IBM Senior Software Engineer interview questions

I applied for the position of "Senior Software Engineer" on IBM's career website. Got a phone interview call after month. After the phone interview, received an onsite interview email after one month further. Interview was very easy, nothing difficult, basic behavioural questions. However when I received the offer, I saw that the job title got changed and they removed the word "Senior" from the job title. After analyzing the offer thoroughly with the benefits details, I realized that it is not competitive with respect to the market. Hence I decided to decline it.