Onlano
Frontend DevelopmentOnsite

Staff Software Engineer - Frontend

Metrea - Company

London, UK, ๐Ÿ‡ฌ๐Ÿ‡ง United KingdomFull-time - Principal (10+ years)0 applicantsCloses Jun 21, 2026

Salary

GBP 57,937 - 57,937 / year

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Job description

Job details

  • Location: London, UK
  • Work mode: Onsite
  • Employment type: Full-time (Not an internship)
  • Salary: GBP 57,937 per year

Role overview

Metrea is hiring a Staff Software Engineer - Frontend in London, UK. This is a full-time, onsite position focused on building mission-critical frontend systems for national security applications. The role offers a salary of ยฃ57,937 and involves working on advanced capabilities across airborne ISR, electronic warfare, secure communications, and simulation platforms. You will architect and deliver high-performance user interfaces that support effects-as-a-service for defense and security partners.

Job details

This position is based in London, UK, and is an onsite role. The employment type is full-time. The salary is ยฃ57,937 per year. You will work on frontend architecture for complex, mission-critical systems serving national security clients across multiple domains including aerial operations, electronic warfare, and secure communications.

Responsibilities

  • Architect and build scalable frontend systems for national security applications
  • Lead frontend engineering efforts across airborne ISR and electronic warfare platforms
  • Design high-performance user interfaces for mission-critical defense systems
  • Collaborate with cross-functional teams on secure communications and simulation tools
  • Establish frontend engineering standards and best practices for the team

Requirements

  • 10+ years of frontend software engineering experience
  • Expert-level proficiency in JavaScript, TypeScript, and modern frontend frameworks
  • Strong background in building complex, high-performance web applications
  • Experience with mission-critical or security-sensitive systems preferred
  • Excellent architectural design and technical leadership skills
  • Eligibility for security clearance or clearable status

Benefits

  • Work on cutting-edge national security technology
  • Competitive salary and benefits package
  • Opportunity to deliver decisive capabilities for defense partners
  • Collaborative, mission-driven engineering culture

Keywords

FrontendJavaScriptTypeScriptReactSoftware ArchitectureUI EngineeringNational SecurityMission-Critical Systems