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Front-End Engineer (Contract)

Barbican
1 week ago
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UGHG76

Front-End Engineer (Contract) – Secure AI Systems for Defence

Contract | Inside IR35 | £600–£700/day | Hybrid / Secure Site | SC/DV Cleared | UK Nationals Only

Contract Length: Initial 3-month engagement (rolling), part of a 6–9 month roadmap

We’re supporting a cutting-edge AI organisation delivering a government-funded mission into the Defence sector. They’re seeking a talented Front-End Engineer to help build and iterate on user interfaces that bring complex machine learning outputs to life - transcription analysis, graph-based risk models, and natural-language interfaces for end users in secure, disconnected environments.

This is not your typical dashboard gig. It’s a chance to design and build offline-first, insight-rich tools that support real-world decision-making—where clarity and usability can have operational consequences.

What You’ll Be Doing:

  • Designing and developing React-based UIs for:

    • Live and retrospective transcription review

    • Graph navigation and data visualisation

    • Natural language querying

    • Insight generation and reporting

  • Building robust, offline-first interfaces that run in air-gapped, secure environments

  • Creating visualisation components (e.g., networks, timelines) to support scenario analysis

  • Integrating with backend APIs delivering LLM, NLP, and structured data outputs

  • Contributing to internal design systems and building reusable, scalable components

  • Collaborating closely with users and the wider delivery team to evolve features through feedback

    What You’ll Bring:

  • Strong experience building production-grade React applications with TypeScript, hooks, and modern state management

  • Proven capability delivering rich data visualisations using D3, Recharts, Plotly, or similar libraries

  • Experience creating interfaces that surface AI outputs; from LLMs, knowledge graphs, or analytics pipelines

  • Familiarity with design systems, accessibility, and responsive UI practices

  • Comfortable integrating front ends with data-heavy APIs or real-time backends

  • (Bonus) Prior experience in Defence, government, or enterprise-class security environments

    Why This Project?

    You’ll be building the front end of real AI-powered tools for Defence decision-makers where clarity, usability, and reliability matter. From edge deployments to secure systems, this is work that will be seen, used, and relied on

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