About
(01)
I work with founders and marketing teams across creator marketing, content, social and fractional marketing strategy.
My core focus is building and scaling creator and influencer marketing programs, including strategy, creator sourcing, outreach systems, campaign processes, team training, reporting and ongoing optimisation.
I also support brands more broadly across content and social strategy, helping identify what is working, where the gaps are and what systems need to be built to make marketing more effective and scalable.
My work ranges from one-off consulting and audits through to embedded fractional support, where I help shape strategy, build processes and work alongside internal teams to turn plans into execution.
I’m very strategy-led, but I’m also practical. I like figuring out what the business actually needs, what’s getting in the way, and how to turn the plan into something that works day to day.
Brand thinking. Creator instincts. Consumer brain.
(02)
Every now and again you meet somebody who is a magnet that attracts opportunities and makes their own luck. After working with Sienna for 6+ years, this is her superpower — plus she can execute and get it done like the best. An actual star
Gretta van Riel
Founder, The Oodie · Forbes 30 Under 30
(03)
2025 — Present
Fractional marketing strategist
Embedded senior marketing support for consumer and eCommerce brands, spanning strategy, creator programme design, campaign leadership, content direction and the systems internal teams need to scale.
2020 — 2026
Hey Influencers — Senior Campaign Strategist / Influencer Marketing & Partnerships Manager
Six years leading creator campaigns for consumer brands across gifting, always-on programmes, product launches, macro partnerships and performance campaigns across Instagram, TikTok, YouTube and Twitch.
2020 — Present
UGC creator & creator coach
First-hand experience working from the creator side, developing concepts, producing social-first content and navigating briefs and partnerships, which shapes how I brief, negotiate with and direct creators for brands.
(04)
28M+
Views
$1M+
Revenue generated
10K+
Creators worked with
15K+
Collaborations
1B+
Reach
Let’s talk
Whether you’re building a creator program from scratch, trying to scale what you already have, or need a clearer strategy across creator, content and social, I can help.
Let’s work together.