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As400 Developer Jobs (NOW HIRING)

A successful candidate will be able to support AS400 software applications developed in past years with noticeable changes in programming technology. AS400 analysis skills are required as well as the ...

A successful candidate will be able to support AS400 software applications developed in past years with noticeable changes in programming technology. AS400 analysis skills are required as well as the ...

A successful candidate will be able to support AS400 software applications developed in past years with noticeable changes in programming technology. AS400 analysis skills are required as well as the ...

A successful candidate will be able to support AS400 software applications developed in past years with noticeable changes in programming technology. AS400 analysis skills are required as well as the ...

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 ...

A successful candidate will be able to support AS400 software applications developed in past years with noticeable changes in programming technology. AS400 analysis skills are required as well as the ...

Role : AS400 RPG Dev Tech Lead Location : TAMPA FL 33607 Duration : 12+ month(s) AS400 RPG ... Must have experience: leading one or two developers. Experience working with Offshore is a must.

AS400 RPG Application Architect. Master of SQL within the AS400 environment, Stored Procedures ... Must have experience leading one or two developers. Experience working with Offshore is a must.

Doesn't matter as long as they have AS400 RPG Development Role overview The Senior Programmer/Analyst supports and enhances the company's legacy AS400 systems by designing, developing, and ...

AS400 Programmer

Hicksville, NY · On-site

$85K - $110K/yr

AS400 RPG Developer Location: Near Hicksville, NY Salary Range: $85,000 - $110,000 annually Employment Type: Full-Time Help Modernize Critical Business Systems While Supporting a Proven Enterprise ...

AS400 RPG Developer Location: Near Hicksville, NY Salary Range: $85,000 - $110,000 annually Employment Type: Full-Time Help Modernize Critical Business Systems While Supporting a Proven Enterprise ...

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As400 Developer information

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How much do as400 developer jobs pay per hour?

As of Jul 22, 2026, the average hourly pay for as400 developer in the United States is $54.90, according to ZipRecruiter salary data. Most workers in this role earn between $50.24 and $58.41 per hour, depending on experience, location, and employer.

What does a typical day look like for an AS400 Developer?

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 is an AS400 developer?

An AS400 developer is a software professional who specializes in creating, maintaining, and modifying applications on the IBM iSeries (AS/400) platform. They typically work with languages like RPG, COBOL, and CL programming, and may also handle database management and system integration tasks within a mainframe or enterprise environment.

What are the key skills and qualifications needed to thrive in the As400 Developer position, and why are they important?

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.

What coding language does AS400 use?

AS400, now known as IBM i, primarily uses the RPG (Report Program Generator) language for application development. It also supports COBOL, CL (Control Language), and SQL for database management and scripting tasks, making it a versatile environment for developers working on enterprise systems.

What is an AS400 Developer job?

An AS400 Developer is responsible for designing, developing, and maintaining applications on IBM's AS400 (now IBM i) platform. They typically use programming languages like RPG, CL, and SQL to create and manage business applications. Their role involves debugging programs, optimizing performance, and ensuring software meets business requirements. AS400 Developers often collaborate with IT teams to integrate AS400 systems with modern applications.

How much does an AS400 developer make in the US?

An AS400 developer in the US typically earns between $70,000 and $110,000 annually, depending on experience, location, and certifications. Skilled developers with expertise in RPG, CL, and IBM i environments tend to command higher salaries, especially in industries relying heavily on legacy systems.

Is AS400 still used?

AS400, also known as IBM iSeries, is still used in many organizations for legacy business applications, especially in industries like finance and manufacturing. AS400 developers maintain and update these systems, often working with tools like RPG and CL, and the platform continues to receive updates and support from IBM.
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Infographic showing various As400 Developer job openings in the United States as of July 2026, with employment types broken down into 88% Full Time, 9% Part Time, 2% Contract, and 1% Nights. Highlights an 95% Physical, 2% Hybrid, and 3% Remote job distribution, with an average salary of $114,200 per year, or $54.9 per hour.
iSeries/AS400 Developer - Remote

iSeries/AS400 Developer - Remote

Crum & Forster

Manhattan, NY • On-site, Remote

Full-time

Medical, Dental, Vision, Retirement, PTO

Posted 10 days ago


Job description

Crum & Forster Company Overview

Crum & Forster (C&F) provides market leading property & casualty, accident & health, specialty and standard commercial lines insurance solutions. A true underwriting company, we have a 200-year history of helping our customers manage risk with laser-focused expertise, integrity and discipline. Our people are empowered to make decisions and   problem-solve with you smartly and swiftly. Our annual gross written premium is 6.2 billion. C&F enjoys a financial strength rating of "A+" (Superior) by AM Best.

Our most valuable asset is our people. We have 3000 employees, and locations throughout the United States and India. With our employee-first focus, the Company is consistently recognized as a great place to work, earning multiple workplace and wellness awards, including the Great Place to Work Award, Fortune 100 Best Companies to Work For, Fortune Best Workplaces for Parents, Fortune Best Workplaces for Millennials, and many others.

C&F is part of Fairfax Financial Holdings. For more information about C&F, please visit our website: www.cfins.com

Job Description

The iSeries/WINS Systems Developer/Operator is responsible for overseeing and managing the iSeries AS400 and WINS system in COBOL and CL based environment, ensuring their smooth operation, and resolving any technical issues that may arise. The position is responsible for planning and implementing effective system maintenance and upgrades, as well as designing and implementing policies and procedures to ensure optimal system performance and security as required by the business. The role demands a combination of technical and managerial skills, including strong communication, problem-solving, and organizational flexibility.

What you will do for C&F:

  • Plan and implement operating system OS/400 upgrades and maintenance, ensuring minimum system downtime.
  • Manage, troubleshoot, and support all things Catapult, including development and implementation of Daily, Monthly, and Weekly processes.
  • Ensure all aspects of the ROCKET DEVOPS (ALDON) Source Code Development Tools are implemented, exercised, and supported throughout the lifecycle of any system change.
  • Support, troubleshoot, and resolve all issues related to MIMIX for high availability disaster recovery.
  • Knowledge of iSeries Cloud Solutions Kendryl/Skytap and implementation experience
  • Maintain, develop in a COBOL/CL environment on WINS (Wheatley Insurance System).
  • Reprogram/enhance parts of the WINS system in COBOL and CL development languages.
  • Design, plan, and implement new projects as requested by users and upper management
  • Perform all Database administrator functions for DB2/400
    • COBOL and CL Development work consists of:
      • Creating new batch programs and processes
      • Creating and implementing export processes
      • Updating Online Programs/processes
      • Updating existing batch program/processes
  • Manage/maintain/create automated tasks on Iseries and file servers, including Secure FTP with internal and external entities.
  • Design, plan, and implement data processes to meet the needs of the business from the WINS system.
  • Collaborate with cross-functional teams to keep abreast of changing business needs, and to ensure this ecosystem remains in line with the company's IT objectives and growth plans.
  • Work closely with other team members and support staff to meet user needs.
  • Meet with users and upper management to discuss requests/tickets/problems/complaints and enhancements to the system when necessary.
  • Execute/monitor daily and monthly processing, including all file transfers using IACCESS file transfer.
  • Manage relationships with technology vendors and service providers to ensure cost-effective solutions and optimal service levels.

What you will bring to C&F:

  • Bachelor's degree in Computer Science, Information Technology, or a related field (preferred).
  • Proven experience in Development and Operations on an iSeries/AS400.
  • Ability to upgrade the Iseries OS/400 operating system, Applying PTFs, performing IPL's and Tape library management
  • Strong knowledge and expertise in programing languages such as COBOL/400, SQL/400, CLP/400 SDA, RLU, PDM, WRKQRY, Sequel, ACOM, Catapult, DFU.
  • Demonstrated expertise in Insurance for Management of the WINS system
  • Full knowledge of backup and disaster recovery strategies and tools for the iSeries.
  • Strong project management skills, with the ability to plan, execute, and deliver projects accurately and on time.
  • Excellent problem-solving, communication and decision-making skills, with the ability to analyze complex issues and provide effective solutions.
  • Effective written and verbal skills, to collaborate with cross-functional teams and stakeholders.
  • Ability to prioritize tasks and manage resources efficiently.
  • Strong organizational skills with attention to detail.
  • Property and casualty insurance experience a strong plus.
  • Occasional travel to New York City or Morristown, NJ.
What C&F will bring to you
  • Competitive compensation package
  • Generous 401K employer match
  • Employee Stock Purchase plan with employer matching
  • Generous Paid Time Off
  • Excellent benefits that go beyond health, dental & vision. Our programs are focused on your whole family's wellness, including your physical, mental and financial wellbeing
  • A core C&F tenet is owning your career development, so we provide a wealth of ways for you to keep learning, including tuition reimbursement, industry-related certifications and professional training to keep you progressing on your chosen path
  • A dynamic, ambitious, fun and exciting work environment
  • We believe you do well by doing good and want to encourage a spirit of social and community responsibility, matching donation program, volunteer opportunities, and an employee-driven corporate giving program that lets you participate and support your community

At C&F you will BELONG

If you require special accommodations, please let us know. We value inclusivity and diversity. We are committed to equal employment opportunity and welcome everyone regardless of race, color, ancestry, religion, sex, national origin, sexual orientation, age, citizenship, marital status, disability, gender identity, or Veteran status. If you require special accommodations, please let us know

 For California Residents Only:  Information collected and processed as part of your career profile and any job applications you choose to submit are subject to our privacy notices and policies, visit https://www.cfins.com/onlineprivacypolicy/ca/noticeatcollection/  for more information.

Crum & Forster is committed to ensuring a workplace free from discriminatory pay disparities and complying with applicable pay equity laws.  Salary ranges are available for all positions at this location, taking into account roles with a comparable level of responsibility and impact in the relevant labor market and these salary ranges are regularly reviewed and adjusted in accordance with prevailing market conditions. The annualized base pay for the advertised position, located in the specified area, ranges from a minimum of $64,700.00 to a maximum of $121,600.00. The actual compensation is determined by various factors, including but not limited to the market pay for the jobs at each level, the responsibilities and skills required for each job, and the employee's contribution (performance) in that role. To be considered within market range, a salary is at or above the minimum of the range. You may also have the opportunity to participate in discretionary equity (stock) based compensation and/or performance-based variable pay programs.

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Employment Type: FULL_TIME