Remote PowerBuilder Specialist — Legacy App Champion

Mbi Llc; Dover (DE); Hybrid; USD 90,000 - 120,000; Full time

Job summary

Mbi Llc is seeking a seasoned PowerBuilder developer in the Dover, Delaware region to investigate, diagnose, and resolve incidents across legacy applications. You will work with DataWindows, PowerScript, and SQL against Oracle databases, while producing concise documentation and communicating risks and next steps.

The role emphasizes strong debugging skills, cross-application support, and collaboration in a hybrid/remote-friendly environment. Prior experience with .NET components is preferred.

Qualifications

• Five or more years of hands-on PowerBuilder development experience, including production support of legacy applications.
• Strong experience maintaining and troubleshooting existing PowerBuilder applications.
• Advanced knowledge of DataWindows, including: Retrieval and update logic, Computed columns, Nested and composite DataWindows.
• Strong PowerScript skills, including event-driven logic and object inheritance involving windows, menus, and user objects.
• Demonstrated ability to debug undocumented or unfamiliar codebases and determine system behavior directly from existing code.
• Strong SQL skills, including the ability to analyze and tune queries embedded in DataWindows.
• Experience working with Oracle databases or the ability to quickly become proficient with the application’s database environment.

Responsibilities

• Investigate and resolve application incidents and support tickets.
• Diagnose issues involving PowerBuilder, DataWindows, PowerScript, SQL, Oracle, and related application interfaces.
• Analyze existing application code, object inheritance, business logic, and data flows.
• Create and maintain basic technical documentation as system knowledge is developed.
• Communicate clearly about findings, risks, effort estimates, and recommended next steps.
• Support application builds and deployments when required.
• Respond to routine and priority issues within established support timeframes.
• Also provide support to other applications that are written in .Net.

Skills

PowerBuilder

DataWindows

PowerScript

SQL

Oracle

Documentation

Communication Skills

Debugging unfamiliar code

Tools

.NET/C#

ASP.NET Web Forms

ASP.NET MVC

Web API

ASP.NET Core

Job description

Mbi Llc is seeking a seasoned PowerBuilder developer in the Dover, Delaware region to investigate, diagnose, and resolve incidents across legacy applications. You will work with DataWindows, PowerScript, and SQL against Oracle databases, while producing concise documentation and communicating risks and next steps.

The role emphasizes strong debugging skills, cross-application support, and collaboration in a hybrid/remote-friendly environment. Prior experience with .NET components is preferred.