

PowerBuilder Developer
⭐ - Featured Role | Apply direct with Data Freelance Hub
This role is for a PowerBuilder Developer in Columbia, MD, for a 6-month contract, paying an unspecified rate. Requires 5-10 years of experience in PowerBuilder, C++, C#, and legacy system modernization, with public sector experience preferred.
🌎 - Country
United States
💱 - Currency
$ USD
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💰 - Day rate
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🗓️ - Date discovered
September 28, 2025
🕒 - Project duration
More than 6 months
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🏝️ - Location type
Hybrid
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📄 - Contract type
Unknown
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🔒 - Security clearance
Unknown
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📍 - Location detailed
Columbia, MD
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🧠 - Skills detailed
#Agile #Business Analysis #Unit Testing #Version Control #SQL Server #Debugging #C++ #Oracle #Migration #C# #GIT #Integration Testing #Computer Science #Web Services #SQL (Structured Query Language) #Data Migration #Databases #Code Reviews #Sybase #REST (Representational State Transfer)
Role description
PowerBuilder Developer (C++/C#/PowerBuilder)_Columbia, MD (On-site / hybrid)_Contract (6 Months)
Position Title: PowerBuilder Developer (C++/C#/PowerBuilder)
Location: Columbia, MD (On-site / hybrid)
Employment type: Contract
Duration: 6 Months
Justification: Needed to support legacy systems, modernization efforts, and critical transition areas involving PowerBuilder and backend logic. (SFMTA)
Experience Level: 5-10 years
Job Responsibilities:
• Maintain, enhance, and support existing PowerBuilder applications that are critical to transit agency operations.
• Analyze, troubleshoot, and resolve application defects and performance issues in legacy systems.
• Collaborate with business analysts, end users, and cross-functional teams to gather requirements, define specifications, and implement solutions.
• Support system modernization efforts by rewriting, refactoring, or integrating legacy PowerBuilder code into modern platforms using C++, C#, and other contemporary technologies.
• Develop and maintain backend logic, APIs, and interfaces to support business workflows, reporting, and integration with other enterprise systems.
• Perform code reviews, unit testing, and integration testing to ensure code quality, stability, and maintainability.
• Document system architecture, design decisions, and technical specifications for both legacy and modernized systems.
• Support data migration, conversion, and synchronization activities during system transitions.
Technical Skills & Qualifications:
• Bachelor’s degree in Computer Science, Information Systems, Software Engineering, or related field (Master’s preferred).
• 5-10 years of hands-on experience developing and maintaining applications in PowerBuilder (versions 9.x through 2019 R3 or later).
• Strong proficiency in C++ and C# with experience migrating legacy systems to modern architectures.
• Solid understanding of client-server application development, database interaction, and backend business logic implementation.
• Extensive experience working with relational databases (e.g., Oracle, SQL Server, Sybase), including SQL development, stored procedures, and performance tuning.
• Familiarity with object-oriented design principles, software development life cycle (SDLC), and Agile methodologies.
• Experience developing and consuming web services (REST, SOAP) and integrating with third-party APIs.
• Strong problem-solving, debugging, and analytical skills with the ability to diagnose complex system issues.
• Excellent written and verbal communication skills with the ability to interact effectively with both technical and non-technical stakeholders.
• Experience supporting mission-critical enterprise applications in a public sector or transportation environment is highly desirable.
• Familiarity with version control systems (e.g., Git, TFS) and CI/CD pipelines is a plus.
PowerBuilder Developer (C++/C#/PowerBuilder)_Columbia, MD (On-site / hybrid)_Contract (6 Months)
Position Title: PowerBuilder Developer (C++/C#/PowerBuilder)
Location: Columbia, MD (On-site / hybrid)
Employment type: Contract
Duration: 6 Months
Justification: Needed to support legacy systems, modernization efforts, and critical transition areas involving PowerBuilder and backend logic. (SFMTA)
Experience Level: 5-10 years
Job Responsibilities:
• Maintain, enhance, and support existing PowerBuilder applications that are critical to transit agency operations.
• Analyze, troubleshoot, and resolve application defects and performance issues in legacy systems.
• Collaborate with business analysts, end users, and cross-functional teams to gather requirements, define specifications, and implement solutions.
• Support system modernization efforts by rewriting, refactoring, or integrating legacy PowerBuilder code into modern platforms using C++, C#, and other contemporary technologies.
• Develop and maintain backend logic, APIs, and interfaces to support business workflows, reporting, and integration with other enterprise systems.
• Perform code reviews, unit testing, and integration testing to ensure code quality, stability, and maintainability.
• Document system architecture, design decisions, and technical specifications for both legacy and modernized systems.
• Support data migration, conversion, and synchronization activities during system transitions.
Technical Skills & Qualifications:
• Bachelor’s degree in Computer Science, Information Systems, Software Engineering, or related field (Master’s preferred).
• 5-10 years of hands-on experience developing and maintaining applications in PowerBuilder (versions 9.x through 2019 R3 or later).
• Strong proficiency in C++ and C# with experience migrating legacy systems to modern architectures.
• Solid understanding of client-server application development, database interaction, and backend business logic implementation.
• Extensive experience working with relational databases (e.g., Oracle, SQL Server, Sybase), including SQL development, stored procedures, and performance tuning.
• Familiarity with object-oriented design principles, software development life cycle (SDLC), and Agile methodologies.
• Experience developing and consuming web services (REST, SOAP) and integrating with third-party APIs.
• Strong problem-solving, debugging, and analytical skills with the ability to diagnose complex system issues.
• Excellent written and verbal communication skills with the ability to interact effectively with both technical and non-technical stakeholders.
• Experience supporting mission-critical enterprise applications in a public sector or transportation environment is highly desirable.
• Familiarity with version control systems (e.g., Git, TFS) and CI/CD pipelines is a plus.