Joshan
John
Software Developer with 1.5+ years of professional experience at IBM and JesLife, Experience delivering production-grade features including agentic RAG systems, hybrid vector search, and secure, scalable data pipelines.
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AboutSoftware Developer with 1.5+ years of professional experience at IBM and JesLife, Experience delivering production-grade features including agentic RAG systems, hybrid vector search, and secure, scalable data pipelines.
Skilled across backend, frontend, and mobile development (Spring Boot, FastAPI, Node.js, Flutter), with exposure to process mining, LLM integration, and CI/CD automation. Highly collaborative, outcome-focused, and committed to writing robust, well-tested code that drives measurable impact.
Skills
Core expertise
7+
Years coding
3+
Roles held
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Work- →Performed data analysis, feature engineering, and visualization using Python and key data science libraries.
- →Developed and optimized machine learning models for prediction, classification, and customer analytics.
- →Created sales forecasting and customer segmentation solutions using XGBoost and K-Means clustering.
- →Improved model performance through hyperparameter tuning, cross-validation, and rigorous evaluation.
- →Delivered complete machine learning solutions with clear documentation and reproducible workflows.
GitHub
Open-source activity & contributions
×2Pull Shark
Opened a pull request that has been merged
Pair Extraordinaire
Co-authored a merged pull request
Quickdraw
Closed an issue or PR within 5 minutes of opening
YOLO
Merged a PR without code review
Arctic Code Vault
Contributed code to the 2020 Arctic Code Vault
Work
All Projects
Chest X-Ray Classifier
Deep learning model for classifying chest X-ray images into Normal, Pneumonia, and COVID-19 categories using TensorFlow and Keras. Achieved high accuracy through transfer learning with a VGG16 backbone, data augmentation, and fine-tuning. Built an interactive Flask web app for real-time inference with drag-and-drop image uploads.
Lucky Wheel
Built an Android 'lucky wheel' game using device sensors and Jetpack Compose. Implemented user authentication (email/Google), real-time leaderboard, and persistent sessions with Firebase. Designed a custom wheel editor and stored game data in Firebase using scalable, production-ready patterns.
WanderWaves
Built a dynamic PHP web application with a MySQL backend for a fictional Dublin property lettings agency. Implemented CRUD functionality for properties, agents, and customers, with role-based access control using PHP sessions and cookies. Created dynamic navigation, form validation, and secure database interactions to provide a smooth user experience.
Go Game
Developed a Python-based Go board game with a PyQt6 GUI, focusing on intuitive gameplay and a clean visual design. Implemented core rules: stone placement, capture logic, turn management, Ko and Suicide rules, and scoring. Utilised a signal-slot architecture for real-time UI updates and added features such as undo, skip turn, and an interactive scoreboard and menu system.
Credentials
Let's Build
Something
Open to new roles, freelance work, or a good conversation about tech.