GIS / ArcGIS Pro + ArcPy Engineer (Solar Modelling - UK Digital Twin))

3 weeks ago


City of London, United Kingdom APEXION Full time

Solar Radiation Modelling in ArcGIS (UK Digital Twin Project)📍 London (Hybrid Preferred) | 🌍 UK Digital Twin Project | 💼 £15k–£25k Project Contract (with Full-Time Potential)Apexion is building the digital twin of Earth’s infrastructure, starting with a complete solar intelligence layer for 2M+ UK commercial buildings.We’ve already built the full backend dataset (ownership, occupancy, polygons, segmentation) and secured 5–12.5 cm high-resolution LiDAR + imagery across the UK.We now need a top-tier GIS / ArcGIS Pro / ArcPy engineer to architect the solar radiation modelling algorithm. This is the critical missing piece — and we’re looking for someone exceptional to build it.Why This Role MattersThis is the first modelling engine powering our long-term vision: a complete digital twin of Earth’s infrastructure.The system you build will become the foundation for:National-scale rooftop PV modellingBattery + EV charging simulationExpansion into Spain, Germany, Denmark, and beyondFuture layers for water, heat, grid, nature and climateA global renewable infrastructure twin used by developers, investors, and governmentsIf you want your work to shape how infrastructure is built globally - this is the place.The MissionDesign and build an end-to-end solar radiation modelling system inside ArcGIS Pro / ArcPy, turning complex geospatial data into a UK-wide solar intelligence engine.1. LiDAR + Imagery IntegrationIntegrate 5–12.5 cm LiDAR/DSM/imagery into ArcGIS/ArcPyDerive roof geometry, tilt & azimuthPerform roof plane segmentationIdentify obstructions and shading lossesBuild 3D meshes / surface models to visualise the UK digital twin2. Solar Algorithm DevelopmentCreate an algorithm that incorporates:Solar irradiation (GHI, DNI, DHI)Orientation & tiltHourly shadow modellingMaximum sunlight hoursWeather patterns (cloud cover, TMY data)3. Panel Layout LogicEnable filtering and customisation for:Panel size & spacingObstruction clearanceEdge-of-roof safety marginsMinimum usable contiguous roof area4. Advanced OutputsGenerate:Usable roof areaOptimal panel placement mapsMaximum system size (kW)Estimated annual electricity generationVisual GIS outputs + spreadsheet-ready data5. Full UK-Scale AutomationBuild a system that can run the entire pipeline across 2 million+ UK buildings, efficiently and repeatably.About YouWe care less about years of experience and more about raw talent, creativity, and ambition.You thrive when:You’re building something that’s never been done at this scaleYou enjoy solving complex geospatial/remote sensing problemsYou want ownership, autonomy, and creative controlYou get excited by national or planetary-scale datasetsYou want your work to have long-term real-world impactYour SkillsStrong expertise in ArcGIS Pro + ArcPy (Python required)Experience with LiDAR / DSM, solar modelling, or remote sensingComfortable designing algorithms and automating large-scale workflowsIntellectually curious, driven, and excited by global infrastructure challengesIf solving complex geospatial challenges and building a national-scale digital twin excites you - apply or send me a DM, and let’s talk



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