Hieu Dao
Full Stack Engineer at Catalyst Health Group- Claim this Profile
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Bio
Experience
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Catalyst Health Group
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United States
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Hospitals and Health Care
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100 - 200 Employee
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Full Stack Engineer
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May 2022 - Present
- Work with Javascript for server-side development in both Monolith and Event Driven Architecture for Microservices - Work with React for front-end development - Wrote stored procedure for data ingestion and transform the data to be stored in PostgresSQL - Worked with other DB such as MongoDB and RedisGraph - Integrated our code base with SonarCloud to monitor clean code and promote good code ethics - Worked with PO in an Agile methodology to design and develop code to meet requirements Show less
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IRIO
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United States
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Advertising Services
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1 - 100 Employee
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Java Developer
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Sep 2017 - May 2022
- Work with Java for server-side development to meet requirements - Work with ReactJS and JSP on UI development - Develop mobile app for iOS and Android utilizing React-Native - Perform DevOps task such as setting up a working test and staging environment with AWS cloud services - Utilize AWS for code pipelining release with CodeCommit to use as repository, CodeBuild to build the artifact, and CodeDeploy to deploy to the environment - Set up a monitoring system with AWS CloudWatch to alert when there are network outages - Implement notifications with AWS Simple Notification System for mobile push notification and email notifications for system related issue - Create and routinely update internal wiki space from Atlassian to publish important documentations such as important documentation, system set up guides, shared credentials, release notes, and configuration information In the past 4 years I have accomplished the following achievement: - Migrated the whole system to use AWS cloud services - Migrated the Platform to a new Phase 3 design - Integrated and improved the messaging system to Twilio - Converted and created new RESTful APIs for the system - Launched E-Commerce Service with full billing lifecycle management - Integrated IRIO with Realpage, Yardi, and AMSI as well as get certified - Integrated IRIO with social platform such as Facebook and Twitter - Enhanced SMS/MMS with link tracking, emoji, and personalization Show less
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IBM
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United States
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IT Services and IT Consulting
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700 & Above Employee
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Java Developer
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Aug 2014 - Sep 2017
- Acting as a software developer creating user interface using Java. - Work closely with BA and client to gather requirements - Analyze High-Level Design document to write application design to fit the needs of the design. - Perform system enhancement and maintenance support - Perform Unit and Assembly Testing to identify and update defects - Provide on-call support to troubleshoot arising issues - Acting as a software developer creating user interface using Java. - Work closely with BA and client to gather requirements - Analyze High-Level Design document to write application design to fit the needs of the design. - Perform system enhancement and maintenance support - Perform Unit and Assembly Testing to identify and update defects - Provide on-call support to troubleshoot arising issues
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Hewlett Packard Enterprise
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United States
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IT Services and IT Consulting
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700 & Above Employee
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Service Information Developer
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Sep 2012 - Aug 2014
- Acting as a software developer creating user interface using .Net framework and Java. - Involved in full software life cycle from requirements specification, design specification, to peer review - Meet with clients weekly to align client’s requirements and inputs with current status - Work closely with database analyst to conceptualize and design database model - Perform system enhancement and maintenance support - Create factory codes for serializing and deserializing data from the database - Construct an automated program to MailMerge data from database in order to generate weekly reports utilizing the data - Perform unit and QA testing to identify and update defects Show less
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Software Developer
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Feb 2011 - Aug 2011
- Collaborated with the development team to create and present technical architectures to client and project management that achieved a project’s functional and fiscal requirements - Built software application code and designed cross-browser scripts - Delivered software solutions to clients requiring internal applications and functionality that built a stronger client base, broadened and deepened client’s ability to improve efficiency, and expanded the effectiveness of client personnel - Managed solutions applications starting with the information gathering and progressing through the configuration and testing phase Show less
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The Exchange
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United States
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Retail
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700 & Above Employee
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Web Developer
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Sep 2010 - Dec 2010
Researched and identified key variables and developed a web portal for the Real Estate department. Conceptualized and tested a new site that sets as a portal for the department. Web Development - Design and create codes to achieve the goal of visual output on the project. Create and write data tables and queries for SQL Server to generate weekly reports. Manage and update weekly news feeds and reports. Researched and identified key variables and developed a web portal for the Real Estate department. Conceptualized and tested a new site that sets as a portal for the department. Web Development - Design and create codes to achieve the goal of visual output on the project. Create and write data tables and queries for SQL Server to generate weekly reports. Manage and update weekly news feeds and reports.
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CVS Pharmacy
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United States
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Pharmaceutical Manufacturing
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700 & Above Employee
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Pharmacy Technician
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Jun 2009 - Aug 2010
CVS Pharmacy; Pharmaceutical - Operate system Rx2000 on a daily basis to process new prescriptions and refill old prescriptions. Verify and override insurance claims, problems, prior authorization, and refill authorization. Manage inventory through AIMRx, return inventory to stock that exceed holding date to update balance on hand. CVS Pharmacy; Pharmaceutical - Operate system Rx2000 on a daily basis to process new prescriptions and refill old prescriptions. Verify and override insurance claims, problems, prior authorization, and refill authorization. Manage inventory through AIMRx, return inventory to stock that exceed holding date to update balance on hand.
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Education
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The University of Texas at Arlington
Information Systems