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 Us
At 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 Role
We'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 Do
Design, build, and maintain platform features using Next.js and TypeScript
Develop intuitive, responsive user interfaces that make complex data accessible
Build 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 experiences
Work with AI/LLM workflows, Earth Observation data, and land information systems
Ensure system performance, maintainability, and security across the stack
Contribute to DevOps, CI/CD, and cloud deployment strategy
Write clean, modular, and well-tested code, supported by automated workflows
What We're Looking For
Essential:
Portugal based (currently or able/willing to relocate)
Strong affinity with Portugal and our mission
3-5+ years of professional experience in full-stack or front-end development
Deep knowledge of Next.js and TypeScript/JavaScript
Strong experience with modern front-end development (React, component-based architecture, state management)
Solid understanding of RESTful APIs and data handling
Familiarity with LLM integration, AI-powered workflows, or interest in agentic systems
Ability to work autonomously in a remote, fast-moving startup environment
Excellent communication skills in English
For 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 APIs
Experience with SQL & No-SQL databases
Experience with containers (Docker, Kubernetes)
Nice-to-Have:
Experience with PostGIS, Earth Observation, or geospatial data
Comfort with Python for AI or data workflows
Why 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.