Junior Marketing Specialist

September 21, 2026

Remote

Junior

Madrid, Spain

Important before applying

This job has conditions that may affect your decision to apply

English is required

Description

A fast-moving startup building AI-native, chain-agnostic infrastructure for the full lifecycle of digital assets, covering token design, economic simulation, deployment and on-chain management. The team is hiring a Junior Marketing & Growth Associate to work hands-on across marketing, content, growth, product launches, partnerships and events alongside the founders. The role suits a proactive, curious generalist who can translate complex product and technical concepts into clear, engaging marketing content. The position is based in Madrid, Spain.

Responsibilities

Create and manage content for LinkedIn, X, newsletters, blog and other channels
Translate complex product and technical concepts into clear, engaging marketing content
Support product launches, announcements, partnerships and ecosystem campaigns
Manage social media presence and the content calendar
Create basic visual content and coordinate with designers when needed
Research trends, competitors, protocols, ecosystems and relevant industry conversations
Support community and ecosystem growth across blockchain networks and partners
Prepare marketing materials for conferences, accelerators, partners and investors
Support the team before, during and after industry events
Track marketing activity and performance to understand what is working
Experiment with new formats, channels and growth ideas
Jump in wherever the team needs support to get something across the finish line

Requirements

0–2 years of experience in marketing, communications, growth, content or a related field
Excellent written English; Spanish is a plus
Strong communication and writing skills
Comfortable with social media and digital content
Highly organized and able to manage several things at once
Good visual judgement and attention to detail
Interest in AI, Web3, fintech, blockchain or emerging technology
CET timezone is a big plus
Motivated, passionate, proactive and curious mindset with a hands-on attitude
Team player who takes ownership, helps others and does not operate in silos
Resourceful, reliable and comfortable with change in a fast-moving startup
Nice to have: previous experience with a startup or technology company
Nice to have: familiarity with Web3, crypto or blockchain
Nice to have: experience with tools such as Figma, Canva, Notion or HubSpot
Nice to have: basic video editing or design skills
Nice to have: experience managing social media accounts or creating digital content
Nice to have: familiarity with analytics, SEO or paid acquisition

Conditions

Very hands-on role spanning marketing, content, growth, launches, partnerships and events
Work in a small team with shared ownership and no rigid job boundaries
Fast-moving startup environment where priorities evolve and everyone adapts
Based in Madrid, Community of Madrid, Spain

LinkedInXFigmaCanvaNotionHubSpotblockchain / web3 / digital assetsWeb3cryptoblockchain

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