C++ Software Engineer

3 days ago

London, United Kingdom X4 Technology Full time

C++ Audio Software Engineer (Plugins & Systems) Hybrid / Flexible Working (Cambridge based)OverviewWe're looking for a C++ JUCE Audio Software Engineer with 3 - 5+ years experience to help build robust, professional-grade audio software used for audio plugins.In addition to audio plugins, you will gain exposure to system architecture, UI/UX, and hardware communication. collaborating closely with audio and embedded engineers to deliver reliable, low-latency tools that integrate seamlessly into modern DAW workflows.This role offers flexible hybrid working, with a strong emphasis on trust, autonomy, and outcomes rather than rigid schedules.What You'll Work OnCross-platform audio plugin development (VST3, AU, AAX, Standalone)Thoughtful parameter systems, state management, and undo/redoReal-world DAW host edge cases and workflow constraintsCustom UI components, meters, visualisations, and interaction designLow-latency communication with external hardware over USB and network protocolsClose collaboration with audio DSP and embedded systems engineersKey ResponsibilitiesAudio Plugin & Systems DevelopmentDesign and implement production-ready audio plugins using modern C++Build robust parameter routing, automation, preset, and state systemsImplement reliable undo/redo and session persistenceDebug and resolve host-specific issues across DAWs and operating systemsEnsure performance, stability, and real-time safetyUI / UX ImplementationDevelop custom UI components with professional look and feelImplement industry-standard control behaviour (knobs, sliders, meters)Create visualisation tools such as meters, curves, and analyzersCollaborate on UX decisions for complex, professional workflowsIterate based on internal testing and user feedbackHardware & IntegrationImplement device discovery and connection managementBuild real-time, bidirectional communication systemsDebug cross-platform USB and network communication issuesOptimise data transfer paths for low latency and reliabilityCollaborate on protocol design and integrationWhat We're Looking ForExperience3–5+ years professional C++ development experienceHands-on experience with JUCE for audio plugin developmentShipped or maintained real-world audio software (not just personal projects)Technical SkillsStrong modern C++ (clean architecture, SOLID principles)Deep understanding of audio plugin architectures and DAW integrationExperience with real-time audio constraints (latency, threading, safety)Confident debugging and profiling across platformsFamiliarity with DSP fundamentals (metering, filters, dynamics)Experience with parameter automation and state managementKnowledge of USB and/or network-based communicationComfortable with multi-threading, async patterns, and IPCGit-based workflows and collaborative developmentNice to HaveExperience with AAX or standalone audio applicationsExposure to embedded systems or hardware-software integrationStrong opinions on UX for professional audio toolsWhy This RoleFlexible hybrid working with autonomy and trust (the innovation center is based in Cambridge)60k - 70k +Technically challenging, meaningful work used by professionalsSmall, highly skilled team with strong engineering cultureOpportunity to shape systems, architecture, and user experienceFocus on quality, maintainability, and long-term product health

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