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Pedro O.

5,0

1,8

100%

BARAKALDO, Spain

$25 USD por hora

I’m married birth on Markina (Bizkaia) . Computer Engineer Degree by University of Deusto with qualification of excellent in the End of Career thesis “Management of Supplying in a navigation company”. As experience has: Five years working in the Data Centre on Naviera Aznar as programmer on equipments S/3 and S/34 of IBM in RPGII language. Six years working as Analyst , System Technical in Elecnor on equipments s S/36,S/38 of IBM. Nowadays I’m working from 21 years on Formica as IT Manager where we have a iSeries working on languages RPG/400 and COBOL/400, and on Novell Netware and W2000/W2003/W2008 servers . I have experience on BPCS, PC’S, client servers, Communications, design and develop of applications ,Internet ,ERP’s and domain of English cause is necessary on my actual job with very often travels to UK and relationship with another companies of the group.. Waiting that my services can be useful I put to your arrangement .

mais

AS400 & iSeries COBOL DDS RPG Development

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Debasis B.

4,9

284

8,1

95%

New Delhi, India

$60 USD por hora

Consultant, Solution Architect, Enterprise System Integration Specialist with Healthcare/Telecom/Finance domain specialization Areas Of Expertise: .Net, Java, Python,C++, Delphi,SQL Server, Analysis Services,OLAP, Data Warehousing, SSRS, SSAS, XML, Azure, Cloud Computing, VBA, Windows Mobile, Android, iPhone, DICOM, HL7, Sharepoint, Microsoft CRM . AJAX, WCF , WPF, ASP.Net MVC, HTML5, Delphi, QuickBooks, MS Access, MS Excel, Go

mais

AS400 & iSeries PHP ASP C Programming Java

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Carlos S.

5,0

137

8,4

95%

Buenos Aires, Argentina

$35 USD por hora

"If human thinking fails, try anthropoid thinking. Fresh approach helps remove the obstacle." There used to be an ape-man in the photo: MoonWatcher. His bio takes us way back in time. I like to think of MoonWatcher as my oldest known ancestor. Had he lived in our times, he'd be well versed in the following: ● Database systems: • Airtable: database design, automation and scripting. • MS-Access, a sentimental favorite, handy and versatile like the ancient bone-made tools. • other databases: MS-SQLserver • MySQL • PL/SQL • DB2 SQL/400. • lastly a set of forgotten, prehistoric tools: dBase, Borland, Paradox, FoxPro. ● Programming languages (in alphabetical order): • C# • Cobol, all its reincarnations • IBM AS/400-iSeries, its languages: RPG, Cobol, CL, SQL/400, Query/400. • Javascript • SAP Datasphere, SAP Analytics Cloud • Visual Basic, all its reincarnations As you've read up to this point, you may feel intrigued by MoonWatcher's origins and developments. Read the first chapters in Arthur Clarke's "2001, A Space Odyssey". The anthropoid's fears and amazements, his early attempts at understanding the world, are magistrally depicted.

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AS400 & iSeries JavaScript XML Visual Basic .NET

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ASRADesigning

5,0

7,4

95%

Karachi, Pakistan

$40 USD por hora

I'm Muhammad Ashar, a passionate digital creator specializing in immersive experiences across game development, website design, and both 2D and 3D art and animation. With years of hands-on experience, I take pride in delivering high-quality, creative solutions that bring ideas to life. Whether you're looking to build a captivating game, design a modern and responsive website, or create eye-catching visuals and animations, I offer end-to-end services tailored to your specific needs. My Services: Game Development: Designing and developing engaging games for various platforms. Website Development: Creating clean, responsive, and user-friendly websites. 2D & 3D Art: Crafting visually stunning artwork and models for games, media, and more. Animation: Producing dynamic animations that enhance storytelling and audience engagement. Graphic Design: Delivering impactful designs for branding, marketing, and digital media. I'm committed to blending creativity with technology to help bring your vision to life. Let’s work together to turn your ideas into reality.

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AS400 & iSeries PHP Perl ASP C Programming

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Benjamin M.

4,9

8,0

99%

Chennai, India

$60 USD por hora

Consultant with wide exposure. Domain exposure includes Logistics, Banking, Retail, Manufacturing. Process Improvement | Workflow optimization | AI implementations Top clients: Standard Chartered Bank, Weiss Rohlig Technologies Skilled in: OS: Windows Server, Linux(most flavors), Unix, Solaris & AS400 DB: Oracle, SQL Server, MySQL, Sybase, xBase, FileMaker & DB2 Web: IIS, Nginx, Apache AS: Tomcat, JBoss, WebSphere, Weblogic, GlassFish, Tuxedo, BroadVision, Node, Zend, .Net ERP/CRM: IFS Applications, SAP, Oracle Applications, Salesforce, JDA/Blue Yonder/Red Prairie, Fishbowl, Sage CMS: WebCenter, SharePoint, Experience Manager, FileNet, WordPress, Drupal BI: Power BI, Grafana, MicroStrategy, Oracle, BO Scripting:Shell script, PowerShell, VBScript, AutoIt Security frameworks: Palo Alto, Qualys, Tenable, Rapid7, Tripwire Development stacks: MEAN/MERN LAMP/WAMP J2EE .Net/Win32/PowerApps Django/Python Oracle Fusion, Apex & PL/SQL Clipper/xBase/FoxPro/QT/Harbour Mobile: Swift, Flutter, React, Ionic Big Data: Spark, Hadoop NoSQL: MongoDB, Cassandra In-Mem: Rethink, Redis, TimesTen Data Processing/BPM/ETL: Pentaho, Confluent, Ab Initio Blockchain & Virtualization: Desktop: Citrix, Remote Desktop, X11SSH Server: VMware,Hyper-V, Solaris Zone, Virtuozzo, VirtualBox Para/Cloud: Azure, AWS, GCP, Xen,UML, Terraform Containerization & Microservices: Docker, Kubernetes, Consul VOIP: Asterisk, Kamailio

mais

AS400 & iSeries PHP ASP Java JavaScript

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Edgar Azael C.

4,3

6,2

96%

Carrizal, Venezuela

$12 USD por hora

== ESPAÑOL == Soy diseñador web fullstack con más de 10 años de experiencia en el área. Mi objetivo es proveerle los mejores servicios y soluciones adecuados para todos sus problemas y necesidades, agregando valor a sus ideas == ENGLISH == I'm a senior Web Designer 10-years experience. My goal is to provide the best services and solutions suitable for all my clients problems and needs, adding values to your ideas HABILIDADES / MY KEY SKILLS - Web Consultancy & Website Maintenance. - Website responsive Designing - CMS Website Development - PHP Application Development - JavaScript, HTML5, Css3, Jquery, XML. - ERP, CRM, Dolibarr. - CodeIgniter, WordPress, WooCommerce, OpenCart, ShopiFy. - MySql, MariDB, MS Sql Sever, Oracle. Payment Getways Paypal, Straal, RedSys, AstroPay, PayU, ComproPago, e-Payouts,, MercadoPago Others Integrations DHL WS, HotelBeds WS, Custom WS, WebService SOAP, Rest Api Integraciones AFIP (ARGENTINA - Administración Federal de Ingresos Públicos) Integraciones DIAN (COLOMBIA - Dirección de impuestos y aduanas Nacionales)

mais

AS400 & iSeries PHP Banner Design Data Processing Project Management

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Pedro L.

5,0

6,0

97%

Maipu, Argentina

$20 USD por hora

## BIO I'm programmer ,expert on oracle PL/SQL ,FORM 6i a Report, ORACLE APEX also I m expert on delphi , firebase Database, ## Area of Expertise Oracle, PL/SQl, Oracle Form, Oracle Report, Delphi, PALM, PocketStudio ,ORACLE DBA,Firebird,Sql Server,Database,SQL,Web Services,SQl Server, ORACLE APEX I have several years working with legacy database migrating to oracle

mais

AS400 & iSeries .NET Translation Windows Desktop Delphi

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Musa M.

5,0

4,5

100%

Barataria, Trinidad and Tobago

$20 USD por hora

I have a Bachelor's degree with a Major in Computer Science and over 10 years experience in web development. Specializing in JavaScript, AJAX, HTML, CSS, PHP and MySql I also work with ibm midrange (sqlrpgle, cl, dspf, java), profound ui Rich Displays pages, smart pages, insure90 etc.

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AS400 & iSeries PHP ASP Java JavaScript

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Mahendra K.

4,9

5,7

96%

Bangalore, India

$30 USD por hora

Mac has several years of experience in the Information Technology industry providing complex business solutions. His experience includes Architecture and Application design and development, Infrastructure Assessment and Support, Corporate Training in over 50 topics. Mac is a Sun Certified Programmer for Java 2, and a Certified Lotus Developer. Currently the core technical person in a software development company focused in the design and development of complex software applications using Microsoft .Net, Java/J2EE & IBM technologies, primarily Lotus Domino, WebSphere and DB2. Mac has engaged in projects using technologies such as Java, J2EE, Lotus Domino/Notes, MQ Series, and J2EE on IBM WebSphere / BEA WebLogic / IPlanet on various flavors of Unix including extensively on IBM AIX and Sun Solaris, to deliver solutions to a wide range of firms within the manufacturing, distribution, media/entertainment, insurance, telecommunication, and financial industries. He has also worked in Portal software such as the IBM Websphere Portal Server. He has assisted IBM Lotus Partner companies with determining a migration plan from Lotus Domino to the Lotus Workplace product set, including the usage of Lotus Workplace Web Content Management. Provided consultancy service to a leading IT company for a Weblogic Integration project involving interaction with a US based team. Consultancy included current system assessment, new system architecture proposal, design & system documentation, knowledge transfer to project team and training of key project members. Driving the development of 2 products based on Lotus / Java. Architecture, Design and Development for a JMX enabled portal for administration of a telecom switch. Mac also has interest in learning, speaking and transcribing Japanese/Korean and other languages.

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AS400 & iSeries PHP ASP C Programming Java

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Como contratar um ótimo freelancer AS400 & iSeries Developer

An AS400 and iSeries developer is a specialist who designs, codes, and maintains business applications on IBM's midrange platform — now known as IBM i — using languages such as RPG, CL, and COBOL alongside DB2 for i. These developers keep mission-critical ERP, finance, manufacturing, and logistics systems running on hardware that powers a significant share of global enterprise workloads.

What an AS400 and iSeries developer delivers

An AS400 iSeries developer builds and supports the green-screen and modernized applications that handle order processing, inventory, payroll, billing, and supply chain operations for enterprises running on IBM Power servers. They write new programs, refactor legacy logic, optimize DB2 queries, and integrate the platform with web services, mobile front-ends, and cloud systems.

The commercial value is straightforward. Many companies have decades of business rules embedded in RPG and COBOL code on IBM i, and that code processes high transaction volumes with stability the business depends on. A skilled iSeries developer protects that investment, modernizes it where it makes sense, and keeps the platform connected to modern toolchains.

Core services and deliverables

iSeries development work covers a wide range of tasks, from low-level program changes to full modernization initiatives. Typical deliverables include:

New RPG IV, free-format RPG, ILE RPG, and CL programs for business processes

COBOL/400 maintenance, bug fixes, and feature enhancements

DB2 for i database design, SQL tuning, indexes, views, and stored procedures

Display file (DSPF), printer file (PRTF), and subfile development for 5250 screens

Modernization of green-screen applications into web or mobile interfaces

API development and integration using IBM Integrated Web Services, REST, and SOAP

Data migration between DB2 for i and SQL Server, Oracle, or PostgreSQL

Job scheduling, spool file handling, and CL automation for batch processing

Performance tuning, security hardening, and IBM i upgrades

ERP customization on JD Edwards, Infor LX, BPCS, JBA, and Manhattan systems

Tools, languages, and platforms

An experienced AS400 developer is fluent across the IBM i toolchain and the languages that dominate the platform. Look for working knowledge of:

RPG (RPG III, RPG IV, ILE RPG, free-format RPG) and COBOL/400

Control Language (CL) and CLLE for system scripting and job control

DB2 for i, embedded SQL, and SQL Query Engine (SQE)

IBM Rational Developer for i (RDi) and traditional SEU/PDM tooling

5250 emulators, IBM i Access Client Solutions, and Navigator for i

Modernization frameworks such as Profound UI, LANSA, ASNA Monarch, and Looksoftware

Source control with Git, ARCAD, and Turnover or Aldon for change management

Integration tools including MQ Series, IBM i Integrated Web Services, and Node.js on IBM i

Industries that rely on IBM i talent

The platform is concentrated in industries with heavy transactional workloads and long-lived business systems. iSeries developers are commonly hired by:

Banking, insurance, and financial services running core processing on IBM i

Manufacturing and distribution shops on JD Edwards World, EnterpriseOne, BPCS, or Infor

Retail and wholesale operations using legacy POS and inventory systems

Logistics, warehousing, and transportation providers on Manhattan or custom systems

Healthcare administration, utilities, and government agencies with legacy estates

How to evaluate AS400 and iSeries developer candidates

Strong iSeries developers combine deep platform knowledge with the ability to bridge legacy code and modern architectures. When reviewing profiles, look for years of hands-on RPG and DB2 for i experience, exposure to ILE concepts and service programs, and evidence of modernization or integration projects. Portfolios should reference specific ERP environments, modernization frameworks, or integration patterns rather than generic claims.

Useful interview questions to copy and use:

Can you walk me through the differences between RPG III, RPG IV, and free-format RPG, and when you would choose each?

How do you approach tuning a slow DB2 for i query — what tools and indexes do you reach for first?

Describe a project where you exposed RPG business logic as a REST API. What did the architecture look like?

How have you used ILE service programs and binding directories to structure a large application?

What is your approach to modernizing a 5250 green-screen application without rewriting the underlying business logic?

Why hire AS400 and iSeries developers on Freelancer.com

IBM i is a specialized platform, and the talent pool is smaller than in mainstream web development — which makes reach matter. Freelancer.com gives you access to a global community of AS400 and iSeries developers, including senior RPG engineers, ILE specialists, DB2 for i experts, and modernization consultants who have worked across JD Edwards, BPCS, Infor, and custom green-screen systems. Profiles include verified ratings, completed project history, and portfolio samples so you can assess fit before you commit. Clients set their own budgets and receive competitive bids, and Milestone Payments protect funds until agreed deliverables are accepted.

Post a project on Freelancer.com today and connect with skilled AS400 and iSeries developers ready to maintain, modernize, and extend your IBM i applications.

What are the steps to hiring a freelance AS400 and iSeries developer?

Hiring on IBM i requires a clear brief because the platform spans many sub-skills — RPG coding, DB2 tuning, ERP customization, and modernization are not interchangeable. The steps below help you write a brief that attracts the right specialists, evaluate their proposals, and award with confidence.

Step 1: Post your project on Freelancer.com

The quality of bids you receive is shaped almost entirely by how clearly you describe the work. For an AS400 project, that means naming the languages, the IBM i release level, the ERP or application involved, and the specific deliverables you expect. Head to the post project page , fill in the brief, scope, timeline, and budget, and publish the project for freelancers to bid on.

State the languages and versions involved — for example, ILE RPG, free-format RPG, CL, COBOL/400, embedded SQL

Name the application or ERP context, such as JD Edwards World, EnterpriseOne, BPCS, Infor LX, or a custom in-house system

Specify the IBM i OS release, hardware tier, and any source control or change management tools in use

List concrete deliverables — new programs, modernized screens, REST APIs, DB2 for i tuning reports, or migration scripts

Describe access arrangements, data sensitivity, timeline, and your budget range

Step 2: Review bids from freelancers

Bids on a specialist platform like IBM i are short proposals, not just price quotes. A strong proposal will show the developer has read your brief, understood whether you are dealing with legacy RPG III or modern free-format ILE, and proposed an approach that fits. Use Freelancer.com chat to ask clarifying questions before shortlisting.

Look for proposals that reference your specific ERP, OS release, or modernization framework

Check that the suggested approach distinguishes between maintenance, refactoring, and rewrite where relevant

Note candidates who ask intelligent questions about source control, testing, and deployment windows

Confirm timelines are realistic for the volume of programs and database objects involved

Review any sample RPG, CL, or SQL code attached to the proposal for clarity and modern style

Step 3: Evaluate freelancers and award the project

The final decision combines proposal strength with hard evidence on the freelancer's profile. For IBM i work, look for consistency across multiple completed projects rather than a single impressive example, and pay attention to written reviews from clients in similar industries.

Review portfolio depth across RPG, CL, DB2 for i, and any modernization or integration work

Check star ratings and the volume of completed projects on the platform

Read written client reviews for comments on code quality, communication, and reliability

Confirm verified payment method, completion rate, and on-time delivery rate

Award the project and set up Milestone Payments so funds are released only when agreed deliverables are accepted

What is the difference between AS400, iSeries, System i, and IBM i?

They all refer to the same IBM midrange platform across different eras. AS/400 was the original 1988 brand, later renamed iSeries, then System i, and now IBM i — the operating system that runs on IBM Power servers. Most developers use the terms interchangeably when describing their experience.

Can I hire an iSeries developer for a one-off project?

Yes. Many clients post fixed-scope work such as a single RPG program rewrite, a DB2 for i performance audit, a green-screen modernization proof of concept, or an API integration. You can also hire on an ongoing basis for production support and enhancements.

Do I need an RPG developer or a full modernization specialist?

If you are maintaining or extending existing logic, an RPG and CL developer is usually enough. If you are converting green-screen applications to web or mobile, integrating with cloud systems, or migrating off DB2 for i, look for someone with documented experience in modernization frameworks like Profound UI or LANSA, plus REST API and web stack skills.

How long does an AS400 development project take?

Small program changes and bug fixes can be completed in days, while larger ERP customizations or modernization phases run for weeks or months. Timelines depend on code complexity, the quality of existing documentation, and how much testing the business requires before release.

Should I hire a freelancer or an agency for IBM i work?

A freelance iSeries developer is often the right choice for focused enhancements, support, or specialist input on a defined deliverable. Agencies make more sense when you need a multi-disciplinary team for a long modernization program. Freelancer.com supports both — you can engage an individual or assemble a small team of specialists.