Software engineering solutions for internal teams and customers, including writing scalable REST and GraphQL APIs, ETLs, internal tools and web applications (Python, Ruby, React, Typescript) and a React Native mobile application.

Worked closely with clients to develop software that would improve their business performance and satisfy their business needs. Some of the projects described below:Database Analysis- Architected, designed and developed scalable big data analysis software with real time queries on 500GB+ datasets, and custom query language- Designed the structure and wrote efficient queries and aggregation pipelines in row oriented databases (MariaDB, MySQL), column oriented databases (ClickHouse, CrateDB) and NoSQL databases (MongoDB)- Created client interface with React.js and Flask with REST APIReport Creation Tools- Aggregated and transformed data from multiple sources to perform statistical analysis and computation in Python- Reduced report making time by a magnitude of 100,000xOther- Extensive work with web-scraping and data mining, google sheets integration, email integration- Developed and published Android Apps using modern architecture components

- Developed web scraping, data mining and data transformation scripts in Python- Developed a KNN machine learning recommendation engine based on mined data and user preferences

- Configured and maintained custom cloud OpenVPN servers at AWS, Alibaba- Configured and maintained site and client VPN servers using MikroTik router boards