Lead IBM i / AS400 Developer

IBM

Newark, NJ, United States

2 days ago

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Role details

Contract type

Permanent contract

Employment type

Full-time (> 32 hours)

Experience level

Expert

Experience required

5 years minimum

Working hours

Regular working hours

Job source

www.thejobnetwork.com

Tech stack

Db2400 PHP (Programming Language) ASC X12 Standards Business Logic IBM System I Software as a Service Databases Data Structures IBM DB2 UN Electronic Data Interchange for Administration Commerce and Transport Middleware Embedded SQL

+9 more

IBM WebSphere MQ IBM RPG (Programming Language) IBM Websphere Application Server Python (Programming Language) Node.Js Reverse Engineering SQL Databases File Transfer Protocol (FTP) SOAPAPI

Job description

About the OpportunityZipStaff is seeking a Lead IBM i / AS400 Developer to take operational ownership of a proprietary port and logistics platform at a major port operations and marine terminal organization. The core system runs on IBM i and has grown alongside IBM WebSphere to support real-time container tracking, terminal yard management, dispatch, and automated B2B exchange. You will reverse-engineer the homegrown codebase, map WebSphere integration channels, become the primary SME, and then lead ongoing IBM i development, EDI modernization, performance work, and Tier-3 support. What You’ll Do:

Reverse-engineer homegrown RPG / CL programs and DB2 tables to map business rules, data structures, and custom workflows.
Maintain, configure, and expand IBM WebSphere middleware (MQ, Integration Bus / App Connect, B2B Integrator, or Partner Gateway) for automated EDI with shipping lines, customs, rail, and trucking.
Develop and update maps for maritime / logistics EDI sets, including 210, 214, 301, 310, 322, and 850 / 856.
Own system stability: failed EDI transmissions, spool / batch jobs, and emergency fixes.
Design REST / SOAP APIs, WebSphere messaging channels, and database connectors from the IBM i core to modern web / SaaS port tools.
Document undocumented business logic, architecture, DB2 schemas, and WebSphere routing so the platform is not a single point of failure.
Lead future IBM i development and act as the primary technical owner after onboarding.

Requirements

5+ years of hands-on IBM i (AS400 / iSeries) development.
Deep proficiency in RPG IV, RPGLE, free-format RPG, and legacy RPG III / RPG II.
Hands-on IBM WebSphere integration with IBM i (MQ, Integration Bus / App Connect, B2B Integrator, or Partner Gateway).
Strong CL / CLLE, DB2 for i, SQL/400, and embedded SQL.
Working knowledge of ANSI X12 and EDIFACT, translation mapping, and transport (AS2, FTP / SFTP, WebSphere MQ).
Proven ability to reverse-engineer complex, undocumented homegrown applications.
Ability to work on-site in Newark, NJ.
Must be legally authorized to work in the United States without sponsorship now or in the future.

Preferred Qualifications:

Port operations, container terminals, freight forwarding, warehousing, or TMS.
IBM i web enablement (Profound UI, Fresche / LANSA) or adjacent web skills (PHP, Python, Node.js).