Avinash Rathod - Backend Engineer | Contra
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Avinash Rathod
I am a Expert Python Developer.
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Pune, India
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Pune, India
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A private and temporary chat application designed to allow users to communicate securely without creating traditional user accounts. Users can create password-protected chat rooms and share the room details with others to start conversations. The application supports anonymous messaging, automatic deletion of messages after a specified period, and owner controls for managing chat rooms. It also supports sharing images and media, with files stored securely using cloud storage. The application was built with a focus on privacy, simplicity, and temporary communication.
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ScoreUp is a cricket scoring and match management Android application developed using Kotlin, designed to provide a simple and engaging way to track cricket matches. The app allows users to create matches, manage teams and players, record runs, wickets, overs, and other match events, and view live scores and match summaries. It provides an easy-to-use interface for updating scores ball by ball and tracking player and team performance throughout the match.
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Grow Snake is a 2D Android game developed using Kotlin, inspired by the classic snake concept with a number-based growth mechanism. The player starts with a small snake and collects numbered circles to grow larger. When two snakes or circles with the same number combine, their values are added together, allowing the snake to grow progressively. The game includes bot players, a 3-minute countdown, score and best-score tracking, coin rewards, and power-ups such as Magnet and Speed. Players can use collected coins to upgrade power-ups and their starting level. The game also includes player names, sound effects, background music, persistent scores, and AdMob integration for monetization.
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Worked on a US-based fintech and credit card platform, developing backend services using Python, Flask, Django, and FastAPI. Worked on REST APIs for payments, cards, users, and transactions, including ACH payments, bank transfers, refunds, settlements, and reconciliation. Integrated third-party services for bank linking, KYC, payments, notifications, and card management. Used AWS services such as Lambda, SQS, SNS, S3, SES, and CloudWatch, along with PostgreSQL, MySQL, Redshift, Redis, and SQLAlchemy. Also handled API performance, database optimization, production issues, and led a team of 8 developers.
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