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As400 Programmer Jobs in Washington (NOW HIRING)

M.C. Dean, Inc

Accounts Payable 2 - Tysons, VA

Tysons, VA · On-site

$19.50 - $24.50/hr

Our people are passionate about engineering innovation that improves lives and drives impactful ... Accessing financial data within AS400 and internal software systems to answer general questions as ...

M.C. Dean, Inc

Accounts Payable 1 - Tysons, VA

Tysons, VA · On-site

$21.07 - $26.34/hr

Our people are passionate about engineering innovation that improves lives and drives impactful ... Accessing financial data within AS400 and internal software systems to answer general questions as ...

M.C. Dean, Inc

Project Controls, Staff

Bethesda, MD · On-site

$90K - $113K/yr

Our people are passionate about engineering innovation that improves lives and drives impactful ... AS400 (internal) CMMS software * Primavera P6 software We offer an excellent benefits package ...

M.C. Dean, Inc

Project Controls, Staff

Manassas, VA · On-site

$90K - $113K/yr

Our people are passionate about engineering innovation that improves lives and drives impactful ... AS400 (internal) CMMS software * Primavera P6 software Abilities: * Exposure to computer screens ...

M.C. Dean, Inc

Project Controls, Associate

Bethesda, MD · On-site

$75K - $94K/yr

Our people are passionate about engineering innovation that improves lives and drives impactful ... AS400 (internal)CMMS software * Primavera P6 software We offer an excellent benefits package ...

M.C. Dean, Inc

Project Scheduler 1 - Tysons VA

Tysons, VA · On-site

$75K - $113K/yr

Our people are passionate about engineering innovation that improves lives and drives impactful ... AS400 (internal)CMMS software * Primavera P6 software We offer an excellent benefits package ...

All JobsAs400 Programmer JobsAs400 Programmer Jobs in Washington

As400 Programmer information

See Washington salary details

$112.1K

$116.1K

$118.9K

How much do as400 programmer jobs pay per year?

As of Aug 3, 2026, the average yearly pay for as400 programmer in Washington is $116,091.00, according to ZipRecruiter salary data. Most workers in this role earn between $114,400.00 and $117,800.00 per year, depending on experience, location, and employer.

What are AS400 Programmers?

AS400 Programmers are IT professionals who specialize in developing, maintaining, and supporting software applications on the IBM AS/400 (now IBM i) platform. They use programming languages like RPG, COBOL, and CL to write and troubleshoot code for business applications, often in industries such as finance, manufacturing, and logistics. Their work involves analyzing user requirements, designing solutions, and ensuring the stability and efficiency of AS400-based systems.

What Is an AS/400 Programmer?

An AS/400 programmer is responsible for the development and maintenance of computer software based on the IBM operating system. Your duties and responsibilities in this career include programming and testing code for applications and software, either independently or for a company. You may also create Software-as-a-service (SaaS) applications. If you work as an in-house programmer for a company, you can either work alone or as part of a team, so depending on the position, communication skills may be crucial. The AS/400 programmer career field also has opportunities for remote work.

What are the key skills and qualifications needed to thrive as an AS400 Programmer, and why are they important?

To thrive as an AS400 Programmer, you need strong programming skills in RPG, COBOL, or CL, along with a solid understanding of IBM iSeries/AS400 systems and a relevant computer science degree or equivalent experience. Familiarity with tools such as IBM i Navigator, Query/400, and version control systems, as well as experience with database management (DB2), is typically required. Attention to detail, problem-solving abilities, and effective communication skills help you excel in troubleshooting and collaborating with business users. These competencies are essential for maintaining legacy systems, ensuring data integrity, and supporting critical business operations.

What are some common challenges faced by AS400 Programmers when maintaining legacy systems?

AS400 Programmers often encounter challenges such as integrating legacy IBM i systems with modern applications, troubleshooting undocumented or outdated code, and ensuring continued security compliance. Collaboration with business users and IT teams is essential to understand evolving requirements and minimize disruptions during updates or migrations. Staying current with both legacy and new technologies helps programmers bridge the gap between old systems and today’s business needs.
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As400 Programmer jobs near you
Infographic showing various As400 Programmer job openings in Washington as of July 2026, with employment types broken down into 81% Full Time, 16% Part Time, 2% Contract, and 1% Nights. Highlights an 94% Physical, 3% Hybrid, and 3% Remote job distribution, with an average salary of $116,091 per year, or $55.8 per hour.

Software Engineer with Facets

ETS LLC

Mclean, VA • On-site

Other

This job post has expired today. Applications are no longer accepted.

Job description

Software Engineer:

No of Positions - Multiple

Mc Lean VA - (Hybrid and few remote)

8 years of software design/development, testing, and requirements management experience.

Strong healthcare domain knowledge with deep understanding of ITS claims processing.

Deep understanding of Facets integration components, data models, Membership/Claims architecture, and Facets FXI services.

Knowledge of Oracle/SQL Server, Java, microservices, CI/CD, cloud (AWS/Azure), and preferably IBM MQ / AS400.

Apply