What are the responsibilities and job description for the Senior Full Stack .NET Developer Payment Systems position at Apollo Technology Solutions LLC?
Title: Senior Full Stack .NET Developer Payment Systems
Location: Harrisburg , PA - Hybrid
Duration: 1 Year
***Hybrid work arrangement with a minimum of 2 days per week onsite/in-office***
Job Description
We are seeking a highly skilled IT Consultant to design, develop, and implement a
secure eCheck payment solution integrated with our existing Online Payment
System (OPS). This role will focus on building a seamless user experience by
enabling customers to initiate payments via a web interface linked from the PUC
website(s), ensuring reliable, compliant, and scalable transaction processing. The
ideal candidate will bring deep expertise in payment systems, web application
development, and system integration, with the ability to deliver high-quality solutions
in a regulated environment.
Key Responsibilities :
"Design and develop a web-based eCheck (ACH) payment module that integrates
with the existing OPS platform.
"Build and maintain a secure customer-facing payment interface accessible via the
PUC website(s).
"Develop backend services and APIs to support payment workflows, validation, and
transaction processing.
"Ensure compliance with financial regulations, security standards, and data
protection requirements (e.g., PCI-DSS, NACHA guidelines).
"Collaborate with internal stakeholders to gather business and technical
requirements and translate them into effective system architecture and user
experience designs.
"Design,integrate, test, and deploy the eCheck solution with existing
enterprise/legacy systems and payment workflows.
"Conduct usability reviews and recommend interface improvements based on user
feedback, analytics,and best practices.
"Ensure compliance with accessibility standards and modern web usability
guidelines for public-facing applications.
"Troubleshoot and resolve issues related to payment processing, system interfaces,
and performance.
"Document system architecture, workflows, and technical specifications.
"Provide recommendations for scalability, reliability, and future enhancements.
"Support ongoing maintenance, upgrades, optimization, and production support.
"Participate in code migration from TFS to Azure DevOps (ADO) with Git version
control.
"Utilize Azure DevOps (ADO) for work item tracking, CI/CD pipelines, and code
management.
Required Skills:
" Bachelor's degree in computer science, Information Technology or related field (or equivalent
experience).
" 5 years of experience in software development and system integration, including integration
with enterprise and legacy platforms.
" Proven experience developing and integrating payment processing systems (ACH/eCheck
preferred), including secure transaction processing, encryption
" Strong proficiency in modern web application development,including JavaScript, HTML/CSS,front-end frameworks, and technologies such as Java, .NET,
" Demonstrated experience designing and developing customer-facing web applications
with strong UI/UX focus, including responsive design, accessibility
" Experience implementing APIs and system integrations using REST and/or SOAP services.
" Experience with relational databases and data modeling.
" Experience with Azure DevOps (ADO) for work item management,
repositories, and CI/CD pipelines.
" Experience migrating code from TFS to Git-based repositories.
" Background in government, utilities, or other highly regulated
environments.
" Experience integrating with enterprise and legacy systems.
" Experience with Microsoft Azure services, including App Services,
Functions, and API Management.
" Experience designing customer- facing payment, checkout, banking, or other transaction-
based digital experiences, including application of UI/UX best
" Experience with high-availability, transaction-based systems, including online billing, invoice
payment platforms, ACH processing workflows, and ban
Location: Harrisburg , PA - Hybrid
Duration: 1 Year
***Hybrid work arrangement with a minimum of 2 days per week onsite/in-office***
Job Description
We are seeking a highly skilled IT Consultant to design, develop, and implement a
secure eCheck payment solution integrated with our existing Online Payment
System (OPS). This role will focus on building a seamless user experience by
enabling customers to initiate payments via a web interface linked from the PUC
website(s), ensuring reliable, compliant, and scalable transaction processing. The
ideal candidate will bring deep expertise in payment systems, web application
development, and system integration, with the ability to deliver high-quality solutions
in a regulated environment.
Key Responsibilities :
"Design and develop a web-based eCheck (ACH) payment module that integrates
with the existing OPS platform.
"Build and maintain a secure customer-facing payment interface accessible via the
PUC website(s).
"Develop backend services and APIs to support payment workflows, validation, and
transaction processing.
"Ensure compliance with financial regulations, security standards, and data
protection requirements (e.g., PCI-DSS, NACHA guidelines).
"Collaborate with internal stakeholders to gather business and technical
requirements and translate them into effective system architecture and user
experience designs.
"Design,integrate, test, and deploy the eCheck solution with existing
enterprise/legacy systems and payment workflows.
"Conduct usability reviews and recommend interface improvements based on user
feedback, analytics,and best practices.
"Ensure compliance with accessibility standards and modern web usability
guidelines for public-facing applications.
"Troubleshoot and resolve issues related to payment processing, system interfaces,
and performance.
"Document system architecture, workflows, and technical specifications.
"Provide recommendations for scalability, reliability, and future enhancements.
"Support ongoing maintenance, upgrades, optimization, and production support.
"Participate in code migration from TFS to Azure DevOps (ADO) with Git version
control.
"Utilize Azure DevOps (ADO) for work item tracking, CI/CD pipelines, and code
management.
Required Skills:
" Bachelor's degree in computer science, Information Technology or related field (or equivalent
experience).
" 5 years of experience in software development and system integration, including integration
with enterprise and legacy platforms.
" Proven experience developing and integrating payment processing systems (ACH/eCheck
preferred), including secure transaction processing, encryption
" Strong proficiency in modern web application development,including JavaScript, HTML/CSS,front-end frameworks, and technologies such as Java, .NET,
" Demonstrated experience designing and developing customer-facing web applications
with strong UI/UX focus, including responsive design, accessibility
" Experience implementing APIs and system integrations using REST and/or SOAP services.
" Experience with relational databases and data modeling.
" Experience with Azure DevOps (ADO) for work item management,
repositories, and CI/CD pipelines.
" Experience migrating code from TFS to Git-based repositories.
" Background in government, utilities, or other highly regulated
environments.
" Experience integrating with enterprise and legacy systems.
" Experience with Microsoft Azure services, including App Services,
Functions, and API Management.
" Experience designing customer- facing payment, checkout, banking, or other transaction-
based digital experiences, including application of UI/UX best
" Experience with high-availability, transaction-based systems, including online billing, invoice
payment platforms, ACH processing workflows, and ban