Oct 2016 – Oct 2018 · 2 yrs · Dallas, Texas

• Led the effort to migrate a monolithic application to a microservices architecture leveraging cutting edge technologies such as Kubernetes and Docker.
• Deployed and managed various Kubernetes clusters using KOPS that served as our QA, Production and Dev environments.
• Used KOPS’ cluster file definition to create a CI/CD pipeline that served as our “infrastructure as code” deployment process.
• Wrote a set of Golang microservices that handled TCP connections from our IOT fleet and published them to a Kafka topic. This included a gRPC echo service to duplicate the messages to other environments such as QA and Production.
• Wrote a Kafka Stream application that used the Streams API stateful features to aggregate sensor readings which resulted in total counts.
• Wrote a set of Node.js microservices that served as the processing engine for IOT messages which accumulated “complete” messages and distributed them to their uniquely keyed topic.
• Wrote a proxy service that runs as a side-car with the Swift processor. It proxies Kafka messages as a gRPC stream.
• Containerized a Swift server application and deployed it as part of our microservices.
• Planned and built a data stream infrastructure to meet our short-team goal of migrating to microservices with the long-term goal of it becoming the foundation of a platform that will help accomplish the company's vision of becoming the data broker of parking.
• Deployed and maintain Kafka and Zookeeper clusters on Kubernetes as Stateful Sets that serve as the backbone of our new platform.
• Deployed the Confluent Schema Registry and documented best practices and guidelines for data modeling using Avro and the concepts of schema compatibility and evolution.
• Deployed and seeded various Cassandra db Stateful Sets to model and store IOT data.
• Deployed Prometheus and Grafana to work in unison with Istio to provide quick insights to metrics from microservices deployed to our cluster.

Sep 2015 – Sep 2016 · 1 yr · Dallas/Fort Worth Area

• Designed and developed core application to transform data via JSON configurations, reducing development time and redundant code and modules.
• Led team in prescribing to TDD to build sustainable and testable code; enhancing development phase.
• Restructured tooling used to transpile, maintain, and lint code; reducing development time, and enhancing user experience, a process adopted by our team.
• Developed efficient data transforms leveraging profiling and optimizations, and provided training to team as needed.
• Introduced improved Javascript standards and applications to replace Java; enhancements included JS concepts of inheritance, composition and OO.
• Refactored dated JS code to better utilize design patterns, eliminating the need to touch multiple files and codes.
• Promoted use of ECMA2015 to better utilize all accompanying new features.
• Developed nodejs modules for Point-of-Sales systems that gathered data continuously and transformed it to JSON format to save on Mongo, subsequently fueling client-facing data analytics and information tools that provided restaurants with current data analysis and insight.

Mar 2014 – Sep 2015 · 1 yr 6 mos · Plano, TX

• Engineered multiple full-stack applications with NodeJS, Knockout, Foundation, and various other libraries.
• Designed and planned customized experiences for each client utilizing various types of services in addition to normal features offered; including integration with SOAP service, CORS and integration with AWS services.
• Developed custom services in Python for clients outside the main platform; including cron services to synchronize databases, CSV files importing from S3 bucket, file uploading/downloading through AWS S3 and custom reporting.
• Innovated new software to ensure easier web applications development; widgets maintained standard from application to application.
• Partnered with Account Managers and clients to streamline development process from requirement gathering to release and debugging.
• Handled multiple bug report tickets from other applications, meeting all deadlines.
• Leveraged HTML, CSS, SASS and other front-end technologies in executing all duties.
• Maintained and enhanced internal Oracle data-pump application written in Ruby, development Virtual Machines using Chef and Vagrant running on VirtualBox/VMWare.

Jul 2011 – Aug 2013 · 2 yrs 1 mo · Richardson, TX

• Developed, maintained, and improved internal trouble ticketing application developed with Java EE 5 and Spring Framework in a 24/7 geographically diverse data-center.
• Tested, tracked and debugged application defects.
• Utilized SCRUM and Agile development methodologies to complete projects within deadlines.
• Designed and developed JUNIT tests to optimize daily application testing, and to improve reliability of internal trouble ticketing system.
• Designed and developed new and exciting web application in MVC architecture using EXTJS 4 as UI, replacing existing Java Swing UI.
• Adapted and created new JavaScript and JSON files to configure web app with old application.
• Exposed and migrated system’s EJB server-side interface to REST interface (via Jersey), modifying existing classes, and creating new classes to sustain the migration.
• Created and presented various presentations to the team on developing RESTful server-side interfaces.
• Produced various reports analyzing trouble ticket volumes to track improvement on automation processes being developed to improve system performance.

Jan 2011 – Jun 2011 · 5 mos · Dallas/Fort Worth Area

• Developed multiple Visual Basic applications that executed simulations of solar position scenarios in relation to a solar cell’s position on the ground based on the parameters given by the researchers using it.
• Designed the industrial process of the company’s new product before actual prototype development.
• Worked extensively with MS Excel, Access and Project to develop project time-lines, databases of simulation data and market-research matrices for the company.