Intermediate/Senior Informix & Legacy Systems Developer
Contract W2
Travel Required
On-site
$55/hr
Cliff Services Inc
Fitment
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Job Details
Skills
- Informix
Summary
Role: Intermediate/Senior Informix & Legacy Systems Developer
Location- Batavia, IL Local
W2
Duration- 6+Months
Position Overview
We are seeking a technical specialist with deep expertise in legacy IBM/Informix platforms. This role is critical to supporting and modernizing our legacy infrastructure, specifically focusing on HP-UX and IBM AIX environments. You will be responsible for maintaining mission-critical ERP, supply chain, and warehouse management systems while driving technical performance optimizations.
Key Responsibilities
System Modernization & Design: Collaborate with cross-functional teams to design and implement robust solutions that bridge legacy logic with modern requirements (e.g., migrating Informix 4GL to Genero BDL).
Legacy Maintenance: Write and optimize clean, maintainable code in Informix 4GL, Genero BDL, and Unix Shell Scripting (Korn, Awk).
Technical Troubleshooting: Resolve complex application issues and database performance bottlenecks using utilities like oncheck and set explain.
Deployment & Testing: Lead integration, UAT, and performance testing activities to ensure high-quality deployments with minimal business disruption.
Support & Documentation: Manage incidents and work orders escalated from the Service Desk, adhering to established SLAs, and maintain comprehensive technical documentation.
Required Technical Skills
Primary Languages: Expert-level Informix 4GL, Genero BDL, and SQL.
Secondary Languages: Proficiency in Java, Python, or Perl for integration and modern application support.
Database Management: Advanced knowledge of IBM Informix Dynamic Server (IDS); familiarity with SQL Server, Oracle, or Snowflake is a plus.
Operating Systems: Mastery of Unix-based systems (HP-UX, IBM AIX, Linux) and Windows environments.
Integrations: Understanding of EDI (810, 820), XML, and API integration (RESTful/SOAP).
Version Control: Hands-on experience with Git, GitHub, or GitLab.
Preferred Domain Knowledge
Experience with ERP Supply Chain concepts: Order creation, Pick-Pack-Ship, Invoicing, and Bill of Materials (BOM).
Familiarity with Warehouse Management Systems (WMS) and manufacturing workflows.
Role & Project Scope
Core Objective: Support and modernize a mission-critical Legacy ERP platform while expediting its integration with Salesforce and e-commerce platforms.
Key Responsibilities:
Directly manage Informix 4GL development and maintenance.
Lead API build-out and integration projects alongside key technical stakeholders.
Operate within a Unix/Linux environment.
Team Dynamics: Small, lean team consisting of one onsite resource and three offshore members; requires daily coordination with the offshore team.
Candidate Requirements
Technical Expertise: Minimum 5 years of experience on the Informix legacy platform (specifically 4GL).
Domain Knowledge: Strong business understanding of Supply Chain workflows and operations.
Technical Environment: Proficiency in Unix/Linux and API development.
Soft Skills: Exceptional communication skills to effectively collaborate with and guide offshore team members.
Please contact
Employers have access to artificial intelligence language tools (“AI”) that help generate and enhance job descriptions and AI may have been used to create this description. The position description has been reviewed for accuracy and Dice believes it to correctly reflect the job opportunity.
- Dice Id: 91140876
- Position Id: 2026-178/2634
- Posted 2 days ago
Company Info
Cliff Services Inc. is an IT services and consulting company into planning and implementing cutting-edge IT business solutions and services for various business problems, in retail, healthcare, finance, education, food and various other industries. With our vast technology and industry expertise we provide scalable business solutions and assist our clients in achieving their business objectives with the use of technology.
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