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Senior Backend Engineer Spain Jobs

13 Job Offers

Senior Backend Engineer
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Join bsport as a Senior Backend Engineer in Barcelona. Design and own scalable backend systems for our core C&E platform, powering customer data pipelines and personalization. Enjoy a hybrid model, health coverage, and a vibrant, multicultural team.
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Spain , Barcelona
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Not provided
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Bsport
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Senior Backend Engineer
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Join bsport as a Senior Backend Engineer in Barcelona or Paris. Own a product vertical for a platform serving 10M+ users across 30+ countries. Design scalable microservices, lead large projects, and work with cutting-edge tech like Django, AWS, and Kafka. Enjoy a competitive package with equity, ...
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Spain; France , Barcelona Tasso; Paris
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Bsport
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Senior Backend Engineer
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Join our agile team in Spain as a Senior Backend Engineer. You will design scalable APIs, business logic, and datastores using Python and modern cloud tech like Docker/Kubernetes. Drive product transformation in a fast-paced, test-and-learn environment while mentoring peers. Expertise in producti...
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Spain
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Bark
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Senior Java Backend Engineer
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Join a dynamic team as a Senior Java Backend Engineer in Spain. Design and implement scalable, event-driven systems using Java, Spring Boot, and REST APIs. Enjoy a home office role with flexible hours, health insurance, and professional growth. Make a real impact in a fast-paced, high-growth envi...
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Spain
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Fever
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Senior Backend Software Engineer - Payments & Fraud
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Spain
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Hopper
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Senior Backend Engineer - Health Profile team
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Join our Barcelona-based Health Profile team as a Senior Backend Engineer. Develop core, scalable products in PHP/Symfony within a distributed system, focusing on patient data accessibility and features like Care Circle. We offer a remote/hybrid model, flexible hours, and a comprehensive benefits...
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Spain , Barcelona
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Gipo
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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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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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Not provided
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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 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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Spain , Barcelona
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Hostaway
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Senior Backend Engineer
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Join Job&Talent in Madrid as a Senior Backend Engineer. Design and scale Kotlin-based distributed systems powering a major staffing platform. Own the full feature lifecycle for applications serving millions of users daily. Enjoy competitive pay, meaningful benefits, and a chance to impact global ...
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Spain , Madrid
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InStaff
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Senior Backend Engineer
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Join our team in Barcelona as a Senior Backend Engineer. Develop scalable Java/Spring Boot microservices for our high-traffic mobility platform. Enjoy a collaborative environment, work-from-anywhere flexibility, and competitive compensation.
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Spain , Barcelona
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Adevinta
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Senior Backend Engineer
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Join our new Barcelona engineering hub as a Senior Backend Engineer. Shape the future of recruiting software using modern tech like TypeScript, RDBMS, and message brokers. Enjoy a competitive salary, Apple hardware, hybrid remote work, and relocation support.
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Spain , Barcelona
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join.com
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About the Senior Backend Engineer role

Explore the critical and dynamic world of Senior Backend Engineer jobs, where seasoned professionals architect the digital foundations that power modern applications and services. As a Senior Backend Engineer, you are the cornerstone of a product's server-side logic, databases, APIs, and infrastructure, ensuring scalability, reliability, security, and performance. This role transcends basic coding; it involves deep system design, strategic decision-making, and mentoring others to elevate the entire engineering team's output. Professionals in these positions are tasked with transforming complex business requirements into robust, efficient, and maintainable technical solutions that serve millions of users or handle sensitive data with precision.

Typical responsibilities for a Senior Backend Engineer are comprehensive and impactful. They commonly own the design, development, and deployment of backend services and APIs that serve front-end clients and other systems. This includes designing data models, selecting appropriate databases, and implementing business logic. A significant part of the role involves driving architectural discussions, making pivotal decisions on technology stacks, and defining long-term technical roadmaps for their domains. Senior Backend Engineers are expected to champion engineering best practices, conducting rigorous design and code reviews, establishing patterns for testing (unit, integration, load), and implementing robust CI/CD pipelines. They actively troubleshoot and optimize systems for performance and fault tolerance, often leading incident response and firefighting for live production issues. Collaboration is key; they work closely with Product Managers to translate user needs into feasible technical plans and partner with Frontend, DevOps, QA, and Infrastructure teams to deliver cohesive functionality.

The skill set required for these senior-level jobs is both broad and deep. Typically, candidates possess 5+ years of backend development experience, with proven expertise in one or more server-side languages such as Python, Java, Go, C#, Node.js, or C++. A strong grasp of system design principles, distributed systems, microservices architecture, and database design (SQL and NoSQL) is essential. Experience with cloud platforms (AWS, GCP, Azure), containerization (Docker, Kubernetes), and message brokers (Kafka, RabbitMQ) is highly valued. Beyond technical prowess, Senior Backend Engineers must exhibit excellent problem-solving abilities, capable of breaking down ambiguous challenges into actionable plans. Leadership and communication skills are paramount, as the role involves mentoring junior developers, providing technical guidance, and articulating complex concepts to cross-functional stakeholders. A commitment to continuous learning, agility in fast-paced environments, and a proactive approach to code quality and system resilience define success in these critical jobs, making Senior Backend Engineers invaluable assets in building the reliable digital experiences of today and tomorrow.