Front End Developer - DV Cleared

Front End Developer

£500-£540 per day | Outside IR35

React | TypeScript | Secure, Analyst-Facing Applications

LocationLondon (MOD site)
Working Pattern4 days per week onsite
ClearanceCurrent DV Security Clearance required
BackgroundMOD/Defence/National Security experience required

The Opportunity

We're looking for an experienced Front End Developer to build intuitive, secure and role-aware interfaces for a next-generation Defence Intelligence platform.

You'll work closely with UX Designers, Back End Developers and wider delivery teams to turn complex operational requirements into accessible, maintainable and high-performing applications that improve visibility, streamline workflows and support users in a mission-critical environment.

This is an excellent opportunity to work on modern digital capabilities within a highly secure Defence environment.

About the Programme

This programme is delivering an AI-enabled Defence Intelligence capability designed to improve visibility of operational information, reduce administrative burden and support faster, more informed decision-making.

As part of an agile, multidisciplinary team, you'll help deliver modern Front End applications that integrate with secure Back End services and existing Defence platforms.

Key Responsibilities

• Develop and maintain Front End applications using React and TypeScript.
• Build reusable UI components aligned with a coherent design system and component library.
• Work closely with UX Designers to translate user journeys, wireframes and prototypes into production-ready interfaces.
• Integrate Front End applications with REST APIs, workflow services and identity/access mechanisms.
• Develop role-aware dashboards, task views, status tracking and operational work queues.
• Apply accessibility, responsive design and usability best practices.
• Participate in agile ceremonies, sprint delivery, demonstrations and user feedback sessions.
• Contribute to Front End testing, quality assurance and continuous improvement.

Essential Skills & Experience

• Demonstrable experience delivering software within MOD, Defence, National Security or similarly secure environments.
• Strong commercial React development experience.
• Strong TypeScript capability.
• Experience consuming REST APIs and collaborating closely with Back End engineering teams.
• Experience building responsive, accessible and maintainable user interfaces.
• Good understanding of component-based development and design system principles.
• Experience using Git within agile delivery environments.

Desirable Experience

• Experience working with Figma and modern UX/design workflows.
• Experience with Material UI, GOV.UK Design System, MOD design patterns or equivalent component frameworks.
• Experience developing workflow-driven applications.
• Experience implementing secure authentication and role-based access control.
• Experience developing search-led user interfaces.
• Experience supporting applications deployed in classified or highly regulated environments.

Mandatory Requirements

• Current DV Security Clearance.
• Ability to work onsite at an MOD location in London four days per week.
• Previous experience delivering within MOD, Defence, Defence Intelligence, Strategic Command or wider National Security organisations.
• Comfortable working with OFFICIAL-SENSITIVE and classified material where authorised.

Ways of Working

• Agile delivery within a multidisciplinary team.
• Close collaboration with Defence stakeholders, Product, Delivery, UX and Engineering teams.
• Secure-by-design approach with a strong focus on audit, traceability, access control and assurance.
• Practical focus on creating intuitive, reliable applications while maintaining operational accountability.

What We're Looking For

We're interested in Front End Developers who can demonstrate:

• Successful delivery within secure MOD or Defence environments.
• Strong React and TypeScript development experience.
• The ability to turn complex UX requirements into accessible, maintainable and intuitive interfaces.
• Excellent communication skills across technical and non-technical stakeholders.
• A practical understanding of agile delivery and modern Front End engineering.
• Awareness of secure system delivery, accreditation considerations and operational governance.

Rate: £500-£540 per day (Outside IR35)

Location: London (4 days onsite)

Clearance: Current DV Security Clearance required