Available to hire
Hi, I’m Ling Hua. I am a results-oriented software engineer with extensive experience building full-stack web applications using C#, .NET, AngularJS, and SQL Server. I thrive in Agile teams and enjoy turning complex requirements into robust, scalable solutions.
Over the years I’ve shipped enterprise-grade telecom, retail, and finance software for companies like Verizon, ADT, Vizient, and Nokia. I’m passionate about collaborative problem solving, continuous learning, and delivering high-quality software that meets user needs.
Skills
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Language
English
Fluent
Work Experience
Senior Software Developer (Full Stack) at Everon
January 31, 2025 - July 29, 2025Added new features for ADT commercial sales applications using Angular JS, C# with .NET and MS SQL server. Maintained UI and services using Angular JS, C# with .NET and MS SQL server. Experienced with SQL Server writing queries including joins, inserts, updates, query optimization, and stored procedure development. Utilized Git for source control and Jenkins for CI/CD including code review, checkin, automated build, testing, and deployment on test and production environments. Experienced in building RESTful APIs, AJAX, and WCF services. Used Visual Studio IDE, GIT, and Agile methodologies.
Senior Software Engineer at GTN
January 31, 2020 - July 29, 2025Created backend tasks for new features of toll tags application including billing payment process and account management using C# with .NET and MS SQL server. Maintained UI and services with Angular and C# with .NET and MS SQL server.
Senior Software Engineer at Vizient
October 31, 2019 - July 29, 2025Enhanced Finance Accounting systems (CICM/CPA and PRS) using C# with .NET, JSON, and JavaScript with HTML and MS SQL Server, following Agile methodology.
Lead Software Engineer at Verizon
April 30, 2019 - July 29, 2025Delivered complex applications for Verizon Retail using C#, .NET, Micro Service/UI, Angular JavaScript, MS SQL Server, and WCF. Conducted system testing and provided production support. Designed and developed .NET desktop applications interfaced with Computer Telephony Integration systems like Genesys to automate caller account retrieval. Developed web applications for intelligent call management and call transfers. Used AWS cloud environments for code server environment and deployments. Designed and implemented GUIs for Verizon internal teams and communicated with stakeholders regarding change requests.
Lead Software Engineer at Verizon
November 1, 2008 - July 29, 2025Delivered complex ordering, tickets, and wholesale portal systems for Verizon using Java, HTML, JavaScript, WebLogic, and Oracle server. Performed system testing and production support. Developed web applications for wholesale ordering, trouble tickets, and managing wholesale applications portal. Collaborated with project managers, technical leads, team members, and customers to understand and implement change requests.
Senior Software Developer (Full Stack) at Everon
January 1, 2025 - October 13, 2025Added feature-rich enhancements for ADT commercial sales applications using AngularJS, C#, .NET, and MS SQL Server; maintained UI and services; authored and optimized SQL Server queries (joins, inserts, updates) and implemented stored procedures. Used Git for version control and Jenkins for CI/CD, enabling automated builds, tests, and deployments across test and production environments. Built RESTful APIs and AJAX/WCF services; collaborated in an Agile setting; provided production support and created unit, integration, and end-to-end tests.
Contractor at GTN
January 1, 2020 - October 13, 2025Responsible for backend tasks for toll-tag application features such as billing, payment processing, and account management using C#/.NET and MS SQL Server; also maintained UI and services with Angular and C#.NET; performed end-to-end software testing.
Senior Software Engineer at Vizient
October 1, 2019 - October 13, 2025Enhanced Finance Accounting system CICM/CPA and PRS using C#/.NET/JSON and JavaScript with HTML and MS SQL Server in an Agile environment; conducted end-to-end software testing.
Lead Software Engineer at Verizon
April 1, 2019 - October 13, 2025Delivered complex Verizon Retail applications using C#, .NET, Micro Service/UI, AngularJS/JavaScript, and MS SQL Server; implemented WCF services; provided system testing and production support. Designed and developed desktop integration with CTI (Genesys) to fetch caller accounts for agents; built cloud deployments on AWS and developed web apps to route calls through Intelligent Call Management. Created desktop overlay UI for account access; collaborated with PMs, leads, and customers to implement changes.
Lead Software Engineer at Verizon
November 1, 2008 - October 13, 2025Delivered wholesale ordering, tickets, and portal systems for Verizon Wholesale using Java, HTML, JavaScript, WebLogic, and Oracle; designed and developed web applications for ordering, trouble tickets, and portal access; provided production support; collaborated with cross-functional teams to implement change requests.
Software Engineer at Nokia
July 1, 2000 - October 13, 2025Delivered wireless Internet application; web application using Java, HTML, JavaScript, and Oracle DB; performed system testing and production support; end-to-end software testing.
Software Engineer at Nortel
July 1, 1997 - October 13, 2025Created and delivered automation tool using C++ for testing Nortel switch systems.
Senior Software Developer (Full Stack) at Everon
January 1, 2025 - October 22, 2025Added new features for ADT commercial sales applications using AngularJS, C#, .NET, and MS SQL Server. Maintained UI and services across these applications. Wrote optimized SQL queries (JOINs, INSERTs, UPDATEs) and developed stored procedures. Used Git for source control and Jenkins for CI/CD, handling code reviews, builds, tests, and deployments on test and production environments. Built RESTful APIs and AJAX-based components; worked with WCF. Used Visual Studio, Agile practices, and provided production support. Created unit, integration, and end-to-end tests. Implemented features and fixed issues across two VB.NET/SQL Server applications.
Contractor at GTN
January 1, 2020 - October 22, 2025Developed backend tasks for toll tag application features including billing, payment processing, and account management using C#/.NET and MS SQL Server. Maintained UI and services with Angular and C#/.NET; performed end-to-end software testing.
Senior Software Engineer at Vizient
October 1, 2019 - October 22, 2025Enhanced Finance Accounting CICM/CPA and PRS systems using C#/.NET/JSON and JavaScript/HTML with MS SQL Server; contributed to Agile development. Performed end-to-end testing.
Lead Software Engineer at Verizon
April 1, 2019 - October 22, 2025Delivered complex Verizon Retail applications using C#, .NET, Micro Service/UI, AngularJS, and MS SQL Server; WCF; performed system tests and production support. Designed and developed a .NET desktop app integrating with CTI to provide agent access to caller accounts. Created a web app overlay to guide agents; deployed code in AWS cloud. Built an Intelligent Call Management-enabled workflow to route transfers; implemented UI for internal teams.
Lead Software Engineer at Verizon
November 1, 2008 - October 22, 2025Delivered Verizon Wholesale ordering, tickets, and portal systems using Java, HTML, JavaScript, WebLogic, and Oracle; conducted system testing and production support. Designed and developed web applications to manage orders, tickets, and wholesale applications in a single portal.
Software Engineer at Nokia
July 1, 2000 - October 22, 2025Delivered a wireless internet application, a web application using Java, HTML, JavaScript, and Oracle; performed system testing and production support.
Software Engineer at Nortel
July 1, 1997 - October 22, 2025Created and delivered automation tool using C++ for testing Nortel switch systems; end-to-end software testing.
Education
Master of Computer Science at The University of Arlington in Texas
January 1, 1993 - May 31, 1995Master of Computer Science at The University of Arlington in Texas
January 1, 1993 - May 1, 1995Master of Computer Science at The University of Arlington in Texas
January 1, 1993 - May 1, 1995Qualifications
Industry Experience
Software & Internet, Telecommunications, Financial Services, Retail, Computers & Electronics, Professional Services, Other
Skills
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