Raj Soni
Backend Developer · System Design Enthusiast
I build scalable backend systems and real-world data-driven applications. Focused on distributed architectures, real-time pipelines, and production-grade engineering.
Experience
Work Experience
Jul 2023 — Aug 2023
Node.js Intern
DIT Interactive Pvt. Ltd., Bhuj
- Developed RESTful APIs for web applications using Node.js and Express
- Optimized backend performance and debugged production issues
- Collaborated on backend integrations and database operations
Sep 2022
Web Development Intern
Frontend Development
- Built responsive, user-friendly web pages using HTML and CSS
- Gained hands-on experience in frontend development workflows
Education
Academic Background
2023 — 2027 (Expected)
B.Tech in Computer Science & Engineering
Pandit Deendayal Energy University, Gandhinagar
- Current CGPA: 9.53
2021 — 2024
Diploma in Computer Science & Engineering
Government Polytechnic, Bhuj-Kutch
- CGPA: 9.64
Projects
Featured Work
Real-world systems built with production-grade architecture and modern tooling.
Sentinel
FeaturedReal-Time FinTech Fraud Detection System
- Built a real-time streaming pipeline to process financial transactions using Kafka and PySpark Structured Streaming
- Designed heuristic-based risk scoring engine that computes fraud risk levels in near real-time across distributed data
- Architected a 5-stage pipeline: Kafka ingestion → Spark inference → HDFS storage → FastAPI serving → React dashboard
System Architecture
Kafka → PySpark Streaming → HDFS (Parquet) → FastAPI → React SPA
Nexora
AI-Powered Expense Intelligence Platform
- Built AI-based expense tracking using OCR (Gemini 2.5 Flash) for receipt scanning and NLP (Llama 3.3 via Groq) for conversational input
- Designed backend with PostgreSQL, Redis caching for performance, and JWT-based RBAC authentication
- Integrated Ethereum Sepolia blockchain for tamper-proof audit trail and data integrity verification
CampusLink
College Social Network Platform
- Designed relational database schema for multi-role social platform supporting students, faculty, and clubs
- Built RESTful API layer with Express.js handling authentication, posts, and inter-college communication
- Implemented anonymous and verified identity posting with role-based access control
Skills
Technical Toolkit
Technologies I work with to build scalable, production-grade systems.
Languages
Backend
Databases
Systems & Tools
Achievements
Recognition & Milestones
GATE Qualified
Qualified the Graduate Aptitude Test in Engineering, demonstrating strong CS fundamentals.
Hackathon — 3rd Place
Secured 3rd place in a competitive hackathon, building a working prototype under time pressure.
LeetCode Rating 1500+
Consistent problem-solving practice with 1500+ rating, focusing on DSA and system design.
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Contact
Get in Touch
Currently exploring opportunities to learn, grow, and collaborate in tech.