33 English-speaking jobs in Aragon

Required Qualifications 2–5 years of experience across frontend and backend development. Proficient with React/Next. js and TypeScript on the frontend, plus Python (FastAPI/Django) on the backend. Experience building data-intensive dashboards, experiment tracking UIs, or internal automation tools. Strong understanding of API design, data modeling, and frontend–backend integration.

Fullstack Engineer - Fixed Term Contract / Quantum and AIWe’re hiring a number of Fullstack Engineers to help build internal tools and interfaces that support state of the art AI and quantum inspired technologies. This team develops systems that enable extreme compression of large language models, reducing size by up to 95 percent and cutting inference costs by as much as 80 percent.

The role:Collaborate with a team of quantum and AI specialists. Solve high-value problems for Fortune-500 clients in government and private sectors. Contribute to the industrialization of core AI and quantum technologies. Design, develop, and deploy maintainable, high-quality software systems. Take technical leadership and work alongside software, DevOps, ML, and quantum experts.

We are looking for Backend Engineers (various levels of seniority) to join an exciting European DeepTech start-up in Zaragoza. They can offer hybrid working (3 days on-site) within a commutable distance. They’re a fast-growing AI & quantum computing company that develops cutting-edge software that boosts performance & efficiency.

We are a European deep-tech leader specializing in quantum and AI, backed by major global investors. Our groundbreaking technology is transforming AI deployment worldwide by compressing large language models by up to 95% without losing accuracy and cutting inference costs by 50-80%. Join us to work on cutting-edge solutions that make AI faster, greener, and more accessible.

We are looking for a Backend Engineer who enjoys building reliable, scalable services that power advanced AI and data-intensive applications. In this role, you’ll collaborate with cross-functional teams to transform research-driven concepts into robust production components.

In this position, you will be designing and developing frontend UI systems and working on cutting edge solutions. This is a contractr position until end of June 2026 with potential scope to extend. You will be working hybrid in Zaragoza. Around 2-3 days per week on-site and rest of week remote. These contracts will be payrolled directly with the company.

Fullstack Software Engineer - React or NextJS / Python / Typescript / ML / LLMWe're hiring for an experienced fullstack software engineer with experience in either React or Next. JS and Python for a rapidly expanding deep tech company that is backed by major global investors.

Required Qualifications2–5 years of experience developing and maintaining backend systems in Python or Go. Strong understanding of RESTful API or gRPC design, versioning, and performance optimization. Experience with Docker and basic familiarity with Kubernetes for deploying scalable services. Solid understanding of relational databases (PostgreSQL/MySQL) and schema design.

Backend Engineer - Quantum + AI - 9 months contract - Zaragoza, SpainJoin a European deep-tech leader at the forefront of quantum and AI innovation. The team is backed by major global strategic investors and strong EU support, and is already reshaping how AI is deployed worldwide. As the business expands we are now looking for a Backend Engineer to join the team in Zaragoza.

Backend Engineer - Fixed Term Contract / Infrastructure and AutomationWe’re looking for a number of Backend Engineers to help build robust services and automation pipelines that support next generation AI and quantum inspired technologies.

**This is initially a Fixed Term Contract - Hybrid from Zaragoza**Responsibilities• Design and develop new techniques to compress Large Language Models based on quantum-inspired technologies to solve challenging use cases in various domains.

Backend Software Engineer - Python or Go / ML / LLMWe're hiring for an experienced backend engineer with experience in either Python or Go for a rapidly expanding deep tech company that is backed by major global investors. In this position, you will be designing and developing backend systems and working on cutting edge solutions.

Frontend Engineer - Quantum + AI - 9 months contract - Zaragoza, SpainJoin a European deep-tech leader at the forefront of quantum and AI innovation. The team is backed by major global strategic investors and strong EU support, and is already reshaping how AI is deployed worldwide. As the business expands we are now looking for a Frontend Engineer to join the team in Zaragoza.

Frontend Engineer - Fixed Term Contract / Research Tools and InterfacesWe’re seeking a number of Frontend Engineers to build intuitive interfaces for advanced AI and quantum inspired systems. The team develops tools that support model compression technology capable of reducing LLM size by up to 95 percent and cutting deployment costs by 50 to 80 percent.

**This is initially a Fixed Term Contract - Hybrid from Zaragoza**Required Qualifications:• 1–4 years of experience building modern web applications using React (or Next. js) and TypeScript. • Strong foundation in component-based design, state management (Redux, Zustand, or Recoil), and responsive UI frameworks (Tailwind, ShadCN, or Material UI).

Full-Stack Engineer - Quantum / AI - (Fixed-term contract) - based in Zaragoza, SpainWe are recruiting for a fast-growing European deep-tech company working at the cutting edge of quantum technologies and AI. They’re backed by major investors and are developing technology that makes AI models faster, more efficient, and significantly cheaper to run.

A Quantum Computing & AI software company based in Zaragoza are seeking to bolster their team with a talented technical project manager. Responsibilities:Manage teams of engineers and ML practitioners to deliver impactful LLM and AI solutions for top-tier clients. Oversee scoping, planning, execution, and deployment, ensuring timely and high-quality delivery of ML initiatives.

The team is supported by significant global backing and European initiatives and is building infrastructure that makes AI deployment faster, more efficient, and widely accessible. This contract runs until the end of June 2026 on a hybrid model and includes a competitive package with signing and retention bonuses.

Software Engineer - Fixed Term Contract / Quantum and AIWe’re looking for a Software Engineer to join a team building next generation AI and quantum inspired technologies. Their work enables extreme model compression that reduces the size of large language models by up to 95 percent while keeping accuracy intact, cutting deployment costs by as much as 80 percent.