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Senior Software Engineer - React - Vue - Angular - LLM - ML - C# .NET

Belfast
3 days ago
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Senior Full Stack Engineer - JavaScript - React or Vue or Angular - C# .NET - AI - LLM - GenAI - ML

As a Senior Full Stack Engineer, you'll join a small, high-impact team building AI-powered features for their products. You will be building systems that automate end-to-end workflows from document processing through to statutory filing to make a real impact on tens of thousands of our customers.

Working in a self-contained squad with the autonomy to make commercial and technical decisions without being weighed down by bureaucracy, you'll be responsible for architecting and building production-grade AI solutions that solve real problems for our users. As a senior member of the team, you'll set technical direction, mentor others, and drive quality across the full stack.

AI Integration & Development

  • Collaborate closely with the AI platform team to design and deliver compelling AI-first features and products

  • Integrate AI capabilities seamlessly into existing products, ensuring smooth user experiences

  • Build responsive, intuitive UI components that make complex AI functionality accessible to end users

  • Optimize AI service performance, cost, and reliability in production environments

    Technical Leadership & Delivery

  • Architect and implement scalable, production-ready AI-powered applications from front-end to back-end

  • Design and build performant, secure back-end services that integrate with our AI platform

  • Create user-friendly front-end interfaces for AI features using modern JavaScript frameworks or C# and Blazor

  • Lead technical decision-making within your squad, balancing innovation with pragmatic delivery

  • Drive best practices in code quality, testing, security, and observability

    Quality & Continuous Improvement

  • Write clean, maintainable, well-tested code with comprehensive documentation

  • Configure and maintain CI/CD pipelines with automated testing and deployment

    Skills

  • Full stack software engineering experience building production applications for the web.

  • Proven production experience building software powered by LLMs/GenAI/ML models - not demos or prototypes, but real systems serving users

  • Strong full-stack capability with expertise in: Modern JavaScript frameworks (React, Vue, Angular, etc.) or Blazor for front-end development

  • C# .NET for back-end services

  • RESTful API design and implementation

  • HTML5, CSS3, and responsive design principles

  • Cloud platform experience with Azure, AWS, or GCP

  • Production systems mindset including observability, testing, security, and reliability

  • Agile delivery experience in fast-paced, iterative environments

  • Strong collaboration and communication skills working effectively with technical and product stakeholders

  • Architectural thinking - ability to design scalable systems and make strategic technical decisions

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