Lead Developer

Lead Developer (Founder Level)Location: Belgium / Europe (Hybrid or On-site in Sint-Truiden)Stage: Seed → Series AIndustry: Construction Tech / Aerial Data / SaaSAbout AirocollectAirocollect is a fast-growing Construction Tech startup making aerial data accessible to roofing and construction professionals. Our SaaS platform transforms drone imagery, LiDAR, and geospatial data into clear, actionable insights—without requiring a pilot license or complex workflows. Already trusted by leading construction companies across Europe, we are preparing for our next growth phase: scaling product, infrastructure, and technical depth toward Series A.To support this journey, we are looking for a hands-on Lead Developer with deep technical expertise in 3D data, photogrammetry, and geospatial systems, combined with strong product and leadership instincts. You will own the entire technical function at Airocollect: architecture, engineering execution, data pipelines, and technical strategy.This is a builder-first role.You will actively contribute to core algorithms and systems while shaping the team, roadmap, and long-term technical vision. You will work closely with the founders, product, and commercial teams to turn complex spatial data into a simple, scalable SaaS product.Key ResponsibilitiesPhotogrammetry, 3D & Geospatial SystemsDevelop and improve photogrammetry and point-cloud processing pipelinesProcess and analyze LiDAR data and governmental geoservice point cloudsResearch, integrate, and optimize open-source photogrammetry and geometry toolsWork on 3D visualization pipelines using Three.jsEnsure accurate handling of geospatial data, projections, and coordinate systems (EPSG)AI / ML & Algorithm DevelopmentDesign and improve AI/ML models for automatic roof detection and measurement(roof planes, hips, gutters, valleys, etc.)Implement and optimize: Feature extraction from spatial and point-cloud data, Geometry fitting algorithms (e.g. polyfit) and Random Forest–based classifiers and similar models.Technical Leadership & ArchitectureScale and own the long-term technical architecture for a scalable SaaS platformDesign systems that balance performance, accuracy, scalability, and speed of executionProduct & Engineering ExecutionContribute hands-on to core codebases where technical depth is criticalTranslate customer and business needs into technical solutionsMaintain high standards for code quality, testing, and performanceTeam Building & CultureHire, mentor, and lead a high-performing engineering teamBuild a pragmatic, ownership-driven engineering cultureRequired Technical SkillsStrong Knowledge (Required)PythonNode.jsC++Angular / TypeScriptMongoDBPoint clouds & 3D data processingThree.jsGeospatial data, maps & coordinate systems (EPSG, projections)AI / ML modelsExperience or Familiarity WithPhotogrammetry toolsLiDAR data processingImage processing & computer visionResearch-oriented problem solving and algorithm evaluationNice to HaveExperience in roof modelling or construction-related dataKnowledge of cloud-based processing pipelinesContributions to open-source projectsWho We're Looking ForSenior technical leader with hands-on experience in complex data-heavy systemsComfortable operating in a Seed → Series A startup environmentStrong balance between deep technical expertise and product thinkingAble to lead by example while still writing and reviewing critical codeClear communicator who can explain complex systems to non-technical stakeholdersWhat We OfferFounding-level impact on product and technical directionOwnership of core algorithms and platform architectureA real-world product solving complex problems in a traditional industryA fast-moving, ambitious team building for scale