• Designed and maintained fast and cost-effective ETL pipelines for processing terabytes of data using Apache Spark, Apache Airflow and AWS EMR• Pioneered and maintained real-time streaming data systems using Apache Flink.• Propose and initiate projects on big data systems, data lakes; and fault-tolerant and scalable platforms to the Head of Engineering and CTO.• Performed enhanced monitoring, load testing and capacity planning for new and existing data systems.• Researched and evaluated big data solutions such as real-time analytics databases, data storage systems, NoSQL databases, and search engines.• Performs various data analysis tasks using Pandas and Plotly in Jupyter.

• Collaborated with engineers in designing, building, and testing fault-tolerant customer-facing platforms in Ruby on Rails.• Design and optimized business intelligence platforms which leads up to 3x better performance.• Maintained, monitored, and optimized different application and infrastructure components to prevent system downtime and bottlenecks using New Relic and PagerDuty.• Promoted strong DevOps best practices such as Infrastructure as a Code using Terraform and container orchestration in AWS ECS.• Designed and maintained MySQL databases with terabytes of data and other data solutions such as Redis and ElasticSearch.• Led the front-end development by establishing best practices and coding standards in ReactJS and JavaScript.• Designed and maintained RESTful APIs for customers and messaging middlewares between microservices.

• Discussed business requirements and technical details with over 5 projects with different clients from US.• Led the creative work of designing, building, integrating and testing of NodeJS and Ruby on Rails projects.• Integrated various external services such payment gateways and referral systems.• Provided technical training for other developers in trending technologies, practices, and tools.• Involved and initiated developer learning sessions with technologies such as Ruby on Rails, Search Engine with Lucene, andGraphQL.• Established agile practices of the team such as version control, refactoring, coding standards, and automated tests.• Discussed and facilitated the software project for the OJT.

• Maintained an above 90% code coverage of acceptance testing.• Worked closely with the designer to turn designs into responsive web pages using HTML and CSS.• Led the development team in helping the product manager to establish the goal for the next development iterations.

• Captured and defines the vision, goals, and roadmap of a report management application project together with various clients.• Ensure balanced decisions in project aspects such as scope, date, budget, and quality continuously at the release and iteration planning.• Led the different planning activities throughout the development such as portfolio, product, release and iteration planning.• Constantly managed the user stories and tasks which includes creating, refining, estimating, and prioritizing.• Defined the acceptance criteria of user stories and tasks and confirmed that the acceptance criteria were met during the iteration.

• Provided technical training on application and web development with Java, PHP, Ruby on Rails, and other trending web technologies.• Involved in the development of course curriculum with other IT Instructors.• Managed and developed an in-house course management system for the training center.• Facilitated the on-the-job trainees for the course management system.Courses taught:Fundamentals of Web; HTML and CSSJavascript and jQuery Version Control with GitIntroduction to DatabaseIntroduction to Programming with JavaWeb Programming with PHP Web Application Development with Ruby on RailsAgile Software Development with Scrum and eXtreme ProgrammingCareer Preparation