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As400 Testing Jobs (NOW HIRING)

Damco Solutions

AS400 Consultant

Damco Solutions is a company seeking an AS400 Consultant. The role involves hands-on experience ... testing and implementation. • Good verbal, written, and visual communication ability. • ...

NAVA Software Solutions

AS400 Admin

Mebane, NC · On-site

AS400 Admin Location: Mebane, NC (5 Days Onsite) Duration: 6-12 months Key Responsibilities ... Participate in disaster recovery planning and testing. Qualifications: * Bachelor's degree in ...

Cayuse Holdings

Sr AS400 Developer

King Of Prussia, PA · Hybrid

$60 - $65/hr

Overview Job Title: Sr AS400 Developer Location: Hybrid - King of Prussia, PA (4 days onsite/1 day ... Perform code reviews, unit testing, and defect fixes. * Work on enhancements, maintenance, and ...

Cayuse Holdings

Sr AS400 Developer

King Of Prussia, PA · On-site

$60 - $65/hr

Overview Job Title: Sr AS400 Developer Location: Hybrid - King of Prussia, PA (4 days onsite/1 day ... Perform code reviews, unit testing, and defect fixes. * Work on enhancements, maintenance, and ...

Cayuse Holdings

Sr AS400 Developer

King Of Prussia, PA · Hybrid

$60 - $65/hr

Job Title: Sr AS400 Developer Location: Hybrid - King of Prussia, PA (4 days onsite/1 day remote ... Perform code reviews, unit testing, and defect fixes. * Work on enhancements, maintenance, and ...

Cayuse Holdings

Sr AS400 Developer

King Of Prussia, PA · On-site

$82.66 - $89.54/hr

Overview JobTitle: Sr AS400 Developer Location: Hybrid - King of Prussia, PA (4 days onsite/1 day ... Perform code reviews, unit testing, and defect fixes. * Work on enhancements, maintenance, and ...

UNAVAILABLE

Sr AS400 Developer

King Of Prussia, PA · On-site

$82.66 - $89.54/hr

Overview JobTitle: Sr AS400 Developer Location: Hybrid - King of Prussia, PA (4 days onsite/1 day ... Perform code reviews, unit testing, and defect fixes. * Work on enhancements, maintenance, and ...

TestingXperts

MQ Series with AS400

Monroeville, PA · On-site

My name is Suneetha from Testing Xperts, we are a global staffing, consulting and technology ... MQ Series with AS400 Location: Monroeville, PA Must Have Skills (Top 3 technical skills only) * 1. ...

Valley Power Systems

AS400 Operator

Rialto, CA · On-site

The AS400 Operator will be responsible for helping with AS400 Operations and Network Helpdesk, as ... We are regulated by the department of transportation and will be conducting random drug testing at ...

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 ... We are regulated by the department of transportation and will be conducting random drug testing at ...

Atria Group LLC

Sr. AS400 Developer

Milwaukee, WI

... testing, integration, and implementation, and management consulting services to various clients ... Hands on experience in AS400 technologies. COBOL knowledge is primarily looked for * Minimum 6-7 ...

TestingXperts

MQ Series with AS400

Jersey City, NJ · On-site

Company Description TestingXperts is a Specialist QA & Software Testing Company, and an Independent ... MQ Series with AS400 Location: Basking Ridge, NJ Duration: 6+ Months Job Details: Contribute in ...

3B Staffing LLC

AS400/iSeries Engineer

Bend, OR · On-site

Minimum of 5 years' technical iSeries AS400 and data integration experience * Demonstrated moderate ... Experience with testing software such as Testbench * Experience with iSeries 3rd party applications ...

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As400 Testing information

What is an AS400 Testing?

An AS400 Testing job involves evaluating applications running on the IBM AS400 (now IBM i) platform to ensure functionality, performance, and security. Testers work with RPG, COBOL, CL, and DB2-based applications, executing test cases, identifying bugs, and validating system outputs. They use manual and automated testing techniques, including unit testing, system testing, and regression testing. The role requires knowledge of AS400 commands, database structures, and business logic implementation.

What are the typical responsibilities and challenges of AS400 Testing?

AS400 Testing professionals are responsible for designing and executing test cases, validating data integrity, and ensuring that business applications on the AS/400 platform run as intended. A common challenge in this role is working with complex legacy code and systems that may lack thorough documentation, which requires testers to be resourceful and detail-oriented. Testers also collaborate closely with developers, business analysts, and end-users to understand requirements, troubleshoot issues, and verify fixes. The work environment often involves both independent analysis and teamwork, and there's ample opportunity to develop expertise in legacy modernization projects or transition into test lead or quality assurance roles.

What are the key skills and qualifications needed for AS400 Testing, and why are they important?

To thrive in AS400 Testing, you need a solid understanding of IBM AS/400 (iSeries) environments, RPG/COBOL programming languages, and knowledge of software testing methodologies. Familiarity with tools such as IBM Rational, Selenium, or other test automation frameworks, along with ISTQB certification, is often beneficial. Strong analytical thinking, problem-solving abilities, and clear communication skills help testers collaborate effectively and report findings. These competencies ensure the delivery of robust, high-quality business applications on legacy systems, minimizing risks and defects.

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As400 Testing jobs near you
Infographic showing various As400 Testing job openings in the United States as of August 2026, with employment types broken down into 1% As Needed, 85% Full Time, 10% Part Time, 3% Contract, and 1% Nights. Highlights an 88% Physical, 2% Hybrid, and 10% Remote job distribution.

AS400 Consultant

Damco Solutions

Remote

Full-time

Re-posted 16 days ago

Job description

Job Summary:
Damco Solutions is a company seeking an AS400 Consultant. The role involves hands-on experience with i-Series (AS400) and requires excellent knowledge of programming languages, database management, and production support.
Responsibilities:
• Hands-on experience in i-Series (AS400).
• Excellent knowledge of programming languages – RPGLE CLLE including debugging (Interactive Batch both).
• In-depth knowledge of SQL400, Database DB2, AS400 components like - Reports, Display filesSub files, Batch jobs.
• Candidate must have prior experience in Production support nature of work as well as experience in application development, testing and implementation.
• Good verbal, written, and visual communication ability.
• Experience in Supply chain Manufacturing will be preferred.
• Experience supporting a multi-application integrated environment.
• Experience with ServiceNow or similar ticketing tool.
Qualifications:
Required:
• Hands-on experience in i-Series (AS400).
• Excellent knowledge of programming languages – RPGLE CLLE including debugging (Interactive Batch both).
• In-depth knowledge of SQL400, Database DB2, AS400 components like - Reports, Display filesSub files, Batch jobs.
• Candidate must have prior experience in Production support nature of work as well as experience in application development, testing and implementation.
• Good verbal, written, and visual communication ability.
• Experience supporting a multi-application integrated environment.
• Experience with ServiceNow or similar ticketing tool.
Preferred:
• Experience in Supply chain Manufacturing will be preferred.
Company:
Damco Solutions is a provider of IT solutions, services, and products. Founded in 1996, the company is headquartered in Plainsboro, USA, with a team of 1001-5000 employees. The company is currently Late Stage.

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