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Full Stack Engineer - Backend Spain Jobs

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Senior Staff Full Stack Software Engineer
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Join Cloudera's Anywhere Cloud team as a Senior Staff Full Stack Engineer. Design and ship the end-to-end AI workflow stack using Rust and cloud-native architectures. You'll integrate AI/ML models, optimize performance, and mentor engineers in a fully remote role from Spain. Enjoy flexible WFH, w...
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Spain , Remote
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Not provided
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Cloudera
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Until further notice
Founding Full-Stack Software Engineer – AI for Biopharma
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Join Equator as a Founding Full-Stack Engineer in Barcelona. Build an AI-native platform for biopharma using Python, React, and modern frameworks. Shape the product and architecture from the ground up in a key founding role. Requires 4-6 years of experience and a valid Spain work permit.
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Spain , Barcelona
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70000.00 EUR / Year
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Blu Selection
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Until further notice
Full-stack Engineer – Internal AI Platform
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Join a new team building the core AI platform that democratizes autonomous AI Agent creation across the company. As a Full-stack Engineer in Madrid or Valencia, you'll design Chain of Thought flows and robust systems using TypeScript, Node.js, React, and SQL. Apply your hands-on experience with A...
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Spain , Madrid; Valencia
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Not provided
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Groupon
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Until further notice
A Full Stack Engineer specializing in backend jobs is a versatile and highly sought-after software professional who possesses expertise across the entire technology stack, with a pronounced depth in server-side logic, databases, and application architecture. This role is central to building the robust, scalable engines that power modern web applications, APIs, and digital services. While proficient in frontend technologies to ensure cohesive integration, their primary focus and value lie in designing, implementing, and optimizing the complex backend systems that handle data, business logic, security, and performance. Professionals in these roles typically shoulder end-to-end responsibility for feature development and system health. Common responsibilities include designing and developing secure, high-performance APIs and microservices; architecting and interacting with both SQL and NoSQL databases; writing clean, maintainable, and tested server-side code; and ensuring system reliability through monitoring, debugging, and participating in on-call rotations. They are deeply involved in the entire software development lifecycle, from concept and design through testing, deployment, and iteration. A critical aspect of the job is collaborating closely with frontend engineers, product managers, and DevOps specialists to translate business requirements into technical solutions, often making key architectural decisions that impact scalability and long-term maintainability. The typical skill set for these backend-focused full stack jobs is comprehensive. Core technical requirements almost always include advanced proficiency in one or more backend programming languages such as Java, Python, C#, or Node.js, alongside frameworks like Spring Boot or Django. Expertise in RESTful API design, cloud platforms (AWS, GCP, Azure), and containerization technologies like Docker and Kubernetes is standard. A strong grasp of database management, data modeling, and caching strategies is essential. On the frontend, practical knowledge of JavaScript, TypeScript, and a modern framework like React, Angular, or Vue.js is necessary for effective integration. Beyond technical prowess, successful candidates demonstrate strong problem-solving abilities, a commitment to software best practices (including Agile methodologies, CI/CD, and code reviews), and excellent collaboration skills. Many positions also seek experience in mentoring junior engineers and advocating for technical excellence. For those seeking dynamic and impactful backend jobs, the Full Stack Engineer path offers the unique advantage of holistic system understanding. It allows professionals to not only build the foundational logic of applications but also to see how it connects to and enables the user experience, making them invaluable assets in any technology-driven organization. This blend of deep backend expertise with complementary frontend skills opens doors to a wide array of opportunities across industries, from startups to large enterprises.

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