Cytidel

Senior Full-Stack Engineer (Remote/Hybrid)

  • Full-time
  • Engineering
  • Ireland

Why Cytidel

Cytidel is a venture backed company that enables security teams to cut through the noise and tackle the vulnerabilities that truly matter. By harnessing real-time threat intelligence, we highlight the 1% of issues that pose genuine riskβ€”often days or weeks before other sources.

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If you thrive in high-impact environments, enjoy solving complex challenges, and want to shape the future of proactive security, join us at Cytidel.


What You'll Do


πŸš€ Build & Own: Design, develop, and maintain full-stack solutions using C# .NET Core (back end) and React.js (front end).

πŸ“Š Database Expertise: Work with PostgreSQL and MongoDB, ensuring scalable, performant, and secure data storage.

☁️ Cloud & Infrastructure: Deploy and manage applications using Azure services and Docker containers in a resilient environment.

πŸ” DevOps & CI/CD: Establish and refine CI/CD pipelines for reliable and repeatable deployments.

πŸ›  Testing & Quality: Champion unit, integration, and end-to-end testing to maintain high-quality, maintainable code.

πŸ”’ Security First: Embed security best practices across the development lifecycle, from design to deployment.

πŸ’‘ Vision & Leadership: Work closely with the CTO and stakeholders to influence product direction, bringing fresh ideas and strategic insights.

πŸ‘₯ Mentorship & Collaboration: Guide junior engineers, drive engineering best practices, and foster a culture of clean code, code reviews, and scalable design patterns.

πŸ“ˆ Continuous Improvement: Identify and implement architectural and process optimisations, contributing to an innovative and learning-driven culture.

πŸ€–AI-Friendly: Utilise AI tools (like GitHub Copilot, GPT, Cursor, etc.) to simplify everyday coding tasks, improve productivity, and redirect time spent on boilerplate code to solving the interesting problems.

What We're Looking For

βœ… Knowledge of Clean Architecture principles and patterns like CQRS.

βœ… Experience with Infrastructure as Code (Terraform, Azure Resource Manager, etc.).

βœ… Background in cybersecurity or familiarity with security frameworks.

βœ… Prior experience in a startup or scaling SaaS applications.

βœ… Comfortable working in ambiguous environments, making informed decisions with incomplete data, and iterating quickly.

βœ… You've experimented with or regularly use AI tools (Copilot, GPT, Cursor, etc.) to make your development work quicker, easier, and more enjoyable.

Who You Are

  • You thrive in fast-moving environments and can make solid decisions even when information is limited.
  • You enjoy the challenge of solving complex problems and balancing technical trade-offs.
  • You’re collaborative, pragmatic, and proactive, always looking for ways to improve and grow.

Why Apply

  • Join an early-stage, venture-backed, startup with big ambitions
  • Work with a supportive and exceptional team in a professional and exciting environment
  • Shape our product and make key, impactful decisions from early stages
  • Employee share-options
  • 22 standard leave days plus extra company holidays
  • Remote & hybrid work options