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Senior Software Engineer Spain Jobs

28 Job Offers

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Senior Embedded Software Engineer
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Senior Embedded Software Engineer sought by TKH Security in Málaga, Spain. Design and implement C/C++ firmware for advanced camera systems, specializing in video compression (H.264, H.265) and streaming protocols. Requires 5+ years of embedded Linux experience and expertise in TCP/UDP, RTSP, and ...
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Spain , Málaga
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Parking Network B.V.
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Senior FrontEnd Software Engineer
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Spain , Barcelona
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Amaris Consulting
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Senior Software Engineer
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Join our Barcelona team as a Senior Software Engineer on the core C&E platform. Design and own scalable backend systems, data pipelines, and APIs that power customer segmentation and personalization. We seek an engineer experienced in SaaS architecture and high-throughput systems. Enjoy a hybrid ...
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Spain , Barcelona
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Bsport
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Senior Software Engineer - AI Platform
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Join our team as a Senior AI Software Engineer in Spain. Implement and integrate cutting-edge LLMs and GenAI APIs to enhance real-world applications. We seek strong Python skills and hands-on RAG, prompt engineering, and CI/CD experience. Enjoy remote work, relocation support, health insurance, a...
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Spain
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Fever
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Senior Software Engineer
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Join our Engineering team as a Senior Software Engineer in Spain. Design, build, and own scalable services using RESTful APIs and relational databases. We value clean code, CI/CD, and offer remote work, relocation support, and great benefits.
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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 Full Stack Software Engineer
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Join bsport, a leading fitness-tech platform, as a Senior Full Stack Engineer. Design scalable microservices and modern React interfaces in a dynamic, hybrid environment. Enjoy competitive compensation, equity, health insurance, and fitness perks in Barcelona or Paris.
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Spain; France , Barcelona Tasso; Paris
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Bsport
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Senior Software Engineer - Frontend
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Join Microsoft's Azure Data team as a Senior Frontend Software Engineer in Spain. Design and develop world-class user experiences for cutting-edge big data and AI analytics products like Microsoft Fabric. Utilize your expertise in JavaScript, TypeScript, and modern frameworks (React/Angular/Vue) ...
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Spain , Multiple Locations
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Microsoft Corporation
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Senior Software Engineer
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Join Microsoft's Ad SDK team in Barcelona as a Senior Software Engineer. Design and optimize high-performance JavaScript/TypeScript SDKs for browser environments. Tackle complex technical challenges in ad-serving technology within a global team. Requires expertise in browser internals and coding ...
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Spain , Barcelona
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Microsoft Corporation
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Senior Software Engineer with Python
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Join a leading global legal tech platform in Madrid as a Senior Software Engineer. Utilize your 6+ years of experience with Python, TypeScript, and modern frameworks to build scalable, high-performance web applications. Enjoy a flexible, remote-friendly culture focused on innovation and well-bein...
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Spain , Madrid
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Babel Profiles
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Senior Software Engineer (Java)
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Join our Madrid team as a Senior Java Engineer. Design and scale a high-performance distributed platform, impacting businesses from day one. Mentor peers, drive architectural decisions, and optimize robust financial data systems. We value clear communication, ownership, and fast-paced iteration w...
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Spain , Madrid
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Adyen
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Senior Software Engineer - Geolocalized Services
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Join our team as a Senior Software Engineer specializing in Geolocalized Services. You will design and build scalable, multi-region backend systems with a strong focus on data residency and privacy compliance. We seek expertise in geo-distributed architecture, CockroachDB/AWS DynamoDB, and backen...
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Spain
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50000.00 - 70000.00 EUR / Year
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Fever
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Senior Software Engineer - Data Science
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Spain , Multiple Locations
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Microsoft Corporation
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Senior Software Engineer
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Join Microsoft's Search Growth team in Barcelona as a Senior Software Engineer. Design and build scalable, consumer-facing search experiences for Bing using C++, Java, or Python. Drive data-driven decisions through A/B testing in a fast-paced, full-stack environment.
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Spain , Barcelona
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Microsoft Corporation
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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 Fullstack Software Engineer - Payments & Fraud
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Spain
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Hopper
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Senior Software Engineer, Full Stack
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Spain
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Hopper
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Senior Software Engineer (GOlang)
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Join our Engine team as a Senior Software Engineer specializing in GOlang. You will build and scale the core runtime for Workato's recipe execution, focusing on performance, durability, and distributed systems. This role requires 7+ years of backend experience with scalable applications, database...
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Spain , Barcelona; Madrid
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Workato
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Senior Software Engineer
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Join our team in Barcelona as a Senior Software Engineer. You will build complex Ruby on Rails applications and robust backend APIs, collaborating across teams. We seek 5+ years of Rails expertise, deep Ruby knowledge, and experience with Postgres and caching. Contribute to all development phases...
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Spain , Barcelona
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Workato
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Senior Software Engineer
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Join our team as a Senior Software Engineer in Barcelona or Madrid. You will build complex Ruby on Rails applications and robust backend APIs, collaborating across teams. We seek 5+ years of Rails experience, deep Ruby knowledge, and expertise in Postgres and caching. Contribute to all developmen...
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Spain , Barcelona; Madrid
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Workato
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Senior Software Engineer - Geolocalized Services
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Join our team as a Senior Software Engineer specializing in Geolocalized Services. You will design and build scalable, multi-region backend systems with a strong focus on data residency and privacy compliance. The role requires expertise in geo-distributed systems, CockroachDB or DynamoDB, and ba...
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Location
Spain
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Salary
50000.00 - 70000.00 EUR / Year
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Fever
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About the Senior Software Engineer role

Senior Software Engineer jobs represent a pivotal career stage where technical expertise converges with leadership and strategic influence. These professionals are the cornerstone of software development teams, responsible for designing, building, and maintaining complex, scalable systems that power modern businesses. Moving beyond foundational coding tasks, senior engineers architect solutions, make critical technology decisions, and mentor others, ensuring both product excellence and team growth.

Typically, individuals in these roles undertake a broad spectrum of responsibilities. They are deeply involved in the full software development lifecycle, from requirement analysis and system design to implementation, testing, deployment, and ongoing optimization. A core duty is architectural design, where they choose appropriate technologies, design patterns, and frameworks to create robust, secure, and scalable applications. This often involves building backend services, APIs (RESTful or GraphQL), and dynamic frontend interfaces. They ensure code quality through rigorous practices like code reviews, writing comprehensive tests (unit, integration), and establishing CI/CD pipelines. Furthermore, senior software engineers frequently collaborate with cross-functional partners, including product managers, designers, and DevOps specialists, to translate business needs into technical specifications and seamless user experiences.

The skill set for these jobs is both deep and wide. Proficiency in one or more core programming languages (such as Python, Java, JavaScript/TypeScript, C#, or Go) is essential, alongside expertise in relevant frameworks and libraries for both frontend (e.g., React, Angular) and backend development. A strong grasp of data structures, algorithms, and system design principles is mandatory. Experience with cloud platforms (AWS, Azure, GCP) and their services for computing, storage, and networking is increasingly standard. Knowledge of database technologies, encompassing both SQL (PostgreSQL, MySQL) and NoSQL (MongoDB, DynamoDB) systems, is crucial. Beyond technical acumen, senior roles demand excellent problem-solving abilities to debug complex issues and optimize performance. Soft skills are equally important; effective communication to articulate technical concepts to non-technical stakeholders, project leadership, and the ability to mentor junior developers are key differentiators.

Common requirements for Senior Software Engineer jobs usually include a bachelor’s degree in computer science or a related field, although substantial equivalent experience is often acceptable. Most positions seek candidates with 5+ years of professional software development experience, demonstrating a proven track record of shipping and maintaining production systems. Employers look for individuals who exhibit end-to-end ownership of projects, a passion for continuous learning in a rapidly evolving field, and a strategic mindset focused on long-term maintainability and business impact. For those seeking to lead through technology and drive meaningful innovation, senior software engineer jobs offer a challenging and rewarding career path at the heart of the digital world.