Found on the Onyx family of YouTube channels, Onyx Family, Onyx Kids and Onyx Life, she is a YouTube personality who created family-friendly sketches and everyday vlogs alongside her family members. In 2019, she and her family landed a web series with pocket.watch called Onyx Family Monster Mysteries.
She and her family began to form their YouTube brand in 2015.
She has posted clips of herself singing on her personal Instagram account sinead.onyx.
She and the family attended Lindsey Stirling's Brave Enough Concert as seen in a vlog on their Onyx Life channel.