Staff Software Engineer - Frontend

London, England

Company Overview

Metrea delivers effects-as-a-service to national security partners across five domains and more than a dozen mission areas. These include airborne ISR, electronic warfare, secure communications, aerial refuelling, special air missions, aerial firefighting, and advanced simulation. We own the whole stack: designing, building, and operating turnkey capabilities that give our partners decisive, asymmetric advantage against rapidly evolving threats.

Our operating model is built around three interlocking pillars. The Support Groups provide a global shared-service – spanning people, finance, platform, operations, legal, and engagement. This frees up our Core Groups, who develop and own mission capabilities end-to-end, to focus entirely on delivery. The Market Groups apply a regional lens, ensuring that our agile and adaptable capabilities remain aligned to the wicked problems that matter most to our partners across the Americas, EMEA, and Asia-Pacific.

At the heart of our model is a simple but powerful idea: be a true partner with skin in the game. Our partners need effects, not just equipment. By owning the full stack – from the lab to the field – we are able to drive a continuous cycle of innovation that keeps our partners ahead. It's a fast-moving, intellectually demanding environment where talented people are given real responsibility, work on problems that matter, and contribute to an enterprise that is growing quickly and deliberately.

Headquartered in Washington, DC, with facilities across the United States, the United Kingdom, as well as Continental Europe and Asia-Pacific.

Group Overview

The Digital and Synthetic Capability Unit (D&S) is committed to providing mission-driven information solutions that seamlessly bridge the digital and physical realms. Leveraging cutting-edge technologies and advanced platforms, we empower operational readiness and elevate situational awareness across diverse domains—including air, maritime, and space.

Position Summary

Metrea is seeking a dynamic and highly motivated individual to join our software development team, building software solutions that provide geospatial data processing and visualisations.

What You’ll Do

Lead the frontend development of product features, ensuring appropriate engineering decisions are made to factor in technical debt, systems design, stability/reliability, monitoring/observability and business need

Lead refactoring of complex systems or problems when it is warranted. Making pragmatic trade-offs between perfection and technical debt which align with the business priorities

Lead the design process for complex technical problems or new product features

Debug and resolve complex software issues at speed

Collaborate closely with your teammates, including being a significant contributor to code reviews, promoting good practices which will improve accessibility, performance, stability, security and overall quality of the code

Regularly mentor other less experienced engineers and help with onboarding new engineers to your team

Communicate clearly and articulately the risk of technical problems to non-technical stakeholders

Collaborate regularly and effectively with product, engineering and UI Design to ensure we maintain our delivery against the product roadmap

What You Bring

HND or BSc level qualification in Software Engineering or equivalent Computer Science related discipline

7+ years of demonstrable experience in an active software development role, developing web-based applications

Strong understanding of Web Platform capabilities—including Workers, WebSockets, and other low‑level APIs—and experience with browser graphics technologies such as Canvas and WebGL

Understanding and experience of team delivery in an Agile software development environment

Drive to learn constantly and further your knowledge

Strong organisational skills, proactive approach to task delivery and required documentation

Great interpersonal skills, able to confidently communicate and articulate technical issues to non-technical team members

In addition to the above, any of the following would be beneficial:

Experience building geospatial or visualization‑heavy applications

Experience of developing with C#

Experience using Kafka and/or Kubernetes within a service-based architecture

Experience working with relational and/or non-relational databases

Benefits

Private Medical Insurance

Subsided gym membership / plans through Wellhub

Electric Car scheme

Cycle to work scheme

Salary sacrificed pension scheme

Free lunch on office days

Enhanced Parental Leave

30 days annual PTO plus b/h

Bonus Scheme

Personal development opportunities

Equal Opportunities Statement

Position Type and Expected Hours of Work

This is a full-time non-exempt position with typical working hours of Monday through Friday, 9:00 a.m. to 6:00 p.m. Hours and work shifts may change in accordance with department and business needs. Exempt Employees must have the ability to be on-call and available, as business needs require. Non-Exempt employees may be required to work over 40 hours per week with approval from the department manager.

Work Location

Hammersmith, London. This role requires the employee to be hybrid, with 3 days per week working from the office in London.

Work Environment

This job operates in an office setting

Travel

This role may require occasional travel to other Metrea offices.

Our Firmware

At Metrea, our single core value is Rooted in Humility, and our four cornerstone attributes are Entrepreneurial, Systematic, Discerning, and Over-Deliver. These form what we call our Teammate Firmware. Just like technical firmware connects software and hardware, our Firmware is the constant interface between our mission and our people. It defines how we show up, how we work together, and how we solve complex problems.

Our team Firmware creates a web-like, hyper-collaborative, dynamically hierarchical way of working that helps us adapt quickly, communicate openly, and distribute decision-making to where expertise actually lives. It enables groups to self-organize around hard problems, shift fluidly as priorities evolve, and operate with the trust, curiosity, and discipline required in a complex mission space. This foundation allows us to deliver elegant, effective solutions and uphold our purpose: protecting our precious inheritance.

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