Harshad Patil Email and Phone Number

Private Networks which run financial applications like Ledgers, Escrows, RWA tokens, etc.

Developing and maintaining changes to the Findora privacy focussed blockchain- Designed am Implemented Dense Merkle Tree and a Sparse Merkle Tree for ZK Transfer Commitment storage & Spent UTXO Nullifier storage- Integrating Turbo Plonk ZKP for anonymous asset transfer in the Findora POS blockchain- Knowledge of the Tendermint Consensus Mechanism and the framework- Visited conferences for Developer Evangelism and conducting workshops with Devs on Findora Privacy features- Worked on WASM build of the Rust Transaction Builder for Findora JS/TS SDKs- Developed Unit tests and Integration tests in Rust for various Findora blockchain features

- Worked on the AWS Signup team to build a robust, responsive backend for the Signup system- Interacted with other AWS Identity teams and projects to resolve bugs, solve customer issues and ensure high availability > 99.999 %- Built a distributed IP based automatic throttling system to counter DDoS attacks and registration bots attacking the AWS Signup page also ensuring smooth flow for valid users

I was hired as a Golang and Bitcoin API expert in the POS Oneledger network.- I first led a initiative to refactor the Oneledger Protocol codebase based on SOLID principles to improve Developer happiness working on the codebase- I took initiative in Design and Architecture discussions for various features such as Oneledger Naming Service, Gas estimator, Storage and Serialization of transactions, Oracle based Bridges for Bitcoin and Ethereum- Wrote high caliber code on a daily basis to satisfy product requirements- Document best practices and act as a knowledgeable resource for blockchain engineering and problem solving

Worked on various backend projects and provided expertise to take various features to production.LavaLamp Random Number Generator▸Built an implementation of turning the randomness of lava lamps to tangible random numbers used to shuffle card decks during play sessions.▸Designed the hardware architecture and the random number algorithms to make sure the system passed all industry standard randomness tests and audits.Cashier System▸Build a full fledged banking system for the Poker Game universe complete with buy-ins, payouts, two level user wallets to ease tax calculations, virtual money earnings and redemption, promotional bonuses.▸Built all the highly scale-able features with atomic transactions and rollbacks in MySQL with advanced dashboards for data analysis.

Building and maintaining large scalable systems with target towards responsiveness and consumer experience. Flight Search Engine - golang, redis ▸ Designed & led development to implement a new version of flight search & booking service▸ Handled numerous third-party backends and implemented compressed caching▸ Reduced the flight search average response time from 8 seconds to 500ms from the previous project resulting in improved customer experience and increase in number of bookingsPhonebook based network - golang, cassandra, firebase▸ Designed & led development to develop a network graph of users and their contacts based on their mobile phonebooks with cassandra as the graph data storage▸ Uploaded and stored data of 8 million users on the platform with tolerable latency▸ Resulted in identification of frauds/ agents and some viable customer groups for marketing▸ Implemented fast activities by friends and booked-by-contacts features with innovative use of bitmaps

Worked in the capacity as Software Developer across multiple projects and technologieswith different teams. Worked on Ruby, PHP, RoR, Laravel, Sinatra, NodeJSInventory Management System - RoR, MySQL▸ Developed an internal tool to manage and track inventory with MySQL database as storage▸ Build various html/javascript interfaces for business development, inventory quality team, etc. to interact with internal databases▸ Built a mongodb based fast analytics system for daily/hourly insights in driver logins, inventory availability to drive business decisions and incentives▸ Worked in a closely knit team of three to maintain the application and develop features of product requirements Notifications System - PHP, Redis▸ Developed a notification system to send company wide customer and business notifications▸ Developed a template management system with versioning for ease of product managers