Umi

About Umi

Experienced IT professional consultant with Around 7+ years of strong experience in Analysis, design, development and implementation of business applications with thorough knowledge in Java 8, J2EE, MVC/SOA, Microservices architecture, Spring Framework 4.0, Spring Boot 2, JPA, Angular, Hibernate, jQuery, Design Pattern, & AWS.Solid experience with Responsive Web Design technologies like HTML/HTML5, CSS/CSS3, JavaScript, Extjavascript AJAX, Bootstrap, XML, DHTML, jQuery and JSONGood knowledge of designing, deploying and operating highly scalable and fault tolerant systems using AWS services including Cloud Formation, AWS CloudFront, AWS EC2 instances, S3 buckets, RDS, DynamoDB, Glue, Lambda.Experience in development & Deployment of enterprise applications on web/application server such as Tomcat and Web Logic under Windows, LINUX and UNIX.Proficient in using higher level style syntax, LESS and SASS for writing CSS styles.Experience in handling messaging services using Apache Kafka.Expertise in developing Single Page Applications (SPA) with MVC architecture such as Angular 2, Angular 4 and 5.Expertise in developing applications using Restful Web Services, SOAP, JPA, JMS, Maven, Spring Batch, Spring Web flow and Java Scripts.Closely worked with Release Management Team in doing builds and deploying code into various environments like DEV/QA/SIT/UAT/Prod. Experience in working on source controller tools like Subversion SVN, GIT, CVS, IBM ClearCase and Perforce.Experience in container-based technologies like Docker, Kubernetes.Have continuous learning approach, learned and practices newer tools like Solr, Elastic search, Kibana and Lucerne.Working experience with on-demand/SaaS application development and cloud platforms.Extensive experience in using IDEs such as web logic workshop, STS, Eclipse and Net Beans. Hands-on experience working with SQL databases like MySQL, MS-SQL, PL/SQL, PostgreSQL, Oracle 12c/11g/10g & NoSQL database like MongoDB, DynamoDB & Cassandra.Experience in cloud computing for building and testing webservices like SaaS, PaaS and IaaS. Hands on experience with continuous integration and automation using Jenkins and version control tools such as SVN, CVS, JIRA, GitHub to control source code.Strong Experience developing Unit test cases using Junit.Strong ability to work within team and independently with good communication skills. Adaptive to new environment.

Experience

1. Full-stack Developer

   Airbnb

   Mar 2019 — Present

   Involved in Cross-Platform development across Airbnb Flights services, architected proactive polling system as back-end microservice using Core Java, PostgreSQL, Prometheus monitoring and in-house Gradle dependencies which improved Flight’s fare cache coverage by 33%. Maintained and developed Airbnb app for Flight’s product, involving in app’s – UI redesign, adapting new scalable architecture, modularized core features of the Flights products. Coded multiple feature components and participate in rigorous design sessions in an effort to provide a seamless, highly scalable, solution to keeping accurate inventory counts and providing accurate availability for Airbnb.com. Delivered end-to-end functionalities from web components to data APIs using React and GraphQL. Built new serverless solution to expose API endpoint through Functions as a code to handle out event-driven architecture and build later stages by communicating to messaging services like SQS and SNS to have a fanout situation. Improved services by adding build pipelines and configuring as deployable using Jenkins and Kubernetes. Created an Application platform interface for AWS using API Gateway, created S3 bucket for a backup of DynamoDB tables via writing scripts in Lambda which was triggered regularly for updated backup. Created an on-premises CI/CD solution using Jenkins and the Pipeline plugin which uses pipeline as code. This includes trace of all user activities and security to identify cluster termination and to protect data integrity. Working in a highly agile team on multiple Rest applications to provide near real-time availability and inventory counts to the Airbnb.com. Working in app which manages inventory management in dotcom and travel business. Designed & implemented additional functionalities for management of customer requests & incident tickets using Java 8 and hibernate framework. Designed AWS Lambda functions in Java