Java Open Source Software Developer (f/m/d)

Paderborn University is a high-performance and internationally oriented university. Within interdisciplinary teams, we undertake forward-looking research,

design innovative teaching concepts and actively transfer knowledge into society. As an important research and cooperation partner, the university also shapes

regional development strategies. We offer our employees in research, teaching, technology and administration a lively, family-friendly and equal opportunity

environment, a lean management structure and diverse opportunities. Join us to invent the future!

In the Faculty of Computer Science, Electrical Engineering, and Mathematics the Department of Computer Science – Secure Software Engineering – is seeking

to fill the following position as soon as possible

Java Open Source Software Developer

(f/m/d)

(Salary level, depending on individual qualification, up to 13 TV-L)

for 100 % of the regular working hours. The position is limited to the three-year duration of the project. During this time, an application for an extension of the

project can be submitted to the “Deutsche Forschungsgemeinschaft” (DFG, German Research Foundation). If funding is renewed, an extension of employment

would be possible.

The successful candidate will lead a project to further develop the open-source code analysis framework SootUp (https://github.com/soot-oss/SootUp). SootUp

is an updated version of the globally used Soot framework, which can be used to statically analyze Java and Android software. As part of the project, SootUp will

be expanded to include features that are important to the research community. Another goal is to raise awareness of SootUp within the community and establish

a vibrant open-source ecosystem around SootUp. The project comprises a total of three positions and is funded by the German Research Foundation (DFG) over

three years as part of the e-Research Technologies program.

The Secure Software Engineering department develops methods and tools to make the hardware and software systems of tomorrow functional, fail-safe, and

attack-proof. The research is practice-oriented and conducted in collaboration with renowned international partners from science, politics, and industry. One

focus of the research group is the design of automated methods for software quality assurance, including in the context of agent-based software development.

Software tools developed by the department, including SootUp, are used by hundreds of research groups and companies worldwide. The advertised position

offers the opportunity to actively shape an exciting development project at the forefront of software engineering research and to set it up for sustainable further

development.

Responsibilities:

• Further development and maintenance of SootUp regarding the features specified in the project and beyond (70 %)
• Management and coordination of the project in consultation with the other people involved in the project (10 %)
• Scientific communication and OSS community building in relation to SootUp (10 %)
• Co-development of a sustainability concept for the further development of SootUp beyond the project (10 %)

Requirements:

• Bachelor or Master’s degree in Computer Science
• A minimum of five years of full-time experience as a Java software developer
• Very good written and spoken English skills; German skills are an advantage
• Experience in active participation in OSS projects and experience in a project management role are a plus

We offer:

• An exciting mix of technical, strategic, and coordination tasks in a motivated team
• Access to current LLM-based coding tools
• A generous travel budget to allow you to present SootUp at several international conferences a year
• Flexible working hours and the individual option of mobile working
• Wide range of health, counseling and prevention services
• Attractive fringe benefits such as childcare facilities and sports activities
• Opportunities for internal and external training and development
• Additional benefits in accordance with the collective agreement of the federal states (TV-L), such as annual bonuses and capital-forming benefits as well as

the VBL supplementary pension scheme

• Supportive workplace culture with plenty of opportunities to take the initiative

Applications from women are particularly welcome and, in case of equal qualifications and experiences, will receive preferential treatment according to state

law (LGG), unless there are preponderant reasons to give preference to another applicant. Part-time employment is generally possible. Applications from disabled

people with appropriate suitability are explicitly welcome. This also applies to people with equal opportunities in accordance with the German social law SGB IX.

Applications, including a clear motivational letter, a current CV, and work certificates, should be sent online via the University of Paderborn application portal

by June 3, 2026, quoting reference number 7294: https://bewerbung.uni-paderborn.de/stellen/7294. If you have any questions regarding the position itself,

please contact Prof. Dr. Eric Bodden: eric.bodden@uni-paderborn.de.

Information regarding the processing of your personal data can be located at:

https://www.uni-paderborn.de/en/zv/personaldatenschutz.

Paderborn University

Human resources

Warburger Str. 100

33098 Paderborn

www.upb.de