A natural swinger of the ball, Siraj has played for his country 26 times in all formats, taking 56 wickets. In total, he has taken 403 wickets in 207 career matches with 194 of those in first-class cricket
The pacer will play three County Championship matches and five Royal London Cup games for Kent based on his visa and regulatory approvals. He plays for Delhi in domestic cricket and played for Rajasthan Royals in the latest edition of India Premier League (IPL).
A number of allegations were made on social media following the close of the Day 4 of the match, which England won by seven wickets to draw the series 2-2.
The West Indian pacer is set to debut against Surrey at Scarborough on Monday, before taking on Somerset at Taunton and then playing Hampshire at North Marine Road later this month.
A section of Indian cricket fans were racially abused towards the end of Day 4. Several Indian fans made claims on Twitter that they had faced racist abuse from other fans during the match.