Tassia O'Callaghan is a content writer and with over a decade of experience helping brands build their blogs and blog content.
She's spent much of her career working with small businesses and startups, and that passion for small business sits at the heart of how she approaches writing about AI and workplace tools. She knows firsthand how much time founders and small teams lose to email and admin, and how little margin they have for it. At Fyxer, she writes about AI, email management, and virtual meetings with that audience front of mind: People who need tools that actually work, without the overhead.
Tassia is an advocate for realistic sustainable living, supporting small businesses, and equity across different backgrounds. These values shape how she approaches every piece she writes.
Experience
- Content Writer, Fyxer
- Managing Editor, Rescripted
- Founder, Night Sky Creative (with clients including Office Christmas, DolarApp, Seen Fertility, Business Insider, Inspire the Mind, Friends Helping at Home, KYO, Agency UK, The Sweeping Company, Elite Joint Solutions)
- Content Marketing Lead, Tally Workspace
- Web Content Lead (SEO), Peanut
- Content Marketing Manager, Wired Media
- Marketing Manager, Chemical Watch
- Marketing & PR Executive, Wild & Wolf Ltd
Education
- Professional Marketing Level 4 Certificate from The Chartered Institute of Marketing (CIM)
- BA (Hons) in Drama Studies from Bath Spa University
Recent posts by Tassia O'Callaghan
How to select multiple emails in Outlook
Selecting multiple emails in Outlook doesn't have to be slow. Learn the fastest keyboard shortcuts and checkbox methods for every platform.
Networking email subject lines that get opened
Most networking emails fail before they're opened. Learn the subject line formats that change that, with examples for cold outreach and follow-ups.
Best AI email summarization tools (2026): How they compare
Not all AI email summarizers solve the same problem. See how they compare in 2026 and find out why inbox-level tools go further.