曾担任悉尼大学高级研究员，主要从事化疗耐药机制、细胞凋亡通路、抗癌新药、抗癌药药物动力学和毒理学、肿瘤动物模型、黑色素瘤、骨髓瘤等领域研究。目前，担任清北医学母语润色专家，擅长润色领域：药学、肿瘤、动物模型。
专家发表sci论文节选：
1.Allen, J., van Dort, S., Buitelaar, M., van Tellingen, O., Schinkel, A. Mouse Breast Cancer Resistance Protein (Bcrp1/Abcg2) Mediates Etoposide Resistance and Transport, but Etoposide Oral Availability Is Limited Primarily by P-glycoprotein. Cancer Research.2013;63(6); 1339-1344.

2.Allen J 4th, Gyorke CE, Tripathy MK, Zhang Y, Lovett A, Montgomery SA, Nagarajan UM.Caspase-11 Contributes to Oviduct Pathology during Genital Chlamydia Infection in Mice.Infect Immun. 2019 ;87(8). pii: e00262-19. 
3.Allen J, Molloy E, McDonald D.Severe neurological impairment: a review of the definition.Dev Med Child Neurol. 2019(online). 
4.Allen J, Power B, Abedin A, Purcell O, Knerr I, Monavari A.Plasma methionine concentrations and incidence of hypermethioninemic encephalopathy during infancy in a large cohort of 36 patients with classical homocystinuria in the Republic of Ireland.JIMD Rep. 2019 ;47(1):41-46.
5.Adams MA, Allen JI.Medical Professional Liability in Gastroenterology: Understanding the Claims Landscape and Proposed Mechanisms for Reform.Clin Gastroenterol Hepatol. 2019. pii: S1542-3565(19)30734-7.
6.Tummon HM, Allen J, Bindemann M.Facial Identification at a Virtual Reality Airport.Iperception. 2019;10(4):2041669519863077.