SREE SIVAGAMA SUNDARI C

Project: Cryptocurrency Exchange & Trading Platform

• Developed web and API services implementing real-time push notifications via Pusher JS and WebSocket , with thorough testing using Postman and Insomnia .
• Integrated multiple payment gateways , including PayPal, Stripe, CoinPayments, Kraken , and CoinMarketCap APIs , to enable secure and seamless cryptocurrency and fiat transactions within the platform.
• Implemented QR code-based payment gateway to facilitate fast and secure user transactions.
• Developed a full-featured cryptocurrency exchange module supporting both market and limit order trading functionalities , enhancing user flexibility and platform performance.
• Developed and implemented a sophisticated trading chart solution using the TradingView JavaScript library, enabling dynamic, real-time market data visualization and analysis for enhanced user experience.
• Managed the installation, server deployment, and seamless integration of Blockchain APIs, supporting major cryptocurrencies such as Bitcoin (BTC), Ethereum (ETH), Tether (USDT), ERC-20 tokens, and their forked coins, ensuring reliable and efficient connectivity with the blockchain network.
• Led the installation, server deployment, and integration of security solutions, while proactively identifying and mitigating security vulnerabilities in existing applications. Conducted comprehensive security assessments and penetration testing on web applications, and played a key role in developing and implementing robust security policies to safeguard the organization's infrastructure.
• Developed a secure and efficient application using Remix JS, leveraging Solidity for smart contract development on Ethereum (ETH) and ERC-20 tokens, ensuring seamless integration and functionality within the blockchain ecosystem.
• Established a secure platform for transferring and withdrawing fiat currencies between users, focusing on financial interactions.
• Facilitated the integration of third-party APIs, ensuring efficient connectivity and functionality within the application ecosystem.
• Configured AWS infrastructure and implemented load balancing to ensure optimal performance, scalability, and high availability of the application.
• Architected and developed a liquidity module for the application, implementing automation to guarantee timely and accurate liquidity updates.
• Developed an Inventory Management System (IMS) to optimize stock, order, and inventory control. Enabled real-time product tracking, efficient stock management, order processing, and report generation, improving operational efficiency and decision-making for businesses.
• Developed an event management platform using AWS Recognition for face detection and identity matching. Integrated QR code-based attendee registration to automate and verify check-ins through facial recognition.
• Provided ongoing support and maintenance for projects, ensuring optimal performance and quick resolution of issues.
• Acted as the primary point of contact for clients, delivering timely updates and managing expectations throughout the project lifecycle.
• Worked closely with cross-functional teams to resolve issues, implement improvements, and maintain system stability for clients.

• Designed, developed, and launched the Day Book mobile application on the Google Play Store , enabling streamlined daily transaction tracking and record management for end users.
• Developed a custom WordPress plugin that enables merchants to seamlessly accept cryptocurrency payments from customers using the BinancePay payment platform , enhancing checkout flexibility and blockchain adoption in e-commerce.
• Plugin Name: SAGI – Crypto Integration for Binance Pay – a custom WordPress plugin built to facilitate secure and efficient cryptocurrency transactions via the BinancePay gateway.

Live Plugin URL: wordpress.com/plugins/sagi-binance-pay

LOVA APP:

• Developed the backend of the Lova app using Laravel REST API to handle data and business logic.
• Integrated Laravel Passport for secure API authentication and enabled smooth communication between the mobile app and backend.
• Optimized the backend for performance and scalability to handle growing user demands.

GEGO K12 SCHOOL MANAGEMENT SYSTEM:

• Supported and guided the development of homework management features, including assignment creation, submission tracking, and teacher-student interactions.
• Assisted in implementing fee management functionality.
• Collaborated with the team to design user-friendly interfaces for homework and fee modules.
• Contributed to the integration of role-based access controls for secure user access across different roles.
• Helped enable real-time notifications for homework updates and fee reminders to improve communication among students, parents, and staff.
• Developed custom Laravel packages to extend application functionality and enhance system performance, following best practices for package development and documentation.
• Managed the upgrade of Laravel from version Old Version to New Version, ensuring compatibility with the existing codebase
• Coordinated with internal project teams and clients to address technical requirements and ensure project milestones were met.
• Managed project documentation, troubleshooting, and post-deployment support to ensure consistent delivery of quality solutions.

Tender Application

• Developed a tender management web application enabling users to place bids for products (quantity-based) or services (time/duration-based) , with features for vendor onboarding, bid submission, and evaluation in a streamlined workflow.
• Developed a web-based tendering application that enables users to submit bids for product-based (quantity-driven) or service-based (time/duration-driven) tenders.

ICO: Initial coin offering

• Implemented ERC20 token purchase and sale functionality , integrating multiple cryptocurrency gateways including BitPay, Stripe, and Globee .

• Launched a full-featured web trading platform with an admin panel (Nova) and user dashboard (Laravel + Vue.js) , supporting fund transfers, brokerage, and deposit management .
• Contributed to the development of a QR-based visitor pass management system, enabling secure and efficient visitor identification, check-in, and access tracking.
• Developed a high-performance bulk email system with SMTP rotation to ensure reliable delivery and reduce the risk of spam filtering during large-scale campaigns.

Project:

• Designed and implemented HYIP strategies to optimize investment returns, while assessing and managing associated risk levels.
• Built a shopping cart system using the CodeIgniter framework , integrated with secure payment processing and dynamic product catalogues.
• Built a crowdfunding module with PayPal integration for secure and scalable campaign funding.
• Created a secure custody wallet system using the OPC platform to ensure asset protection and compliance.

• Designed and implemented a MLM system featuring configurable ranking, referral tracking, level-based commissions , and fast-track bonus calculations , integrated with cryptocurrency payment gateways such as Bitcoin Direct and CoinPayments .

• Developed a manual payment processing system tailored for e-commerce businesses to handle offline and custom payment workflows.
• Created a custom WordPress plugin to support MLM functionalities including user hierarchy, commissions, and referral tracking.
• Developed a Subdomain and Lead Contact Management System , including custom user authentication and client segmentation modules using CodeIgniter.
• Implemented an SMS gateway integration, enabling efficient and reliable messaging services within the application.
• Utilized cPanel for application deployment, streamlining server management and configuration for improved hosting efficiency.