PL/I Developer

Job Title: PL/I Developer Location: Remote Role Interview: Video Interview Description: The Software Development Senior Specialist provides expert-level design and development support for IT application integrations between the Manhattan Warehouse Management System (WMS), SAP and host systems. This role is responsible for the end-to-end development of new inbound and outbound interfaces, leveraging PL/I and Unix/Bash scripting in a distributed systems environment. The position serves as a technical leader and advisor, collaborating with cross-functional and offshore teams to deliver reliable, scalable, and high-quality integration solutions. Key Responsibilities • Design, develop, and enhance new application interfaces between Manhattan WMS and host systems; and SAP and host systems using PL/I and Unix-based scripting. • Lead interface development efforts from the host system perspective, ensuring alignment with business requirements and integration standards. • Analyze integration requirements across batch, near-real-time, and real-time data exchanges. • Model and implement data mappings, transformations, file layouts, and control flows for inbound and outbound interfaces. • Develop, modify, and maintain PL/I programs and Unix/Bash scripts supporting interface processing, validation, error handling, and recovery. • Collaborate with Manhattan WMS and SAP implementation teams, middleware teams, and upstream/downstream system owners to ensure seamless data flow. • Identify, troubleshoot, and resolve complex integration defects and performance issues through root cause analysis. • Support system, integration, and user acceptance testing activities by resolving defects and providing technical guidance. • Document interface designs, data flows, operational procedures, and support runbooks. • Coordinate development activities across onshore and offshore teams, ensuring delivery timelines and quality standards are met. • Communicate technical designs, implementation status, and risks to IT leadership and business stakeholders. • Serve as a technical consultant on WMS/ SAP integration architecture, interface behavior, and development best practices. • Mentor and provide technical guidance to less experienced developers. Required Qualifications • Minimum 8+ years of experience with PL/I programming in an enterprise integration environment. • Minimum 8+ years of working knowledge of Unix/Linux operating systems and Bash shell scripting. • Minimum 3+ years of experience with batch processing, file-based integrations, and job scheduling. • Minimum 3+ years of proven experience developing interfaces with Manhattan Warehouse Management System (WMS); or the similar experience developing interfaces with SAP S/4 HANA. • Strong hands-on experience in application development and system integration. • Deep understanding of host system integrations, including data validation, error handling, and reconciliation. • Strong analytical and problem-solving skills with the ability to diagnose complex integration issues. • Excellent written and verbal communication skills. • Ability to work independently in a remote, contract-based environment. Travel: This position doesn’t require any travel. Degree: Bachelors in computer science or equivalent work experience Preferred Qualifications • Experience in supply chain, logistics, or warehouse management domains. • Familiarity with EDI, message-based integrations, APIs, or middleware platforms. • Prior experience acting as a technical lead or advisor on enterprise integration initiatives. Experience supporting legacy and mainframe-adjacent systems in distributed environments.