I will try to provide you with the links of the international organizations, with the current job offers :

1. A very useful website is Civic.md
Current offers can be found here
2. The \most\ visited website is of course UNDP
UNDP Moldova current offers
3. UN Moldova offers can be found here
4. Delegation to the EU Moldova can found here
5. UN Women Moldova - here
6. UNICEF Moldova - here
7. EUBAM Moldova - here
8. IOM Moldova - here 
9. SOROS Moldova - here
10. OSCE Moldova - here ( please select MOLDOVA from the drop down menu )
11. USAID BRITE - here
12. UNFPA - here
13. USAID - here
14. US Embassy -here
15. EBRD - here
16. UNHCR Moldova - here
17.  Centrul de guvernare electronica - here
18.  Twinning, TAIEX, SIGMA, EU Project 'Support to the State Chancellery - TTSIB' - here
19. Amnesty Moldova - here 
20.  USAID FHI360 - here
 to be continued...
International projects, links and facebook pages :
1. USAID.CEED.II.project   here
2. USAID Local Government Support Project in Moldova