The Platform
Get the most of Crypto Twitter
Marketing Copywriter
Kast
Marketing & Communications
Remote
Posted on Nov 12, 2025
About KAST
KAST is redefining what it means to bank with stablecoins - think Revolut, rebuilt from scratch on Web3. Backed by top-tier VCs, we’ve grown from 0 to 1 million users in under a year. We’re building the next-gen global bank based entirely on stablecoins.
Design is at the heart of everything we do - it’s how we simplify the complex, make money feel easy, and turn crypto skeptics into brand ambassadors.
KAST is a fast-growing force in the financial technology and startup landscape. We are building the future of financial services with a focus on innovation and speed. Our culture thrives on bridging product excellence with aggressive growth, and we are looking for a key player to join our mission-driven team.
The Role
The Marketing Copywriter will own voice and narrative across growth surfaces—landing pages, paid ads, lifecycle (email/push/in-app), and product UI. You’ll turn complex fintech/Web3 ideas into crisp, high-converting copy that performs in Brazil, MENA, and beyond.
What You’ll Be Doing
- Conversion Copy: Ship A/B-tested copy for landing pages, ad creatives, app store, and paywalls that move CTR, CVR, and CPA in the right direction.
- Lifecycle + CRM: Partner with Growth to write Braze campaigns (onboarding, KYC, deposit, first spend, referral).
- Product/UI Microcopy: Craft tooltips, error states, and empty states that reduce confusion and drop-off.
- Messaging Frameworks: Build positioning, value props, and tone guidelines for country launches (e.g., PIX Brazil).
- Compliance Friendly: Write clearly within fintech/legal guardrails without sounding like a robot.
What You'll Bring
- 3–6 years in copy for fintech/consumer tech or performance-driven brands.
- Proven portfolio with measurable lift (CTR/CVR/LTV).
- Fluency in A/B testing and using data (GA4, Mixpanel, AppsFlyer) to iterate.
- Excellent short-form chops; long-form range a plus.
Preferred
- Crypto/Web3 exposure; understands stablecoins and on/off-ramp basics.
Why KAST?
- Build and own KAST’s community presence in your city from the ground up.
- Host events, connect founders and VCs, and shape how our brand lives locally.
- High autonomy, creative freedom, and the chance to directly influence our global growth.
- Join a no-BS, high-energy team on track to be the next unicorn.
How To Apply?
We hire through referrals, networks, and a proven ability to execute.
Send your resume (or LinkedIn/X profile) to careers@kastcard.com
Interview Process
Initial Interview → Second Interview → Writing Exercise (live brief) → Final Interview
