Sr. Frontend Engineer - Graph UI

Salary: £45,500 - 73,500 per year

Requirements:

• We are looking for a highly skilled and experienced Senior Frontend Engineer.
• We need proven experience delivering scalable front-end architecture in large organizations.
• We need prior experience working on visuals, whether using a library or browser APIs.
• We require strong expertise in front-end technologies and frameworks.
• We value excellent communication skills and the ability to collaborate with cross-functional teams.
• We expect the ability to contribute at a high level while fostering a collaborative environment.
• We look for proven experience using AI technologies to enhance decision-making, streamline workflows and processes, improve efficiency, and drive business outcomes.
• Bonus points if you have experience with Keylines, D3.js, or Three.js.
• Bonus points if you have experience crafting complex visuals in a browser environment.
• Bonus points if you have knowledge of micro front-ends and web components for framework-agnostic application shells.
• Bonus points if you have experience with graph systems or graph theory.
• Bonus points if you have experience with declarative UIs.

Responsibilities:

• Lead the design and development of large UI features in our graph system.
• Work closely with the graphs team tech lead to architect a sustainable and ergonomic graph system.
• Collaborate closely with product design, UI engineering, cloud engineering, and other stakeholders across the organization.
• Leverage and optimize our existing use of Keylines to create visuals.
• Work with external Keylines stakeholders to get the most out of our Keylines usage.
• Navigate projects through our software development lifecycle, ensuring goals are met on time and projects move toward completion.
• Develop large graph features that impact thousands of customers and use millions of data points.
• Work with design, back-end teams, and product management to find the best solutions for displaying complex visuals with a variety of back-end data layer conditions.
• Pair with our more junior team members to grow their skills in creating visual features.
• Contribute to a collaborative and inclusive environment.
• Ensure seamless integration of the UI with backend services.
• Conduct code reviews and provide constructive feedback to team members.

Technologies:

• AI
• Architect
• Backend
• Cloud
• D3
• Frontend
• Security
• Web
• UX UI Design
• Support

More:

We are a global leader in cybersecurity, protecting the people, processes, and technologies that drive modern organizations. Since 2011, our mission has been to stop breaches, and we have redefined modern security with our AI-native platform. We work on large-scale distributed systems processing almost 3 trillion events per day, with traffic growing daily. Our customers span all industries and rely on us to keep their businesses running, their communities safe, and their lives moving forward. This Senior Frontend Engineer role sits on our Kestrel graphs UI team in London, United Kingdom, as a full-time hybrid position. We offer market-leading compensation and equity awards, comprehensive physical and mental wellness programs, competitive vacation and holidays, paid parental and adoption leave, professional development opportunities, employee networks, volunteer opportunities, a vibrant office culture, and world-class amenities. We are committed to an equal opportunity workplace and to fostering a culture of belonging, innovation, flexibility, and responsible AI adoption.

last updated 34 week of 2026