Rajdip Biswas
Full Stack Developer | Data Science Enthusiast
Kolkata, West Bengal, India
📞 +91-9874042218 | 📧 rajdippharma1989@gmail.com
LinkedIn: linkedin.com/in/dbrtechnopharma
HackerRank: hackerrank.com/profile/rajdippharma1989
LeetCode: leetcode.com/u/dbrtechnopharma
GitHub: github.com/rajdip1234
HackerEarth: hackerearth.com/@rajdippharma1989
CodeSignal: codesignal.com/profile/clyo41nuw00b9106squukrp6i
Technical and Soft Skills
- Programming Languages: Python, JavaScript, PHP
- Data Science / ML: Pandas, NumPy, Scikit-learn, TensorFlow, PyTorch, Hugging Face Transformers, XGBoost, LightGBM, MLOps
- Databases: MySQL, MongoDB, PostgreSQL, Redis, SQLite
- Cloud and DevOps: AWS (EC2, S3), Docker, Kubernetes, GitHub Actions, CI/CD pipelines
- Frontend: React.js, Next.js, Three.js, TailwindCSS, GSAP, Bootstrap, jQuery
- Backend: Node.js/Express.js, Laravel, Django, Flask, FastAPI, REST APIs, GraphQL
- Security: OAuth 2.0, JWT, encryption
- Mobile and UI/UX: React Native, Kivy, Figma, Adobe Photoshop
- Tools: Power BI, Tableau, MS Excel, Jupyter Notebook, Google Colab, ChatGPT, DeepSeek, Gemini, Cursor
- Other Skills: Team collaboration, Agile methodologies, problem-solving, creative thinking
Education
B.Sc. in Computer Science, West Bengal State University
📍 Kolkata, India | Jul 2009 – Dec 2012
Professional Summary
- Entry-level Data Scientist / ML enthusiast with 4+ years as a Full Stack Developer
- Proficient in data visualization, analytics, preprocessing, data mining, storytelling, and statistical modeling
- Experienced in developing ETL pipelines, feature engineering, and cloud-based ML solutions
- Skilled at building REST APIs and deploying data-driven web applications with AWS
Professional Experience
Full Stack Developer (Freelancer)
Remote | Apr 2023 – Aug 2025
Platforms: HYI.AI | Tribes | Upwork | Turing | Soul.AI
- Built production-grade apps using Python, Django, FastAPI, Flask, Node.js, React, SQL/NoSQL databases
- Deployed scalable solutions on AWS with CI/CD pipelines and Docker containerization
- Designed ETL pipelines and BI dashboards (Power BI, Tableau) — reduced processing time by 90%
- Optimized SQL queries and REST APIs, improving response time by 30%
- Implemented SEO and analytics, improving client reach and conversions by 10%
Full Stack Developer — Sash Info Services Pvt. Ltd.
Remote, India | Dec 2021 – Mar 2023
https://www.sashinfo.com/
- Enhanced Student Management System using React.js, Node.js, Laravel, React Native, MySQL, MongoDB
- Improved academic tracking, increasing student retention by 15%
- Optimized APIs and database performance, reducing reporting time by 30%
- Integrated payments and monitoring modules, improving operational efficiency by 15%
Software Developer — GA Solutions Pvt. Ltd.
Kolkata, India | Aug 2021 – Nov 2021
https://portal.gasolutions.in/
- Developed University Management System with analytics for 5 departments
- Reduced report generation time by 20% and enhanced server performance by 30%
- Implemented real-time synchronization, caching, and database indexing
- Created documentation and training for staff, improving team productivity
Web Developer Intern and Freelancer — Business Alphabets Corporation
Kolkata, India | Mar 2019 – Jul 2021
https://www.businessalphabets.com/
- Delivered 15+ responsive websites/CMS with HTML, CSS, JS, PHP, CodeIgniter, WordPress, MySQL
- Increased client leads by 30% through SEO and mobile-first design improvements
- Improved load speed by 30% using CDN and minification
- Integrated e-commerce payments and analytics dashboards
Key Projects
- Built full-stack platform using FastAPI, Flask, LangChain, Next.js, Three.js, TailwindCSS, GSAP, Django, PostgreSQL
- Features include PDF insight engine, auto time logging, invoicing, payment APIs, and AI-powered insights
- Reduced page load time by 30% through optimized asset loading and backend queries
- CNN-based image classification (TensorFlow/Keras) with 90% accuracy
- Integrated with React Native frontend and Node.js backend using MongoDB
- Served REST API for over 100 daily active users
- AI tools platform with modular architecture and REST API integration
- Reduced load time by 40% and scaled to 500+ monthly users
- Planned migration to modern React.js and Node.js stack
Awards and Achievements
- Awarded $40 Amazon Kindle credits for eBooks:
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Meta Database Engineer Professional Certificate (Python, Data Science, ML, MySQL Workbench)
Coursera Certificate Link
Oct 2022 – Mar 2023
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Meta Front-End Developer Professional Certificate (React.js, Node.js, ChakraUI)
Coursera Certificate Link
Jan 2022 – Jun 2022
- Participated in 3+ hackathons (HackerEarth & others), solving 50+ problems in Python, SQL, REST API, and data analytics
Ongoing Certifications
- Google Advanced Data Analytics Professional Certificate — Coursera (Jan 2024 – Aug 2025)
- IBM Machine Learning Professional Certificate — Coursera (Jan 2024 – Aug 2025)
- AWS Cloud Solutions Architect Professional Certificate — Coursera (Jan 2024 – Aug 2025)
- IBM Applied DevOps Professional Certificate — Coursera (Jan 2024 – Aug 2025)
- Microsoft Cybersecurity Analyst Professional Certificate — Coursera (Jan 2024 – Aug 2025)