IntermediateSenior Informix & Legacy Systems Developer

Batavia, IL - USA

Monthly Salary: Not Disclosed

Posted on: 4 hours ago

Vacancies: 1 Vacancy

Job Summary

Role: Intermediate/Senior Informix & Legacy Systems Developer

Location- Batavia IL Local

Duration- 6Months

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

Role: Intermediate/Senior Informix & Legacy Systems Developer Location- Batavia IL Local W2 Duration- 6Months 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 infrastru...