Senior Software Engineer - Data Visualization & Graphics

Senior Software Engineer | Data Visualisation & Graphics | London London (Hybrid) Salary up to £200,000 + benefits Most engineers consume visualisation libraries. A small number build them. We’re working with a highly successful software company whose charting technology powers applications used by thousands of organisations worldwide, from global financial institutions to technology businesses and enterprise software providers. As adoption continues to grow, they’re looking for a software engineer to help build the rendering systems, charting components, and visualisation infrastructure that sit at the heart of the product. This is not a dashboard-building role. You’ll be working on the underlying systems that make complex visualisations fast, accurate, and scalable. The challenges range from rendering performance and interaction design through to algorithms, graphics, API design, and numerical correctness. What you’ll be doing Designing and building core charting features used by developers around the worldWorking across rendering, interaction, animation, and visualisation infrastructureSolving performance-critical problems involving Canvas, SVG, and large datasetsImproving correctness, precision, and usability across a sophisticated charting platformDesigning APIs that are elegant, flexible, and easy for developers to adoptTaking features from initial concept through to production releaseCollaborating with a small team of highly experienced engineers building a market-leading product What they’re looking for Strong JavaScript or TypeScript engineering skillsExperience working with Canvas, SVG, WebGL, graphics systems, visualisation products, or rendering pipelinesStrong understanding of algorithms, data structures, and software architectureExperience building complex software products rather than purely application-layer developmentExposure to languages such as C++, Java, C#, Rust, Go, or similarUnderstanding of performance optimisation and rendering trade-offsAppreciation of the mathematical concepts underpinning data visualisation and graphicsPassion for engineering quality and technical excellence Particularly interesting backgrounds include Charting librariesData visualisation platformsGraphics or rendering enginesCAD, GIS, mapping, simulation, or scientific softwareDeveloper toolsHigh-performance frontend systemsFinancial technology visualisation platforms Why this role stands out Build technology used by thousands of engineering teams globallyWork on rendering and graphics problems rarely found in commercial software rolesJoin an engineering-led organisation with exceptionally high technical standardsHigh levels of ownership and autonomySmall team, significant impactOpportunity to deepen expertise in performance, graphics, visualisation, and systems design Package Salary up to £200,000Hybrid working (London)Private healthcarePensionAdditional benefits If you’re interested in building the technology behind modern data visualisation rather than simply consuming it, we’d be keen to speak with you.