Key Personnel and Form Teachers

Staff of GESS

Last updated 27 July 2026

School Management Team

Principal	Ms Tan Hwee Pin	tan_hwee_pin@schools.gov.sg
Vice-Principal	Mrs Oh-Ong Lay Ling	ong_lay_ling@schools.gov.sg
Vice-Principal	Mr Goh Thye Heng	goh_thye_heng@schools.gov.sg
School Staff Developer	Mr Paul Lee Tzi Wang (LTW)	lee_tzi_wang@schools.gov.sg
HOD / Character & Citizenship Education	Mdm Leong Pui Wan (LPW)	leong_pui_wan@schools.gov.sg
HOD / Humanities	Ms Esther Wong Teck Yen (WTY)	wong_teck_yen_esther@schools.gov.sg
HOD / Mathematics	Mrs Tan-Ong Li Pei (OLP)	ong_li_pei@schools.gov.sg
HOD / Mother Tongue	Ms Laura Lim Hwee Mean (LHM)	lim_hwee_mean@schools.gov.sg
HOD / Science	Ms Aileen Tan Zilin (TZL)	tan_zilin_aileen@schools.gov.sg
HOD / PE & CCA	Mr Goh Chuan Hwee (GCH)	goh_chuan_hwee@schools.gov.sg
HOD / ICT	Mdm Siti Zuraidah Bt Kamis (SZK)	siti_zuraidah_kamis@schools.gov.sg
HOD / English	Ms Deborah Tan (TWL)	deborah_tan_wei_ling@schools.gov.sg
HOD / Student Management	Mr Tay Yong Chiang (TYC)	tay_yong_chiang@schools.gov.sg
HOD/Special Projects	Mr Lim Say Chionh (LSC)	lim_say_chionh@schools.gov.sg
Year Head	Mr Clarence Loh (LCY)	loh_choon_yang@schools.gov.sg
Year Head	Mr Alvin How (HWC)	how_wing_cheong_alvin@schools.gov.sg
Assistant Year Head	Ms Lee Pei Ying (LPY)	lee_pei_ying@schools.gov.sg
Assistant Year Head	Mr Marcus Quek Zhi Whui (QZW)	quek_zhi_whui@schools.gov.sg
Level Head / PE & CCA	Mr Sathis Kumar (SK)	sathis_kumar_niana_sekaran@schools.gov.sg
Subject Head / CCE	Mdm Shinderjeet Kaur (SDJ)	shinderjeet_kaur@schools.gov.sg
Subject Head / Science	Ms Tay Yian Ling (TYL)	tay_yian_ling@schools.gov.sg
Subject Head / Student Leadership	Mrs Nalyn Chan (CMT)	chua_mui_tin@schools.gov.sg
Subject Head / ICT	Mr Ang Boon Bin Brandon (ABB)	boon_bin_ang@schools.gov.sg
Lead Teacher	Mdm Rosmiliah Bte Kasmin (ROS)	rosmiliah_kasmin@schools.gov.sg
Senior Teachers	Mr Chan Hoong Leong (CHL)	chan_hoong_leong@schools.gov.sg
	Mr Jansen Tan (JAN)	weiliang_jansen_tan@schools.gov.sg
	Mr Jeffrey Phua (PJ)	phua_jeffrey@schools.gov.sg
	Mr Lee Fook Yew (LFY)	lee_fook_yew@schools.gov.sg
	Mr Jeffrey Sui Siang Wey (SSW)	sui_siang_wey@schools.gov.sg
Administration Manager	Mr Tan Sheau Shan	tan_sheau_shan@schools.gov.sg
Administration Manager	Ms Zubaidah Binte Lah (ZUL)	Zubaidah_Lah@schools.gov.sg
Operations Manager	Mr Lim Swee Chye (SCL)	lim_swee_chye@schools.gov.sg
Operations Manager	Mr Ng Tuan Kiat Jimmy (NTK)	ng_tuan_kiat@schools.gov.sg

Year 2026 Form Teachers

Secondary 1 (2026)

Secondary 1 Form Teachers

Class	Form Teacher	Email
1-1	Mr Sathis Kumar (SK)	sathis_kumar_niana_sekaran@schools.gov.sg
1-1	Ms Carolyn Koh (KLK)	carolyn_koh_leng_kim@schools.gov.sg
1-2	Mr Lim Say Chionh (LSC)	lim_say_chionh@schools.gov.sg
1-2	Ms Khadijah (KHA)	khadijah_bte_mustapah@schools.gov.sg
1-3	Ms Tay Yian Ling (TYL)	tay_yian_ling@schools.gov.sg
1-3	Mr Senthil Kumaran (STK)	senthil kumaran kunasegaran@schools.gov.sg
1-4	Mr Qaleelullah Mohamed Fahim (QAL)	qaleelullah_mohamed_fahim@schools.gov.sg
1-4	Ms Wong Jing Ning (WJN)	wong_jing_ning_b@schools.gov.sg
1-5	Mr Lee Fook Yew (LFY)	lee_fook_yew@schools.gov.sg
	Ms Lynn Kwek Xinyi (KXY)	lynn_kwek_xinyi@schools.gov.sg
	Ms Elza Tan Sze Jiin (TSJ)	tan_sze_jiin@schools.gov.sg
1-6	Ms Ashley Wong (WMJ)	wong_meijing_ashley_a@schools.gov.sg
1-6	Ms Felicia Lee Jia Jie (LJJ)	lee_jia_jie_f@schools.gov.sg
1-7	Ms Amanda Chong Chi (CC)	chong_chi@schools.gov.sg
1-7	Mr Tan Kay Chuan (TKC)	tan_kay_chuan_b@schools.gov.sg

Secondary 2 (2026)

Secondary 2 Form Teachers

Class	Form Teacher	Email
2-1	Ms Umamageswari (UMA)	umamageswari_sathiaseelan@schools.gov.sg
2-1	Ms Thin Lae Yi Zaw (LYZ)	thin_lae_yi_zaw@schools.gov.sg
2-2	Ms Sandra Wee (WPW)	wee_pey_woon@schools.gov.sg
2-2
2-3	Mr Johnathan Beh (BGT)	beh_guanting_johnathan@schools.gov.sg
2-3	Ms Esther Wong Teck Yen (WTY)	wong_teck_yen_esther@schools.gov.sg
2-4	Mr Jeffrey Sui (SSW)	sui_siang_wey@schools.gov.sg
2-4	Mr Kevin Kung (KSO)	kung_sion_onn_kevin@schools.gov.sg
2-5	Ms Ngoh Cher Tian Jenny (NCT)	ngoh_cher_tian_jenny@schools.gov.sg
2-5	Mr Hao Yi (HY)	hao_yi@schools.gov.sg
2-6	Ms Herianti Samsudin (HS)	herianti_samsudin@schools.gov.sg
2-6	Mr Kelvin Kwok (KTY)	kwok_tzih-yeung_kelvin@schools.gov.sg
2-7	Mdm Asnur (ASN)	asnur_mursalin_aspar@schools.gov.sg
2-7	Mr Seah Cheng (SC)	seah_cheng@schools.gov.sg

Secondary 3 (2026)

Secondary 3 Form Teachers

Class	Form Teacher	Email
3-1	Mr Chan Hoong Leong (CHL)	chan_hoong_leong@schools.gov.sg
3-1	Mrs Chithra (CHI)	thanigaivel_chithra@schools.gov.sg
3-2	Mr Chee Fook Sing (CFS)	chee_fook_sing@schools.gov.sg
3-2	Ms Shirley Tan (TLH)	tan_li_hoon_shirley@schools.gov.sg
3-3	Ms Lee Pei Ying (LPY)	lee_pei_ying@schools.gov.sg
3-3	Ms Chua Ariella Elise (CAE)	chua_arielle_elise@schools.gov.sg
3-4	Ms Ong Jing Xuan Jamie (OJX)	ong_jing_xuan_jamie@schools.gov.sg
3-4	Mdm Shinderjeet Kaur (SDJ)	shinderjeet_kaur@schools.gov.sg
3-5	Mr Ang Boon Bin Brandon (ABB)	boon_bin_ang@schools.gov.sg
3-5	Mr Farid (FARID)	muhammad_farid_b_mohd@schools.gov.sg
3-6	Ms Phua Hui Shi (Mrs Lin) (PHS)	phua_hui_shi@schools.gov.sg
3-6	Mr Tan Hong Yu (THY)	tan_hong_yu_u@schools.gov.sg
3-7	Mr Jeffrey Phua (PJ)	phua_jeffrey@schools.gov.sg
3-7	Mr Reno Sam Wei Jie (SWJ)	reno_sam_wei_jie_a@schools.gov.sg

Secondary 4 (2026)

Secondary 4 Form Teachers

Class	Form Teacher	Email
4-1	Ms Marhaidah Abdul Hamid (MAR)	marhaidah_abdul_hamid@schools.gov.sg
4-1	Mr Tay Chew Woo (TCW)	tay_chew_woo@schools.gov.sg
4-2	Mr Wong Chin Yeow (WCY)	wong_chin_yeow@schools.gov.sg
4-2	Ms Aileen Tan Zilin (TZL)	tan_zilin_aileen@schools.gov.sg
4-3	Mr Keith Lim (LYT)	lim_yu_tian@schools.gov.sg
4-3	Mr Tan Yong Geng (TYG)	tan_yong_geng@schools.gov.sg
4-4	Mr Jansen Tan (JAN)	weiliang_jansen_tan@schools.gov.sg
4-4	Ms Meena Annamalai (MA)	meena_annamalai@schools.gov.sg
4-5	Ms Chan Yi Tsun (CYT)	chan_yi_tsun@schools.gov.sg
4-5	Mr Samuel Leong Yong Jie (LYJ)	samuel_leong_yong_jie@schools.gov.sg
4-6	Mrs Nalyn Chua (CMT)	chua_mui_tin@schools.gov.sg
4-6	Ms Claire Wong (WKI)	claire_wong_kaii@schools.gov.sg
4-7	Mr Marcus Quek Zhi Whui (QZW)	quek_zhi_whui@schools.gov.sg
4-7	Ms Chandrima Roy (ROY)	chandrima_roy@schools.gov.sg

Secondary 5 (2026)

Secondary 5 Form Teachers

Class	Form Teacher	Email
5-1	Mr Marcus Quek Zhi Whui (QZW)	quek_zhi_whui@schools.gov.sg
5-1	Ms Chandrima Roy (ROY)	chandrima_roy@schools.gov.sg

Flexi Adjunct Teachers (FAJT)

FAJT Teachers

Designation	Teacher	Email
FAJT (EL)	Ms Chai Li Min (CLM)	chai_li_min@schools.gov.sg
FAJT (MA)	Mr Lim Bun (LB)	lim_bun_stephen@schools.gov.sg
FAJT (FCE)	Ms Fion Tan Geok Leng (TGL)	tan_geok_leng_a@schools.gov.sg
FAJT (ART)	Mr Tan Kay Chuan (TKC)	tan_kay_chuan@schools.gov.sg
FAJT (CL)	Ms Chen Shu Jin (CSJ)	chen_shu_jin@schools.gov.sg
FAJT (EL)	Ms Carolyn Koh Leng Kim (KLK)	Carolyn_Koh_Leng_Kim@schools.gov.sg

Executive and Administrative Staff (EAS)

Executive and Administrative Staff Photo

Executive and Admin Staff (EAS)

Ms Tan Hwee Pin	Principal
Mrs Oh-Ong Lay Ling	Vice-Principal
Mr Goh Thye Heng	Vice-Principal
Mr Tan Sheau Shan	Administration Manager
Ms Zubaidah Binte Lah	Administration Manager
Mr Lim Swee Chye	Operations Manager
Mr Ng Tuan Kiat Jimmy	Operations Manager
Mr Sim Kwang Mong sim_kwang_mong@schools.gov.sg	Senior School Counsellor
Ms Karin Ng Yi-Lyn karin_ng_yi-lyn@schools.gov.sg	School Counsellor
Ms Hemalatha Rajendran hemalatha_rrajendran@schools.gov.sg	Senior Roving Student Welfare Officer for South 4
Yap Soo Ting yap_soo_ting@schools.gov.sg	Special Educational Needs Officer
Evangeline Ong Yun Mei Evangeline_Ong_Yun_Mei@schools.gov.sg	Special Educational Needs Officer
Ms Hanitah Binte Musa	Administrative Executive
Ms Josephine Tang Siew Seah	Administrative Executive
Ms Ngo Law Kah Miriam	Corporate Support Officer
Ms Jacqueline Tham	Corporate Support Officer
Mdm Sapura Bte Md Noor	STEM Instructor (Laboratory)
Ms Erma Nur Azura	STEM Instructor (Laboratory)
Mr Jimmy Hsu	STEM Instructor (Workshop)
Mr Ang Kok Kim	STEM Instructor (Workshop)
Ms Betty Chew	Operations Support Officer
Mdm Nirmala Devi	Operations Support Officer
Ms Koh Ah Chuan	Operations Support Officer
Mr Cheong Chee Khei	Operations Support Officer
Mr Soh Woon Peng	ICT Manager
Mr Kelvin Yap	Desktop Engineer
Mr Tan Kok Wei	Desktop Engineer