Salar (M.sc.) Mohtaj-Project management and tutor
Check rate
Experience
Project management and tutor
LLMs Learning Journey
- Designed and managed an upskilling academy for Deutsche Telekom.
Project management
News-Polygraph
- Led development of multi-modal AI models for disinformation detection.
Research Scientist
German Research Center for AI (DFKI)
- Evaluated and improved quality of machine-generated text for NLP applications.
- Developed transfer learning approaches for fake news detection.
- Created and delivered an online NLP course for AI Campus.
Developer
TextComplexityDE
- Built and deployed a German text readability assessment module.
- Organized a national challenge on text complexity prediction.
Research Scientist
Technical University of Berlin
- Built supervised/unsupervised models for automated claim extraction.
- Designed German text readability assessment tools and datasets.
Developer
Parsivar
- Developed an open-source Persian NLP toolkit (normalizer, stemmer, POS tagger).
Developer
Hamtajoo
- Built a Persian plagiarism detection system for scientific papers.
- Implemented scalable, asynchronous processing with Celery and RabbitMQ.
Researcher and Developer
ICT Research Institute of ACECR
- Developed a Persian plagiarism detection platform used by academic institutions.
- Created the widely adopted Persian NLP toolkit, Parsivar.
Industry experience
See where this freelancer has spent most of their professional time.
Experienced in Education, Information Technology, Telecommunication, and Media and Entertainment.
Business area experience
See which departments and functions this freelancer has contributed to most.
Experienced in Research and Development, Product Development, Information Technology, and Project Management.
Summary
I’m a researcher with a background in NLP and information retrieval, focusing on the evaluation and real-world application of generative models. My work spans machine learning and large language models, including projects on harmful content detection, fake news identification, and text complexity assessment, resulting in publicly available datasets, practical tools, and international publications.
Skills
- Programming & Data: Python, C/C++, R, Sql (Postgres)
- Llm Tools & Frameworks: Langchain, Llamaindex, Promptfoo, Hugging Face Hub
- Ml / Nlp Frameworks: Pytorch, Hugging Face Transformers, Spacy, Scikit-Learn, Allennlp
- Infrastructure: Docker, Git, Aws, Pycharm, Apache Lucene/Solr
Languages
Education
Technical University of Berlin
PhD in Computer Engineering · Computer Engineering · Berlin, Germany
AmirKabir University of Technology
Master of Science, School of Computer Engineering · Computer Engineering · Tehran, Iran, Islamic Republic of · 17.3/20
Shahrood University of Technology
B.S., School of Computer Engineering · Computer Engineering · Shahrud, Iran, Islamic Republic of · 16/20
Statistics
Experience
Global experience
Expertise
Qualifications
Profile
Frequently asked questions
Have questions? Find more information here.
Salar is based in Berlin, Germany.
Salar speaks the following languages: Persian (Native), English (Advanced), German (Intermediate).
Salar has at least 12 years of experience. During this time, Salar has worked in at least 5 different roles and for 8 different companies. The average length of individual experience is 2 years and 7 months. Note that Salar may not have shared all experience and actually has more experience.
Based on recent experience, Salar would be well-suited for roles such as: Project management and tutor, Project management, Research Scientist.
Salar's most recent position is Project management and tutor at LLMs Learning Journey.
In recent years, Salar has worked for LLMs Learning Journey, News-Polygraph, German Research Center for AI (DFKI), and TextComplexityDE.
Salar is most experienced in industries like Education, Information Technology, and Telecommunication. Salar also has some experience in Media and Entertainment.
Salar is most experienced in business areas like Research and Development, Product Development, and Information Technology. Salar also has some experience in Project Management.
Salar has recently worked in industries like Information Technology, Education, and Telecommunication.
Salar has recently worked in business areas like Research and Development, Product Development, and Project Management.
Salar holds a Doctorate in Computer Engineering from Technical University of Berlin, a Master in Computer Engineering from AmirKabir University of Technology and a Bachelor in Computer Engineering from Shahrood University of Technology.
The availability of Salar needs to be confirmed.
Daily rate distribution
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Average rates for similar positions
Rates are based on recent contracts and do not include FRATCH margin.
The average daily rate is the mean of all daily rates from recent contracts of comparable freelancers on our platform.
The median daily rate is the middle value of all daily rates — half of comparable freelancers charge less, half charge more. Unlike the average, it is barely affected by outliers.
Calculated based on our freelancers’ daily rates as of 7 Sep 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
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