011h is a Barcelona-based construction technology company that is transforming the building industry through a digitalized and industrialized approach. By integrating advanced software with sustainable materials like mass timber, the company aims to create high-quality, carbon-neutral residential buildings more efficiently and reliably than traditional construction methods.

Headquartered in Barcelona, 011h offers a unique environment for international professionals at the intersection of PropTech, architecture, and sustainability. The company actively recruits for roles in BIM coordination, structural engineering, and product management, making it an attractive destination for expats looking to work on cutting-edge green construction projects within a tech-driven culture.

Founded in 2020 by Jose Manuel Villanueva and Lucas Carné (founders of Privalia) along with other tech veterans. The company secured 25 million euros in Series A funding in 2022 to scale its sustainable building platform across Spain.

Backend Engineer

011h

This job was originally posted in Spanish and automatically translated to English. You'll most likely need Spanish to apply.

Job Description

At 011h, we are revolutionizing the construction sector to make it more sustainable, efficient, and digital. We design and build buildings with an industrialized vision, using innovative technologies and planet-responsible materials, such as wood. Our mission is clear: to build better, for everyone.

We are the first "end-to-end" digital platform for construction in Europe. We combine knowledge of architecture and engineering with the power of technology to standardize processes, automate tasks, and scale solutions that transform the sector without compromising design, quality, or positive impact.

At 011h, design, construction, and software professionals work collaboratively in a dynamic, ambitious environment oriented toward sustainability. If you are inspired by the idea of changing how the world is built, this is the place for you.

Currently, our area of activity is Spain, with prospects for internationalization in the coming years.

At 011h, we are looking for a Backend Engineer to join our team:

What we are looking for:

Write scalable and efficient code.

Improve the functionality of current systems.

Process automation.

Implement security and data protection solutions.

Evaluate and prioritize requests for new features.

Coordinate with internal teams to understand user requirements and provide technical solutions.

Requirements

What we need from you:

Minimum 3 years of experience in development with Python.

Experience in PostgreSQL.

University degree in engineering or similar.

Experience in Python with FastAPI.

Experience in application programming interfaces (API).

Knowledge of Docker infrastructure.

Knowledge of agile methodologies.

Tech Stack:

Python language with FastAPI.

TypeScript language with React framework.

Domain Driven Design (DDD).

APIs first.

Continuous Integration and Deployment (CI/CD). Testing, Security by Design, Docker, and Amazon Web Services (AWS).

Databases: PostgreSQL.

Bonus

Knowledge of test automation.

Familiarity with other back-end programming languages (such as TypeScript with NodeJS).

Familiarity with front-end frameworks (such as React).

Benefits

What we offer:

🌱 Real impact: be part of a company that is transforming construction toward a sustainable and positive model for the planet.

📈 Professional growth: individual development plan with opportunities for continuous learning and training.

🤝 Great environment and collaboration: multidisciplinary, diverse team with a culture of support and closeness.

🧘 Well-being and balance: the balance between your personal and professional life is important to us, which is why we enjoy two days of remote work per week.

🏢 Sustainable offices: pleasant spaces, designed for collaboration and environmental respect.

🏖️ 30 working days of vacation per year so you can enjoy your personal time.

At 011h, we promote diversity and inclusion. Everyone is welcome, regardless of their origin, identity, orientation, age, or ability. We adapt the process if you need it. Join a team that values different perspectives and experiences.

View original advert (Spanish)

En 011h estamos revolucionando el sector de la construcción para hacerlo más sostenible, eficiente y digital. Diseñamos y construimos edificios con una visión industrializada, utilizando tecnologías innovadoras y materiales responsables con el planeta, como la madera. Nuestra misión es clara: construir mejor, para todos.

Somos la primera plataforma digital "end to end" para la construcción en Europa. Combinamos el conocimiento de la arquitectura y la ingeniería con el poder de la tecnología para estandarizar procesos, automatizar tareas y escalar soluciones que transformen el sector sin renunciar al diseño, la calidad ni el impacto positivo.

En 011h, profesionales del diseño, la construcción y el software trabajan de forma colaborativa en un entorno dinámico, ambicioso y orientado a la sostenibilidad. Si te inspira la idea de cambiar cómo se construye el mundo, este es tu lugar.

Actualmente, nuestro ámbito de actividad es España, con perspectivas de internacionalización en los próximos años.

En 011h buscamos a un/a Backend Engineer que se una a nuesto equipo:

Qué buscamos:

Escribir código escalable y eficiente.

Mejorar la funcionalidad de los sistemas actuales.

Automatización de procesos.

Implementar soluciones de seguridad y protección de datos.

Evaluar y priorizar las solicitudes de nuevas funciones.

Coordinarse con los equipos internos para comprender los requisitos de los usuarios y ofrecer soluciones técnicas.

Requirements

Qué necesitamos de ti:

3 años de experiencia mínima en desarrollo con Python.

Experiencia en PostgreSQL.

Título universitario en ingeniería o similar.

Experiencia en Python con FastAPI.

Experiencia en interfaces de programación de aplicaciones (API).

Conocimientos de infraestructura Docker.

Conocimientos de metodologías agile.

Tech Stack:

Python language with FastAPI.

TypeScript language with React framework.

Domain Driven Design (DDD).

APIs first.

Continuous Integration and Deployment (CI/CD). Testing, Security by Design, Docker, and Amazon Web Services (AWS).

Databases: PostgreSQL.

Bonus

Conocimientos sobre automatización de pruebas.

Familiaridad con otros lenguajes de programación back-end (como TypeScript con NodeJS).

Familiaridad con marcos front-end (como React).

Benefits

Qué ofrecemos:

🌱 Impacto real: formar parte de una empresa que está transformando la construcción hacia un modelo sostenible y positivo para el planeta.

📈 Crecimiento profesional: plan de desarrollo individual con oportunidades de aprendizaje y formación continua.

🤝 Buen ambiente y colaboración: equipo multidisciplinar, diverso y con una cultura de apoyo y cercanía.

🧘 Bienestar y equilibrio: para nosotros es importante el balance entre tu vida personal y la profesional, por eso disfrutamos de dos días de teletrabajo a la semana.

🏢 Oficinas sostenibles: espacios agradables, pensados para la colaboración y el respeto medioambiental.

🏖️ 30 días laborables de vacaciones al año para que disfrutes de tu tiempo personal.

En 011h, fomentamos la diversidad y la inclusión. Todas las personas son bienvenidas, independientemente de su origen, identidad, orientación, edad o capacidad. Adaptamos el proceso si lo necesitas. Únete a un equipo que valora diferentes perspectivas y experiencias.