Glossary entry (derived from question below)
English term or phrase:
shift left mindset
Portuguese translation:
mentalidade de antecipação dos testes (shift left)
English term
Brazil
Teresa Cristina Felix de Sousa
Technical Translation Specialist
Native in: Portuguese
Works in: English to Portuguese
shift left mindset
Proposed translations
Brazil
IT Specialist • M.A. in Linguistics
Native in: Portuguese (Variant: Brazilian) 
Works in: English to Portuguese, Spanish to Portuguese, Portuguese to English, and 1 more.
mentalidade de antecipação dos testes (shift left)
Traduziria dessa forma, com base no link abaixo. Deixaria "shift left" ao lado entre parênteses, pois trata-se de tradução não consagrada, mas acho importante uma tradução que explique, muito resumidamente, o conceito.
https://en.wikipedia.org/wiki/Shift_left_testing
Shift left testing [1] is an approach to software testing and system testing in which testing is performed earlier in the lifecycle (i.e., moved left on the project timeline). It is the first half of the maxim "Test early and often."[2]
United States
BA in Transl., MA in ESL, 15 yrs of exp.
Native in: Portuguese
Works in: English to Portuguese, Portuguese to English, Spanish to Portuguese, and 2 more.
mentalidade de realização de testes prematuros
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Note added at 10 mins (2018-09-18 17:58:08 GMT)
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prematuro: (adj.) Que sucede antes do tempo em que naturalmente teria de suceder (crescimento prematuro; velhice prematura; morte prematura). Ant. "tardio".
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Note added at 15 mins (2018-09-18 18:03:10 GMT)
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Desculpe, ficou faltando a fonte de referência, que colo a seguir. Note nesta página que "shift left" é usado em contraste com "late testing": https://en.wikipedia.org/wiki/Shift_left_testing
Teste prematuro revela o Nokia C7
Brazil
Making connections with Portuguese words
Native in: Portuguese (Variant: Brazilian)
Works in: English to Portuguese, Spanish to Portuguese, Portuguese
Mentalidade/estrutura de pensamento baseada no “shift left”
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Note added at 16 mins (2018-09-18 18:04:23 GMT)
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www.page.topdesk.com/o-que-e-shift-left
Will do!
Native in: Portuguese (Variant: European/Portugal)
Works in: English to Portuguese, French to Portuguese, German to Portuguese, and 1 more.
lógica/postura de ensaio precoce e progressivo ("shift left")
mentalidade de deslocamento para a esquerda
Norway
Salvador Scofano and Gry Midttun
Engineer:Oil&Gas/Electron/Finan/Law/HSEQ
Native in: Norwegian 
, Portuguese
Works in: English to Portuguese, Norwegian to Portuguese, Portuguese to Norwegian, and 19 more.
Filosofia (ou o método) de testes antecipados
Xxxx está adotando a filosofia (ou o método) de testes antecipados, de modo a ...
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