Omkar Lubal

Experience

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  Visual Data Processing (now Visual Computronics)

  Dec 2017 - Feb 2018

  Software Engineer Intern

  Created a Billing Software using Java Swing and PostgreSQL to be used by the internal team to generate and track invoices.

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  Crio.Do

  Feb 2020 - Jul 2020

  Backend Developer Intern

  o Developed a Java library containing core functionality of a stock portfolio manager application. Integrated various REST services and stock quote providers to improve availability. Implemented Multithreading to improve application performance.o Developed a REST API to fetch restaurants near a user using Spring Boot and MongoDB, for a food delivery app QEats. Used JMeter to load test the API under varying amounts of traffic. Integrated Redis to cache data and return it for similar requests, improving app’s loading time. Created JUnit and Mockito tests ensuring code and functionality correctness. o Built a backend system for a Quiz Application. Created REST APIs using Spring Boot and MongoDB. Wrote unit tests using JUnit and Mockito. Dockerized the system using Docker Compose and deployed it to AWS EC2. Show less

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  KNOREX

  Oct 2020 - Mar 2022

  Software Engineer I

  Backend: Java, Spring Boot, MySQL, MongoDB, RedisFrontend: JavaScript, jQueryo Developed multiple features using Spring Boot, jQuery, MySQL, and MongoDB for XPO i.e. company’s core ad serving platform. Wrote patch scripts for databases (SQL and NoSQL) using Python and JavaScript to maintain data integrity and compatibility for supporting new features. Resolved system critical blockers and helped maintain 95% system uptime.o Built a scalable and fault tolerant bulk account creation feature for creating 1000s of accounts on our system. Utilized FTP to feed account creation data to an AWS SQS pipeline and created CRON jobs in distributed backend pods to fetch from this pipeline and asynchronously create accounts.o Implemented jQuery DataTables and paginated corresponding APIs to decrease loading time by 30% in the Transaction console. Introduced multithreading in paginated APIs leading to a 25% reduction in time required to fetch data from multiple sources.o Achieved a 15% reduction in timeouts during peak hours by investigating and caching responses in Redis for expensive API calls. Show less

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  Amazon Web Services (AWS)

  Jun 2023 - Aug 2023

  SDE Intern

  o Engineered a highly scalable X.509 certificate security check using Java, Simple Workflow Service(SWF), and DynamoDB to scan vulnerabilities among 1M+ certificates across 100+ clients.o Utilized DynamoDB’s Global Secondary indexes to boost read latency by 80%. Integrated feature withSWF to make service distributed and resilient to faults.o Built it to be the first feature that accepted custom configurations from customers boosting flexibilityand the overall user experience. Implemented full coverage test suites using JUnit and TestNG. Show less

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  Amazon Web Services (AWS)

  Jul 2024 - now

  Software Development Engineer