Noémie is the French form of Naomi — from the Hebrew Na'omi (pleasantness, sweetness) — the matriarch in the biblical Book of Ruth. The biblical Naomi is the mother-in-law of Ruth — one of the central figures in the Book of Ruth; her line includes King David and (in Christian tradition) Jesus.
Noémie does not currently appear in the US Social Security Administration's top 1,000 girls' names, so we don't publish a US rank or birth count for it. That says nothing about the name's standing elsewhere in the world — only that it sits outside the ranked US data we rely on.
In Pythagorean numerology the letters of Noémie reduce to 4, The Builder. This is a traditional interpretive system, not a factual claim about the name.