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As400 Developer Jobs in Chicago, IL (NOW HIRING)

AS400 Developer Location: Chicago,IL Duration: 6 Months + Extension Bill Rate: $70/hour Job Type: C2C/1099 Contract Client: To Be Discussed Later Work Authorization: US-Citizen, H-1B, OPT-EAD, GC-EAD ...

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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 ...

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 ...

Georgia IT, Inc. is seeking an AS/400 Developer to work primarily on inventory and order ... Responsibilities : • Work on AS400 with expertise in I5250 and Presto for inventory and order ...

Senior Support Developer

Chicago, IL · On-site

$56.25 - $74.25/hr

Strong experience in an AS400 (IBM iSeries) environment. * Experience with COBOL, Java, CL/CLP, and ... Knowledge of DevOps practices. * Experience with iSeries Query and IBM i administration. * .NET ...

New

AS 400 Cobol

Schaumburg, IL · On-site

$49.50 - $67/hr

The role requires 6-8 years of experience in AS400 and COBOL. Qualifications : Required : • 6-8 Years of experience Company : Syntricate Technologies offers quality assurance, validation ...

... 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 ...

... 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 ...

... 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 ...

Facilitate the new hire process from ICIMS to the AS400, ensuring timely and accurate onboarding ... When you join Metropolis, you'll join a team of world-class product leaders and engineers, building ...

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As400 Developer information

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How much do as400 developer jobs pay per hour?

As of Sep 4, 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:

Infographic showing various As400 Developer job openings in Chicago, IL as of August 2026, with employment types broken down into 58% Full Time, and 42% Contract. Highlights an 81% In-person, 2% Hybrid, and 17% Remote job distribution, with an average salary of $117,735 per year, or $56.6 per hour.

$70/hr

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Posted 2 days ago

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Job description

Job Title: AS400 Developer

Location: Chicago,IL

Duration: 6 Months + Extension

Bill Rate: $70/hour

Job Type: C2C/1099 Contract

Client: To Be Discussed Later

Work Authorization: US-Citizen, H-1B, OPT-EAD, GC-EAD
Technology Requirements
Proficiency in IBM I-Series (AS/400) technologies: RPG IV (ILE), DB2/400, RPGLE, CLLE,
SQLRPGLE.
Experience with source code management/change control (for example, MKS).
Understanding of the domain's security implications.
Ability to transition abstract concepts into stable and supportable software solutions.
Ability to develop unbiased options and recommendations to technical problems and
unbiased comparisons.
Experience and understanding of production support and project engineering.
Excellent customer service and time management skills.
Extremely detail-oriented, fast learner, with the ability to handle multiple tasks.
Strong traits of decisiveness and judgment.

Equal Opportunity Employer:
We are an equal opportunity employer. All aspects of employment including the decision to hire, promote, discipline, or discharge, will be based on merit, competence, performance, and business needs. We do not discriminate on the basis of race, color, religion, marital status, age, national origin, ancestry, physical or mental disability, medical condition, pregnancy, genetic information, gender, sexual orientation, gender identity or expression, national origin, citizenship/ immigration status, veteran status, or any other status protected under federal, state, or local law