Senior Digital Payments Integration Developer

Location: Middletown, PA
Position Type: Hybrid
Hybrid Schedule: Onsite 3-4 times a month
Contract Length: Long-term with annual extensions

Position Overview:
This role serves as a senior technical leader responsible for designing and integrating complex enterprise systems, with a strong focus on digital payment solutions, cloud platforms, and high-volume transaction environments. The position blends hands-on backend development with architectural oversight to deliver scalable, secure, and high-performing systems across diverse technologies.

Duties:

• Lead the integration of enterprise systems including SAP S/4HANA, BRIM, Microsoft Dynamics 365, cloud telephony/IVR, web and mobile platforms, middleware, and cloud-hosted solutions
• Design, develop, and maintain backend services using .Net and Go (Golang)
• Build and optimize RESTful APIs, microservices, and distributed cloud-native architectures
• Collaborate with cross-functional teams to support CI/CD pipelines and containerized deployments using Docker and Kubernetes
• Write clean, maintainable, and well-tested code while participating in code reviews and knowledge sharing
• Apply modern development best practices and stay current with emerging technologies and open API frameworks
• Architect scalable, resilient integrations across enterprise platforms, payment systems, and external services
• Provide hands-on technical leadership and mentor development teams on architecture and best practices
• Leverage expertise in Azure cloud platforms and SAP BRIM to design compliant, enterprise-grade solutions
• Identify technical risks and develop mitigation strategies to ensure successful delivery and system stability
• Translate business and stakeholder requirements into robust digital payment and integration solutions
• Ensure system scalability, reliability, and adherence to industry standards and compliance requirements
• Evaluate and recommend payment platforms, APIs, and third-party services
• Implement security best practices including encryption, fraud prevention, and data protection
• Ensure compliance with PCI DSS, SOX, SOC2/3, CSA, HIPAA, ISO 27001, and other relevant standards
• Optimize transaction processing performance, latency, and reliability while monitoring and troubleshooting issues
• Lead and contribute to enterprise project team initiatives and system implementations
• Analyze integration models and solution components for high-volume processing environments
• Identify opportunities to reduce data duplication and streamline integrations
• Drive continuous improvement efforts to enhance integrations, data flow efficiency, and system performance
• Build and maintain strong relationships with technical teams, business stakeholders, vendors, and partners
• Produce and maintain comprehensive technical documentation including designs, test plans, and impact analyses
• Work independently to deliver assigned tasks while adhering to established standards, policies, and procedures
• Perform additional duties and support project needs as required

Required Skills:

• 8+ years of experience as a Senior Developer or in a similar role, delivering enterprise-grade solutions
• 8+ years of expertise integrating SAP, Microsoft Dynamics, Azure cloud platforms, IVR systems, and external systems within high-volume contact center environments
• 5+ years of experience developing and maintaining payment processing applications, including modern digital payment methods across diverse project scopes
• 3+ years of backend development experience using Go (Golang)
• 3+ years of backend development experience using .Net
• Strong understanding of RESTful API design and decentralized microservices architecture
• Experience working with containerization tools such as Docker and Kubernetes
• Familiarity with cloud platforms including AWS, GCP, or Azure
• Proficiency with Azure DevOps (ADO), Git, and version control workflows
• Solid understanding of concurrency, memory management, and performance optimization in Go and .Net
• Proficiency in Microsoft Office 365 tools including Teams, Word, Excel, and PowerPoint, along with experience using the ADO Testing Module
• Experience designing and implementing integrations with external systems in tolling environments, such as toll collection and traffic management systems