iSeries Developer

Custom Business Solutions, Inc.; Bedford Park (IL); On-site; USD 90,000 - 120,000; Full time

Job summary

Custom Business Solutions, Inc. seeks an experienced iSeries Developer to perform development, analysis, and maintenance across key business applications on the AS/400 platform. The role focuses on modernization with SQL, APIs, web services, and AI-assisted tooling.

The ideal candidate is a motivated self-starter who can work independently and collaboratively within a team environment.

Qualifications

• Full lifecycle development experience from requirements to deployment.
• Strong knowledge of iSeries RPG and SQL integration.
• Understanding of Property & Casualty insurance principles.
• Excellent problem-solving and communication skills.
• Ability to work in a collaborative team environment.

Responsibilities

• Enhance and support core business applications on the iSeries (AS/400) using RPG IV/ILE and RPG Free Form.
• Collaborate with cross-functional teams to gather requirements and write functional specs.
• Perform code reviews, unit testing, and coordinate development/QA activities.
• Create technical design documentation for assigned projects.
• Implement and maintain development standards and deployment processes.
• Contribute to modernization via SQL, APIs, web services, and AI-assisted tools.
• Assist IT Help Desk with production issues to ensure timely resolution.
• Troubleshoot and resolve issues to maintain performance and reliability.

Skills

RPG IV/ILE

RPG Free Form

SQL (embedded SQL)

CL

iSeries environments

Insurance knowledge (P&C)

Problem-solving

Team collaboration

Education

Bachelor's degree in Computer Science or related field

Tools

Visual Studio Code

IBM i extensions

Job description

Position Overview

We are seeking an experienced iSeries Developer to perform development, analysis, and maintenance activities across several key business applications. This role will focus on enhancing and upgrading critical applications on the iSeries (AS/400) platform while contributing to modernization initiatives involving SQL, API and web service integrations, Visual Studio Code, and AI-assisted development tools.

The ideal candidate is a motivated self-starter who can work independently and collaboratively within a team environment.

Key Responsibilities

• Enhance and support core business applications using RPG IV/ILE and RPG Free Form.
• Collaborate with cross-functional teams to gather and analyze requirements and create functional specifications.
• Conduct code reviews, perform unit testing, and coordinate development and QA activities with IT team members.
• Create technical design documentation for assigned projects.
• Implement and maintain development standards, deployment processes, and procedures.
• Contribute to modernization efforts using SQL, APIs, web services, and AI-assisted development tools such as ChatGPT and Claude.
• Assist with IT Help Desk tickets related to production issues, working with business users and IT team members to ensure timely resolution.
• Troubleshoot and resolve issues in existing applications to maintain optimal performance and reliability.

Required Qualifications

• Proven experience delivering complex systems through the full development lifecycle, including requirements gathering, design, development, testing, and deployment.
• Strong knowledge of iSeries development environments, protocols, and programming languages, including RPG IV/ILE, RPG Free Form, SQL (including embedded SQL in RPG), and CL.
• Understanding of Property & Casualty (P&C) insurance principles and practices.
• Excellent problem-solving skills and attention to detail.
• Ability to work collaboratively within a team and communicate effectively with stakeholders and IT team members.

Preferred Qualifications

• Experience using Visual Studio Code with IBM i-related extensions.
• Bachelor's degree in Computer Science or a related field.