Stamp4有效期根据情况会有所不同。通过critical skills拿到的Stamp4每次续签给2年，也有续签5年的选项，...
Stamp 1G两年不能直接申请Stamp 4。必须持有公司担保的工作许可和Stamp1 24个月（critical skills) 或者...
skills on strategy, experience, technology and operations by domain and industry. The Infrastructure segment offers solutions for hybrid cloud, and is the foundation of the hybrid cloud stack. Infrastructure is optimized for infusing AI into mission-critical transactions and tightly integrated with IBM ...