Job Title AS400 Synon Sr Developer Relevant Experience (in Yrs) 15+ yrs Technical/Functional Skills * Strong functional knowledge of core PBM functions specifically core adjudication, pricing ...
Quick apply
Job Title AS400 Synon Sr Developer Relevant Experience (in Yrs) 15+ yrs Technical/Functional Skills * Strong functional knowledge of core PBM functions specifically core adjudication, pricing ...
I have an opportunity for "RPG / As400 Developer - Oak Brook, IL - Onsite" and I am looking for a candidate who can join Immediately if you are interested, reply to me with your updated resume or if ...
I have an opportunity for "RPG / As400 Developer - Oak Brook, IL - Onsite" and I am looking for a candidate who can join Immediately if you are interested, reply to me with your updated resume or if ...
AS400 Synon Engineer
Schaumburg, IL · On-site +1
AS400 Synon Engineer Must Have Technical/Functional Skills iSeries, SYNON, COBOL, AS400 (Mid-Range), ILE, COBOL/400, CLLE, SQL • Strong functional knowledge of core PBM functions specifically core ...
AS400 Synon Engineer
Schaumburg, IL · On-site +1
AS400 Synon Engineer Must Have Technical/Functional Skills iSeries, SYNON, COBOL, AS400 (Mid-Range), ILE, COBOL/400, CLLE, SQL • Strong functional knowledge of core PBM functions specifically core ...
Pennington, NJ * Chicago, IL -: Required Skills & Qualifications Hands-on experience with IBM i (AS400) systems administration Strong proficiency in AS400 programming (RPG, CL, SQL) Solid ...
Pennington, NJ * Chicago, IL -: Required Skills & Qualifications Hands-on experience with IBM i (AS400) systems administration Strong proficiency in AS400 programming (RPG, CL, SQL) Solid ...
... AS400 modules in a multi-tech. team environment Working on a Global Delivery Model and ability to communicate, track & work with offshore team COBOL Synon RPG Health Care background a plus Experience ...
... AS400 modules in a multi-tech. team environment Working on a Global Delivery Model and ability to communicate, track & work with offshore team COBOL Synon RPG Health Care background a plus Experience ...
Be Seen First
Programmer AS400
Park Ridge, IL · On-site
The Programmer will design, develop, maintain and support corporate software applications and EDI programs on the IBM iSeries (AS/400) using RPG/LE, SQL and CL. The Programmer will be responsible for ...
Quick apply
Be Seen First
Programmer AS400
Park Ridge, IL · On-site
The Programmer will design, develop, maintain and support corporate software applications and EDI programs on the IBM iSeries (AS/400) using RPG/LE, SQL and CL. The Programmer will be responsible for ...
Be Seen First
Programmer AS400
Park Ridge, IL · On-site
The Programmer will design, develop, maintain and support corporate software applications and EDI programs on the IBM iSeries (AS/400) using RPG/LE, SQL and CL. The Programmer will be responsible for ...
Quick apply
Be Seen First
Programmer AS400
Park Ridge, IL · On-site
The Programmer will design, develop, maintain and support corporate software applications and EDI programs on the IBM iSeries (AS/400) using RPG/LE, SQL and CL. The Programmer will be responsible for ...
DevOps & Site Reliability Engineer (Digital)
Deerfield, IL · On-site
$110K - $150K/yr
Proficiency in Payment Switch BASE24 EPS, C++, AS400 and Python is also added advantage * Domain, Cloud & Platform Engineering * Must have domain experience on Retail Point of Sale/Payment Systems ...
DevOps & Site Reliability Engineer (Digital)
Deerfield, IL · On-site
$110K - $150K/yr
Proficiency in Payment Switch BASE24 EPS, C++, AS400 and Python is also added advantage * Domain, Cloud & Platform Engineering * Must have domain experience on Retail Point of Sale/Payment Systems ...
... AS400, and SAP, and SOL Server. - Experience developing ETL processes using XML inputs and output to structured databases. - Experience with very large database management environments as it pertains ...
... AS400, and SAP, and SOL Server. - Experience developing ETL processes using XML inputs and output to structured databases. - Experience with very large database management environments as it pertains ...
DevOps & Site Reliability Engineer (Digital)
Deerfield, IL · On-site
$110K - $150K/yr
Proficiency in Payment Switch BASE24 EPS, C++, AS400 and Python is also added advantage * Domain, Cloud & Platform Engineering * Must have domain experience on Retail Point of Sale/Payment Systems ...
DevOps & Site Reliability Engineer (Digital)
Deerfield, IL · On-site
$110K - $150K/yr
Proficiency in Payment Switch BASE24 EPS, C++, AS400 and Python is also added advantage * Domain, Cloud & Platform Engineering * Must have domain experience on Retail Point of Sale/Payment Systems ...
Sales Administration Rep
Schaumburg, IL · On-site
$21.64 - $29.47/hr
Request pricing (and/or) approval drawings for customers using AS400 system and create quotes for customers by using the quotation database on Lotus Notes * Assist DM/ Engineers to enter in AS400 ...
Sales Administration Rep
Schaumburg, IL · On-site
$21.64 - $29.47/hr
Request pricing (and/or) approval drawings for customers using AS400 system and create quotes for customers by using the quotation database on Lotus Notes * Assist DM/ Engineers to enter in AS400 ...
Sales Administration Rep
Schaumburg, IL · On-site
$21.64 - $29.47/hr
Request pricing (and/or) approval drawings for customers using AS400 system and create quotes for customers by using the quotation database on Lotus Notes * Assist DM/ Engineers to enter in AS400 ...
Sales Administration Rep
Schaumburg, IL · On-site
$21.64 - $29.47/hr
Request pricing (and/or) approval drawings for customers using AS400 system and create quotes for customers by using the quotation database on Lotus Notes * Assist DM/ Engineers to enter in AS400 ...
DevOps & Site Reliability Lead - Retail Devops (POS, payment systems)
Deerfield, IL · On-site
$58 - $77/hr
... AS400 and Python is also added advantage • Must have domain experience on Retail Point of Sale ... experience with Azure DevOps and CI/CD pipeline architecture • Strong scripting skills ...
DevOps & Site Reliability Lead - Retail Devops (POS, payment systems)
Deerfield, IL · On-site
$58 - $77/hr
... AS400 and Python is also added advantage • Must have domain experience on Retail Point of Sale ... experience with Azure DevOps and CI/CD pipeline architecture • Strong scripting skills ...
Senior Software Engineer, Warehousing
Northbrook, IL · On-site
$120 - $180/hr
... core systems (AS400) and the BY Cloud WMS. Write clean, tested code to optimize data ... Perform software programming across multiple technologies to construct and modify applications ...
Senior Software Engineer, Warehousing
Northbrook, IL · On-site
$120 - $180/hr
... core systems (AS400) and the BY Cloud WMS. Write clean, tested code to optimize data ... Perform software programming across multiple technologies to construct and modify applications ...
IBM iSeries System Administrator
Cary, IL · On-site
$60K - $100K/yr
... to programming or infrastructure teams * Work with vendors and internal IT staff to maintain system hardware and software Who We're Looking For * 3+ years of experience operating IBM i / AS400 ...
IBM iSeries System Administrator
Cary, IL · On-site
$60K - $100K/yr
... to programming or infrastructure teams * Work with vendors and internal IT staff to maintain system hardware and software Who We're Looking For * 3+ years of experience operating IBM i / AS400 ...
IBM iSeries System Administrator
Cary, IL · On-site
... to programming or infrastructure teams * Work with vendors and internal IT staff to maintain system hardware and software Who We're Looking For * 3+ years of experience operating IBM i / AS400 ...
IBM iSeries System Administrator
Cary, IL · On-site
... to programming or infrastructure teams * Work with vendors and internal IT staff to maintain system hardware and software Who We're Looking For * 3+ years of experience operating IBM i / AS400 ...
IBM iSeries System Administrator
Cary, IL · On-site
$60K - $100K/yr
... programming or infrastructure teamsWork with vendors and internal IT staff to maintain system hardware and softwareWho We're Looking For3+ years of experience operating IBM i / AS400 / iSeries ...
Quick apply
IBM iSeries System Administrator
Cary, IL · On-site
$60K - $100K/yr
... programming or infrastructure teamsWork with vendors and internal IT staff to maintain system hardware and softwareWho We're Looking For3+ years of experience operating IBM i / AS400 / iSeries ...
Ability to supervise and co-ordinate system and UAT testing Experience with QA procedures Experience with documentation / issues tracking tools AS400 commands and CL or CLLE / AS400 query or SQL ...
Ability to supervise and co-ordinate system and UAT testing Experience with QA procedures Experience with documentation / issues tracking tools AS400 commands and CL or CLLE / AS400 query or SQL ...
Quality Engineer
Batavia, IL · On-site
$75K - $85K/yr
The Quality Assurance Engineer (QAE) supports new product launches, engineering changes, and pilot ... AS400, SolidWorks, and Mattec experience preferred. * The ability to lift up to 50 pounds. The ...
Quality Engineer
Batavia, IL · On-site
$75K - $85K/yr
The Quality Assurance Engineer (QAE) supports new product launches, engineering changes, and pilot ... AS400, SolidWorks, and Mattec experience preferred. * The ability to lift up to 50 pounds. The ...
Quality Engineer
Batavia, IL · On-site
$75K - $85K/yr
The Quality Assurance Engineer (QAE) supports new product launches, engineering changes, and pilot ... AS400, SolidWorks, and Mattec experience preferred. * The ability to lift up to 50 pounds. The ...
Quality Engineer
Batavia, IL · On-site
$75K - $85K/yr
The Quality Assurance Engineer (QAE) supports new product launches, engineering changes, and pilot ... AS400, SolidWorks, and Mattec experience preferred. * The ability to lift up to 50 pounds. The ...
As400 Developer information
See Chicago, IL salary details
$39.90 - $42.42
5% of jobs
$42.42 - $44.95
1% of jobs
$44.95 - $47.47
0% of jobs
$47.47 - $49.99
13% of jobs
$51.89 is the 25th percentile. Wages below this are outliers.
$49.99 - $52.52
8% of jobs
$52.52 - $55.04
11% of jobs
The median wage is $57.35 / hr.
$55.04 - $57.56
13% of jobs
$60.09 is the 75th percentile. Wages above this are outliers.
$57.56 - $60.09
24% of jobs
$60.09 - $62.61
13% of jobs
$62.61 - $65.13
8% of jobs
$65.13 - $67.66
4% of jobs
$39
$56
$67
How much do as400 developer jobs pay per hour?
As of Aug 24, 2026, the average hourly pay for as400 developer in Chicago, IL is $56.60, according to ZipRecruiter salary data. Most workers in this role earn between $51.78 and $60.24 per hour, depending on experience, location, and employer.
What does an AS400 developer do?
A typical day for an AS400 Developer involves writing, testing, and troubleshooting code in RPG, COBOL, or CL for business-critical applications running on IBM iSeries systems. Developers often work closely with business analysts, system administrators, and other IT professionals to gather requirements, implement system enhancements, and ensure data integrity within DB2 databases. Daily tasks may also include resolving production issues, performing regular maintenance, and participating in code reviews or deployment planning. Collaborative work and clear communication are common, as developers typically play an integral role in supporting both legacy and modernized business processes.
What are the key skills and qualifications needed to thrive as an AS400 developer?
To thrive as an AS400 Developer, you need strong skills in RPG, COBOL, or CL programming languages, knowledge of IBM iSeries/AS400 systems, and typically a degree in computer science or related field. Familiarity with DB2 databases, SQL, and tools like Turnover or Aldon for change management and version control is highly valued, and certifications in IBM technologies are beneficial. Strong problem-solving abilities, attention to detail, and effective communication help developers collaborate with cross-functional teams and resolve technical issues efficiently. These competencies ensure reliable business application support, seamless integration with enterprise systems, and success in maintaining legacy environments.
How much do AS400 developers make?
AS400 developers typically earn between $70,000 and $110,000 annually, depending on experience, location, and certifications. Senior roles or those with specialized skills in RPG or CL programming may have higher salaries. Compensation can also vary based on the industry and company size.
How to become an AS400 developer?
To become an AS400 developer, you should gain proficiency in IBM i (AS/400) systems, learn programming languages such as RPG, COBOL, or CL programming, and develop skills in database management and system administration. Earning relevant certifications and gaining experience through training or entry-level positions can also enhance your qualifications.
Is AS400 still in demand?
AS400 developers remain in demand in industries that rely on legacy systems, such as banking and manufacturing, where IBM i environments are prevalent. Many organizations seek professionals skilled in RPG, CL, and IBM i administration to maintain and upgrade these systems, though the overall demand has decreased with the rise of modern technologies.
What are the most commonly searched types of As400 Developer jobs in Chicago, IL?
The most popular types of As400 Developer jobs in Chicago, IL are:
What are popular job titles related to As400 Developer jobs in Chicago, IL?
For As400 Developer jobs in Chicago, IL, the most frequently searched job titles are:
What job categories do people searching As400 Developer jobs in Chicago, IL look for?
The top searched job categories for As400 Developer jobs in Chicago, IL are:
Contractor
Re-posted 22 days ago
Job description
Job Title AS400 Synon Sr Developer
Relevant Experience
(in Yrs) 15+ yrs
Technical/Functional Skills • Strong functional knowledge of core PBM functions specifically core adjudication, pricing, accumulators, MED D Pricing, benefit plan, patient pay and regulations
• 15+ years of hands-on coding experience in CA/2E (Synon) including programming, array handling, commit control
• 8+ years of hands-on coding experience in COBOL AS400 and/or Cobol ILE
• Experience working with ACMS/MOM
• Strong exposure to DB2400
Must have Skills - iSeries, SYNON, COBOL, AS400 (Mid-Range), ILE, COBOL/400, CLLE, SQL
Experience Required Yes
Roles & Responsibilities
• Analyze and understand the functional and technical requirements.
• Work with business and capability teams to discuss and refine the requirements.
• Ability to guide the team and do hands-on development.
• Partner with team members to build robust, efficient, effective solutions.
• Identify opportunities to fine-tune and optimize applications.
• Participate in Agile/Scrum development process.
• Lead team in an onshore/offshore model
• Work in a team focused on continuous integration, improvement and learning
• Contribute to developing the technology roadmap for the team both functionally and technically
• Experience of coordinating with the client for requirement clarification and solution discussions
Generic Managerial Skills Required
Education Bachelor’s Degree
Master’s is a plus
Relevant Experience
(in Yrs) 15+ yrs
Technical/Functional Skills • Strong functional knowledge of core PBM functions specifically core adjudication, pricing, accumulators, MED D Pricing, benefit plan, patient pay and regulations
• 15+ years of hands-on coding experience in CA/2E (Synon) including programming, array handling, commit control
• 8+ years of hands-on coding experience in COBOL AS400 and/or Cobol ILE
• Experience working with ACMS/MOM
• Strong exposure to DB2400
Must have Skills - iSeries, SYNON, COBOL, AS400 (Mid-Range), ILE, COBOL/400, CLLE, SQL
Experience Required Yes
Roles & Responsibilities
• Analyze and understand the functional and technical requirements.
• Work with business and capability teams to discuss and refine the requirements.
• Ability to guide the team and do hands-on development.
• Partner with team members to build robust, efficient, effective solutions.
• Identify opportunities to fine-tune and optimize applications.
• Participate in Agile/Scrum development process.
• Lead team in an onshore/offshore model
• Work in a team focused on continuous integration, improvement and learning
• Contribute to developing the technology roadmap for the team both functionally and technically
• Experience of coordinating with the client for requirement clarification and solution discussions
Generic Managerial Skills Required
Education Bachelor’s Degree
Master’s is a plus