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Sabyasachi
@brain_exis
Level 1
Innovative AI apps for a connected world
Bangladesh
English, Bengali
About me
Hi! I’m Sabyasachi, a Mobile App & Website Developer with AI expertise. I help startups and businesses turn ideas into fast, scalable, and user-friendly digital products.With 3+ years of experience, I specialize in building modern mobile apps (iOS & Android) and responsive websites that are fast, secure, and user-focused. I also integrate AI-powered features like chatbots, smart automation, recommendation systems, and intelligent workflows to give your product a competitive edge. I understand your goals and deliver clean, reliable solutions. Let’s build something amazing together!
Skills
Sabyasachi
Offline •
Average response time: 1 hour
See my services
AI Mobile Apps
I will do ai mobile app development,ai website development,ai developer,ai automation
Portfolio
Work experience
Sr. Software Engineer
BRAC • Full-time
Aug 2022 - Feb 2026 • 3 yrs 6 mos
I worked as a Senior Software Engineer at BRAC for more than 3+ years, where I was responsible for building reliable and user-focused digital solutions across both web and mobile platforms. My role involved transforming complex requirements into practical, scalable systems that supported real-world impact. During this time, I took ownership of developing end-to-end applications, handling everything from backend logic to frontend interfaces. I emphasized writing clean, efficient code and ensured that every solution was optimized for performance and long-term maintainability. Working alongside cross-functional teams, I actively contributed to aligning technical execution with business goals. I also played a key role in selecting modern tools and technologies suited to each project’s needs, while maintaining high standards in testing, deployment, and system security. Over the course of my journey, I delivered multiple successful products that improved usability, streamlined workflows, and enhanced overall system efficiency.
13 Reviews
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Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
1-5 out of 13 Reviews
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briajlong
United States
Great work on my AI Task Management app prototype. Clean dashboard, smooth clickable flow, and the AI task generator works well. He understood the requirements quickly and handled all my change requests without any hassle. Communication was excellent. Will be back for the actual app development. Highly recommend.
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carolcbaldwi
United States
"Very happy with the work. The seller understood the AI education app requirements clearly and implemented the features as discussed. Professional, responsive, and easy to work with. Highly recommended! "
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scott_rodriguej
United States
Working with Sabyasachi on my fitness tracker app, The Fit Atelier, was a genuinely wonderful experience. From the very beginning, he was professional, patient, and always quick to respond whenever I had questions. He kept me updated at every stage, so I never had to wonder where things stood. Before...
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jessicargray
United States
"Really enjoyed working with Sabyasachi. He understood the idea behind the property matching website and brought it together nicely. The design came out clean, simple, and easy to follow. He was also open to feedback and made the changes without any issues. Happy with the result. "
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mariodaguirr
United States
Sabyasachi was cooperative and responsive throughout the project. He listened to my concerns, worked on the issues, and provided an updated version of the code. I appreciate his effort and support. Would be happy to work with him again!
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