
Kaustav Bhattacharjee
Software Engineer
Welcome to my personal website! I'm an experienced Engineer with a knack for building user-friendly and high-performance web applications.
Feel free to reach out to me on the following links!
Or, check out my Resume if you're interested.
Work Experience
- Clarifai
Frontend Engineer
Jan 2022 - PresentTallinn, EstoniaFull-Time
- Led frontend development of the Organizations feature from concept to production for Enterprise clients.
- Collaborated with Designers and Product Manager to simplify and monitor the user onboarding journey, achieving a 50% reduction in the time it takes for new users to get started.
- Implemented significant frontend performance optimizations, reducing shared bundle size by 10% and noticeably improving page load time, especially for data-intensive views.
- Architected a resilient frontend with a multi-level Error Boundary architecture to prevent NextJS full-page crashes, significantly improving application stability.
- Mentored new Frontend engineers on core tech stack, product architecture, and testing strategies, facilitating their technical onboarding.
- Amici Labs Inc.
Full-Stack Developer
May 2021 - Dec 2021RemotePart-Time
- Developed a back-office dashboard providing comprehensive user analytics, activity tracking, and detailed user information for internal use.
- Re-architected the data model for the platform's chat feature and implemented client-side caching, yielding a 90%+ reduction in load time of chat messages history and significantly improving chat responsiveness.
- Sniffy Labs Inc.
Software Engineer
Aug 2021 - Dec 2021RemotePart-Time
- Developed UI components for a customizable daily dog training curriculum, encompassing progress tracking, reminder notifications, and expert consultation scheduling.
- Integrated social logins via SSO for iOS and Android platforms.
- AIMonk Labs
Associate Machine Learning Engineer
Apr 2020 - Jul 2020RemoteInternship
- Optimized ML models for deployment, achieving up to a 50% reduction in code size and model weights while maintaining model accuracy, leading to a reduction in AWS costs.
- Managed deployment of over 10 open-sourced CV and NLP models on AWS, integrated with the company's AI data annotation platform, neuralmarker.ai.
Fun Projects

FollowMe
A link sharing service similar to Linktree, for sharing social media links and custom links. Includes dashboard to edit link page and also provides link analytics.
#TypeScript, #Chakra UI, #NextJS, #Redis, #PostgreSQL

DropNext
A simple drive storage for people who want more control over their online stored files and folders.
#GatsbyJS, #ReactJS, #Material UI, #Firebase

Save2QR
Browser extension and mobile app enabling cross-device transfer of multiple browser tabs via animated QR codes, featuring one-click window export/import and mobile-side QR history.
#ReactJS, #React Native, #Expo, #Chrome API, #Animated QR Codes
Roster
Kanban web app for collaborative task organization with Trello-like features and JWT-secured REST API, including autocomplete member search.
#ReactJS, #NodeJS, #Ant Design, #JWT Auth, #MongoDB Atlas

CakeBot
Cake ordering software with a chat interface for placing orders and receiving invoices, including a Windows installer.
#C++, #Python, #Qt Creator, #Gmail API
Image Captioning
A deep-learning model made using Keras framework and trained on Flickr8k dataset, which can predict a suitable caption for a given image.
#Python, #TensorFlow, #Keras