# Cheng LIU

> Software Engineer at Microsoft

Location: Hoboken, New Jersey, United States
Profile: https://flows.cv/chengliu

Experienced Senior Software Engineer with a demonstrated history of working in the high speed growing healthcare information industry. Skilled in Java, PHP, Databases, Linux system, javascript. Strong knowledge on Healthcare information, Direct Project, CCDA and FHIR. Strong engineering professional with a Masters Degree focused in Computer Science from Stevens Institute of Technology.

## Work Experience
### Software Engineer @ Microsoft
Jan 2021 – Present | Redmond, Washington, United States

### Senior Software Engineer @ MaxMD
Jan 2018 – Jan 2021 | Fort Lee, New Jersey
Provide technical support on FHIR IG creation and validation
Work on HL7 FHIR Server setup
Lead Redekal (Pertexa) EHR system (Java, JSP, MS-SQL) design and improvement
Lead Eyefinity IDProof and domain/user provision workflow
Lead system upgrade of redhat server
Design and develop eFax API service and web portal
Design and develop MaxMD APP server side restful API

### Chief Software Engineer @ MaxMD Ltd
Jan 2017 – Jan 2018 | Bermuda
Redesign MaxSignatures to improve the accuracy of the positions of digital signatures and digital forms
Design and develop MaxMD mobile application backend services
Upgrade PHP from 5.6 to 7.1 and update all deprecated functions in new version

### Software engineer @ Max.md
Jan 2014 – Jan 2017
Design and develop Contract Management System to manage contract content in the system, track contract fulfillment status, notify to renew contract three months before contract expire date and combine the new contract system with existing subscription system using MySQL, Apache, PHP, JQuery, Ajax, Propel
Design and develop Authorized User Management System providing the feature to import user data in the register form and view user data in the system and download user reports based on different filters using MySQL, Apache, PHP, JQuery, Ajax, Propel
Design and develop Patient experience management project using PHP Symfony framework, HTML5, CSS3.
Develop web based PDF Viewer to show highlight in the PDF document in the browser using Java, Tomcat, Maven and PDFBox library
Design and develop Restful API for LexisNexis ID Proofing project to let the customer enter the basic information and see whether the information is matched in the LexisNexis database using Java, Tomcat, Maven and Resteasy.
Develop Directext chatting tool using java, openfire server and spark client open source (Java, XMPP protocol) to achieve multi-server communication and TLS connections between clients and server.
Design and develop java keystore management system using JSP
Design and develop Restful API for DirecTrust Directory using Java, Tomcat, Maven and Jersey.
Design and develop Restful API for DirecTrust HISPs using Java, Tomcat and Jersey.
Develop and maintain Crobjobs for MaxMD admin and customers
Develop and maintain admin tool for MaxMD staff using MySQL, Apache, PHP, JQuery, Ajax, Propel
Develop and maintain https://www.max.md, https://www.maxsignatures.com using MySQL, Apache, PHP, JQuery, Ajax,  Propel
Develop and maintain https://www.ih.md website using MySQL, Apache, PHP, JQuery, Ajax,  Propel, Symfony framework
Customize and Maintain horde email system using MySQL, Apache, PHP, JQuery
Develop CCD Web View using PHP, JQuery, xsl

### Software Engineer Internship @ CyberFlow Analytics
Jan 2013 – Jan 2013
Analyze selected MIT dataset contains PCAP/TCPDUMP files and attack list files that provide attack information of the data
  Create packet files contains all information in the raw data
  Create session files from the generated packet files 
  Build Neo4j database and graphs to show the links with information between nodes (IPs)
  Build Google map visualization to show the location of IPs and links with information on the map


## Contact & Social
- LinkedIn: https://linkedin.com/in/cheng-liu-35a4a464

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Source: https://flows.cv/chengliu
JSON Resume: https://flows.cv/chengliu/resume.json
Last updated: 2026-04-19