By Martin Baccardax A string of tech-sector beats has Nasdaq futures in the green Friday ahead of a crucial January jobs report at 8:30 am Eastern time. U.S. equity futures traded mixed mixed Friday as investors looked to claw back losses from the worst day for the S&P 500 in more than a year on the back of a string of tech-sector earnings beats ahead of a key January jobs report prior to the start of trading. A hawkish European Central Bank, as well as accelerating bets on a series of near-term rate hikes from the Federal Reserve, hit sentiment hard Thursday, with tech and other bellwether st…