• Lecturer in Mathematics, Department of Mathematics, University of Kelaniya, Sri Lanka,  Feb 2025 – Present

•  Research Assistant, Algebra, Geometry and Computer Algebra Group, University of Kaiserslautern-Landau, Germany, April 2022 – Jan 2025

•  Lecturer (Probationary), Department of Mathematics, University of Kelaniya, Sri Lanka, Aug 2019 – Feb 2025

•  Temporary Lecturer, Department of Mathematics, University of Kelaniya, Sri Lanka, Sep 2018 – Aug 2019

•  Temporary Tutor, Department of Mathematics, University of Kelaniya, Sri Lanka April 2018 – Sep 2018

• Computational Algebraic Geometry & Computer Algebra

• Topological Data Analysis (TDA) & Computational Topology

•  Mathematical Education in the AI Era

• Interdisciplinary Applications in Mathematics

Publications 

• Adaptive Green Time Allocation Method for Traffic Congestion Based on Cell Transmission Model and Genetic Algorithm (Full Paper), Kulatunga D.D.S, Priyasad H.A.D, International Journal of Innovative Research and Knowledge, Volume-4 Issue-5 (ISSN-2213-1356)
• Investigating the Adequacy of the Inquiry-Based Learning Approach in Abstract Algebra Classes: A Case Study, Premarathna L.P.N.D, Priyasad H.A.D, 2nd Research Conference on Scholarship of Teaching and Learning-RCSOTL 2025
• Adaptive Green Time Allocation Method for Traffic Congestion Based on Cell Transmission Model and Genetic Algorithm (Abstract), Kulatunga D.D.S, Priyasad H.A.D, International Research Symposium on Pure and Applied Sciences 2018, Faculty of Science, University of Kelaniya
• A survey on the usage of canteens of the University of Kelaniya by students of the Faculty of Science, Dias S.N.U.P., Manamperi D.K.S., Kumara M.S.M.S., Sandaruwan D.M.S., Pramoda A.D.A., Fernando T.S.D., Rashmi W.A.D., Ravindran U.M., Dhananjani W.T.,Pitigalaarachchi P.A.A.C. and Attanayake A.M.C.H., Priyasad H.A.D, International Research Symposium on Pure and Applied Sciences 2016, Faculty of Science, University of Kelaniya

• Scholarship awarded to follow the Master programme ‘Mathematics International’ by the Graduate School, Department of Mathematics, RPTU Kaiserslautern-Landau, Germany. (2022-2025)
• Certificate for excellent teaching performance on the course unit feedback evaluation at the Department of Finance, University of Kelaniya, Sri Lanka, 2021.
• The ‘Most Ven, Yakkaduwe Sri Pragnarama Memorial Gold Medal’ for Receiving the Highest Marks at the Bachelor of Science (Special) Degree Examination of January/February 2018 (GPA 3.98/4.0)
• The Gold Medal for the Best Performance in Mathematics at the Bachelor of Science(Special) Degree Examination (GPA: 4.0/4.0) of January/February, 2018.
• Selected for the Dean’s List of the Faculty of Science based on outstanding academic performance during the academic years 2013/2014, 2014/2015 and 2015/2016.

1. Reviewer for the Physical Science track at the 6th International Conference on Pure and Applied and Pure Sciences (ICAPS 2025)
2. Reviewer (present) of Thesis Synopsis for Sri Lanka Association for the Advancement of Science (SLAAS), Section E1, PHYSICAL SCIENCE AWARDS - 2025, Physical Science Award 2025
3. Reviewer (present) of he 17th Applied Sciences, Business and Industrial Research Symposium (ASBIRES 2025) organized by The Faculty of Applied Sciences, Wayamba University of Sri Lanka.
4. Honourary guest of the Prize giving ceremony of the Dalupitiya Primary School held on 7th of November 2025.
5. Facilitator of the inauguration ceremony of the ICAPS 2025, organized by the Faculty of Science, University of Kelaniya, Sri Lanka.
6. Facilitator of the first meeting of the Sri Lankan Mathematics Society, Sri Lanka.
7. Co-Chair of the ’Mandala-It’s all about Maths’ programme organized by the Department of Mathematics, Faculty of Science, University of Kelaniya, Sri Lanka, held on 22nd December 2025.
8. Co-Chair of the event management committee of the 6th International Conference of Applied and Pure Sciences (ICAPS 2025), organized by the Faculty of Science, University of Kelaniya, Sri Lanka.
9. Co-Chair of the ’Science in Nature-Through lens’ photography exhibition, which was organized as a parallel event of the ICAPS 2025 and the national science week of the Ministry of Science and Technology of Sri Lanka.
10. Member of the curriculum development committee of the Department of Mathematics, University of Kelaniya, 2022.
11. Working committee member of the Self-evaluation Report for Programme Review 2020.
12. Member of the finance committee of the International Conference on Applied Sciences 2020 (ICAPS 2020), organized by the Faculty of Science, University of Kelaniya.
13. Conducted a workshop seminar for G.C.E. advanced level combined mathematics teachers in Sabarabamuwa province, organized by the Provincial Educational Department, Sabaragamuwa Province.
14. Participated as a session coordinator at the International Postgraduate Research Conference 2018.
15. Coordinator of “MATHEMATICS CAMP 2018” organized by the Department of Mathematics, University of Kelaniya, Sri Lanka.
16. Student Volunteer at the “VIDYA-2017” Exhibition held at the University of Kelaniya from 2nd-9th October 2017.
17. Completed the workshop on “Modelling and Simulations in Mathematical Biology” held from 08-07-2017 to 09-07-2017, at the Faculty of Science, University of Kelaniya, Sri Lanka.
18. Completed the workshop on “Scientific Research I” conducted by the Research and Services Centre, Faculty of Science, University of Kelaniya, Sri Lanka, 2017.
19. Participated in the “Two-day workshop on FUZZY Uncertainty Based modelling and Applications” organized by the Department of Statistics and Computer Science, University of Kelaniya, Sri Lanka, 2016.
20. Participated in the “Modelling week competition-2016” organized by the Department of Statistics and Computer Science, University of Kelaniya, Sri Lanka.