Software Engineer

I architect
end-to-end
solutions.

Hi, I'm Vishawjeet Sidhu. I transform complex problems into elegant mobile apps and cloud-native web platforms.

Work
Experience.

My professional journey in building scalable applications and solving complex engineering problems.

Instep Technologies

05/2025 - Present

Full Stack Intern

Developed Egypt based client project modules using Flutter, Next.js, and Express.js, ensuring seamless integration between frontend and backend.

Implemented caching strategies that improved API response time by ~40% and enhanced overall app performance.
Optimized application workflows, reducing app loading time by ~50% and improving user experience.
Designed and managed a cloud-native notification architecture using AWS Lambda, EventBridge, EC2, SQS, and Firebase.
Applied agentic AI workflows to design and automate module development, cutting manual effort by 25%.

Technical
Expertise.

My stack is pragmatic and adaptable. I prioritize tools that offer type safety, scalability, and excellent developer experience.

Frontend Development

ReactReact NativeNext.jsTypeScriptTailwind CSSReduxZustandshadcn

Backend Development

Node.jsExpressMongoDBPostgreSQLPrismaREST APIsWebSocketsVector DB

Tools & Technologies

GitDockerAWSVercelLangChain

Selected
Projects.

Solving real problems with agentic workflows, complex database architectures, and scalable frontend systems.

Navigation

Scroll down to explore the case studies.

2025Full-Stack Architecture

PrepWAI

AI-powered platform offering real-time technical mock interviews using dynamic, context-aware agentic workflows.

Key Features

AI-tailored interviews based on job description
Real-time interview simulation with WebSockets
Retrieval-Augmented Generation using Pinecone
Instant feedback, performance analytics, and evaluation
Token-based credit system with Razorpay integration
Hybrid database architecture (PostgreSQL + MongoDB)

#Next.js#Express#WebSockets#Prisma#PostgreSQL#MongoDB#Auth.js#Razorpay#Pinecone#ShadCN#Tailwind CSS#Gemini SDK

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2024Full-Stack Developer

EduClinic

A platform connecting students, alumni, industries, and institutions for jobs, mentorship, events, and collaboration.

Key Features

Role-based dashboards for students, alumni, and industries
Job boards, event management, and engagement tracking
Industry dashboard to post jobs, courses, and browse profiles
Real-time discussions and community spaces with Pusher
Rich user profiles with projects, skills, and qualifications
Admin panel for college approval and user management

#Next.js#Tailwind CSS#Zustand#MongoDB#Pusher#Auth.js#Cloudinary#ShadCN#Vercel

View Case Study Live Demo

2025Mobile & AI Logic

Psychiatrist Assist AI

Mental wellness app helping psychiatrists monitor and assist patients remotely via real-time tracking and AI insights.

Key Features

Mood and sleep monitoring with trend analysis
Task tracking system for behavioral activation
Weekly assessment tests
Personal AI assistant (Agentic Workflows)
Doctor dashboard with patient risk analytics

#React Native#Express.js#MongoDB#LLM#Agentic Workflows

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Latest Writing

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November 20, 2025

Building a Scalable Multi-Channel Notification System on AWS

Architecting a fault-tolerant, event-driven notification pipeline using AWS Lambda, SQS, and EventBridge to handle millions of triggers for a global client.

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March 22, 2025

Behind the Architecture of PrepWAI: Designing an End-to-End AI Interview Platform

How I built a fully automated interview pipeline using Dual Agent architecture, Vector Search, and a multi-database strategy to simulate real-world technical interviews.

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March 9, 2025

BFCET Hack 2.0: A 36-Hour Journey to 2nd Place

Over two unforgettable days, my team 4FIVE6 clinched 2nd place in a 36-hour hackathon, building a mental wellness app that combines agentic workflows and sentiment analysis.

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February 2, 2025

Psychiatrist Assist AI: A Mental Wellness Companion

A mobile application designed to bridge the gap between psychiatrists and patients, offering remote mental health support through advanced AI technology.

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