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As400 System Jobs in California (NOW HIRING)

Valley Power Systems

AS400 Operator

Rialto, CA

The AS400 Operator will be responsible for helping with AS400 Operations and Network Helpdesk, as ... Files, classifies and retrieves material in an established filing system or computer system.

Valley Power Systems, Inc.

AS400 Operator

Rialto, CA · On-site

The AS400 Operator will be responsible for helping with AS400 Operations and Network Helpdesk, as ... Files, classifies and retrieves material in an established filing system or computer system.

Jobtailor

Application Modernization Analyst

Stockton, CA · On-site

$90 - $120/hr

Experience with AS400 systems, C#/.NET applications, or legacy application modernization * Strong analytical and troubleshooting skills * Experience developing technical documentation, operational ...

THK AMERICA INC

Inside Sales Representative

Irvine, CA · On-site

$68K - $85K/yr

Proficient of keyboards, Microsoft Office (word, excel, powerpoint), AS400 system, Salesforce * Knowledge of THK products and sales process * Good organizational skills and ability to multitask under ...

Bentley Mills

RECEIVING GENERALIST

City Of Industry, CA · On-site

$20 - $22/hr

Update AS400 system with data obtained through cycle counts. e planning department as well, on an as needed basis. Responsible for department housekeeping and other duties as required to maintain the ...

Cambro

Inventory Control Clerk I

Huntington Beach, CA · On-site

$18.58 - $20/hr

Must have previous warehouse management system experience, i.e. AS400, SAP, Prism, etc. * Must possess a valid driver's license and not have more than two moving violations within the previous 12 ...

Cambro

Inventory Control Clerk I

Huntington Beach, CA

$18.58 - $20/hr

Must have previous warehouse management system experience, i.e. AS400, SAP, Prism, etc. * Must possess a valid driver's license and not have more than two moving violations within the previous 12 ...

Empire Workforce Solutions

Office Clerk

Compton, CA · On-site

$19/hr

Experience working with AS400 systems * Strong written and verbal communication skills * Excellent attention to detail and organizational abilities * Flexible schedule , including availability for ...

TriSearch

Assistant Credit Manager

Los Angeles, CA · Hybrid

$68K - $113K/yr

Monitor aging reports, resolve complex payment disputes, negotiate structured payment plans for high-risk accounts, and support cash applications in legacy ERP/AS400 systems. * Advanced Reporting:

JM Eagle

Asst Credit Manager

Los Angeles, CA

Collections & Accounts Receivable Management * Assist with processing cash applications and credit memos in AS400 system. * Review aging reports and partner with collection staff to improve past-due ...

JM Eagle

Asst Credit Manager

Los Angeles, CA · On-site

Collections & Accounts Receivable Management * Assist with processing cash applications and credit memos in AS400 system. * Review aging reports and partner with collection staff to improve past-due ...

Empire Workforce Solutions

Logistics Warehouse Lead

Compton, CA · On-site

$18.50 - $23.50/hr

Ensure accurate inventory control using WMS and AS400 systems. * Monitor workflow and implement process improvements to maximize productivity, quality, and efficiency. * Maintain compliance with all ...

JM Eagle

Asst Credit Manager

Los Angeles, CA · On-site

$68K - $113K/yr

Collections & Accounts Receivable Management * Assist with processing cash applications and credit memos in AS400 system. * Review aging reports and partner with collection staff to improve past-due ...

Cambro

MTC Forklift Operator II

Huntington Beach, CA

$18 - $21/hr

Experience with Prism, Intermec, and/or AS400 system PHYSICAL DEMANDS The physical demands described here are representative of those that must be met by an employee to successfully perform the ...

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All JobsAs400 System JobsAs400 System Jobs in California

As400 System information

See California salary details

$35.5K

$67.5K

$114.5K

How much do as400 system jobs pay per year?

As of Aug 31, 2026, the average yearly pay for as400 system in California is $67,541.00, according to ZipRecruiter salary data. Most workers in this role earn between $42,900.00 and $83,900.00 per year, depending on experience, location, and employer.

What is an AS400 system?

An AS400 System job typically involves managing, maintaining, and supporting IBM's AS400 (now IBM i) systems. Professionals in this role handle system administration, troubleshooting, backups, upgrades, and security management. They may also develop and maintain RPG, CL, or COBOL programs for business applications. AS400 system administrators or developers often work in industries like finance, manufacturing, and healthcare, where legacy IBM i systems are still widely used.

What does an AS400 system professional do?

AS400 System professionals are usually responsible for monitoring system performance, executing backups and recoveries, administering user access, and troubleshooting technical issues related to the AS400/iSeries platform. They frequently collaborate with application developers to support business software, implement system upgrades, and apply patches to ensure security and efficiency. Additionally, they often document configuration changes and provide technical support to end-users. The role involves balancing routine maintenance with urgent problem-solving, making adaptability and effective communication key to success.

What are the key skills and qualifications needed to thrive in the AS400 system position?

To thrive in an AS400 System role, you should have strong knowledge of IBM iSeries (AS400) systems administration, RPG/COBOL programming, and experience managing enterprise applications on this platform. Familiarity with tools such as IBM Navigator for i, Query/400, and certifications like IBM Certified System Administrator - IBM i are highly advantageous. Strong problem-solving abilities, attention to detail, and effective communication skills distinguish top performers in this position. These skills are essential to ensure system reliability, support critical business operations, and facilitate smooth collaboration with technical and non-technical teams.

Is AS400 still in demand?

AS400, now known as IBM i, remains in demand in industries that rely on legacy systems such as banking, manufacturing, and government. Many organizations seek professionals with skills in RPG, CL, and IBM i administration to maintain and upgrade these systems, which often require certifications and experience with integrated database environments.

Is the AS400 system still used?

The AS400 system, now known as IBM i, is still in use by many organizations for legacy applications and enterprise resource planning. Jobs for AS400 system administrators and developers continue to exist, especially in industries like finance and manufacturing that rely on its stability and security. Knowledge of RPG, CL, and IBM i hardware is valuable for these roles.

What are the As400 System job roles?

AS400 system job roles typically include System Administrator, Programmer, Developer, and Support Specialist. These roles involve managing the AS400 environment, developing and maintaining applications using RPG or COBOL, and ensuring system security and performance. Knowledge of IBM i operating system, CL programming, and database management are often required.

What are popular job titles related to As400 System jobs in California?

For As400 System jobs in California, the most frequently searched job titles are:

What job categories do people searching As400 System jobs in California look for?

The top searched job categories for As400 System jobs in California are:

What cities in California are hiring for As400 System jobs?

Cities in California with the most As400 System job openings:

As400 System jobs near you
Infographic showing various As400 System job openings in California as of August 2026, with employment types broken down into 100% Full Time. Highlights an 100% In-person job distribution, with an average salary of $67,541 per year, or $32.5 per hour.

AS400 Operator

Rialto, CA

Valley Power Systems
Trucking • 201 - 500 employees
Learn more about Valley Power Systemsexternal

Full-time

Re-posted 12 days ago

Job description

Position Overview:

The AS400 Operator will be responsible for helping with AS400 Operations and Network Helpdesk, as well as scanning documents electronically.

Principal Duties and Responsibilities (Essential Functions):

  • Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions.
  • Performs other AS400 operations as needed.
  • Helpdesk relief as needed.
  • Scanning and Indexing of Invoices, Pick Tickets, Vouchers, Repair Orders etc. **300 items per hour.
  • Verification of Invoices, Pick Tickets, Vouchers, Repair Orders etc. **300 items per hour.
  • Recognizing when the quality of the scanned image requires adjustments to scanner settings.
  • Files, classifies and retrieves material in an established filing system or computer system.
  • Performing necessary tracking data input tasks assigned to scanners.
  • Receives, screens and reviews documents for tasks.
  • Searches for and compiles information and data.
  • Makes copies of material as required.
  • Sorts and distributes mail when required.
  • Transmitting manual/computer checks.
  • Daily and monthly backups of network and AS400.
  • Printing of invoices that will be mailed out to the customer on a daily basis.
  • Running end of day reports.
  • Tracking, inventory and shipping of backup tapes for all branches.
  • Performs other duties as assigned.
  • Regular attendance is an essential function of the job.

Qualifications & Skills:

  • Must be highly detail-oriented and possesses a high degree of accuracy.
  • Ability to meet deadlines and prioritize.
  • General office experience including alpha and numeric filing.
  • Accurate, good with numbers.
  • Typing minimum of 45 wpm.
  • Knowledge of 10 key helpful.
  • Ability to work under minimal supervision. 
  • AS400 knowledge (Preferred)
  • Helpdesk experience (Preferred)

Education & Experience:

  • High School diploma or an equivalent combination of education and/or relevant experience.
  • Flexible hours Friday and Saturday

Requirements:

The physical demands described here are representative of those that must be met by an employee to successfully perform the essential functions of this job. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions.

While performing the duties of this job, the employee is regularly required to sit and talk or hear. The employee is occasionally required to stand; walk; reach with hands and arms; and stoop or kneel.  Specific vision abilities required by this job include close vision and the ability to adjust focus.

Work Environment:

The work environment characteristics described here are representative of those an employee encounters while performing the essential functions of this job. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions.

The noise level in the work environment is usually quiet, but within in Service, Warehouse or Production areas, the noise level may be loud.

Other Criteria:

  • Complies with Company policies and procedures.
  • Performs job safely with respect to others, property and to individual safety.
  • Works effectively with others in the Company to encourage teamwork and productivity.
  • We are drug free workplace that conducts pre-employment physical and drug screenings. We are regulated by the department of transportation and will be conducting random drug testing at regular intervals

EEO Statement

Valley and the Valley Power Systems Family of Companies is an equal opportunity employer. Qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability or protected veteran status.

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