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As400 Testing Jobs (NOW HIRING)

Diverse Lynx

Mainframe Developer/ AS400

Plano, TX · On-site

$47 - $60.50/hr

... testing, and production support for existing systems. • Work with batch jobs, file processing ... AS400/iSeries technologies preferred. • Knowledge of batch processing, job scheduling, and file ...

Spar Information Systems

AS400 Developer

Issaquah, WA · On-site

AS400 Developer Issaquah, WA - onsite The opportunity: Analyzes and develops iSeries code that ... Performs code reviews, unit testing, coordinates with development team members on development, and ...

Guru Schools

iSeries/AS400 Developer

Issaquah, WA · On-site

Overview: iSeries/AS400 Developer Issaquah, WA (5 Days onsite)Long TermMust Have SkillsProficiency ... unit testing, coordinates with development team members on development, and QA tasks. • Adheres ...

Kyndryl

AS400 /IBM i Infrastructure Analyst

Phoenix, AZ · On-site

$63K - $121K/yr

The Role As the AS400 (IBM i) Infrastructure Analyst you will be responsible for the administration ... Execute backup and recovery procedures and conduct regular restore testing. Incident, Problem ...

Kyndryl

AS400 /IBM i Infrastructure Analyst

Phoenix, AZ

$63K - $121K/yr

The Role As the AS400 (IBM i) Infrastructure Analyst you will be responsible for the administration ... Execute backup and recovery procedures and conduct regular restore testing. Incident, Problem ...

Kyndryl

AS400 /IBM i Infrastructure Analyst

Phoenix, AZ · On-site

$63K - $121K/yr

The Role As the AS400 (IBM i) Infrastructure Analyst you will be responsible for the administration ... Execute backup and recovery procedures and conduct regular restore testing. Incident, Problem ...

Kyndryl

AS400 /IBM i Infrastructure Analyst

Phoenix, AZ · On-site

$63K - $121K/yr

The Role As the AS400 (IBM i) Infrastructure Analyst you will be responsible for the administration ... Execute backup and recovery procedures and conduct regular restore testing. Incident, Problem ...

Kyndryl

AS400 /IBM i Infrastructure Analyst

Phoenix, AZ · On-site

$63K - $121K/yr

The Role As the AS400 (IBM i) Infrastructure Analyst you will be responsible for the administration ... Execute backup and recovery procedures and conduct regular restore testing. Incident, Problem ...

Kyndryl

AS400 /IBM i Infrastructure Analyst

Phoenix, AZ · On-site

$63K - $121K/yr

The Role As the AS400 (IBM i) Infrastructure Analyst you will be responsible for the administration ... Execute backup and recovery procedures and conduct regular restore testing. Incident, Problem ...

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All JobsAs400 Testing Jobs

As400 Testing information

What are some typical responsibilities and challenges associated with an AS400 Testing position?

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 is an AS400 Testing job?

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 key skills and qualifications needed to thrive in the As400 Testing position, 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 June 2026, with employment types broken down into 100% As Needed. Highlights an 96% Physical, 2% Hybrid, and 2% Remote job distribution.
iSeries/AS400 Developer - Issaquah, WA

iSeries/AS400 Developer - Issaquah, WA

Software Technology Inc

Issaquah, WA • On-site

Other

Posted 14 days ago

Job description

iSeries/AS400 Developer

Mandatory Areas Must Have Skills – iSeries/AS400 Developer Skill 1 – 8+ Years of Exp in iSeries/AS400 Development Skill 2 – 8+ Years of Exp in Creating new programs using RPG, RPG ILE, SQLRPGLE, and Control Language (CLP/CLLE) Skill 3 – 3+ Years of Exp in SQL

iSeries/AS400 Developer - Issaquah, WA

The developer will be working with one of the leading Wholesale retailers in the US. The ideal candidate should have the ability to work creatively and analytically in a problem-solving environment. The ideal candidate must possess excellent written and verbal communication skills with the ability and know-how to collaborate effectively with domain experts and the IT leadership team.

Responsibilities:

  • Analyzes and develops iSeries code that supports various applications in the Retail Domain.
  • Creates functional specifications for applications supported using standard practices, processes, and procedures.
  • Performs code reviews, unit testing, coordinates with development team members on development, and QA tasks.
  • Adheres to the client’s IS division development standards and deployment processes and procedures.
  • Collaborates with the Product Owner, business area, team members, and QA to ensure requirements are clearly defined, understood, and documented.
  • Participates in development estimation, deployment, and release planning to ensure delivery of solutions.
  • Responsible for 2nd level support resolution of daily incident tickets, creation of KB articles for 1st level support, and provide on-call support.
  • Perform peer reviews on source code to ensure reuse, scalability, and the use of best practices.
  • Participate in collaborative technical discussions that focus on software user experience, design, architecture, and development.

Requirements:

Must-Have:

  • Excellent programming skills on the iSeries platform – Analyze and Create new programs using RPG, RPG ILE, SQLRPGLE, and Control Language (CLP/CLLE).
  • Very good knowledge of SQL concepts – Analyze and modify complex SQL queries, embedded SQL in SQLRPGLE, Cursor programming, SQL Sprocs.
  • Database Concepts – Create and Analyze Physical files, Logical Files, SQL tables, Indexes, Views, Stored procedures.
  • Good working knowledge in screen programming – Display Files, Subfiles, and Printer files.
  • Document business rules effectively and should be able to create data mapping documents after analyzing program flows and data flows.
  • ILE Programming – Analyze and Create program modules, binding directories, service programs.
  • Working knowledge of Message Queue (MQ), MQ Trigger, and embedding XML tags in RPG Programs.
  • Good communication skills and the job will involve owning a project task completely based on the communication with the analysts at the client site.

Good to Have:

  • Good working knowledge in Turnover – the code configuration management tool.
  • Good working knowledge in X- Analysis – cross-reference tool for iSeries.
  • Knowledge of Triggers, Message Queuing for inter-program/ inter-system communication.
  • ROBOT job scheduler – knowledge in creating and setting up scheduled jobs in the iSeries.
  • Knowledge of normalized, denormalized tables, Star Schema databases.
  • Working knowledge on iSeries Navigator – to run queries and analyze the performance of SQL queries.
  • Knowledge in the Retail Domain especially in areas like Merchandising, Warehouse Management, Distribution, etc.

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