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Senior Engineer Spain Jobs (Remote work)

25 Job Offers

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Senior Full Stack Engineer
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Senior Full Stack Engineer | Database Observability, Grafana Cloud | Spain | Remote
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Senior Software Engineer, Security Assurance | Spain | Remote
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Senior Software Engineer, Security Assurance needed for a remote-first role in Spain. Build automated, data-driven security systems with Kubernetes and cloud-native tools. Requires strong programming skills and GRC framework knowledge.
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Senior Software Engineer, Backend (Comms Core)
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Senior Backend Engineer role at Affirm's Communications team, remote in Spain. Build scalable multi-region messaging infrastructure with Python, Kotlin, AWS and Kubernetes. Requires 5+ years experience in distributed systems.
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86000.00 - 122000.00 EUR / Year
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Senior AI/ML Engineer
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Join EcoVadis as a Senior AI/ML Engineer in Barcelona and build scalable AI systems driving sustainability innovation. Requires Python, MLOps/LLMOps, Azure and Databricks expertise. Flexible hours and wellness benefits.
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Senior Knowledge Graph Engineer
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Join EcoVadis as a Senior Knowledge Graph Engineer in Barcelona. Build GraphRAG pipelines and semantic data solutions using Neo4j, Python, and Azure. Enjoy flexible hours, wellness benefits, and remote work options.
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Senior Software Engineer (Web Scraping, Data acquisition, Data collection)
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Senior Software Engineer role in Madrid focused on large-scale web scraping and data acquisition. Requires 5+ years of Python experience, anti-bot bypass skills, and expertise with Scrapy, Selenium, or Playwright.
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46000.00 - 70000.00 EUR / Year
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Senior Knowledge Graph Engineer
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Senior Cloud Infrastructure Engineer
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Spain, Remote
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Senior Backend Engineer (remote)
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Senior FrontEnd Engineer
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Spain, Spain
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Senior Mobile Engineer
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Senior Backend Engineer
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Senior Frontend Engineer
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Senior Quality Assurance Engineer
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Senior Full Stack Engineer (Realtime & Voice) Customer Experience Platform
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Senior AI/ML Engineer
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Senior Knowledge Graph Engineer
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HQ - Senior Application Security Engineer (Remote)
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Spain, Madrid HQ
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HQ - Senior Information Security Engineer
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Spain, Madrid HQ
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About the Senior Engineer role

Senior Engineer jobs represent the pinnacle of technical expertise and leadership within the engineering field. These roles are designed for seasoned professionals who possess deep, specialized knowledge and are entrusted with guiding complex projects, making high-stakes architectural decisions, and mentoring the next generation of talent. Unlike entry or mid-level positions, senior engineers are expected to operate with significant autonomy, translating broad business objectives into robust, scalable, and innovative technical solutions. They serve as the critical bridge between strategic vision and practical execution, ensuring that engineering outcomes align with long-term organizational goals.

Professionals in these roles typically shoulder a comprehensive set of responsibilities that extend beyond pure coding. A core duty is systems architecture and design, where they define the technical blueprint for major initiatives, selecting appropriate technologies and frameworks to ensure performance, security, and maintainability. They are deeply involved in solving the most challenging and ambiguous problems, applying advanced analytical skills to diagnose issues and devise elegant solutions. Leadership is a fundamental aspect, encompassing code and design reviews, technical mentorship for junior team members, and fostering a culture of engineering excellence and continuous improvement. Furthermore, senior engineers often own the entire lifecycle of critical system components, from conception and development through deployment, monitoring, and iterative enhancement.

The typical skill set for senior engineer jobs is both broad and deep. Mastery in one or more programming languages and relevant technology stacks is a given. However, what truly distinguishes a senior engineer is their proficiency in architectural patterns, such as microservices or event-driven design, and a strong grasp of cross-cutting concerns like security, scalability, and observability. They are expected to have extensive experience with modern development practices, including DevOps principles, CI/CD pipelines, infrastructure as code, and automated testing strategies. Equally important are the soft skills: exceptional communication to articulate complex ideas to technical and non-technical stakeholders, strategic thinking to anticipate future challenges, and a collaborative mindset to work effectively across multidisciplinary teams. A proven track record of driving projects to successful completion and a mindset geared towards innovation and efficiency are common requirements.

Ultimately, senior engineer jobs are for those who are not just builders but visionaries and stewards of technology. They play a crucial role in shaping the technical direction of products and services, mitigating risk, and ensuring that engineering practices evolve to meet emerging demands. For organizations, hiring for these positions is an investment in stability, innovation, and sustained competitive advantage. For engineers, these roles offer the opportunity to have an outsized impact, lead transformative work, and define the future of technology within their domain.