Solution architecture, full stack delivery, and AI / GenAI engineering.
I’m Gobi Krishnan Arunachalam, a Technical Architect and AI Engineer connecting system design with hands-on delivery.
I bring 14+ years of experience delivering web, mobile, and enterprise applications across SaaS, ecommerce, insurance, and healthcare. My work spans requirements, high-level and low-level designs, React.js, Node.js, Python and Go development, Agile delivery, and production support.
Web, mobile & enterprise applications
Architecture, quality & delivery at UNS
AI-enabled products developed at UNS
I lead a team of 15 engineers in the architecture and development of 8 AI-enabled products, 7 of which have been shipped to production. My work spans UI/UX, APIs, databases, authentication, cloud deployment, and engineering quality.
My AI experience includes building a private-document chatbot using Retrieval-Augmented Generation (RAG), Google Agent Development Kit (ADK), and the Agent2Agent (A2A) protocol. I integrate specialized agents, document ingestion, embeddings, and vector search with a React.js chat interface.
Generative AI · LLM integration · Multi-agent systems · RAG
Prompt engineering · Embeddings · Vector search
Google ADK · A2A protocol
Claude Code · Cursor · OpenAI Codex
React.js · React Native · JavaScript (ES6+) · TypeScript
Redux · Redux-Saga · RxJS
Python · Go (Golang) · Gin · Node.js · Express.js · GraphQL · REST APIs
PostgreSQL · MongoDB · MySQL
Solution architecture · System design · HLD / LLD
Micro frontends · Module Federation
HTML5 · CSS3 · Tailwind CSS · Material UI · Bootstrap
Responsive design · WCAG accessibility
AWS · Firebase · CI/CD · Jenkins
Git · GitHub · Bitbucket · SVN
Playwright · End-to-end testing · Jest · Jasmine · Karma
React Testing Library · Unit testing · TDD
Agile · Scrum · Jira · Sprint planning
Stakeholder management · Code review
Leading engineering teams, delivering enterprise applications, and bringing AI products to production.
Lead a team of 10 engineers in the architecture and development of 8 AI-enabled software products, covering UI/UX, APIs, databases, authentication, and cloud deployment.
Shipped 7 products to production, translating business requirements into scalable technical solutions and driving delivery from requirement analysis through production support.
Guide responsive, accessible UI/UX, review code, and support engineers on architecture and quality standards. Resolve production issues and coordinate testing, deployment, and releases.
Delivered 12 projects for 13 clients, building full stack applications with React.js, Node.js, and REST APIs integrated with databases and authentication.
Created high-level and low-level designs (HLD / LLD), established reusable UI components, and delivered workflows for SaaS, subscriptions, point-of-sale, and shop-management platforms.
Coordinated Agile delivery and sprint planning with stakeholders, managing CI/CD, testing, and deployment. Optimized API performance and resolved microservice and production issues.
Architected 20+ micro frontend modules using React.js, Redux, Node.js, and MongoDB, enabling independent deployment and reducing coordination overhead between teams.
Established shared components, coding standards, and integration practices. Delivered modular features with product, design, and engineering teams, with a focus on performance and maintainability.
Managed version control and continuous integration using Git, Jenkins, and Bitbucket.
Directed B2C and B2B insurance product development using React.js, Redux, and Node.js.
Built accessible interfaces that simplified complex insurance workflows for end users.
Delivered client interfaces using React.js, Redux, and Bootstrap with responsive design.
Implemented unit tests and accessibility standards across interfaces with consistent UI/UX.
Developed web and mobile interfaces with JavaScript, jQuery Mobile, PhoneGap, Ionic, HTML, and CSS, integrating backend services for client applications.
Built web and mobile features from stakeholder requirements using Node.js, Drupal, WordPress, and PHP.
A closer look at multi-agent AI, restaurant SaaS, multi-brand commerce, and healthcare.
A restaurant platform serving 20+ outlets and handling 400+ orders per month, with app-less QR ordering, digital payments, real-time kitchen tickets, and unified billing. Critical workflows are covered by 100+ Playwright E2E tests.
Document-grounded answers through specialized agents, embeddings, and vector search, with a React.js chat interface.
Web, iOS, and Android commerce, with a React Native white-label framework that launched mobile apps for 4 Alshaya brands across 4 countries.
A MERN hospital application connecting patient tracking, appointments, document digitization, and analytics across web and mobile.
Architecture that connects the whole application.Explore AI engineering
Multi-agent systems and retrieval-augmented generation for private documents.
I built a chatbot that answers questions from private document datasets using retrieval-augmented generation. Specialized agents built with Google ADK collaborate over the A2A protocol, connecting document retrieval with LLM responses through a React.js chat interface.
Private-document RAG workflow
I designed a multi-agent architecture using Google Agent Development Kit (ADK), with specialized agents collaborating through the Agent2Agent (A2A) protocol. Document ingestion, embeddings, and vector search supply relevant context for document-grounded answers.
My AI toolkit includes LLM integration, prompt engineering, RAG, embeddings, and vector search. I use Claude Code, Cursor, and OpenAI Codex alongside code review, automated tests, version control, and CI/CD practices.
At UNS Artificial Intelligence, I lead 10 engineers developing 8 AI-enabled products, with 7 shipped to production. My role connects responsive, accessible UI/UX with APIs, databases, authentication, cloud deployment, and production support.
Architecture, engineering leadership, and full-stack delivery.
Have an opportunity in technical architecture, full-stack development, or AI engineering? I’d welcome a conversation about your team and the problems you’re solving.