AI-Native Senior Developer

For over 35 years, F-Secure has led the cybersecurity industry with our 200+ service provider partners. As the home of scam protection, we're reimagining how we protect people from modern threats through cutting-edge scam detection and solutions that are setting the industry standard. We bring together the sharpest minds of cyber security with a shared purpose: to protect people from modern threats. Here, you’ll have a real impact, making every digital moment more secure for everyone. You’ll thrive and grow in our Fellowship culture, where we dream big, trust, and challenge each other to deliver results and move with speed. You’ll be welcomed into a diverse, global team with an informal and collaborative culture where your voice truly matters.

Join us in securing the digital world together – where your work will make a lasting impact.

We're looking for a AI-Native Senior Developer to help us build and grow Horizon, F-Secure's new self-service platform for commercial partners to sell cybersecurity subscriptions. We launched Early Access in December 2024, and now we're scaling from our limited Early Access Program to infinity. As our AI-Native Senior Developer you'll own the implementation of the growth loops, both B2B (partner acquisition and engagement) and B2C (end-customer activation and retention). This means building the systems that show us where to focus, then building the AI-powered tools that multiply our impact. This isn't optimizing an existing funnel, it's building the growth engine from scratch with an AI-native team that ships fast.

Our engineering team uses AI as the default, not an add-on. We build with Claude Code, ship features in days not weeks, and expect you to work the same way. If you're still debating whether AI tools are useful, this isn't the role for you. If you've already integrated them into how you think and build, keep reading.

You'll join a small, fast team: 4 engineers building the platform, a 5-person data team focused on analytics, and UX, marketing, and product working closely together. We're based in Helsinki with hybrid work (1-2 days/week in office). Our HQ was renovated in 2025, topped with a rooftop sauna, and a fully equipped gym.

Key Responsibilities In This Role

Wire up full visibility across both growth loops

• Connect the analytics stack end-to-end
• Build dashboards that show the complete partner and end-customer journeys
• Implement UTM attribution from ad click to churned subscription
  
  

Build AI-enhanced growth systems

• AI-powered promotion suggestions for partners
• Intelligent lifecycle messaging that adapts to behavior
• Predictive models for churn risk and expansion opportunities
• Growth recommendations based on partner segment patterns
  
  

Scale and automate

• Growth AI agents that identify and act on opportunities
• Automated campaign optimization
• Self-improving personalization systems
• Marketing attribution AI
  
  

What are we looking for?

• AI-native workflow, you already use LLMs daily to code faster, not as an experiment
• Full-stack development with React and Node.js
• B2B2C or partner/channel business experience, and growth engineering background
• Startup/scale up experience, you know how to move fast and make decisions with incomplete information
• Marketing technology understanding including SEO, SEM, marketing automation, CDPs, and attribution
• Analytical mindset: You use data to decide, not just to report
• Full professional proficiency in English
  
  

You Get Bonus Points For

• Hands-on experience with Braze and Hightouch
• AWS (or equivalent cloud) experience
  
  

What you will get from us?

• Welcome to the good side – the home of scam protection! Work with industry-leading experts defining the future of cybersecurity and scam protection
• Be an AI pioneer, not a follower. Access industry-leading tools like Claude and Claude Code, with full support to integrate AI into your daily work while others are still figuring out policies. We're not asking "if" but "how" AI transforms our work, positioning you at the forefront of the industry.
• Thrive in our Fellowship culture where we empower, trust, challenge, and support each other in doing our best work.
• Flexible work that works for you – hybrid and remote options with team-agreed ways of working.
• Inclusive environment with flat, approachable leadership in our diverse global community.
• Comprehensive global benefits including Employee Share Savings Plan (ESSP), Fellow Member of the Board opportunities, and Annual Protect & Educate paid volunteer day.
• Wellbeing support through personal coaching services and one hour per week for personal recharging.
• Continuous growth via F-Secure Academy, Leadership programs, AI training, mentoring, and dedicated Learning Week.
  
  

Our local benefits include extensive health care, remote working, company supported sport activities, lunch vouchers, regular massages and sauna at the premises and many more things to keep our greatest asset -- our Fellows -- happy!

A security vetting will possibly be conducted for the selected candidate in accordance to our employment process.

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