• Visiting Lecturer, Department of Mathematics, University of Colombo, Sri Lanka (18/11/2024 – Feb/2025).
• Research Assistant (Part-time), Department of Flow and Material Simulation (SMS), Fraunhofer Institute for Technical and Industrial Mathematics (ITWM), Kaiserslautern,Germany (15/10/2019 –31/03/2024).
• Research Assistant (Part-time), Department of Mathematics, Technische Universität Kaiserslautern, Germany (1/11/2018 –30/9/2019).
• Temporary Tutorial Instructor in Mathematics, University of Ruhuna, Matara, Sri Lanka (06/02/2017–05/02/2018).

Higher Order Numerical Methods for Hyperbolic Conservation Laws.

 Publications

• Kodippuli Arachchige Suresh Nisansala, "Higher Order Active Flux Methods with ADER-DG Technique for Hyperbolic Conservation Laws", https://doi.org/10.26204/KLUEDO/8330.

• K. A. Suresh Nisansala and P. A. Jayantha, 2018, "Finite Volume Method for Simulating the Resistance Heating of a Rectangular Metal Sheet",(ISSN 2362- 0412) 15th Academic Sessions of University of Ruhuna, (March 2018), Sri Lanka.

• 2017 - "ProfessorIsabelleAtaliMemorial,CIMPA(Centrer for Pure and Applied Mathematics, France) Gold Medal", awarded by Educational Support Foundation - Ruhuna Mathematics for the graduate who achieved the highest grade point average at the Bachelor of Science (Special) degree in mathematics with First Class (Honours) and graduated in the year 2016. University of Ruhuna, Matara, Sri Lanka.
• 2017- "Wasantha Mohotti Memorial Gold Medal", the graduate who achieved the highest grade point average in the Bachelor of Science (Special) degree in physical science and graduated in the year 2016.University of Ruhuna,Matara, Sri Lanka.

• Successfully completed Certificate in Accounting and Business I. The Institute of Chartered Accountants of Sri Lanka (2012).

• Successfully completed Certificate in Information and Communication Technology. District Nanasala training centre- Ambalangoda, Sri Lanka (2011).

• Successfully completed Certificate in English Language – Intermediate Level. IHRA, University of Colombo, Sri Lanka (2013 July- 2014 January).

• Successfully completed Certificate in Computer Literacy. Information and Communication Technology Centre, University of Kelaniya, Sri Lanka (2013).