Sujay Biswas profile photo 1 on Tal

Sujay Biswas

Software Engineer | Flutter | Node.js | React.js | Full-Stack | BLE | MQTT | IoT | AI-Assisted Development | Healthcare Tech

Bengaluru

3+ years of work experience

Marbles Health
May 20241 y 10 moMar 2026

Gurugram

● Designed and implemented resilient session flow logic, reducing session crashes by 35% and ensuring smooth handling of multi-session scenarios. ● Delivered cross-platform features for mobile and desktop apps supporting EEG and tDCS therapy, leading to a 30% reduction in session-related errors and improved device communication. ● Integrated AI assistants (ChatGPT, Claude, Cursor) into daily development workflow to boost productivity, reduce debugging time, and accelerate feature delivery by up to 40%. ● Designed a concurrent data processing pipeline using Flutter isolates and asynchronous streams to handle parallel EEG data streaming, tDCS control commands, and MQTT session events without blocking the UI thread. ● Delivered Unity-based cognitive therapy game integration for the EASE platform, enabling treatment sessions for 1400+ patients across 75+ clinics and supporting 1200+ clinical sessions. ● Collaborated with firmware engineers to integrate BLE and implement robust error handling, enabling real-time EEG/tDCS synchronization via MQTT between the patient app and doctor dashboard. ● Researched device capabilities and explored new BLE-based implementation methods, including in-depth study of SHAM stimulation protocols and relevant clinical studies to support advanced therapy features and ensure evidence-based development.
Applite Solutions LLC
Nov 20237 mosMay 2024

Dehradun, Uttarakhand, India

● Working on Hibiscus Health app (HIPPA compliant) and creating pixel perfect designs following material UI from Figma designs. ● Using GetX with MVC architecture as well as GetX for state management, routing, storage and dependency injection. ● Setting up CI/CD for code integration and delivery for agile development.
IESoftek
Feb 20221 yr 2 mosMar 2023

Hyderabad

Healthcare Application Backend ● Wrote REST APIs to add functionalities in the project. ● Updated existing APIs to enhance or change existing functionalities. ● Wrote code to retrieve data, apply filters or modify existing aggregation operations. ● Wrote code following the MVC architecture and maintaining best coding practices. Flutter ● Worked as lead flutter developer following the MVCS architecture and best coding practices. ● Wrote code to create UI from figma designs, creating separate widgets for reusable components for both android and iOS, ● Wrote code to integrate the APIs with the mobile application. ● Integrated different packages to implement various UI designs. Angular ● Developed user interfaces suitable for both desktop and tablet views. ● Integrated the API ● Worked with type safe code. ● Worked with SASS to write efficient CSS. ● Worked with reactive forms, RxJs, observables and ng Bootstrap.
I AM IN WORLD
Sep 20216 mosFeb 2022

Edtech Application - Supervised 3 interns under me - I was responsible for content Coding - Code review for all content - Creating general widgets for repetative designs
LeetCode
@sujay00005

Sujay’s AI Stack

antigravity
antigravity
claude code
claude code
claude
claude
cursor
cursor
github copilot
github copilot
openai
openai

Education

University of kalyani

Bachelor of Technology, Electronics and instrumentation

University of kalyani

20164 yrs2020

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Headline

Software Engineer | Flutter | Node.js | React.js | Full-Stack | BLE | MQTT | IoT | AI-Assisted Development | Healthcare Tech

About

I believe great software isn’t just about writing code—it’s about solving meaningful problems. Over the past 4+ years, I’ve built production-grade mobile and backend applications used in healthcare, where reliability, performance, and user experience matter. My expertise includes: • Flutter & Dart • Node.js & React.js • BLE & IoT Integration • MQTT Real-Time Systems • REST APIs • MongoDB & SQL • AI-Assisted Development Some results I’m proud of: • Reduced upload time from 90s to <15s • Reduced session failures by 35% • Built HIPAA-compliant healthcare applications • Integrated firmware, BLE devices, and real-time communication • Supported large-scale live product demonstrations across hospitals and conferences I’m passionate about building products that users love, writing maintainable code, and continuously improving as an engineer. Open to opportunities in Software Engineering, Flutter, and Full-Stack Development.

Location

Bengaluru

AI stack

antigravity

claude code

claude

cursor

github copilot

openai

Work experience

Software Engineer at Marbles Health, May 2024 - Mar 2026 · 1 y 10 mo, Gurugram, ● Designed and implemented resilient session flow logic, reducing session crashes by 35% and ensuring smooth handling of multi-session scenarios. ● Delivered cross-platform features for mobile and desktop apps supporting EEG and tDCS therapy, leading to a 30% reduction in session-related errors and improved device communication. ● Integrated AI assistants (ChatGPT, Claude, Cursor) into daily development workflow to boost productivity, reduce debugging time, and accelerate feature delivery by up to 40%. ● Designed a concurrent data processing pipeline using Flutter isolates and asynchronous streams to handle parallel EEG data streaming, tDCS control commands, and MQTT session events without blocking the UI thread. ● Delivered Unity-based cognitive therapy game integration for the EASE platform, enabling treatment sessions for 1400+ patients across 75+ clinics and supporting 1200+ clinical sessions. ● Collaborated with firmware engineers to integrate BLE and implement robust error handling, enabling real-time EEG/tDCS synchronization via MQTT between the patient app and doctor dashboard. ● Researched device capabilities and explored new BLE-based implementation methods, including in-depth study of SHAM stimulation protocols and relevant clinical studies to support advanced therapy features and ensure evidence-based development.

Full Stack Mobile App Engineer at Applite Solutions LLC, Nov 2023 - May 2024 · 7 mos, Dehradun, Uttarakhand, India, ● Working on Hibiscus Health app (HIPPA compliant) and creating pixel perfect designs following material UI from Figma designs. ● Using GetX with MVC architecture as well as GetX for state management, routing, storage and dependency injection. ● Setting up CI/CD for code integration and delivery for agile development.

Software Engineer at IESoftek, Feb 2022 - Mar 2023 · 1 yr 2 mos, Hyderabad, Healthcare Application Backend ● Wrote REST APIs to add functionalities in the project. ● Updated existing APIs to enhance or change existing functionalities. ● Wrote code to retrieve data, apply filters or modify existing aggregation operations. ● Wrote code following the MVC architecture and maintaining best coding practices. Flutter ● Worked as lead flutter developer following the MVCS architecture and best coding practices. ● Wrote code to create UI from figma designs, creating separate widgets for reusable components for both android and iOS, ● Wrote code to integrate the APIs with the mobile application. ● Integrated different packages to implement various UI designs. Angular ● Developed user interfaces suitable for both desktop and tablet views. ● Integrated the API ● Worked with type safe code. ● Worked with SASS to write efficient CSS. ● Worked with reactive forms, RxJs, observables and ng Bootstrap.

Flutter developer at I AM IN WORLD, Sep 2021 - Feb 2022 · 6 mos, Edtech Application - Supervised 3 interns under me - I was responsible for content Coding - Code review for all content - Creating general widgets for repetative designs

Education

Bachelor of Technology, Electronics and instrumentation, University of kalyani

Public links

leetcode: https://leetcode.com/sujay00005