Building Scalable Applications & AI Automations
Hi, I'm Jalaj Goyal. With over 7 years of engineering experience, I specialize in architecting complex React/NextJS frontends, building resilient Node.js microservices, and automating data workflows with AI.
About Me
I am a results-driven Senior Full Stack Developer with 7+ years of experience architecting and delivering scalable enterprise web and mobile applications. I have deep expertise across the JavaScript stack—namely React.js, Next.js, React Native, Node.js, and TypeScript.
I am passionate about automating manual operations and integrating AI/LLM workflows (such as OpenAI API, LangChain, n8n, and Make) directly into product lifecycles. I work extensively with AWS serverless infrastructures to build robust, cloud-native deployments that scale with user demand.
Download CV (ATS)A Quick Overview
Throughout my tenure at Spineor Web Services Pvt Ltd, I have spearheaded more than 10 large-scale systems covering healthcare apps, e-commerce stores, flight booking portals, and fintech APIs. I leverage AI-assisted tools (Cursor, Copilot, Claude Code) to accelerate feature delivery by 40-50%.
Technical Expertise
Filter by category to explore my primary tools, frameworks, and databases.
Professional Journey
Senior Full Stack Developer
- Architected and shipped an 18-service microservice e-commerce platform (TAPS) on AWS with Docker and PostgreSQL, handling inventory, payments, and shipping.
- Integrated OpenAI API, LangChain, n8n, and webhook-driven automated pipelines into enterprise SaaS platforms, boosting operational efficiency by 30%.
- Adopted AI-assisted development tools (Cursor AI, Claude Code, GitHub Copilot) to accelerate team feature delivery by 40-50% using Vibe Coding methodologies.
- Established robust CI/CD pipelines via GitLab CI and CircleCI, cutting deployment times by half and improving release reliability.
- Mentored junior developers, established code review protocols, and chaired weekly sprint planning and technical architecture discussions.
Full Stack Developer
- Designed secure REST and GraphQL APIs with token-based authentication, rate limiting, and automated Swagger/Apidoc documentation.
- Built 'Market Box', a multi-domain booking marketplace integrating Elasticsearch for real-time searches, AWS Amplify, and AWS S3.
- Developed high-performance hybrid mobile features using React Native and Redux for sports and healthcare applications (ADCC, Health Jeanie).
- Created a fintech invoicing platform using Puppeteer-based automated report generators and RabbitMQ-driven document queues.
Junior Software Engineer
- Converted custom web layouts into fully responsive interfaces using React.js, Next.js, and modern CSS modules.
- Integrated third-party APIs (payment gateways, notification hooks) and optimized SQL queries, improving page speed by 25%.
- Assisted in maintaining and debugging legacy PHP/Node.js backend microservices, fixing critical security bugs and user experience issues.
Featured Projects
Click on any card to view detailed contributions, architectures, and technologies.
The Auto Parts Shop (TAPS)
An enterprise-grade, microservice-based e-commerce platform composed of 18 independent services.
Market Box
An advanced, booking-based marketplace application that allows users to create custom digital service stores.
Invoice & Accounting SaaS
A fully functional SaaS platform handling financial records, bank statements, and automated receipts.
ADCC Sports
A high-performance React Native mobile app for sports event tracking and live customer interactions.
Health Jeanie
A mobile wellness app for appointment bookings, medical records storage, and patient tracking.
Akasa Air
Optimized flight search checkout flows and analytics boards for Akasa Air's web and mobile interfaces.
AI & Workflow Automation
How I merge large language models, crawlers, and API integration layers to eliminate manual processes.
LLMs & Intelligent Agents
Experienced with implementing OpenAI and Claude model APIs. I design dynamic chatbots, write prompt flows using LangChain, build context-aware search pipelines, and structure data extractions from unstructured text documents.
No-Code Pipelines & Webhooks
Adept at building complex webhook-driven workflows using integration orchestrators like n8n, Make (Integromat), and Zapier. I connect APIs, databases, Slack channels, and email clients into automated notification grids.
Web Scraping & Processing
Experienced at designing serverless web scraping pipelines using **Puppeteer** and **Playwright**. I automate complex user interaction scripts, extract large-scale datasets, and queue document generations using **RabbitMQ**.
AI-Assisted (Vibe) Coding
Pioneer in integrating modern AI IDE tools (GitHub Copilot, Cursor AI, Claude Code) into daily coding operations, resulting in a 40%+ acceleration in sprint deliveries and clean, highly testable code syntax.
Let's Connect
Have a project in mind, want to discuss a contract role, or just say hello? Send me a message using the form below!