Principal Python Developer

Principal Full Stack Engineer (Python/React)

Ireland (Remote-first)

I'm working with an exciting start-up in Ireland who is seeking a Principal Full Stack Engineer with deep expertise in Python and React to build intuitive, high-impact software.

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• Lead the design and development of full-stack applications, with a strong emphasis on React-based frontends and Python backends.
  
• Build high-performance, intuitive UIs for complex analytical and investigative workflows.
  
• Set and influence architecture, technical standards, and engineering best practices.
  
• Collaborate with product, design, and domain experts across security and investigative contexts.
  
• Provide technical leadership and mentorship, guiding engineers across multiple projects.
  

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• Strong professional experience with Python and Fast API on the back end.
  
• React and TypeScript on the front end.
  
• Proven ability to design and deliver scalable, production-grade full-stack systems.
  
• A passion for creating clear, usable interfaces in complex problem domains.
  
• Experience operating at a principal or lead level, balancing hands-on development with strategic technical direction.
  
• An interest in building impactful systems within security, defence, or investigative environments.
  
• Ability to operate in a start-up/scale-up environment and own/build the end-to-end system of a set of features. xcfaprz
  
• Experience across a broad range of languages, technologies, and AI components.
  

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• Python
  
• React
  
• TypeScript
  
• Fast API
  
• Kubernetes
  
• Architecture
  

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• Work From Home