Postdoctoral Research Fellow in Convergence in DAG-based Distributed Ledger Technologies


Position as Postdoctoral Research Fellow available at Networks and Distributed systems (ND) group, Department of Informatics, University of Oslo, Norway. This project is in collaboration with the IOTA Foundation.

The fellowship is a full-time position with a fixed-term period of two years and eight months. The main purpose of a postdoctoral fellowship is to provide the candidates with enhanced skills to pursue a scientific top position within or beyond academia.

Application deadline is July 3rd, 2022. Starting date no later than January 1st, 2023. No one can be appointed for more than one Postdoctoral Research Fellowship at the University of Oslo.

Salary is between NOK 534400 - 615800 per annum depending on qualifications in position as Postdoctoral Research Fellowship (position code 1352).

Project description

This project will focus on DAG-based Distributed Ledger Technologies (DLTs), in which the distributed ledger is organized in a less restricted structure, instead of a linear chain of blocks, such as in Bitcoin or Ethereum. This approach enables better performance and scalability, e.g. in terms of throughput and confirmation delay as the size of the network grows. However, this approach presents many challenges related to consensus, since the increased transaction processing capability may also lead to more inconsistent views across different participants of the system. 

The main objective of this project is to investigate convergence in DAG-based DLTs, i.e. the process by which nodes obtain the same view of the state of the ledger, while satisfying stringent performance and scalability requirements. This project is expected to make contributions in topics such as, but not limited to: better understanding the characteristics of DAG-based DLTs, secure but fast finality of transactions, performance and scalability evaluation. This project will be conducted in collaboration with the IOTA Foundation, which is one of the leading providers of DAG-based DLTs. There is significant potential for making a contribution to the actual IOTA production system, in addition to conducting novel research. 

Qualification requirements

  • Applicants must hold a degree equivalent to a Norwegian doctoral degree in Computer Science. Doctoral dissertation must be submitted for evaluation by the closing date. Only applicants with an approved doctoral thesis and public defense are eligible for appointment.

How to apply

The application must include:

  • Cover letter (statement of motivation, summarizing scientific work and research interest) 
  • CV (summarizing education, positions, pedagogical experience, administrative experience and other qualifying activity)
  • Copies of educational certificates, academic transcript of records
  • A complete list of publications and up to 5 academic works that the applicant wishes to be considered by the evaluation committee
  • Names and contact details of 2-3 references (name, relation to candidate, e-mail and telephone number)
  • Optionally, any other document that the applicant wishes to be considered by the evaluation committee (e.g. letters of recommendation, awards, etc)

The application with attachments must be delivered in our electronic recruiting system. Foreign applicants are advised to attach an explanation of their University's grading system. Please note that all documents should be in English or a Scandinavian language.

Shortlisted candidates will be called for an online interview.

The University of Oslo aims to achieve a balanced gender composition in the workforce and to recruit people with ethnic minority backgrounds.


For further information please contact Roman Vitenberg () or Thiago Garrett ().