What I Build
Click any capability card to pop up the domain module and explore all projects built in that engineering domain.
Backend & Event-Driven Systems
APIs, async pipelines, authentication & relational data modeling.
Building horizontally scalable REST services in Spring Boot and Express. Decoupling latency-critical write flows using Apache Kafka event streams to reduce HTTP redirect latency by 58%. Implementing stateless JWT authentication and normalized PostgreSQL schemas.
AI & Semantic Information Retrieval
Vector databases, LLM embedding pipelines & monorepo architecture.
Constructing high-precision vector search platforms over Qdrant index using Gemini AI embeddings. Structured within TurboRepo monorepos for type-safe document ingestion pipelines achieving over 95% text precision and 85% image precision.
Mobile & Cross-Platform Engineering
Flutter UI widgets, native Android Kotlin & Firebase backends.
Engineering responsive cross-platform applications in Flutter and native Android (Kotlin). Focused on accessible user experiences (Google Solution Challenge ReaderPro), local SQLite/Room caching, and clean architecture state management.
Full-Stack & Developer Tools
Canvas rendering engines, TypeScript tooling & knowledge platforms.
Developing interactive web applications, high-performance HTML5 Canvas drawing engines (60FPS path rendering), knowledge organization platforms (Second Brain), and TypeScript CLI source code scanners.
Featured Projects
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URL Manager & Analytics Platform
Horizontally scalable URL shortener with Apache Kafka event-driven analytics pipeline.
High-throughput URL shortener service engineered with a layered Spring Boot architecture, stateless JWT authentication, and an asynchronous Kafka analytics pipeline reducing redirect latency by 58%.
Semantic Search Engine
AI-powered vector embedding retrieval platform over Qdrant index using Gemini AI.
High-precision semantic search engine built as a TurboRepo monorepo. Generates high-dimensional vector embeddings via Gemini AI and executes cosine-similarity vector queries over a Qdrant index with >95% precision.
Second Brain Knowledge System
Full-stack personal knowledge management platform with modular REST APIs.
Full-stack knowledge organization platform designed for capturing, linking, and querying structured notes and web resources with secure cloud persistence and modular Express backend.
ReaderPro — Assistive Platform
Google Solution Challenge hackathon project empowering accessible content reading.
Cross-platform mobile application developed for the Google Solution Challenge to enhance reading accessibility for visually impaired and neurodivergent individuals through intelligent text processing.
Mobile Finance Tracker
Personal expense tracking & financial analytics application in Flutter.
Cross-platform Flutter application providing transaction tracking, budget management, visual spend analytics, and automated expense categorization.
Interactive Draw App
High-performance interactive vector drawing canvas built with TypeScript.
Interactive web drawing application featuring vector brush rendering, custom shape tools, layer management, and event-driven canvas manipulation in pure TypeScript.
Technologies & System Application Map
Click any technology to inspect the exact projects and system components where Karthick implemented it.
Java
Object-oriented language used for enterprise backend services, multithreading, and Spring Boot microservices.
Layered Spring Boot REST API & Kafka consumer
Have something worth building?
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Available for Software Engineering roles, backend microservice projects, distributed systems research, and full-stack/mobile application development.