Kaustav Bhattacharjee

Frontend Engineer

Tallinn, Harjumaa, Estonia4 yrs 5 mos experience

Highly Stable

Key Highlights

Led initiatives reducing onboarding time by 50%.
Architected resilient UI patterns preventing cascading failures.
Mentored new engineers, enhancing team capabilities.

Stackforce AI infers this person is a Frontend-focused engineer in the SaaS industry with strong full-stack capabilities.

Contact

Skills

Core Skills

Frontend DevelopmentReact.jsFull-stack DevelopmentMachine Learning

Other Skills

AWS DeploymentAWS LambdaAlgorithmsAmplitudeBack-office Dashboard DevelopmentC++Cascading Style Sheets (CSS)Data Model Re-architectureData StructuresError BoundaryExpress.jsFirebaseFrontend PerformanceGatsbyJSGraphQL

About

Experienced Frontend Engineer with a knack for building user-friendly and high-performance web applications. I'm a team player who enjoys collaborating with designers, product folks, and other engineers to deliver impactful results. I'm comfortable leading projects, driving initiatives, and making sure we're all working together to achieve our goals. Always happy to expand my network and explore new possibilities. Connect with me or send me a message if you'd like to chat!

Experience

4 yrs 5 mos

Total Experience

4 yrs 5 mos

Average Tenure

4 yrs 5 mos

Current Experience

Clarifai

Frontend Engineer

Jan 2022 – Present · 4 yrs 5 mos · Tallinn, Harjumaa, Estonia · On-site

Co-developed the Playground UI, integrating LLM streaming capabilities via the NextJS BFF layer. Implemented the end-to-end logic for role-based feature gating and billing triggers, while instrumenting granular Amplitude analytics to measure feature adoption.
Led a cross-team initiative with Product and Design to simplify and re-engineer the user onboarding journey, achieving a 50% reduction in user onboarding time and driving a steep increase in new user signups.
Designed the frontend architecture for the Enterprise Organizations feature, implementing a client-side RBAC driven pattern that dynamically gates routes and renders UI components based on user permissions.
Architected a multi-level Error Boundary strategy that prevents cascading NextJS failures. Established resilient UI patterns that degrade gracefully during backend outages or runtime errors, significantly reducing downtime perception.
Drove frontend performance strategy to visibly improve page load time for data-intensive views, and code-splitting to reduce shared bundle size by 10%.
Mentored new Frontend engineers on core tech stack, product architecture, and testing strategies, facilitating their technical onboarding.

Next.jsAmplitudeRBACError BoundaryFrontend PerformanceFrontend Development+1

Sniffy labs

Software Engineer

Aug 2021 – Dec 2021 · 4 mos · Remote

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.

UI DevelopmentSSO IntegrationFrontend Development

Amici

Full-stack Developer

May 2021 – Dec 2021 · 7 mos · Remote

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, significantly improving chat responsiveness.

Back-office Dashboard DevelopmentData Model Re-architectureFull-Stack Development

Aimonk labs private ltd

Associate Machine Learning Engineer

Apr 2020 – Jul 2020 · 3 mos · Remote

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.

ML Model OptimizationAWS DeploymentMachine Learning