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Security Engineer

Remote from Spain·Full-time·Added yesterday (last checked 9 Nov)

EverAI

10 open roles

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Our summary

Salary
€65,000 - €85,000 a year
Hours
Includes night work · Includes weekends
Work mode
Remote from Spain
Contract
Freelance, full-time hours
English
Required
Experience
2+ years
Benefits
Private health insurance

Visa options

  • The ad doesn’t mention sponsorship

    No sponsorship mentioned, and this kind of work is rarely sponsored in Spain.

  • Pay clears the EU Blue Card threshold

    The advertised pay is over the €41,356 bar, so the route exists if EverAI uses it.

More jobs over the Blue Card threshold

Skills

Requirements

What we're looking for

  • 2+ years of hands-on security experience

  • Hands-on AppSec, not compliance only: you review code regularly and can walk us through a real vulnerability you found and fixed

  • Audits and pentests: you've coordinated an external audit or pentest and followed the findings through to fixes

  • Engineering workflows: you ship code with Git/GitHub, script in Python or Bash, and have recent hands-on work on a modern web stack (e.g. Rails, Node; GCP, Heroku or similar)

  • Ownership with little support: you've been the sole or lead security person, or owned a security area on your own. You've reviewed code or tested systems every week in the last 2 years, and you explain risk clearly to non-technical people

  • AI in your daily work: you use AI tools every day in your security work

  • A hacker mindset: You love breaking things to make them safer, and security isn't only your job: you do it for fun too, through bug bounties, CTFs, research, write-ups or your own tools.

Nice to have

  • ⭐ AI/LLM security testing (prompt injection, jailbreaking): a strong plus

  • Experience at an AI company or a scale-up

  • GRC awareness

  • Familiarity with MDM and access management

Languages

🗣 Strong communication & collaborative skills (perfectly fluent in English)

Pay & benefits

What you'll get

📈 Exponential Growth: From 50M users in 2 years, to 100M next - and 500M beyond

🚀 Track Record of Category-Creating Innovation: We consistently launch world-first AI applications - setting the pace, not following it

🌍 Global Impact: Top-tier user growth, real-world adoption, and cultural relevance

🧠 Proven Leadership: A senior team that's launched, scaled, and exited & IPO'd multiple scale ups - now fully focused on reshaping AI companionship

👥 Elite Remote Team: 100% remote and built to win - world-class talent from Tier 1 tech companies, with a culture of ownership, velocity, and radical creativity

🛡️ Ethical Core: Our AI ecosystem is governed by EverGuard, our proprietary AI moderation technology, ensuring responsible development at scale

✍️ Contract Type: We prefer B2B, but we're flexible, what matters is long-term commitment and impact
📍 Work From Anywhere: Fully remote. Choose the environment where you do your best work
🏝️ Paid Time Off: 4 weeks (20 working days) of PTO per year to recharge and reset
👨👩👧👦 Annual Gathering: A yearly in-person meetup to connect, brainstorm, and celebrate wins together
❤️🩹 Health & Wellness Support: Monthly allowance of 100 USD for health insurance expenses & access to unlimited 1:1 sessions with psychologists and lifestyle experts through OpenUp (also available to up to three of your family members)
🏢 Co-Working Space Budget: Work from a co-working space up to twice per month (35 EUR / 40 USD per visit) to stay inspired and connected
📚 Learning Budget: Dedicated funds to support your professional growth: courses, books, conferences, events, or certifications
💻 Company Laptop & Equipment: Laptop provided + monitor budget up to 250 USD + keyboard/mouse/mic/headphones budget up to 150 USD
⚡ AI Tools Access: Premium access to ChatGPT, Hugging Face, Claude Code, and any other tool needed to excel at your job, power your ideas and workflows

The role

🚀 EverAI - Building the Future of AI Companionship

One of the Top 15 Largest & Fastest-Growing AI Companies in the World

50 Million Users in 2 years - Help Us Reach 100M first, 500M next

At EverAI, we're shaping what it means to connect with AI. With 50 million users and counting, we're not just building products - we're creating entirely new categories.

Our flagship product is the world's largest AI companionship platform, redefining relationships for millions. It is governed by our proprietary moderation system, EverGuard - an internal AI designed to ensure everything we build is safe, ethical, and human-first.

And we're only just getting started!

As a Security Engineer, you'll own application security for a fast-growing AI companionship platform. This is a hands-on AppSec role: you'll review code, find real vulnerabilities and drive fixes across the stack. You'll be the main security person in the company, reporting directly to our CTO and Co-Founder. You'll set direction yourself and explain risk clearly to non-security colleagues. Our product includes AI-generated content, including NSFW content, and you'll also keep an eye on AI-specific threats like prompt injection. Real ownership from day one.

This isn't an infrastructure, networking or DevSecOps role: we're looking for application security depth.

What you'll do

  • Review code every week to catch vulnerabilities before they ship

  • Find, prioritize and drive fixes for real vulnerabilities across the stack, not surface-level issues

  • Coordinate external security audits and penetration tests

  • Challenge findings where needed, and follow them through to fixes

  • Automate security work and build the tools you need to scale it

  • Use AI tools daily in your security work: code review, pentests and scripting

  • Own security end to end with little support, and decide what matters most

  • Explain technical risk in plain words to the team and leadership

  • Cover security alerts, including occasional night and weekend on-call

  • Keep a simple risk register and GRC documentation up to date

  • Share security updates with the team and run awareness training

  • Watch emerging AI threats (prompt injection, jailbreaks, content filter bypass) and incidents at our AI providers

Soft Skills

🧢 Goal-orientated, ownership and commitment

⚡️ Doer mindset - we are moving fast and we need people who can find the right balance between executing, planning and strategy

🧢 Humble - willing to learn, open to feedback

🍭 #NSFW - you are comfortable working in an environment with products that are based on uncensored models and content

About EverAI

EverAI is a Barcelona-based company developing consumer AI applications, operating in the rapidly growing AI consumer apps sector. The company focuses on building AI-powered products for a global audience, with a strong emphasis on performance marketing and product-led growth. While its exact scale is not publicly detailed, its remote-first hiring across Europe and worldwide indicates a distributed, international team structure.

EverAI's Spain presence is centered in Barcelona, where the company was founded and maintains its core operations. The company embraces a fully remote work culture, offering roles across Europe, Spain, and worldwide, making it an attractive option for international professionals seeking flexibility. With a focus on senior-level roles in engineering, product, design, and marketing, EverAI offers opportunities for experienced professionals to contribute to cutting-edge AI consumer products in a dynamic, startup-like environment.

Industry
AI Consumer Apps
Employees
100
Headquarters
Barcelona, Spain
In Spain
Barcelona

Good to know if you are moving

  • Fully remote roles across Europe, Spain, and worldwide, offering flexibility for international professionals.
  • Based in Barcelona, a major European tech hub with a vibrant startup ecosystem.
  • Focus on senior-level roles in engineering, product, and marketing, indicating a preference for experienced professionals.
  • The company is in the fast-growing AI consumer apps sector, offering exposure to cutting-edge technology.
  • As a Spanish-founded company, it offers a unique opportunity to work in a local startup with a global reach.

In their own words

About the company & team

We are an enthusiastic, passionate and hardworking team of ≈ 100 people. Our founding team has strong entrepreneurial experience building and scaling web products from 0 to IPO.

Alexis Soulopoulos [CEO]

  • 10+ years in Tech Executive Leadership
  • Co-Founder Mad Paws Holdings (from 0 to IPO)
  • Forbes 30 under 30 + Deloitte TechFast50 '22 & '23

Michael Monin [Co-founder & CTO]

  • 10+ years as CTO / COO (web2/web3), 3 years in AI/LLM
  • Serial-entrepreneur: MTK Digital (exited / 0->$20m revenue) and Zipchat (AI Chatbot for E-commerce brands)

Thomas Lacroix [Co-founder & CMO]

  • 8+ years in Customer Acquisition & E-commerce Growth
  • Serial-entrepreneur: Curatible (sold to Blackstone) and MTK Digital (exited / 0->$20m revenue)

Maruša Fasano [CFO/Legal]

  • 25+ years in Finance, Strategy, M&A
  • Ex-CFO/M&A @Curatible (exited to Blackstone)
  • Ex-President of the Board @SotremoSA (exited)
  • Co-founder/CFO @SoftOne (exited)

Additional information

We're a fully remote group of A-players from Tier 1 tech, led by an exec team who've launched, scaled, and exited multiple companies. We move fast, and care deeply about what we build - and who we build it with.

We're looking for exceptional talent ready to ship & distribute world-first AI products at scale, fast, and co-create with us this category-defining business.

If that's you - reach out and apply!

All open roles at EverAI

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