Senior Security Engineer

📋 Job Overview

Mathspace builds software that helps students learn mathematics, and schools trust us with their students' data. We are hiring a Senior Security Engineer to lead hands-on security work across our product, cloud and company systems. Our CTO is accountable for security; you will drive the work day to day as an individual contributor, with support from engineering and specialist partners when needed.

🏢 About Mathspace

We are mission-driven and reliably profitable, and we still move fast with a start-up culture. We use AI as fully as we can, across engineering and the rest of the company.

🎯 The Role

Our engineering team is fully remote, with engineers in Sydney, the Philippines and Europe. Our headquarters is in Cyprus, where this role is hired from. You can work from home or anywhere for part of the year, and at least six months a year from our coworking spaces in Larnaca and/or Limassol.

✅ Key Responsibilities

• Find and fix what matters most. Map our attack surface and sensitive data, prioritise real risks, and work with engineers to fix them in code, cloud configuration and the build pipeline.
• Scale our defence with AI. Build AI-assisted workflows for triage, code review, advisory analysis and evidence collection, with sensible controls on data, permissions and prompt injection.
• Strengthen identity and devices. Tighten SSO, MFA, privileged access, onboarding and offboarding, and improve device management coverage.
• Detect and respond. Improve monitoring where it is thin, respond to emerging threats, and build the playbooks for handling incidents.
• Move us toward SOC 2 and ISO 27001. Run a gap assessment, build a practical roadmap, and automate evidence so compliance becomes a by-product of good practice. The CTO and leadership own the decisions, and we bring in specialists where it helps.
• Support customer trust. Help answer school and district security questionnaires, and keep our security claims accurate.

📌 Required Qualifications

• Solid experience in cloud and web application security, ideally with AWS and Python. You can read unfamiliar code, reason about permissions and write automation.
• An AI-native way of working. You use AI tools every day, know where to trust them and where not, and understand risks like prompt injection and data leakage.
• Good judgement about what is urgent and what can wait, and clear communication with engineers and leadership.
• Comfort working independently in a small team.
• The ability to work at least six months a year from Cyprus.

⭐ Desirable Experience

• experience with SOC 2, ISO 27001 or a similar framework; device management, detection or incident response; or having been the first security hire somewhere.

🎁 Benefits

Mission-driven work: Help reimagine math education for students and teachers everywhere.
Meaningful scale: Your work will reach hundreds of thousands of learners across the globe.
Small team, big impact: We’re a lean, high-trust team where individual ownership matters.
Flexible work: We support remote work with flexibility to work while travelling
Support for growth: We offer a yearly stipend for training and professional development.
Do good beyond product: We partner with pledge1percent.org and offer 2.5 paid volunteer days annually.
Competitive salary and equipment: Including a MacBook Pro and any peripherals you need to do your best work.

🛂 Visa & Eligibility

You do not need to tick every box. If most of this sounds like you, we would like to hear from you. We assess demonstrated ability, not a particular degree, certification or previous employer.