The Company Founded in ****, Filigran is a global cybersecurity company on a mission to empower defense teams to be proactive through open-source solutions that uncover threats and drive action. Filigran stands out in the cybersecurity ecosystem through its open-source, AI-powered and threat-informed approach to Continuous Threat Exposure Management (CTEM). Our e Xtended Threat Management (XTM) platform brings together threat intelligence, exposure validation and cyber risk reduction, enabling organizations to better understand their threat landscape and take action. Our vision is to unite defenders into a global community to make security more open, resilient and collaborative. As Filigran continues to scale globally, we are building the organization, infrastructure and capabilities needed for our next stage of growth. The Role We're looking for a Senior Software Engineer who is genuinely, deeply convinced that AI is transforming the way software gets built, and who wants to make that transformation happen at Filigran. This isn't a "we bought Copilot, please roll it out " role, and it isn't only a tooling or development role either: part of the job is building, part of it is trying things on real work, measuring them and telling teams honestly what works and what doesn't. This is a practitioner role for someone who has already lived this shift, who experiments constantly, who knows what works and what doesn't, and who can bring 60 engineers along on that journey. Run structured experiments to evaluate new AI coding tools and agents (Cursor, Git Hub Copilot, Cline, MCP servers, code generation agents...), measure their real impact on velocity and quality, and translate findings into actionable recommendations. Build the guardrails and engineering standards that ensure AI-generated code is maintainable,



tested, and consistent with our quality bar — not just fast to produce. Work directly with product engineering teams (~80 engineers) to embed AI practices into their day-to-day workflows: pair programming with AI, AI-assisted code review, test generation, documentation, and beyond. You'll be the one tracking it, filtering the noise, and surfacing what actually matters for a team like ours. Work in the XTM Foundation team to turn AI practices into shared building blocks for every product team: agent workflows in our CI pipelines (dependency updates, flaky test triage, review assistance), shared MCP servers and prompt libraries, versioned AI configuration in the repositories, and written rules on tools and data handling that apply to everyone. Contribute to Filigran's external voice on AI-Native engineering — blog posts, open-source contributions, conference talks — as the opportunity arises. Profile We're Looking For 7+ years of software engineering experience — you are a strong engineer first. You've already transformed how you build software, you can show what you built and what you measured, and you want to help others do the same. Deep, hands-on familiarity with the current AI coding tooling landscape: agentic coding tools, LLM-powered code review, prompt engineering for development workflows, MCP ecosystems, and what's coming next.



Strong full-stack engineering background — you can evaluate AI output across the whole stack and contribute code yourself when it matters. off with a skeptical senior engineer just as well as you can help a junior developer get started. Comfortable working in a remote-first, async culture with teams across multiple time zones; clear communicator in English. Bonus: experience with open-source communities, cybersecurity domain knowledge, contributions to AI tooling projects, or public writing/speaking on AI-Native engineering. We are a fast-growing, global and remote-first company, and we believe the best work combines purpose, impact and innovation. You'll work alongside talented people across the world who care about what they build, how they build it, and the impact they make on the broader cybersecurity ecosystem. You're contributing to technology and ideas that strengthen a general community of defenders and help make cybersecurity more open and collaborative. Work at the edge of what's next We bring together cybersecurity, open source and AI — giving you the opportunity to work with emerging technologies, experiment with new ways of working, and contribute to how they are applied in practice. Global opportunity without borders Be part of a fast?growing, truly international team — collaborating across Europe, North America, APJ and beyond, with the flexibility of a remote-first environment. What you can expect Competitive compensation + equity — everyone shares in our success Remote?first flexibility — work from wherever you're based, with flexibility built into how we operate 25 days PTO baseline — real time to disconnect, recharge and enjoy life outside work Volunteer days — paid time to contribute to causes that matter

📌 Full Stack Senior Software Engineer (España)
🏢 Filigran
📍 España