Systems Integration Engineer

Systems Integration Engineer

Location:

Denton, TX

We are seeking a motivated and skilled Systems Integration Engineer who will be responsible for implementing, configuring, and supporting digital payment and transaction systems within a Pay Fac platform. This role is both technically skilled and customer-focused—someone who can translate business needs into smooth integrations between software, hardware, and secure network environments. Responsibilities include coordinating client setups and testing, troubleshooting live environments, and ensuring continued operational performance.

• Lead the technical implementation and configuration of payment systems for new and existing business clients, ensuring seamless integration with internal and third‑party applications (point‑of‑sale integrations and gateway setups).
• Own technical end‑to‑end deployment of merchant environments—testing transactions, funding, and reporting functionality prior to go‑live.
• Analyze transaction logs, API calls, and gateway responses to diagnose issues in real time.
• Troubleshoot complex/tier 3 network, connectivity, and terminal issues both remotely and on‑site when necessary.
• Provide training and documentation to internal teams on proper system operation and maintenance.
• Contribute detailed records of configurations, integrations, and versioning within CRM and technical systems.
• Collaborate with product and development teams to test enhancements, API updates, and new integration pathways.
• Monitor system performance of active integrations and proactively identify opportunities for optimization or automation.
• Follow compliance with PCI DSS, SOC 2, and other applicable data‑security standards.

• Bachelor's Degree or equivalent education and/or experience.
• 5 years related experience, including minimum 3 years in Fin Tech, payment processing, or POS integration support.

• Experience in payment facilitation (Pay Fac) or ISO environments.
• Experience installing, configuring, or supporting payment terminals, gateways, or point‑of‑sale software.
• Experience with integration testing, API key management, and terminal certification.
• Experience working with FIS, Elavon, Payrix, Stripe, or Fiserv platforms.

• Strong understanding of merchant transaction flows, funding timelines, and settlement reconciliation.
• Familiarity with REST APIs, webhooks, and secure network connections (SSL, VPN, tokenization).
• Excellent troubleshooting skills for hardware, software, and connectivity issues.
• Clear written and verbal communication skills, with ability to support both technical and non‑technical users.
• Proficiency in Zoho Desk, Zoho Projects, Postman, or comparable tools.
• Strong analytical and troubleshooting abilities across software, hardware, and network layers.
• Excellent communication and customer service skills with the ability to explain technical information clearly.
• Experience using service desk and project tracking software for documentation and task management.

• Communicate/Hearing Frequently
• Communicate/Talking Frequently
• Learn New Tasks or Concepts Frequently
• Make Timely Decisions in the Context of a Workflow Frequently
• Complete Tasks Independently Constantly
• Maintain Focus Constantly
• Remember Processes & Procedures Constantly
• Stationary Position (Seated) Constantly
• Vision Constantly
• Hand/Eye Coordination Occasionally
• Bend Rarely
• Complete Tasks in a Noisy Environment Rarely
• Feeling/Grasping/Handling Rarely
• Move/Traverse Rarely
• Repetitive Motions Rarely

• Hazards Occasionally

• 10% Travel to customer sites as needed for troubleshooting

• Mid‑Senior level

• Full‑time

• Quality Assurance

• Medical Equipment Manufacturing