Avinash Singh

Developed the backend for Instashare to support object storage and larger file sizes for upload, enabling files sharing up to 2 GB and optimized the API calls. Implemented JIO STB signup process by integrating the JIO STB UI with the backend PHP API's. Optimized account creation API's and stabilized the normal signup process by deploying fixes for high-priority bugs. Implemented payment gateway with Razorpay JS checkout & PHP library, which included data validation, invoice generation, post payment data verification and debugging, reducing account creation failure by 80%. Implemented integration of Appsflyer web s2s, resulting in improved understanding of customer behavior and marketing strategy. Automated Ozonetel API integration which helped customer support for better and accurate customer reach with less efforts. Implemented JWT token for securing internal api calls from security threats and unauthorized access. Developed an automated PHP Bot that handles file transfers between remote S3 server and Digiboxx webapp. The bot is capable of logging in, searching/creating required folder path, handling errors and retrying failed transfers using a queue table. Developed DJANGO API's for file and folder copy implementation, store management for server storage, version control for different applications, etc. Secured Cron Job process by implementing JWT token-based authentication on python script, eliminating unauthorized triggers. Penetration testing the applications for vulnerabilities and loop holes using Kali Linux. Created ADMIN Panel features, including Bulk Coupon Creation, Merchant Sales Integration with approval process, Instashare error reporting, and role-based module access integration and many more. Built a vulnerable VM in 4 hrs for college hackathon, demonstrating skills in penetration testing. Led a team of trainees in PHP & PYTHON by managing tasks, reviewing code and ensuring optimal solutions and development standards.