Open Source header image

Open Source

At the core of the Flowable products are fast, modern process and case management and rules engines that are open source and fully support the BPMN, CMMN, and DMN open standards.


The Flowable Project comprises people who are committed to creating the best Java BPM technology and making it available to everyone through Open Source.

Tijs_Rademakers_MG 8595

Tijs Rademakers

Tijs is the project lead at Flowable. He’s been involved in Java, BPM and enterprise integration projects for more than 15 years. Recently his work focused on building the v6 engine and he’s eager to continue evolving the v6 engine in the Flowable project. Tijs is passionate about open source BPM and integration. He’s the author of the Activiti in Action and Open source ESBs in Action Manning books.

Joram Barrez_MG 7807

Joram Barrez

Joram is a core developer at Flowable with many years experience in open-source software and of building scalable process engines. He co-founded the Activiti project (on which Flowable is based) and was a core developer for over six years. Before that he was employed by JBoss/RedHat as part of the jBPM team.


Filip Hrisafov

Filip got interested in BPM while working on his Master Thesis: Automatic Migration of Running Process Instances. Currently, he works at Flowable, where he focuses the backend of the various products using Flowable. Being an open source enthusiast, he is the project lead of MapStruct and a contributor to multiple Open Source projects.


Paul Holmes-Higgin

Paul has a long history with technology, currently with Flowable. Previously, he was a co-founder of Alfresco, holding a number of executive positions there. He was instrumental in bringing the Activiti BPM engine to market (of course, the engineers maintain it was their hard work). In his spare time, he enjoys sprint and marathon kayaking.

Micha Kiener

Micha, CTO at Flowable, is responsible for the company’s product strategy and vision. Prior to his position at Flowable, he was in charge of research and innovation at mimacom, an international services company focusing on Java and Open Source technologies. He has many years of practical experience in mid- to large-sized case- and process-applications in various domains.

Yvo_Swillens MG_7816

Yvo Swillens

Yvo is a passionate full stack and iOS developer at Flowable. He was part of the Alfresco Activiti core team. Before that he worked as a consultant and software architect. For V6 he developed a significant part of the new DMN Rule Engine.

Martin_Grofčík_MG 5863

Martin Grofcik

Java developer focused on BPM at Flowable. Martin is founder of flowable-crystalball (simulation engine for Flowable platform).

Josh Long

Josh (@starbuxman) is the Spring Developer Advocate at Pivotal. Josh is a Java Champion, author of 5 books and 3 best-selling video trainings (including Building Microservices with Spring Boot Livelessons with Spring Boot co-founder Phil Webb), and an open-source contributor (Spring Boot, Spring Integration, Spring Cloud and Vaadin).

Frederik Heremans

Co-founder and tech lead at Hivemind, based in Belgium. Former Alfresco employee and Activiti core developer. 33% backend, 33% frontend, 33% devops (and 1% rounding error).

Yannick Spillemaeckers

Yannick is an open source consultant at Inuits specialised in BPM. He is focussed on designing and optimising business processes while dealing with the technical implementations and integrations.

Robert Hafner

Principal Software Developer at SAS Institute Inc. focused on the development and integration of an event-driven BPM service within the micro service architecture of the SAS Viya platform.

Lori Small

Senior Domain Specialist at SAS Institute Inc. with a background in business process re-engineering experience in solution architecture, integration, event management and all cycles of development from design to implementation and testing.

David Malkovsky

David is a software developer working at Flowable with many years of software development and management experience who has been involved with workflow related technologies since 2009 (previously for a very large privately held software company).

Pascal Schumacher

Pascal is software developer who likes to contribute back to open source projects he uses at work.

Valentin Zickner

Valentin is a Solution Architect at Flowable. Besides consulting customers on the best implementation of Flowable, he's is currently focused on enhancing the developer experience through documentation improvements and video tutorials. 

José Antonio Álvarez_MG 5734

José Antonio Álvarez

José is a hands-on software architect and developer with several years of experience in open source.

Simon Amport

Simon is a software developer with several years of experience in Java. As a solution consultant at Flowable he is always in contact with customers who are working with the Flowable engines in their daily business. In the past years he successfully integrated Flowable for many customers and more will follow.