Frontend Engineer in London

Valarian Technologies is a dual-use technology company building critical tools to safeguard the future in an era of evolving global security challenges. We're rethinking security beyond traditional military domains, addressing asymmetric threats that impact our technological advantage, economic strength, and democratic institutions.

We build Acra – the platform foundation for everything we do as a dual-use technology company. The platform’s name, rooted in the Greek word for citadel (or, fortress), reflects the design and purpose of our infrastructure-agnostic secure enclaves: protecting critical data. Some of the government and commercial workflows include: increased operational resiliency for mission-critical systems and functions; enabling organizations to more quickly and widely adopt emerging technologies while ensuring the integrity of their intellectual property; information flow during disaster response scenarios, and zero-trust / least-privilege environments for M&A, attorney-client privileged communications, etc.

At our core, we're driven by a shared mission and a belief in making a tangible impact on our world. Whether you join our London HQ or the wider global organisation, you’ll be a part of collaborative, high-performing teams, creating cutting-edge software, platforms, and infrastructure.

The Role

You will build frontend systems for secure compute, governed data, and operational workflows running in high-trust environments. You’ll work across product, engineering, and customer teams to design and ship interfaces for sensitive data operations, AI-native systems, and controlled execution environments. The role is highly collaborative and highly autonomous; we expect engineers to contribute to product decisions, frontend architecture, and user experience, not just implementation.

We are evolving the frontend platform toward independently deployable and composable application architecture, with shared interaction systems, reusable workflows, and clear ownership boundaries across the platform. We’re looking for engineers who are comfortable contributing across product decisions, frontend architecture, platform evolution, and user experience.

What you’ll do:

• Build and ship frontend features end-to-end
• Build well-tested, production-grade frontend systems
• Contribute to product and UX decisions across the platform
• Design interfaces for complex operational and data workflows
• Develop scalable React + TypeScript applications and reusable component systems
• Write high-quality code that can be easily understood and leveraged by others
• Work closely with product, engineering, and customers to shape workflows and validate solutions

What we are looking for:

• Strong experience building and shipping production Vue/React + TypeScript applications
• Strong understanding of frontend architecture, state management, and API integration
• Good product and UX instincts with attention to usability and performance
• Ability to take ownership of features and deliver independently
• Comfortable operating in fast-moving and ambiguous environments
• Strong communication and collaboration skills
• Experience building reusable UI systems or component libraries
• Experience designing composable frontend systems, reusable workflows, or modular application architectures

Nice to have:

• Experience with real-time or data-heavy applications
• Familiarity with secure or high-trust environments
• Experience with visualisation libraries or complex operational workflows

Benefits

Our benefits are designed to ensure our employees feel taken care of and are proud to be a part of the Valarian team. We are committed to consistently enhancing our benefit package, taking into account the overall well-being and needs of our teammates. Here are the key benefits accessible to all employees at Valarian Technologies:

• Equity – because you have the right to own what you’re building
• A competitive salary – because we value your unique skills
• Employer pension contributions – because you deserve a secure future
• Hybrid work setup – because everyone has different needs
• Rewarding company retreats and meetups that respect your work/life balance – because we love getting to know each other!

Life at Valarian

Our culture is built on inclusivity, compassion and flexibility – we want everyone to be empowered to achieve their goals at Valarian. The world is changing, and so is our way of working. If you want to join us in the London office – it’s quite nice! – you’re welcome to; and if you’d prefer to work remotely, that’s fine too.

And as we build elegant solutions to simplify the complexities of business collaboration, we also simplify work life: contribute wherever and whenever allows you to be your best self. We trust each other to consistently raise the bar, and we challenge each other to continually reach new heights.

We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.