Sanjiva Weerawarana

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Sanjiva Weerawarana
Alma materRoyal College, Colombo
Kent State University
Purdue University
Known forApache Software Foundation
Lanka Software Foundation
AwardsRed Hat Summit Award
Scientific career
FieldsComputer Scientist
InstitutionsPurdue University

Sanjiva Weerawarana is a CEO, software developer and open source evangelist. He is known for:

He is currently Chairman and CEO of WSO2 Inc. He lives in Colombo, Sri Lanka. He is a visiting professor and lecturer at the University of Moratuwa and a board alumnus of the Open Source Initiative.


Weerawarana attended Kent State University, majoring in applied mathematics / computer science, before completing a PhD at Purdue University. He then joined IBM Research working in Hawthorne, New York, until he left to found the startup WSO2. He currently lives in Colombo.

Open Source[edit]

Weerawarana has been involved with the Apache Software Foundation since 2000 when he worked on the original Apache SOAP project. Weerawarana is an elected Member of the Foundation and is a committer on several projects. A complete and current listing of Apache projects in which he is involved is available here: Apache Committers.

In 2004 he founded the Lanka Software Foundation to encourage involvement in Open Source from Sri Lankans. And he is a director there.


Weerawarana has many research publications. A full list is available here: [1] Notable research publications include:


  • Sanjiva Weerawarana, Francisco Curbera, Frank Leymann and Donald F. Ferguson (2005). Web Services Platform Architecture. Prentice Hall. ISBN 0-13-148874-0.CS1 maint: multiple names: authors list (link)
  • Maria E. Orlowska, Sanjiva Weerawarana, Michael P. Papazoglou, Jian Yang (2003). Service-Oriented Computing -- ICSOC 2003 : First International Conference, Trento, Italy, December 15–18, 2003, Proceedings. Springer. ISBN 3-540-20681-7.CS1 maint: multiple names: authors list (link)

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