Empleos de backend python developer en Zaragoza

This position is listed on behalf of a partner company, which manages all applications and next steps. Our partner is looking for a Senior Backend Software Engineer – Future Hiring Program based in Spain. Join a forward-thinking engineering team delivering high-impact software solutions for global enterprise clients across diverse industries.As part of a...

Severalnines is seeking a seasoned QA engineer to lead test architecture for our on-premise flagship product. You will design test scenarios and build a scalable automation matrix, going beyond Web UI tests to API, service, and backend validation, with Bash and Python.You’ll collaborate with developers, design test plans, and stay current with testing...

UST is seeking a highly skilled Developer Analyst - Full Stack Developer with at least 5 years of professional experience to design, develop, and maintain scalable web applications. The role spans frontend and backend, using Angular, Node.js, Spring Boot, and OpenShift, and involves agile collaboration across cross-functional teams.You will contribute to...

This position is listed on behalf of a partner company, which manages all applications and next steps. Our partner is looking for a Senior Full Stack Developer (React + Node.js) based in Spain.Are you a seasoned full stack developer passionate about building scalable applications and solving complex engineering challenges? This opportunity allows you to...

Orbio is seeking a backend-focused Python engineer to take on a Tech Lead role and help build our conversational, agentic AI platform. As a senior/founding-level engineer, you will architect and scale intelligent workflow systems for hiring, onboarding, and employee experiences in enterprise settings. You will help build an end-to-end, production-grade B2B...

Role Description We are still looking for the very Top Talent…and we would be delighted if you were to join our team! More in detail,What we look for? We are looking for an experienced Developer Analyst - Full Stack Developer with at least 5 years of professional experience designing, developing, and maintaining scalable web applications.The ideal...

Linqia, Inc. is seeking a Fullstack Engineer to join as a long-term contractor, working remotely from the Medellín, Colombia area. You will build seamless end-to-end experiences with Vue.js, TypeScript, CSS, and Python, while integrating APIs, databases, and microservices.The role emphasizes collaboration, code quality, and ongoing learning. You will design...

Selecto is seeking a Senior FullStack Developer to join an AI-powered platform handling users, roles, and permissions with KYC/KYB and rewards systems. You will work remotely with a Europe-wide team on a 6–12+ month project and gradually assume a Team Lead role as you extend a complex schema-driven backend.The stack includes Next.js 15, TypeScript, tRPC,...

Take your career to the next level with Amaris Consulting as a Senior Low-Code Developer. Become part of an international team, thrive in a global group with €800 M turnover and 1,000+ clients worldwide, and an agile environment by planning the kickoff and follow-up on projects. Join Amaris Consulting, where you can develop your potential and make a...

Full Stack - Senior Developer (remote) Óscala works for a growing list of reputable clients in The Netherlands and surrounding countries. We offer our clients additional (remote) capacity so they can continue to build their state-of-the-art software solutions, web applications, mobile apps and alike. For one of our clients we are currently looking for a:...

Lever, Inc. is seeking a .NET Developer based in Spain to contribute to the development, maintenance, and support of reliable software applications in a remote-first environment. You will use C# and .NET technologies to build web applications, APIs, and backend services, diagnose issues, and ensure production stability while collaborating with...

We are looking for a React Frontend Developer to join our team and help enhance our digital capabilities by designing, developing, and maintaining modern, high-performance web applications. You will work closely with cross-functional teams to deliver scalable, user-friendly solutions that support both strategic and operational business objectives. This is an...

Premier Research is looking for a Senior R Programmer/ Shiny Developer to join our Biostatistics team. You will help biotech, medtech, and specialty pharma companies transform life-changing ideas and breakthrough science into new medicines, devices, and diagnostics. What we do is profoundly connected to saving and improving lives, and we recognize our team...

Talan Spain is seeking a Fullstack Developer for a 4-month contract to deliver a React-based mobile project with a strong focus on performance, offline capability, and efficient data synchronization. You will design, implement, and deploy a mobile-first PWA using React and TypeScript, build APIs with Python/FastAPI or Node.js, and work with PostgreSQL while...

Intellectsoft is a software development company delivering innovative solutions since 2007. We operate across North America, Latin America, the Nordic region, the UK, and Europe.We specialize in industries like Fintech, Healthcare, EdTech, Construction, Hospitality, and more, partnering with startups, mid-sized businesses, and Fortune 500 companies to drive...

ALTEN Delivery Centre Spain is seeking a Senior Java Developer (German Speaker) with 5+ years of experience to join a cloud-native project in an enterprise setting. You will work on backend services using Java 21, Spring Boot, and REST APIs in Cloud Foundry environments. You will contribute to scalable data solutions with PostgreSQL, OpenAPI/Swagger, and...

Capitole keeps growing, and we want you to grow with us!Are you a Full-Stack Developer with strong experience in Java, Spring Boot and Angular ?At Capitole , we are looking for a Senior Full-Stack Developer (M/F) to join an international project.What will you do?Design, develop and maintain scalable full-stack applications.Develop backend services...

¡Capitole sigue creciendo - y queremos que formes parte del viaje!Estamos buscando un/a Desarrollador Java - Developer con 3 años de experiencia para unirse a nuestro increíble equipo.Funciones: Desarrollo de aplicaciones backend en Java .Diseño e implementación de microservicios con Spring Boot .Creación y consumo de APIs REST .Integración con...

Hired is seeking a Senior Python Developer to support a foundational LLM company in enhancing large language models. You will design, develop, and maintain Python code to train and optimize AI models, and lead supervised fine-tuning with high-quality data. You will evaluate model responses, rank outputs, and collaborate with researchers and annotators to...

About The RoleWhat if the code you write could directly power the AI systems shaping how millions of people interact with technology? We're looking for Back End Developers in Madrid to design, build, and optimize the server-side systems and APIs that drive cutting‑edge AI products — from data pipelines and model‑serving infrastructure to scalable...