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Your Ads Aren't Broken. They're Misdiagnosed.
We run full-stack digital marketing for eCommerce brands doing
$10K–$500K/month.
Doing under $10K/month or still testing product-market fit? We're not the right partner — yet. Come back when you're ready to scale.
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Five Systems. One Goal: Profitable Revenue.
Most eCommerce brands aren't broken, they have one or two leaks killing the math. Here's what we diagnose and rebuild.
Social Media Marketing
Content strategy and execution across Instagram, Facebook, TikTok, and Pinterest designed to build brand equity and drive traffic.
Meta Ads and Google Ads
Stand out in a crowded digital space. Our targeted advertising approach ensures visibility to the right people, at the right time, with the right message. Say goodbye to ad spends that don't convert – we're all about maximising ROI.
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Engagement Growth
Customer interaction is the heartbeat of online presence. Our innovative techniques foster an environment that keeps your audience talking and engaging with your brand. We're in the business of building relationships, not just follower counts.
Built by an Engineer. Scaled Like One.
GScale Marketing is led by Guin Marie C. Hernaez, an engineer-turned-digital marketer who builds marketing systems the way she built systems in engineering: with logic, precision, and real results.
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Guin left engineering to build something that paid her what she was worth.
Her background in engineering is why her campaigns work: she diagnoses ad problems like technical problems, fixes what's broken, and scales what converts.
Questions We Get Asked
(A Lot)
Clear answers. No fluff.
We specialize in eCommerce marketing: Meta Ads (Facebook & Instagram), Google Ads (Search & Shopping), Klaviyo email marketing, social media management, Shopify conversion rate optimization, and done-for-you dropshipping stores. Every service is built to drive revenue, not vanity metrics.
Revenue. ROAS (Return on Ad Spend). Customer acquisition cost. Conversion rate. Email revenue contribution. We track what matters to your bottom line, not just impressions and likes.
Yes, our team is proficient in managing a wide array of social media platforms including but not limited to Facebook, Instagram, Twitter, LinkedIn, Pinterest, and TikTok. We stay up-to-date with the latest trends and best practices for each platform to ensure your content resonates with your target audience and achieves maximum impact.
We're engineers at heart. We don't guess, we diagnose, test, and optimize. We specialize in eCommerce only, so we know what works for product-based businesses. And we're accountable: our success is measured by your revenue growth, not how many meetings we book.
Book a free marketing audit. We'll review your current setup (ads, email, site performance), identify gaps, and show you exactly what we'd do to improve results. No pressure. No generic pitch decks.
Still have questions?
Let's talk. Book a free 30-minute strategy call with Guin and she'll walk you through exactly how we'd scale your store.
What our clients say
Don't just take our word for it, see what the awesome people we work with have to say.
Guin and her team came in, audited everything, and told me exactly what was broken and why.
We were averaging 3–4x ROAS before her. Within the first 60 days, we were at 8–12x ROAS consistently.
Black Friday we hit $400K in sales.
— Britni R.
They rebuilt everything. The targeting, the creatives, the way my budget was structured. Within 3 weeks, we were at 5x ROAS. By month two, we hit 10x consistently.
She's the real deal."
— Maddison S.
We hit 130K in under a year. The growth was steady, and the audience actually engages.
— Sara S., Farmer & Content Creator, USA