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Senior Full Stack Developer

Company:
Astyra Corporation
Location:
Harrisburg, PA
Pay:
42.5USD - 45USD per hour
Posted:
June 17, 2026
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Description:

Job Description

Senior Full Stack Developer

*This is a hybrid position with 2 days/week onsite

*We are not considering Corp-to-Corp (C2C) arrangements for this position

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 clients websites 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.

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 clients websites.

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/Knowledge/Experience:

Bachelor's degree in computer science, Information Technology, or related field (or equivalent experience)., Required

5+ years of experience in software development and system integration, including integration with enterprise and legacy platforms., Required

Proven experience developing and integrating payment processing systems (ACH/eCheck preferred), including secure transaction processing, encryption, Required

Strong proficiency in modern web application development, including JavaScript, HTML/CSS, front-end frameworks, and technologies such as Java, .NET,, Required

Demonstrated experience designing and developing customer-facing web applications with strong UI/UX focus, including responsive design, accessibilit, Required

Experience implementing APIs and system integrations using REST and/or SOAP services., Required

Experience with relational databases and data modeling., Required

Experience with Azure DevOps (ADO) for work item management, repositories, and CI/CD pipelines., Required

Experience migrating code from TFS to Git-based repositories., Required

Background in government, utilities, or other highly regulated environments., Required

Experience integrating with enterprise and legacy systems., Required

Experience with Microsoft Azure services, including App Services, Functions, and API Management., Required

Experience designing customer-facing payment, checkout, banking, or other transaction-based digital experiences, including application of UI/UX best, Required

Experience with high-availability, transaction-based systems, including online billing, invoice payment platforms, ACH processing workflows, and ban, Required

Proper email communication will only be done to and from @astyra.com email addresses. Please ensure you are communicating with approved Astyra recruiters by checking this point when receiving offers and messages from us. Please ensure you are communicating within these guidelines and proper channels for the quickest possible interview consideration!

#AC

Full-time

Hybrid remote

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