Jayachandran is currently serving as a Postdoctoral Fellow at the Applied Research Center for Environment and Marine Studies (ARC-EMS) at King Fahd University of Petroleum and Minerals (KFUPM). Prior to this role, Jayachandran completed a PhD and Postdoctoral Research Fellowship at Cochin University of Science and Technology. In addition to research activities, Jayachandran serves as a subject editor for the journal One Ecosystem and reviews manuscripts for several prestigious journals.

Jayachandran is a Fellow of Future Earth Coasts (FEC) and a member of several esteemed organizations, including the IUCN Commission on Ecosystem Management (CEM), IUCN Commission on Environmental, Economic and Social Policy (CEESP), UN Regular Process PoE for Global Marine Environment Assessment, Estuarine & Coastal Sciences Association (ID: 3135), Association for the Sciences of Limnology and Oceanography (ASLO) (ID: 15073), Marine Biology Alumni Association, India, Society of Wetland Scientists, Madison (ID: 076670), Svalbard Science Forum (RIS ID: 10327 and 10325), British Ecological Society (ID: CON-1027404), Society of Marine Biologists, India (ID: SOMB/ER/678/05/080), Mangrove Society of India, and the Association of Fisheries Graduates (ID: AFG/M/2020-21/409).

New Genus described:

1. Indosphenia  nov. gen. (Oliver, Hallan & Jayachandran, 2018)

New Species described:

2. Indosphenia Kayalum  nov. sp. Oliver, Hallan & Jayachandran, 2018

3. Victoriopisa cusatensis nov. sp. Philomina, Bijoy Nandan & Jayachandran, 2018

4. Stygarctus keralensis nov. sp. Vishnudattan, Bijoy Nandan, Hansen & Jayachandran sp. nov.

5. Xylophaga Nandani nov. sp. Velasquez, Jayachandran, Jima (2021) nov. sp.