITSM tools. I'm passionate about clean architecture, performance optimization, and leveraging AI to solve real-world problems. Currently, I'm focused on building scalable, secure, and intelligent applications for remote-first teams.

I thrive on staying at the forefront of technology, continuously learning, and delivering impactful solutions that drive business success. My goal is to empower teams and clients with robust, future-ready digital products.

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Services I Provide

From scalable web apps to intelligent automation, I offer full-cycle development services tailored for modern businesses.

Full Stack Web Development

End-to-end development using React, Node.js, Next.js, and MongoDB, focused on building fast, scalable, and user-centric applications with clean architecture and optimized performance.

AI Chatbots & Automation

Custom AI-powered chatbots and voicebots using Dialogflow, LLMs, Twilio, and RAG pipelines to enhance user engagement, automate workflows, and reduce manual effort.

Cloud Deployment & DevOps

Reliable and secure cloud deployment using AWS, Docker, Nginx, and CI/CD pipelines (GitHub Actions) for seamless releases and scalable infrastructure.

Enterprise API Integrations

Seamless integration with Salesforce, Workday, ITSM tools, and LMS platforms, enabling unified systems and smooth data flow across business applications.

MY SKILLS
Frontend
ReactNextJSJavaScriptTypeScriptHTMLCSSTailwindMaterialUI
Backend
NodeJSExpressNestJSFastAPIPHPPythonGraphQLKafkaRESTMongoDBMySQLRedisElasticsearch
Tools & Others
DockerAWSNginxCI/CDGitHubActionsDialogflowTwilioOAuthSSOJiraSalesforceWorkdayLMSITSMOpenSearchRAGLLM

Experience

Technical Lead & Senior Full Stack Developer

2024 – Present
BlackBeltHelp

Spearheaded the development of AI-powered Chatbots and VoiceBots using Dialogflow, Twilio, and Generative AI. Led a team in delivering enterprise integrations and optimizing scalable APIs using Node.js, MongoDB, Redis, and Elasticsearch.

  • Improved API response time by 40%
  • Reduced manual data processing by 50%
  • Managed AWS deployments using Docker Swarm & CI/CD pipelines

🧠 Senior Full Stack Developer

2021 – 2024
BlackBeltHelp

Built and maintained the OneStop student helpdesk platform with React and Node.js. Designed integrations with Salesforce, Banner, and other SIS systems. Enhanced backend chatbot logic using microservices and cloud tools.

  • Improved application load time
  • Integrated MFA & secure authentication flows
  • Trained and mentored new developers

💻 Senior Software Engineer

2020 – 2021
BigStep Technologies

Developed real-time apps for video calling and live chat using WebRTC (Agora SDK). Focused on frontend optimization and backend API performance with Node.js, MongoDB, and PHP.

  • Built highly responsive UI with React
  • Created test suites using Jest & Enzyme
  • Mentored junior team members

💻 Software Engineer

2016 – 2020
BigStep Technologies

Worked on SocialEngine PHP CMS plugins and full-stack retainership projects. Delivered client-requested features, built payment gateway integrations, and led plugin deployments.

  • Created custom plugins for Crowdfunding, Contests, Currency Switching
  • Integrated PayPal, Stripe, Mollie, and PhonePe
  • Trained junior developers in PHP and JS frameworks

Featured Projects

Here are some of my recent projects that showcase my expertise in full-stack development

AI Chatbot & VoiceBot Platform - Project Screenshot
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AI Chatbot & VoiceBot Platform

AI-powered chatbot and voice assistant system built with Dialogflow and LLMs, integrated into enterprise helpdesk workflows. Included backend with Node.js, real-time messaging with Twilio, and enterprise integrations with Salesforce and LMS systems. Deployed using Docker and AWS with CI/CD pipelines.

Node.jsDialogflowTwilioMongoDBDocker
OneStop Student Helpdesk System - Project Screenshot
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OneStop Student Helpdesk System

Unified full-stack helpdesk platform used by universities. Developed with React frontend and Node.js backend, integrated multiple ticketing and SIS systems like Banner, TeamDynamix, and TopDesk. Focused on performance, authentication, and user experience.

ReactNode.jsMongoDBDockerNginx
Live Streaming & Chat Application - Project Screenshot
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Live Streaming & Chat Application

Real-time communication platform with live video calling, chat, and streaming features using Agora SDK and WebRTC. Frontend built with React, backend with Node.js and MongoDB. Ensured seamless performance and responsive UI.

ReactNode.jsWebRTCMongoDBAgora SDK

Get In Touch

Ready to work together? I'd love to hear about your project and discuss how we can bring your ideas to life.

Let's Connect

kumarbasant229@gmail.com
+91 8107968482
India
Connect with me:
Available For:
Full-time RolesFreelance ProjectsConsulting

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