ROSHAN RAJ
Full-Stack Developer • Systems & Compilers Engineer • ML Researcher
Capabilities & Stack.
Bridging core computer science fundamentals with high-performance web systems and machine learning analytics.
Full-Stack & Real-Time Web
Architecting end-to-end web applications with modern frontend frameworks, scalable API servers, relational databases, and WebSocket state synchronization.
Systems, Compilers & WebAssembly
Designing custom programming language pipelines (lexers, parsers, semantic analyzers, bytecode VMs) in C++ and compiling to WebAssembly for native-speed in-browser execution.
ML & Signal Analytics
Extracting PPG physiological signals from optical video data and training ML regression models validated against clinical reference measurements for embedded real-time deployment.
DevOps & Tooling
Solving 500+ competitive programming challenges with high algorithmic efficiency while maintaining clean CI/CD deployment pipelines on cloud platforms.
Work Experience.
Research internships, full-stack web engineering, and student mentorship track records.
Summer Research Intern
- ➜Developed a non-invasive hemoglobin estimation system using fingertip videos captured under controlled multi-wavelength LED illumination.
- ➜Implemented signal processing pipelines covering ROI extraction, noise reduction, PPG signal normalization, and feature extraction from optical video data.
- ➜Trained and validated machine learning regression models against clinical reference measurements, optimizing for real-time embedded deployment.
Web Developer
- ➜Led end-to-end web development of the Meru Conference 2026 platform, serving as the central hub for attendee registrations, schedules, and speaker profiles.
- ➜Collaborated cross-functionally with design and organizing teams to deliver features on tight deadlines.
Polestar Mentor
- ➜Mentored 15+ students in academic planning, competitive exam strategy, and structured goal-setting.
- ➜Designed personalized learning roadmaps and conducted regular feedback sessions to monitor student progress.
Selected Projects.
Interactive IDE view with code snippets, architecture highlights, and direct live links.
Education & Honors.
IIT Bhilai CSE undergraduate coursework & verified competitive programming honors.
IIT Bhilai
Competitive Programming
Solved 500+ problems across medium--hard difficulty. Strong foundation in arrays, strings, graph algorithms, dynamic programming, and trees.
Ramanujan Mathematics Olympiad 2023
Secured 2nd Rank in Patna District in the state-level Ramanujan Mathematics Olympiad held across Bihar.
Let's Connect.
Interested in full-stack development, compilers, or ML research? Reach out for placement opportunities, project collaborations, or tech discussions.