I was already an Oracle employee in Brazil and applied for jobs in different product development teams at Oracle HQ through internal iRecruitment (which is also available externally at http://irecruitment.oracle.com).

I got contacted for some of those applications, but my case required L1 visa sponsorship, so not every initial contact was fruitful. However, for this particular application, there was a green light for international transfers, and I went through the interview phase. This phase basically consisted of four formal phone interviews with four different interviewers:

• Two other software engineers
• One product manager
• One director

Only the two engineers conducted very technical interviews, basically focused on Java and logic. These lasted for about an hour each and had a medium-high difficulty level. The other two interviews were more about getting to know my professional experience and objectives, and also to let me know more about the job.

After that, I received positive feedback in about a week. Then, in my case, the whole approval process for my job offer took more than a month. Finally, I could start the real transfer process, which took a couple more months. Now I'm here and quite happy so far.

Considering a 2-dimension matrix that can only be traversed by one adjacent position at a time and never diagonally. Create an algorithm to traverse that matrix from its upper-left corner to its lower-right corner using the shortest possible path in the most efficient way.