Webseattle — amazon announced an expansion of its chicago tech hub and plans to create 400 new tech jobs in fields including cloud computing, advertising,. Webamazon announced in a press release on monday that it plans to expand its chicago tech hub and hire 400 new tech employees for roles in cloud computing,. Webamazon will expand its office in downtown chicago by more than 70,000 square feet, allowing the company to double its tech workforce in the city. Webamazon is doubling the headcount at its downtown chicago tech office — again. On monday, the day before the seattle company’s career day event, amazon. Webamazon is doubling its headcount in chicago. Webto accommodate this job creation, amazon will expand its office in downtown chicago by more than 70,000 square feet, allowing the company to double.