Software Developer (Full-Stack / Front-End)Remote in Portugal | Full-time, Permanent | English** Note: The role is remote but only open to candidates based in Portugal or able/willing to relocate **About UsAt LandOS we're building the intelligence layer for sustainable land use, combining AI, LLMs, and Earth Observation to unlock under-utilized land and enable projects that restore ecosystems, support rural economies, and drive climate action.We're a remote-first startup in Portugal built by people who've designed and scaled global software products, including a track record that includes 4x Apple Design Awards, and who've led hands-on engineering teams and platform work across companies such as Facebook, Foursquare, Samsung, AT&T, and AOL.
We blend product craftsmanship, deep engineering, and climate/investment experience to move fast with purpose.At its core, LandOS exists to reconnect people to land, turning complexity into clarity and potential into real impact.
This is more than just a software role.
It's a chance to join a small but senior, purpose-driven team using technology to accelerate Europe's transition to sustainable land use and ecological restoration.The RoleWe're looking for a Developer (Full-Stack or Front-End focused) to help design and build the next evolution of our platform, a system that fuses LLM-powered knowledge, geospatial data, and real-time workflows into an intuitive experience for landowners and institutional partners.You'll join early enough to shape key architectural and product decisions, working closely with our product, AI, and EO/GIS teams.
Depending on your strengths and interests, you may focus more on the full stack or specialize in creating exceptional front-end experiences.What You'll DoDesign, build, and maintain platform features using Next.js and TypeScriptDevelop intuitive, responsive user interfaces that make complex data accessibleBuild and integrate backend APIs and data pipelines (for full-stack candidates)Collaborate with our design and product team to develop agentic workflows and smart user experiencesWork with AI/LLM workflows, Earth Observation data, and land information systemsEnsure system performance, maintainability, and security across the stackContribute to DevOps, CI/CD, and cloud deployment strategyWrite clean, modular, and well-tested code, supported by automated workflowsWhat We're Looking ForEssential:Portugal based (currently or able/willing to relocate)Strong affinity with Portugal and our mission3-5+ years of professional experience in full-stack or front-end developmentDeep knowledge of Next.js and TypeScript/JavaScriptStrong experience with modern front-end development (React, component-based architecture, state management)Solid understanding of RESTful APIs and data handlingFamiliarity with LLM integration, AI-powered workflows, or interest in agentic systemsAbility to work autonomously in a remote, fast-moving startup environmentExcellent communication skills in EnglishFor Full-Stack Candidates (in addition to the above):Experience with at least one modern backend framework (Node.js, FastAPI, NestJS, etc.)Solid experience designing and consuming RESTful APIsExperience with SQL & No-SQL databasesExperience with containers (Docker, Kubernetes)Nice-to-Have:Experience with PostGIS, Earth Observation, or geospatial dataComfort with Python for AI or data workflowsWhy join us?
Mission with Real Impact: Build tech that directly supports climate, biodiversity, social benefit, and land restoration outcomes.Tech Ownership: Shape our stack and architecture at an early stage.Cross-Disciplinary Team: Work with AI, EO, and sustainability experts.Remote-First Flexibility: Work from anywhere in Portugal.
Based in the Centro region or Lisbon is a plus for occasional team meetups.Growth & Equity: Early-stage startup with significant responsibility and potential upside.