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$20/hr
100%
Job Success
$100K+ earned
Offers consultations
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Summary of Qualifications
1. Specialist on Mainframe Z/OS, AS/400 iSeries ,Windows Server 2019, UNIX and Linux systems.
2. Mainframe Development COBOL, JCL, VSAM, CICS
3. Development on AS/400 RPG/400, RPG ILE, CL/400, COBOL/400, SQL/400
4. Micro Focus Development COBOL, NetCOBOL, PeopleSoft
5. Data Migration on Mainframe and AS/400 to SQL Server and other Database
6. Development on Visual Studio 2022 - C#, VB.NET, ASP.NET
7. Development on Visual Studio - VB6, Visual FoxPro 9
8. Php/ MySql, ,HTML, XML, JavaScript, jQuery
9. Specialist Implement, maintain and customize ERP Systems (JD Edwards, Baan ERP)
10. Implement and maintain backend and Database of JD Edwards, Baan ERP System
- BPCS, JD Edwards, Baan ERP Systems in AS/400
11. Open source Programs (Joomla, Zencart, Magento, Drupal,)
12. SAP/R3, SAP Business One
Education:
1. Bachelor of Science in Information Systems - 1991, ACTON University – UK
2. Diploma in Computer System Design National Institute of Business Management (NIBM), Sri Lanka
3. Diploma in Computer System Design DMS Computer Center
4. Diploma in Advance Programming IDM Computer Studies Colombo, Sri Lanka
5. Advance Diploma in Computer Hardware Engineering
6. Advance Programming in JAVA Languages
Career History
2009–2014 Acentria Solutions, Dubai, UAE
Information Technology Manager- Habitat Hotel, Jeddah. KSA
Implement and maintain backend and Database of JD Edwards, Baan ERP System
Customize of JD Edwards, Baan ERP System reports in AS/400
Development Implement and maintain backend and Database of JD Edwards, Baan ERP System
Customize and Implement Application Software for organization ( RPG/400, RPG ILE, CL 400,
Visual Basic .NET 2005, C#)
Monitoring & maintaining the internal network , WLAN & FIBER OPTICAL , Enhancing and
operating on WIN 2003 SERVER , ISA SERVER 2006,MAIL EXCHANGE SERVER
Hardware and software maintenance.
MSSQL 2000, ORACAL 9i Servers Maintained and troubleshooting
Developed and enhance PAYROLL System – Developed in Microsoft Visual Studio 2005
Installation and support of systems, networking, devices, software and hardware equipment.
System support on technical and programming solutions.
TECHNICALSKILLS
Php/ MySql, ,HTML, XML, JavaScript, jQuery
Open source Programs (Joomla, Zencart, Magento, Drupal,)
Microsoft Visual Studio 2005, 2008 ( VB.NET, C#.NET)
Microsoft MQL Server 2005, 2000
RPG/400, CL/400, COBOL/400, SQL/400
Oracle 9i
SAP/R3
Java
ASP
Dayananda P.
has worked
.
$60/hr
100%
Job Success
$500K+ earned
Start of list.
End of list.
Highly skilled systems architect and developer with more than 40 years of experience designing, developing, deploying and integrating applications, from old single platform “green-screen” to multi-tier / distributed systems. Business experience in manufacturing, accounting, distributing, payroll, finance and TELCO:
✔ Strong knowledge of Java SE and JEE stacks, from early versions 1.x up to latest version
SE 17 and JEE 10 including Spring and Spring Boot.
✔ Deep understanding of old technologies such COBOL, VSAM, JCL, IMS, DB2, IMS “green screen”, etc. This knowledge allowed me to design, code and implement integrations between new applications with legacy ones.
✔ Solid leading and mentoring skills to help and encourage individuals to maximize their productivity by applying the best practices, frameworks, libraries and technology in general.
✔ I'm always learning about new technologies and tools to ease and reduce time spent in application development and deployment. Technology by itself is worth nothing if it does not solve real world problems.
$34/hr
100%
Job Success
$200K+ earned
Available now
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We help enterprises modernize, migrate, and future-proof IBM i (AS400), Mainframe, COBOL, and RPG environments while integrating them with cloud-native, API-first, and AI-enabled architectures. We are also ISO 42001 and ISO 27001 certified, ensuring strong AI governance and information security standards.
Since 2013, we have delivered transformation programs for 100+ global clients, including Fortune 500 organizations—turning rigid legacy platforms into scalable, digital ecosystems.
With deep expertise across IBM i, ERP, EDI, cloud, and enterprise application stacks, we bridge traditional systems with modern Java, .NET, cloud, microservices, AI, and real-time integration frameworks.
Legacy Systems & IBM i / Mainframe Modernization
Platforms: IBM i (AS400 / iSeries), IBM z, COBOL, RPG, SQLRPGLE, CLLE, Synon, NetCOBOL, Fujitsu COBOL, Delphi
Operating Systems: OS/400 (V5R3–V7R5), IBM AIX
Tools: Profound, LANSA, Synon, WebSphere, ARCAD, X‑Analysis, MIMIX, RDi, ACS
Core Modernization Services
AS400 / IBM i modernization & green‑screen transformation
RPG to Java and .NET migration
COBOL to NetCOBOL / Fujitsu COBOL conversion
IBM i API enablement & microservices architecture
DB2/400 migration to PostgreSQL, SQL Server, Cloud databases
IBM i cloud migration (AWS & Azure hybrid models)
Legacy application refactoring & performance optimization
Full‑Stack Development (Java | .NET | PHP | Delphi)
Java: Spring/Spring Boot, Hibernate, Struts, Microservices, REST/SOAP, Kafka, Camel
.NET: .NET Core/5–7, ASP.NET Core, MVC, Web API, Blazor, WCF, SignalR, EF Core, WPF, WinForms
PHP & Delphi: Laravel, Symfony, CodeIgniter, Yii, Zend | Delphi 7–11, RAD Studio, VCL, FireMonkey
Frontend: React, Angular, Vue, Next, Bootstrap
ERP, Integration & Streaming
ERP: JobBOSS ERP (Manufacturing), JD Edwards (CNC, BSSV, Z‑Tables, UBE), Infor (XA, LX), PrismERP, S2K, CAMS/400, Dynamics AX
Integration: MuleSoft (API‑led, DataWeave, RAML), Apache Kafka, REST/SOAP, cloud & hybrid integration
EDI & B2B Integration
X12, EDIFACT, VDA, TRADACOMS • Transactions 850–945 • VANs: OpenText, Liaison, GHX • FTP/SFTP/AS2
IBM Sterling, SPS Commerce, TrueCommerce • End‑to‑end EDI onboarding & automation
AI, Cloud & DevOps
AI: Code analysis, automated refactoring & tests, smart documentation, intelligent EDI validation
Cloud & DevOps: AWS, Azure, GCP • CI/CD, Docker, Kubernetes, Jenkins, GitHub Actions
Databases: DB2/400, PostgreSQL, MySQL, SQL Server, Oracle, MongoDB, Redis
Why Choose Us?
Proven IBM i / IBM z modernization expertise
Kafka & MuleSoft real-time integration
Deep EDI & ERP (Infor, JDE) capability
Structured, outcome-driven transformation
AI‑assisted acceleration for faster transformation
Performance Assurance
Dedicated 40+ hrs/week resource
Direct Upwork communication
Daily updates, weekly reports
On-time, high-quality delivery
Let's connect - If you are planning AS400 modernization, RPG conversion, COBOL migration, ERP integration, EDI automation, or AI-enabled transformation, we help you execute with precision and measurable outcomes.
Keywords-
IBM i Modernization | AS400 Modernization | RPG to Java Conversion | RPG to .NET Migration | Free Format RPG | Green Screen Modernization | IBM i Web Enablement | Legacy System Modernization | IBM i GUI Modernization | IBM i Cloud Migration | DB2 Migration | IBM i Consultant | Infor ERP Integration | JD Edwards EnterpriseOne | JDE API Integration | JDE Cloud Migration | ERP Integration | EDI 850 810 856 | WMS Integration | Cobol to Netcobol | Fujitsu Cobol | Delphi Modernization | Mainframe Migration | AI-Assisted Development | DevOps for IBM i | Enterprise Application Modernization | COBOL Migration | Mainframe Modernization | Job BOSS | IBM BOB | AI‑Assisted Modernization | ISO27001 | ISO42001
Associated with
Programmers.io
$25/hr
100%
Job Success
$2K+ earned
Start of list.
End of list.
Summary
Software Developer with many years of experience in modernizing legacy systems; have experience in
Point of Sale Systems and Network Management on both IBM and Microsoft platforms with emphasis on
communications between mainframe and micro-computer based systems.
$30/hr
100%
Job Success
$300K+ earned
Start of list.
End of list.
My Degree: More than 15 years of experience working for 1st level enterprises.
My Speciality: Solve problems.
My Proof: See my UpWork work history and feedback
$50/hr
100%
Job Success
$20K+ earned
Start of list.
End of list.
CanadaTronix Automation based in Canada ON
CEO and Automation and Robotic Specialist
_________________________________________________
Company: CanadaTronix Automation (Canada ON)
_______________________________________________________________
PLC/HMI/SCADA, and Microcontroller Expert
Power electronic system design , implementation and maintenance.
-Microcontroller based project Design and programming
-Robot Programming and interfacing with PLC
-Motion control and servo
-AC drive control and interface
-mechanical, pneumatic, hydraulic control systems
AB Rockwell Automation
________________________
SLC5, MicroLogix, ControlLogix, CompactLogix, Micro800
Siemens
_________
S7-300,400, S7-1200/1500, 200M
Schneider
__________
Premium, TSX Micro, Modicon
OMRON
_________
NX102,NX1P, CP1E
Electrical Design and Drawing
________________________________
AutoCAD, EPLAN Electrical and P&ID
Delta - DVP - SS2
Mitsubishi -FX3G and more
HMI
___________
-Siemens - Unified Comfort Panel(MTP), Comfort Panel (TP), Basic (KTP)
-Rockwell - Panelview
-Omron - NA series, NB series Schneider
- Harmony GTO, Harmony STO/STU
- Automation direct
Software and IDE
__________________
Delta - DOP 110
SCADA FactoryTalk View SE, ME
GE Cimplicity,
Ignition SCADA Software
Sematic manager, Step7, TIA Portal,
Rslogix500, RSlogix5000, Studio 5000,CCW, FactoryTalk View ME/SE,
Codesys,
PL7, UnityPro,
Sysmac Studio, CX-Programmer,
ISPSoft, GXworks 2 and 3,
WPLSoft, EcoStruxure, Cimplicity,
Communication Profinet, OPC-UA,EIP, Modbus, EtherCAT, MQTT
Servo Festo, Omron
$25/hr
100%
Job Success
$300K+ earned
Start of list.
End of list.
- 8 years experience in the Information Technology industry.
- On Upwork since 2011 (when it was oDesk and then merged with elance).
- Excellent skills in MS Excel and Google Sheets.
- Great analytical and Mathematics skills.
- Very good English language and proof-reading skills.
- Expertise on IBM Mainframes.
$35/hr
96%
Job Success
$200K+ earned
Available now
Start of list.
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Goals: Airtable and Caspio (Caspio Certified Developer )design and maintenance databases, Leading or being part of a team focused on quality and customer service primarily but not exclusive, IBM iSeries platform.
Background: Airtable, Banking, Insurance, Retail, AS400, Synon, JDE, DB2, RPG, Team management, MES, Pharmacy
User's feedback:
"Benito was incredible to work with. He has the soul of a teacher and was willing to guide and direct and show me how we got the work done. He was patient and understanding and incredibly responsive. On top of all of that, he was very, very good technically with airtable and got everything accomplished that was asked of him. I would work with Benito again in a heartbeat and I cannot recommend him highly enough."
David Denniston
Experience:
Manager
Cognizant Technology Solutions
Nov 2008 – Actual (6 years 4 months)Moreno 877 - CABA
MES Support Analyst Manager - Projects
ACE Insurance Latin America AS400 RPG
GIS Point of contact
PMO
Galicia Bank
Preparación de ambiente de integración para la migración de SAP PF y SAP préstamos
San Antonio InternacionalTechnical Responsible JDE
San Antonio Internacional
July 2005 – September2008 (3 years 3 months)
To mantain and develop new applications for Latin America
Wipro TechnologiesAnalista programador JDE
Wipro Technologies
2008 – 2008 (Less than a year)
Client Cargill
Financial modules
JDE World Software
Banco SupervielleAnalyst ProgrammerRPG
Banco Supervielle
Feb 2005 – Jun de 2005 (5 month)
ILE RPG, platform AS400, DB2
NeorisTeam Coordinator
Neoris
July 2004 – January 2005 (7 months)
JDE Arg - JDE, RPG, platform AS400, AP, AR, SOP, GL , case , 7 people in charge.
CitiSenior Back End Software Engineer
Citi
July 2003 – June 2004 (1 year)
platform AS400, MQSeries, Connect Direct, APIs, Base Software development, ILE RPG, Synon.,DB2 .
Wells FargoDevelopment and System Manager
Wells Fargo
July 2001 – June de 2003 (2 years)
RPG, ILE RPG, DB2, plataforma AS400, 5 people in charge .
D&SDevelopment and Operations Manager
D&S
July 2000 – June 2001 (1 year)
Synon, Cobol, 6 people in charge .
D&SAnalyst Programmer
D&S
July 1996 – June 1999 (3 years)
Cobol, Synon, platform AS400 .
Grupo ASSA Senior Consultant JDE
Grupo ASSA
1998 – 1999 (1 year)
Clients
LEDESMA
Sancor
Sony Records
Volkswagen AG - Finantial ServicesAnalyst Programmer
Volkswagen AG - Finantial Services
January 1990 – June 1995 (5 years 6 months)
Synon, RPG, platform AS400 .
Safra National Bank of New York RPG Analyst programmer
Safra National Bank of New York
1989 – 1990 (1 year)
S/36
Pasive accounts system
Bonds system
AS400 contributions(link)
Education:
Universidad de Buenos Aires
Postgrado, Ingeniero Civil especialista en Ingeniería de Sistemas
1989 – 1991
Maestrías
Pontificia Universidad Católica Argentina 'Santa María de los Buenos Aires'
Pontificia Universidad Católica Argentina 'Santa María de los Buenos Aires'
Ingeniero Civil, Ingenieria
1976 – 1981
Benito A.
has worked
.
$25/hr
100%
Job Success
$40K+ earned
Available now
Start of list.
End of list.
If your IBM i (AS400) or Mainframe system runs mission‑critical operations, you need modernization without risk
I help organizations stabilize, modernize, and integrate legacy IBM i / Mainframe applications while preserving uptime, performance, and business logic. My approach focuses on incremental, low‑risk modernization—extending system life while enabling web, API, cloud, and AI‑driven innovation.
With deep hands‑on experience across RPG, COBOL, Mainframe technologies, EDI integrations, and modern web stacks, I provide senior‑level ownership from assessment through production support.
What I Bring
IBM i / AS400: IBM i (AS400), iSeries, IBM Power Systems (V5R3–V7R5) — system modernization, application migration, performance optimization, and production stability.
RPG & ILE: RPG Free, RPGLE, SQLRPGLE, RPG II–IV, CLLE, ILE — legacy refactoring, modularization, DB2 optimization, DDS‑to‑SQL migration.
COBOL & Mainframe: COBOL, NetCOBOL, Fujitsu COBOL, CICS, JCL, DB2, VSAM — mainframe modernization, batch migration, performance tuning, controlled legacy transformation.
Integration & Modernization: AS400 green‑screen to web (Profound UI, LANSA, SYNON, Rocket Aldon), APIs, EDI (ANSI X12, EDIFACT), ERP & Manhattan WMS integration, ESB, JSON, hybrid/cloud modernization, Angular & React frontends.
AI‑Assisted Modernization: AI‑based code analysis, documentation, refactoring, anomaly detection, and batch/workflow automatio
Services
AS400 & Mainframe Modernization | RPG & COBOL Migration
Green Screen to Web Conversion | EDI & API Integration
DB2 & Data Migration | Production Support & Maintenance
Skills & Technologies
Languages: RPG, RPGLE, RPG Free, COBOL, NetCOBOL, JCL, SQL, Python, Java, PHP
Databases: DB2/400, IBM Db2, VSAM, PostgreSQL, MS SQL
Tools: Profound UI, LANSA, SYNON, Presto, Rocket Aldon, RDz, Eclipse
Source Control: Aldon, Turnover, Implementer, Endevor, Git, SVN
Platforms: OS/400, IBM i, AS400, IBM Power Systems
Infor & JDE Integration:
Experience integrating IBM i / AS400 systems with Infor (LN, M3) and JD Edwards (JDE)—supporting data migration, interface development, batch jobs, APIs, and EDI‑driven business workflows.
Domains- Banking | Retail | Manufacturing | Insurance | Healthcare | Life Sciences | E‑Commerce | Defense
If your IBM i / AS400 or Mainframe environment is critical to revenue, let’s modernize it strategically, with stability and measurable ROI. Click “Hire Me” or send an invite to discuss your project.
Keywords
IBM i Modernization | AS400 Modernization | RPG Modernization | RPG Free | RPGLE | COBOL Modernization | NetCOBOL | Fujitsu COBOL | Mainframe Modernization | Green Screen Modernization | IBM i Web Enablement | RPG to Java | RPG to .NET | DB2 Migration | ERP Integration | Manhattan WMS | EDI Integration | AI Legacy Modernization | IBM Power Systems | API Integration | Legacy System Transformation
Associated with
Programmers.io
$25/hr
100%
Job Success
$6K+ earned
Start of list.
End of list.
IBM iSeries (AS400) Modernization Expert | RPG & COBOL Specialist | AI-Enabled Legacy Transformation
If your IBM i (AS400) system runs your business, you can’t afford instability, failed migrations, or inexperienced developers. I help companies modernize, stabilize, and future-proof their RPG & COBOL systems — without risking downtime or operational disruption. With 10+ years of deep IBM i experience, I work with organizations that depend on legacy systems but need better performance, modern integrations, and long-term sustainability.
Core Skills:
Languages & Tools: RPGLE (Free Format), SQLRPGLE, COBOL, COBOL400, NetCOBOL, Fujitsu COBOL, CL/CLP, SYNON (CA 2E), ADELIA, Visual LANSA, PHP on IBM i
Database: IBM Db2/400 (Db2 for i), MS SQL — performance optimization, query tuning, indexing strategies, workload stabilization
Migration & Integration:
Legacy RPG & COBOL modernization
Mainframe to IBM i transitions
API enablement of monolithic applications
Secure third-party integrations
Low-risk migration execution plans
Modernization:
DDS to DDL conversion
Green Screen to Web transformation
REST API development
JSON, EDI & XML integrations
System refactoring for maintainability and scalability
AI & Automation:
AI-assisted legacy code analysis & structured documentation
AI-driven log monitoring & anomaly detection
Batch job and workflow automation
Automation scripts that reduce operational overhead
DevOps & Optimization:
Production issue root cause analysis
Performance stabilization of high-volume systems
Deployment automation for IBM i environments
What Sets Me Apart:
I understand IBM i systems are business-critical assets — not experiments
I prioritize stability before innovation
I use AI tools strategically to improve speed and code reliability
I take ownership — from assessment to post-deployment support
If your IBM i system is essential to your revenue, let’s modernize it the right way — strategically, safely, and with long-term ROI in mind.
Keywords-
#AS400 #IBMi #RPGLE #SQLRPGLE #COBOL400 #CLP #Db2Fori #Db2400 #VisualLansa #Synon #ADELIA #LegacyModernization #CodeMigration #LANSA #DDS2DDL #GreenScreenToWeb #DevOpsAutomation #PHPonIBMi #EDIIntegration #JSONHandling #MainframeMigration #APIModernization #AIIntegration #AIAutomation #PerformanceTuning #LegacyToModern #CustomERP #IBMiIntegration #ModernIBMi #AS400WebIntegration #TechnicalDebtReduction #Db2Optimization #HybridArchitecture #SystemRefactoring #ProductionSupport #DigitalTransformation #NetCOBOL #FujitsuCOBOL
Associated with
Programmers.io