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Senior Engineer Spain Jobs

98 Job Offers

Senior ML/LLM Engineer (API & Fullstack)
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Join our Barcelona team as a Senior ML/LLM Engineer. You will develop and deploy advanced machine learning models and LLM solutions using Python. Your key focus will be building robust, scalable APIs and integrating them into full-stack production applications. We offer great benefits, continuous...
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Spain , Barcelona
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Not provided
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Sopra Steria
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Senior Software Engineer
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Join Fever's Engineering team as a Senior Software Engineer in Spain. Develop production-grade Python code, work with RESTful APIs, and mentor team members. Enjoy a home-office-friendly role with a relocation package, health insurance, and discounts on unique events.
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Spain
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50000.00 - 65000.00 EUR / Year
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Fever
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Go-To-Market Senior Engineer
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Join Fever, the leading tech platform for live entertainment, as a Go-To-Market Senior Engineer in Madrid. You will own and optimize global Business Development onboarding, using analytics and enablement platforms like Salesforce to maximize productivity. Enjoy benefits like health insurance, fle...
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Spain , Madrid
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Not provided
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Fever
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Senior Analytics Engineer
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Join Fever in Madrid as a Senior Analytics Engineer. Bridge data engineering and business analytics, building reliable datasets with Snowflake, DBT, and Airflow. Enjoy a competitive package with stock options, health insurance, and a flexible, home-office-friendly culture.
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Spain , Madrid
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Fever
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Senior Software Engineer
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Join Fever's Engineering team as a Senior Software Engineer, shaping the global platform for live entertainment. You'll design and maintain high-performance Python services, leveraging RESTful APIs and relational databases. Enjoy remote work across Spain, health insurance, stock options, and disc...
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Spain
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50000.00 - 65000.00 EUR / Year
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Fever
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Senior Software Engineer
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Join our Data Department in Madrid as a Senior Software Engineer. You will build scalable backend services and data pipelines to power machine learning models and business automation. We seek strong Python skills, experience with cloud infrastructure, and a pragmatic approach to system design. En...
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Spain , Madrid
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Not provided
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Fever
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Senior Authorizing Engineer
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Join our O&M team in Caceres/Madrid as a Senior Authorizing Engineer. You will design and supervise MV/LV maintenance, ensuring safety through procedures and documentation. We require 2-3 years of HV/MV switching experience and an Electrical Engineering degree. We offer a competitive package, hea...
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Spain , Caceres/Madrid
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Not provided
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Metlen Group
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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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Senior Frontend Engineer
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Join Fever, a global leader in live entertainment, as a Senior Frontend Engineer in Spain. Utilize your expertise in Angular, TypeScript, and responsive design to build scalable web experiences for millions. Enjoy a remote-friendly role with stock options, health insurance, and significant growth...
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Spain
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Not provided
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Fever
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Senior Software Engineer
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Join IKEA's global B2B landscape as a Senior Software Engineer in Madrid. Own features end-to-end, using modern stacks like React, Python, and GCP microservices. Collaborate closely with product teams to solve real user problems and drive measurable business impact in a positive work environment.
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Spain , Madrid
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Not provided
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IKEA
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Senior Data Engineer
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Join IKEA's Data & Analytics team in Madrid as a Senior Data Engineer. You will architect trusted data platforms on GCP, building pipelines with tools like BigQuery, Dataflow, and dbt. Your work will directly power global expansion strategy, using Python/Scala and modern data modeling. Enjoy a fl...
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Spain , Madrid
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IKEA
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Senior Automation Engineer
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Join our team in Madrid as a Senior Automation Engineer. You will design and maintain GoLang microservices with REST/gRPC APIs. Your role involves infrastructure automation using OpenTofu and Azure Container Apps. Collaborate cross-functionally to develop innovative strategies that boost producti...
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Spain , Madrid
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Salary
40000.00 - 55000.00 EUR / Year
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Randstad
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Senior LLM Backend Engineer
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Join our team as a Senior LLM Backend Engineer and shape the future of AI-powered products. You will design, build, and optimize scalable LLM integrations using Python in a fully remote role based in Spain. We offer a personal development budget and the chance to solve cutting-edge problems in a ...
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Spain
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Not provided
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Bark
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Senior Backend Engineer
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Join our dynamic team in Spain as a Senior Backend Engineer. Develop scalable product features using Python, modern APIs, and cloud technologies like Docker/Kubernetes. You will design high-transaction systems, mentor engineers, and shape our tech strategy. We value innovation in a fast-paced env...
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Spain
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Bark
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Senior Backend Engineer - Data Ingestion
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Join our team in Spain as a Senior Backend Engineer, focusing on Data Ingestion at petabyte scale. You will design robust ETL pipelines in Golang, working with distributed systems and cloud-native architecture. Enjoy a flexible work environment, equity, healthcare contributions, and global gather...
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Spain
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ClickHouse
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Senior Security Engineer
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Join Flanks in Barcelona as a Senior Security Engineer. Strengthen security from code to cloud, using Python, Kubernetes, and GCP. Lead pentesting, automation, and secure design in a bilingual, hybrid environment. Enjoy a stunning office, flexible hours, health insurance, and team events.
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Location
Spain , Barcelona
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Salary
50000.00 - 70000.00 EUR / Year
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Flanks
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Senior Software Engineer
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Join Flanks as a Senior Software Engineer in Barcelona. You'll build and scale a SaaS platform for wealth management, handling sensitive financial data. We seek an autonomous coder with 7+ years' experience, fluent in English/Spanish. Enjoy hybrid work, health insurance, team events, and our offi...
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Spain , Barcelona
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Salary
50000.00 - 80000.00 EUR / Year
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Flanks
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Senior Machine Learning Engineer
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Join Groupon's AI-first transformation as a Senior Machine Learning Engineer in Madrid or Valencia. Architect and deploy scalable ranking and personalization models using PyTorch/TensorFlow on GCP. Lead the full ML lifecycle for systems seen by millions, with high impact and clear career growth.
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Spain , Madrid; Valencia
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Not provided
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Groupon
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Senior Analytics Engineer
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Join our team in Barcelona as a Senior Analytics Engineer. You will own critical analytics infrastructure, designing robust data models and quality frameworks using SQL, dbt, and cloud warehouses. Partner with cross-functional teams to elevate data reliability and enable confident, data-driven de...
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Spain , Barcelona
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Not provided
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Heetch
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Senior Backend Engineer
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Join Hostaway's Core team in Barcelona as a Senior Backend Engineer. You will design critical integrations with major OTAs using PHP and Go within a modern, event-driven architecture. This 100% remote role offers stock options, professional growth, and the chance to shape key technical solutions ...
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Location
Spain , Barcelona
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Not provided
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Hostaway
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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.