Senior Software Engineer - Enterprise Integration

Client Job Description: Minneapolis only - Hybrid 3 days a week Senior Software Engineer - IBM ITX (ANSI X12) - Transportation Position Summary We are seeking a Senior Software Engineer with deep expertise in IBM Transformation Extender (IBM ITX) and ANSI X12 EDI transactions to design, develop, and support enterprise integration solutions for the transportation and logistics industry. The ideal candidate will have strong experience building scalable EDI solutions, translating business requirements into robust ITX maps, and supporting mission-critical B2B integrations with carriers, shippers, customers, and third-party logistics providers. This role requires technical leadership, hands-on development, and collaboration with business stakeholders, architects, and cross-functional engineering teams to deliver reliable, high-performance EDI solutions. Required Technical Skills 7+ years of software engineering experience with enterprise integration solutions. 5+ years of hands-on experience with IBM Transformation Extender (IBM ITX). Strong experience developing and maintaining IBM ITX maps. Deep understanding of ANSI X12 EDI standards. Experience working with transportation and logistics EDI transactions, including: 204 - Motor Carrier Load Tender 210 - Motor Carrier Freight Details and Invoice 214 - Transportation Carrier Shipment Status Message 990 - Response to Load Tender 997/999 - Functional Acknowledgments 820 - Payment Order/Remittance Advice 856 - Advance Ship Notice (preferred) Experience integrating with AS2, SFTP, FTP, MQ, REST APIs, or other B2B communication protocols. Strong understanding of EDI validation, acknowledgments, envelopes (ISA/GS/ST), and partner-specific implementation guides. Experience troubleshooting production EDI issues and transaction failures. Familiarity with XML, JSON, CSV, and flat-file transformations. Experience using version control systems such as Git. Preferred Qualifications Experience working with transportation management systems (TMS). Familiarity with cloud platforms such as AWS, Azure, or Google Cloud. Experience with Java, Python, or scripting languages. Knowledge of SQL and relational databases. Experience working in Agile/Scrum development environments. Exposure to DevOps practices and CI/CD pipelines. Transportation Domain Experience Key Responsibilities Design, develop, test, deploy, and maintain IBM ITX maps and integration solutions. Analyze business and EDI requirements and translate them into technical designs and ITX mapping specifications. Develop and maintain ANSI X12 transaction maps supporting transportation and logistics workflows. Troubleshoot, optimize, and enhance existing IBM ITX maps and integration processes. Collaborate with business analysts, EDI analysts, solution architects, and trading partners to implement new integrations. Perform impact analysis for new customer onboarding, trading partner changes, and regulatory updates. Support production environments by diagnosing mapping failures, data validation issues, and transaction processing errors. Create reusable mapping components and establish best practices for IBM ITX development. Participate in code reviews, technical design reviews, and architecture discussions. Develop unit tests and support system integration testing (SIT), user acceptance testing (UAT), and production deployments. Document technical designs, mapping logic, and operational procedures. Mentor junior developers and provide technical guidance on EDI and IBM ITX best practices. Ensure solutions meet performance, scalability, security, and operational standards.