Full Stack Lead Developer

Lead Front-End & Product Engineer (Founder-Level) Location: Belgium / Europe (Hybrid or On-site in Sint-Truiden) Stage: Seed → Series A Industry: Construction Tech / Aerial Data / SaaS About Airocollect Airocollect is a fast-growing Construction Tech startup making aerial data usable for roofing and construction professionals. Our SaaS platform turns drone imagery, LiDAR, and geospatial data into clear, actionable insights—without requiring pilot licenses or complex workflows. We're trusted by leading construction companies across Europe and are entering our next growth phase: scaling product maturity, user experience, and engineering execution toward Series A. To support this, we're looking for a Founder-level Lead Developer with a strong front-end and product focus, deep understanding of UI/UX and user workflows, and the ability to translate real-world problems into scalable product solutions—while still grounding decisions in solid architecture, AI systems, and spatial data fundamentals. The Role This is a builder-first engineering leadership role. You will own how Airocollect feels, works, and scales—from translating customer pain points into intuitive interfaces, to leading the engineering team, to ensuring our technical foundations (architecture, AI pipelines, spatial processing) support long-term growth. You won't be "just" a front-end developer. You'll be the person who connects users, product, and engineering, making complex aerial and spatial data feel simple, fast, and reliable. You'll work closely with the founders, product, and commercial teams to turn construction workflows into a best-in-class SaaS experience. What You'll Be Responsible For Front-End & Product Experience (Primary Focus) Own the front-end architecture and implementation of our SaaS platform Translate customer problems and workflows into clear, intuitive UI/UX solutions Collaborate with product and design to shape user journeys, interaction patterns, and feature prioritization Build scalable, maintainable front-end systems using Angular / TypeScript Ensure performance, usability, and clarity when visualizing complex spatial and 3D data Continuously improve product quality through user feedback, metrics, and iteration Product Thinking & Problem Translation Turn ambiguous business and customer needs into concrete product and technical solutions Balance speed of execution with long-term product and architectural quality Act as a bridge between commercial, product, and engineering teams Help define what should be built—not just how Technical Leadership & Architecture Own and evolve the overall system architecture of the platform Ensure front-end decisions align with backend, AI, and data-processing constraints Make informed trade-offs between accuracy, performance, scalability, and development velocity Maintain high standards for code quality, testing, and technical documentation AI, Spatial Systems & Domain Understanding (Supporting Focus) Maintain a strong conceptual understanding of AI/ML pipelines used for roof detection and measurement Collaborate on or review implementations related to: Feature extraction from spatial and point-cloud data Geometry fitting and classification models Develop and maintain a working understanding of photogrammetry, LiDAR, and geospatial data Enough to make sound product, UX, and architectural decisions Not necessarily owning low-level algorithm development day-to-day Team Leadership & Culture Hire, mentor, and lead a high-performing engineering team Lead by example with hands-on contributions where it matters most Build a pragmatic, ownership-driven, product-minded engineering culture Set clear expectations, technical direction, and execution standards What We're Looking For Core Strengths (Must-Have) Strong front-end engineering background (Angular / TypeScript) Proven ability to translate real-world problems into great product experiences Solid understanding of UI/UX principles, not just implementation Experience leading or owning engineering direction in a startup or scale-up Comfortable operating in a Seed → Series A environment Strong communication skills across technical and non-technical teams Strong Supporting Experience Good understanding of software architecture and system design Familiarity with AI/ML systems and how models integrate into products Basic working knowledge of: photogrammetry concepts, LiDAR / point-cloud data, geospatial systems and projections (EPSG) Experience working with 3D or data-heavy visualizations (e.g. Three.js) Nice to Have Experience in construction, roofing, or geospatial products Experience with Node.js, Python, or C++ in production systems Cloud-based processing or scalable data pipelines Open-source contributions What We Offer Founder-level impact on product, UX, and technical direction Ownership of how a complex technical platform translates into a simple user experience A real-world product solving hard problems in a traditional industry A fast-moving, ambitious team building for long-term scale Competitive compensation with meaningful equity upside