

Bestinfo Systems LLC
PowerBuilder Developer
β - Featured Role | Apply direct with Data Freelance Hub
This role is for a PowerBuilder Developer in Columbia, MD, on a 6-month contract, offering a pay rate of "rate". Requires 5-10 years of experience in PowerBuilder, C++, C#, and legacy system modernization, preferably in a public sector or transportation environment.
π - Country
United States
π± - Currency
$ USD
-
π° - Day rate
Unknown
-
ποΈ - Date
December 27, 2025
π - Duration
More than 6 months
-
ποΈ - Location
Hybrid
-
π - Contract
Unknown
-
π - Security
Unknown
-
π - Location detailed
Columbia, MD
-
π§ - Skills detailed
#Code Reviews #Debugging #Web Services #Data Migration #REST (Representational State Transfer) #SQL (Structured Query Language) #C# #GIT #Business Analysis #Version Control #Databases #SQL Server #Sybase #Unit Testing #C++ #Agile #Oracle #Migration #Integration Testing #Computer Science
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:
β’ Maintain, enhance, and support existing PowerBuilder applications that are critical to transit agency operations.
β’ Analyze, troubleshoot, and resolve application defects and performance issues in legacy systems.
β’ Collaborate with business analysts, end users, and cross-functional teams to gather requirements, define specifications, and implement solutions.
β’ Support system modernization efforts by rewriting, refactoring, or integrating legacy PowerBuilder code into modern platforms using C++, C#, and other contemporary technologies.
β’ Develop and maintain backend logic, APIs, and interfaces to support business workflows, reporting, and integration with other enterprise systems.
β’ Perform code reviews, unit testing, and integration testing to ensure code quality, stability, and maintainability.
β’ Document system architecture, design decisions, and technical specifications for both legacy and modernized systems.
β’ Support data migration, conversion, and synchronization activities during system transitions.
Technical Skills & Qualifications:
β’ Bachelorβs degree in Computer Science, Information Systems, Software Engineering, or related field (Masterβs preferred).
β’ 5-10 years of hands-on experience developing and maintaining applications in PowerBuilder (versions 9.x through 2019 R3 or later).
β’ Strong proficiency in C++ and C# with experience migrating legacy systems to modern architectures.
β’ Solid understanding of client-server application development, database interaction, and backend business logic implementation.
β’ Extensive experience working with relational databases (e.g., Oracle, SQL Server, Sybase), including SQL development, stored procedures, and performance tuning.
β’ Familiarity with object-oriented design principles, software development life cycle (SDLC), and Agile methodologies.
β’ Experience developing and consuming web services (REST, SOAP) and integrating with third-party APIs.
β’ Strong problem-solving, debugging, and analytical skills with the ability to diagnose complex system issues.
β’ Excellent written and verbal communication skills with the ability to interact effectively with both technical and non-technical stakeholders.
β’ Experience supporting mission-critical enterprise applications in a public sector or transportation environment is highly desirable.
β’ 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:
β’ Maintain, enhance, and support existing PowerBuilder applications that are critical to transit agency operations.
β’ Analyze, troubleshoot, and resolve application defects and performance issues in legacy systems.
β’ Collaborate with business analysts, end users, and cross-functional teams to gather requirements, define specifications, and implement solutions.
β’ Support system modernization efforts by rewriting, refactoring, or integrating legacy PowerBuilder code into modern platforms using C++, C#, and other contemporary technologies.
β’ Develop and maintain backend logic, APIs, and interfaces to support business workflows, reporting, and integration with other enterprise systems.
β’ Perform code reviews, unit testing, and integration testing to ensure code quality, stability, and maintainability.
β’ Document system architecture, design decisions, and technical specifications for both legacy and modernized systems.
β’ Support data migration, conversion, and synchronization activities during system transitions.
Technical Skills & Qualifications:
β’ Bachelorβs degree in Computer Science, Information Systems, Software Engineering, or related field (Masterβs preferred).
β’ 5-10 years of hands-on experience developing and maintaining applications in PowerBuilder (versions 9.x through 2019 R3 or later).
β’ Strong proficiency in C++ and C# with experience migrating legacy systems to modern architectures.
β’ Solid understanding of client-server application development, database interaction, and backend business logic implementation.
β’ Extensive experience working with relational databases (e.g., Oracle, SQL Server, Sybase), including SQL development, stored procedures, and performance tuning.
β’ Familiarity with object-oriented design principles, software development life cycle (SDLC), and Agile methodologies.
β’ Experience developing and consuming web services (REST, SOAP) and integrating with third-party APIs.
β’ Strong problem-solving, debugging, and analytical skills with the ability to diagnose complex system issues.
β’ Excellent written and verbal communication skills with the ability to interact effectively with both technical and non-technical stakeholders.
β’ Experience supporting mission-critical enterprise applications in a public sector or transportation environment is highly desirable.
β’ Familiarity with version control systems (e.g., Git, TFS) and CI/CD pipelines is a plus.





