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Backend Engineer Spain Jobs

26 Job Offers

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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Until further notice
Sr Backend Engineer
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Join our core engineering team in Valencia as a Senior Backend Engineer. Build and scale our AI-driven Knowledge Processing Unit using Go/Python and event-driven architectures. Work with Kafka, Kubernetes, and microservices to power reliable enterprise AI agents. Enjoy a competitive package and s...
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Spain , Valencia
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Maisa
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Until further notice
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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Until further notice
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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Backend Engineer II - Tracking UI SDK
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Join Delivery Hero's Central Tracking SDK team in Barcelona as a Backend Engineer II. You will build high-performance APIs for our native UI SDKs, using Java/Kotlin and cloud technologies. Enjoy a hybrid model, global work flexibility, and comprehensive benefits like wellbeing support and enhance...
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Spain , Barcelona
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Delivery Hero
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Until further notice
Staff Backend Engineer - Product Platform
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Lead our developer productivity as a Staff Backend Engineer in Barcelona. Design and optimize the core platforms, frameworks, and AI-powered tools that accelerate the entire engineering organization. You will need 10+ years of experience building scalable systems and improving CI/CD and developer...
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Spain , Barcelona
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DocPlanner GmbH
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Until further notice

About the Backend Engineer role

Explore the dynamic and critical field of backend engineering, where you can find some of the most sought-after and rewarding tech jobs available. Backend engineers are the architects of the digital world, building the server-side logic, databases, and application programming interfaces (APIs) that power everything from the websites you browse to the mobile apps you use daily. While frontend developers create the visual elements users interact with, backend engineers work behind the scenes to ensure data is processed, stored, and delivered securely, reliably, and at lightning speed. These jobs are fundamental to the functionality of any online service, making backend engineers indispensable in virtually every industry.

Professionals in these roles are typically responsible for designing, developing, and maintaining the core components of a software system. A typical day might involve writing clean, efficient code for new features, optimizing existing databases for better performance, and building robust APIs that allow different software components to communicate seamlessly. Common responsibilities include developing and managing servers and serverless architectures, integrating with third-party services and data sources, and ensuring the security of data against cyber threats. Furthermore, backend engineers are tasked with implementing data storage solutions, which can range from traditional SQL databases to modern NoSQL systems, depending on the project's needs. A significant part of these jobs also involves creating and maintaining continuous integration and continuous deployment (CI/CD) pipelines to automate testing and deployment, as well as designing comprehensive monitoring and alerting systems to guarantee high availability and quickly resolve any production issues.

To succeed in backend engineer jobs, a strong foundation in computer science principles is essential. Candidates typically need proficiency in one or more server-side programming languages such as Java, Python, C++, Go, or Scala. A deep understanding of database technologies, both SQL (e.g., PostgreSQL, MySQL) and NoSQL (e.g., MongoDB, Redis), is a standard requirement. Knowledge of web frameworks, containerization tools like Docker and Kubernetes, and cloud service providers (AWS, Google Cloud, Azure) is also highly valued. Beyond technical prowess, these roles demand strong problem-solving skills to debug complex issues and architect scalable systems. Effective collaboration is key, as backend engineers frequently work alongside frontend developers, product managers, and data scientists. They must be proactive, adaptable to evolving technologies, and committed to writing well-documented, tested code. Whether you are an entry-level developer or a seasoned tech lead, backend engineer jobs offer a challenging and impactful career path at the heart of technological innovation.