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Application development

We maintain, modernize and migrate IBM iapplications.

After all, the digital transformation makes no exceptions for legacy systems.

We provide developer capacity to drive and deliver your digital transformation, making it so much more than just a buzzword.


We’ve been developing and modernizing bespoke software for market leaders and hidden champions for over 10 years.


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You, too, can benefit from our tried-and-tested process model:


1. Familiarization

Our experienced IBM i developers hop into your environment for an intensive 2–3 week pilot project and simply join in.

2. Ramp-up and deep dive

Here the focus is on building specialist and technical expertise – we work closely together and begin taking on projects independently.

3. Code and perform

You’ve done it! With our developer team at your side, request bottlenecks and successor worries are finally a thing of the past.
1. Familiarization
  • Introduce the application architecture and implementation details
  • Make contact with users and departmental leads to gain an insight into the deployment and use of the application
  • Gain an insight into workflows in developers’ core tasks (request management, release management, backlog, etc.)

2. Ramp-up and deep dive
3. Code and perform

Whichever direction you end up taking, we’ll be there with you:


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WORKBENCH EXTENSIONAs an extension to your workbench, we take on challenging project work, or less popular day-to-day tasks.
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APPLICATION MANAGEMENTDo you want PKS to take on the complete development and maintenance of your IBM i application? No problem: we are your application management partner!
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MIGRATION PROJECT PARTNERUse PKS’s experts so that you no longer need to worry about daily operation, and your internal team can give the migration project their full attention.

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The perfect balance between standard builds and custom development.

Today there’s no longer a radical difference between different concepts. Customers need hybrid architectures that allow them to use standard builds when these are cost-effective and readily available. But when your business requires bespoke solutions, they need to be developed quickly and skilfully to add value to your business and increase your competitive advantage.

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Bye-bye succession worries.

Replacing the whole application landscape solely because some IBM i experts are retiring is risky and often has serious consequences. Use the experience and capacity of our IBM i team to remain agile in the short term. You’ll gain the breathing space you need to obtain in-depth advice about the right fit and the future of your IBM i applications so you can make a well-reasoned decision.

Wherever you’re headed, we’ll get you to your destination.

Our experienced IBM i experts modernize your applications on the IBM i platform using state-of-the-art methods, or handle the switch to standard solutions such as SAP. We are also happy to provide strategic advice as part of software assessments, so you can make well-founded decisions.

Read more!

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No RPG on IBM i?
We also do COBOL!

Although 19% of all applications on IBM i are implemented in COBOL (HelpSystems’s IMB i Marketplace Survey 2021), COBOL users on IBM i often feel neglected. Not with us! Our team has extensive COBOL experience and sufficient capacity to help you, too.

Learn more!

We provide support where it’s needed, whether you want us to provide a few days of coding or completely take over your core system.

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PKS provided a quick and efficient solution at short notice, allowing us to maintain our usual level of customer satisfaction at a time of upheaval in our systems. We received comprehensive support and streamlined interfaces between the old and new ERP system. We’re delighted with the professionalism and the solutions provided.

Yvonne Thiele Head of IT / OrganizationTransgourmet
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We chose PKS as our development partners because they are a one-stop shop for support in all mission-critical aspects of the project. We also appreciate the unfailing reliability of both management and project leads.

Thomas Hurmer Managing DirectorAVUS International
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PKS’s IBM i software assessment is the ideal tool to check and confirm that our large IBM i core applications are fit for the future as we approach our next strategy period. What’s more, PKS has the resources and skills to support us as a development partner in this progression.

Peter Schwarzenbach Head of IT and TechnologySchweizer Reisekasse – Reka

Do you have specific questions or want to find out more?

Do you have specific questions or want to find out more?

We’ll start with a discovery session to discuss your requirements and find out whether and how we can help you. Based on that, we’ll organize the next steps for you, such as get-to-know-you days or reference contacts.


Contact persons Roland Müller, Heidi Schmidt and Stephan Urban