Glossary entry (derived from question below)
Portuguese term or phrase:
Investigadora Doutorada Integrada
English translation:
Researcher with doctorate and tenure
Portuguese term
Portugal
Business Language Solutions Pt>Eng
Native in: English
Works in: Portuguese to English, English to Portuguese
Investigadora Doutorada Integrada
Proposed translations
Translations by lawyers for lawyers
Native in: English 
Works in: Portuguese to English, English
Researcher with doctorate and tenure
Brazil
32 years engineering/law/contracts
Native in: English (Variant: US) 
, Portuguese (Variant: Brazilian)
Works in: English to Portuguese, Portuguese to English
associate PhD investigator
Brazil
6 years high-quality translation
Native in: Portuguese (Variant: Brazilian)
Works in: Portuguese to English, English to Portuguese, Portuguese, and 1 more.
Joint PhD Researcher
http://www.cca.ufpb.br/cca/contents/paginas/institucional/po...
Deixo também a definição de Joint PhD que encontrei no site da Ghent University, link abaixo:
http://www.ugent.be/en/research/doctoralresearch/enrolment-d...
"He was a joint PhD researcher at EECS Dept., University of California, Berkeley, USA during 2014-2015 (...)"
"(...) Joint PhD program is a PhD program where a candidate is jointly enrolled at two universiClara Maathuis is currently a transdisciplinary joint PhD Researcher in Cyber Warfare/Operations (...)"
Switzerland
EN+SP+FR into PT (EU)+EN; +4 years exp.
Native in: Portuguese (Variant: European/Portugal)
Works in: English to Portuguese, Portuguese to English, Spanish to Portuguese, and 1 more.
PHD research fellowship / PHD senior research associate
In another sense, it refers to a permanent in-house position as a researcher of a member of faculty at a university, as opposed to a researcher being hired temporarily for a specific project. For example, in the webstie of Universidade de Coimbra: https://www.uc.pt/fluc/religionAJE/equipa_investigacao
There might not be an exact equivalent for this term since it is dependent on university culture which is different from country to country.
In the context of CV building and HR, the term will be read by potential employers who may not know the nuances of the term as used by FCT, for instance. It might be more adequate to highlight this experience as a "PHD research fellowship" or "PHD senior research associate". This is a suggestion. Asking the client for more details is important.
Discussion
Como se define um membro integrado?
Um investigador tem de cumprir três critérios mínimos para ser considerado membro integrado de uma unidade de I&D:
Ser investigador com o grau académico de doutor ou o título de agregado e que em qualquer dos casos têm obrigatoriamente um contrato ou vínculo com uma instituição portuguesa;
Dedicar um mínimo de 30% a atividades de investigação. A percentagem de tempo total de dedicação a atividades de I&D deve ser a que resulta da subtração a 100% da percentagem dedicada ao ensino e a outras atividades que não sejam de I&D;
Ter produzido pelo menos dois indicadores de produção científica (pode incluir a tese de doutoramento), se doutorado após 31/12/2009 e quatro indicadores de produção científica nos últimos cinco anos, se doutorado antes de 31/12/2009. São permitidos indicadores alternativos às tabelas de referência FCT desde que devidamente justificados na candidatura e com as implicações na avaliação.
https://www.fct.pt/apoios/unidades/faq.phtml.pt
I am not at al sure though.