IBM i (AS400) Development Services

Award-winning business critical application development & support

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Since 2009, we have been designing and developing innovative and scalable business critical applications for organisations large and small across the UK and Europe.

By applying our knowledge, insight and experience we have been able to help businesses across the logistics, retail, manufacturing and finance sectors improve efficiency, drive operational performance and reduce costs.

Regardless of whether it is PHP, Java, RPG, DB2, HTML, JavaScript, jQuery, AJAX, JSON, CSS, web services or COBOL we understand what technologies will deliver the very best possible solution for your business, whatever the challenge.



Custom business application design and development

Business-critical applications

Transport management, sales order processing, B2B ecommerce, warehouse management, freight forwarding and other business software.

Mobile and web application design and development

Mobile and web applications

New PHP and RPG mobile and web applications that work seamlessly across any device.

Green screen to web gui software development

Green screen to web GUI

Maximise your investment in the IBM i by modernising existing green screen and new RPG programs and delivering new functionality.

BI, portal and dashboard software development

BI, portals and dashboards

Merge and visualise complex data from multiple sources to make better business decisions.



Bespoke business applications

IBM i and multi-platform application development

Business applications with PHP, Java, JavaScript, jQuery, AJAX, HTML, JSON, CSS or RPG

Whatever the challenge, Proximity can design and build business critical IBM i or multi-platform business applications using technologies such as PHP, Java, JavaScript, jQuery, AJAX, HTML, JSON, CSS or RPG.

Application maintenance can either be managed by your programmers, or Proximity can handle that as well.


Mobile business applications

Mobile apps and responsive web applications

PHP and RPG mobile and responsive web applications

With the proliferation of mobile devices, it is increasingly important to provide access to business applications regardless of location or device.

We have experience of developing mobile applications, responsive web applications or creating web-enabled green screen applications that are also mobile-optimised.



Web GUI for green screens

Web-based GUI for 5250 green screens

Give 5250 green screens a web GUI

Proximity can help you bring your existing 5250 green screen applications to the web.

We can modernise existing RPG and COBOL applications to deliver a modern web-based GUI while at the same time customise emulated screens to include advanced functionality.

With PHP on the IBM i, we can develop new functions or rewrite existing ones which are blended with the 5250 functions which all run in a single browser session with no tabbing, launching or navigating required.


Business Intelligence solutions

Visualise data and make better business decisions

Business Intelligence visualisation tools

Having access to relevant business KPI’s can help organisations of any size make better decisions. Whether it is identifying and exploiting opportunities for growth, mitigating risks or managing day-to-day operations business intelligence (BI) tools can be invaluable.

Confronted with screen after screen of data, it can be difficult for businesses to sift through and find the meaningful and actionable. Dashboards, web reports and queries can provide organisations with real-time, web-based visual picture of your business.

Developed so that they can be accessed from a browser on any device (desktop, tablet or mobile), we design BI tools so you can view a quick snapshot and drill down into specific data sets.

Want to discuss your project requirements with us?

Please complete our contact form or give us a ring.