Integration Applications Developer

AT-PAC; Roswell (GA); On-site; USD 90,000 - 135,000; Full time

Job summary

AT-PAC is seeking an Integration & ERP Applications Developer to design, build, and support enterprise integrations and internal business applications across our ERP, CRM, and operations landscape.

You will enable secure, scalable data exchange, automate workflows, and deliver visible operational insights across global business operations, working with REST and .NET APIs, Jitterbit, and other middleware.

Qualifications

• Experience designing and implementing API-based integrations.
• Strong knowledge of ERP and CRM environments.
• Proficiency with REST APIs and .NET-based integrations.
• Ability to document technical solutions clearly.

Responsibilities

• Design and develop API-based integrations across ERP, CRM, and RMS platforms.
• Build and maintain internal business applications supporting operational workflows.
• Develop backend services for data orchestration and processing.
• Implement secure and scalable data exchange solutions.
• Manage API authentication, error handling, and secure data transmission.
• Troubleshoot integration issues and optimize system performance.
• Document integration architecture and data mappings.

Skills

API integration

REST APIs

ERP/CRM systems

System integrations

Documentation

Tools

Jitterbit

Workato

iPaaS

Epicor Kinetic

Avontus Quantify

SQL

Job description

Job Description

The Integration & ERP Applications Developer is responsible for designing, building, and supporting enterprise integrations and internal business applications across AT-PAC's ERP, CRM, and operational systems landscape.

This role plays a critical part in enabling secure, scalable data exchange, system automation, and operational visibility across global business operations.

Key Responsibilities

Integration & System Development

• Design and develop API-based integrations across ERP, CRM, and RMS platforms
• Build and maintain internal business applications supporting operational workflows
• Develop backend services for data orchestration, transformation, and processing
• Implement secure and scalable system-to-system data exchange solutions

Technical Execution & Delivery

• Manage API authentication, error handling, and secure data transmission
• Perform unit testing, integration testing, and user acceptance testing (UAT)
• Support deployment activities and provide post-go-live stabilization (hypercare)
• Troubleshoot integration issues and optimize system performance

Documentation & Governance

• Document integration architecture, data mapping, and technical processes
• Ensure solutions align with enterprise standards for security, auditability, and scalability

Collaboration & Stakeholder Engagement

• Partner with IT, Operations, and external vendors to align integration solutions with business requirements
• Support cross-functional initiatives tied to ERP, CRM, and enterprise system strategy

Technical Environment

ERP: Epicor Kinetic (oneERP)

• RMS: Avontus Quantify (Rental management system)
• Integration Technologies: REST APIs, .NET APIs, Jitterbit (iPaaS), automation studio (Workato)
• Programming Languages: C#, VB.NET, Python, Java
• Databases: SQL and relational databases

Qualifications: Qualifications

Required

• Proven experience in system integrations and API development
• Strong knowledge of ERP and/or CRM enterprise environments
• Proficiency in REST APIs and .NET-based integrations
• Strong analytical, troubleshooting, and problem-solving skills
• Ability to document technical solutions clearly for both technical and business audiences

Preferred

• Experience with Avontus Quantify or similar rental/inventory systems
• Experience with Epicor ERP integrations
• Familiarity with integration platforms (iPaaS) or middleware solutions
• Exposure to global, multi-region enterprise environments

Key Success Factors

• Ability to deliver robust, scalable integration solutions
• Strong attention to data accuracy, system reliability, and performance
• Effective collaboration across business and IT stakeholders
• Commitment to continuous improvement and automation

Value to the Business

• Enables automation and scalability across enterprise systems
• Improves data accuracy and real-time operational visibility
• Supports execution of oneERP and global integration strategy
• Reduces manual processes and operational inefficiencies

Additional Information

• Safety and Securit y : Observes safety and security procedures, uses equipment and materials properly. Reports potentially unsafe conditions,
• Communication : Good written and verbal communication, organized thought processes, polite and respectful of others, adapts presentations to the audience.
• Workload Management : Timely completion of projects, makes time for unplanned assignments, adapts to changing priorities.
• Ethics and Integrity : Perceived fairness; tolerance; honesty; consistent in application of policies and procedures. Works with integrity; Upholds organizational values.
• Flexibility : Able to adapt behavior, opinions, tactics, and strategies to different situations, individuals, or changing priorities.

Teamwork : Respects all members; solicits other’s opinions; supports and complies with team decisions; shares useful