In Job, Ha-Satan is a member of the divine council who challenges the righteousness of humans, rather than an embodiment of evil.
Leviticus 16, Azazel is a scapegoat "demon" (one goat is sacrificed to god and one is sent to the wilderness to carry the sins of man to Azazel, who might be a nature spirit/ daemon or just the challenges of surviving a rocky and rugged place).
Isaiah 34:14, various later Jewish folklore, originally mentioned lilith(s) as a desert creature(s); it is only later folklore depicts Lilith as a demoness.
Dead Sea Scrolls, The War Scroll. Seen as a leader of the forces of darkness, Belial comes up as a personification of wickedness (noting that not all of these texts were accepted by all Jewish authorities). 
Book of Jubilees. Tempting and testing humans, Mastema is an angel of disaster and adversity.
Isaiah 14:12-15 "Lucifer" Latin translation of lightbringer/ the morning star, referring originally to and mocking a Babylonian king as  "Helel ben Shachar" (the morning star) and was only later reinterpreted as the devil.
2 Kings 1:2-3, 6, 16 and later in Matthew 12:24, First refers to Baal-Zebub / Bealzebub when King Ahaziah of Israel sends people to ask if Baal-Zebub (meaning "lord of flies) a god of Ekron, could heal him. "Lord of flies" is a condescending revision of Baal-Zebl or lord of lords/ lord of the high place.
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