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Backend .NET Engineer — Flexible Hours & Remote Role

Garaje de ideas en Madrid busca un desarrollador BackEnd con experiencia en .NET Core. La persona elegida trabajará en proyectos nacionales, participando en un ambiente Agile y con responsabilidades que incluyen desarrollo de software, testing y soporte en producción. Ofrecemos contrato indefinido, flexibilidad ...

Senior Backend Engineer for New Games Studio

A leading gaming company based in Catalunya, Barcelona, is seeking a Backend Engineer to develop and maintain services for popular games, requiring experience in Golang and PHP. The role involves collaboration with various roles to integrate components, writing technical designs, and ensuring the performance and ...

Senior Backend Engineer | Python Django | Hybrid/Remote

Una empresa tecnológica en crecimiento en Majadahonda busca un Desarrollador/a Sr Backend con amplia experiencia en Python Django para liderar el desarrollo de su infraestructura backend. Se requiere un mínimo de 5 años de experiencia, habilidad para diseñar arquitecturas escalables y trabajar con Jira. El puest ...

Senior Python Backend Lead Hybrid, Flexible Hours

A software development company in Barcelona seeks a Senior Python back-end engineer to lead backend development for an AI-powered platform. You'll design scalable systems, collaborate with product teams, and deliver impactful technical solutions. The ideal candidate has over 4 years of experience and a strong pr ...

Senior Backend Engineer Node.js/TS, Remote Europe

A leading digital advertisement company is seeking an experienced Senior Backend Engineer to optimize their SaaS applications. This role emphasizes development of microservices using NodeJS, TypeScript, and various back-end solutions. The ideal candidate will have 5+ years of experience, a strong grasp of AWS an ...

Senior Backend Engineer for Scalable Data Platforms

A leading software development firm in Barcelona is seeking a Senior Back End Engineer. This role requires strong experience in Python, PostgreSQL, and Kubernetes, with a focus on creating innovative solutions for finance teams. Candidates should have a product mindset and be team players, able to collaborate ef ...

Staff Go Backend Engineer Remote, Flexible Hours

A leading technology company is seeking a Staff Go Engineer for a remote role. You will design and optimize Go-based microservices, architect cloud-native solutions, and lead backend development for distributed systems. The ideal candidate has 7+ years of software development experience, strong Go expertise, and ...

Junior Backend Engineer (Node.js) — Learn, Build, Impact

An innovative company is on the lookout for a Junior back-end engineer to join a dynamic team focused on transforming business technology. In this role, you will maintain and develop critical back-end systems that support the operational needs of a leading wedding marketplace. With a primary focus on Node.js and ...

Backend Engineer (Hybrid) – AI Driven Fintech Platform

A fintech startup is seeking a Backend Engineer in Barcelona to build and scale systems for their AI-driven debt-collection platform. The role involves designing scalable backend solutions, developing internal interfaces, and integrating AI into backend workflows. Ideal candidates should have 3+ years in backend ...

Remote Principal Backend Engineer Microservices & API Lead

A leading IT services company is seeking a Principal Backend Engineer for a fully remote position. This role involves leading the architectural design of complex backend systems and driving strategic decisions in technology adoption. Candidates should have over 10 years of experience in backend development and e ...

Senior C++ Backend Engineer — Remote/Hybrid Options

A leading company in the technology sector is seeking an R&D programmer to develop a high-performance backend service for their Smart Analytics product. Candidates should be proficient in C++ and have a strong foundation in machine learning and programming in multi-core environments. The role offers flexibility ...

Senior Backend Engineer Build scalable payments platform

A leading global player in employee benefits seeks a Senior Backend Engineer in Madrid. In this role, you will design and optimize backend services with a focus on performance and testing. The ideal candidate has solid software engineering skills, experience with Node.js, and familiarity with distributed service ...

Jefe de Proyecto y Backend (Node.js) | Microservicios

Una empresa de tecnología de smartwatch está buscando un/a Project Manager Desarrollador/a Backend para unirse a su equipo en Castro-Urdiales. Las responsabilidades incluyen el diseño y desarrollo de APIs, así como colaborar en arquitecturas usando Node.js y PostgreSQL. Se requiere experiencia en mensajería con ...

Staff Backend Engineer Adaptive Telemetry | Spain | Remote

Grafana Labs is a remote-first, open-source powerhouse. There are more than 20M users of Grafana, the open source visualization tool, around the globe, monitoring everything from beehives to climate change in the Alps. The instantly recognizable dashboards have been spotted everywhere from a NASA launch an ...

Hybrid Backend Engineer (Python) – Kubernetes & AWS, Barcelona

A healthcare technology company in Barcelona is seeking a Backend Engineer to design and build scalable backend services using Python, Kubernetes, and AWS. This role offers the chance to impact healthcare technology by focusing on robust architecture and deploying solutions in a cloud-native environment. Candida ...

Payments Backend Engineer – Scale Global Subscriptions (Remote)

A leading tech company in Barcelona is seeking a back-end developer for its Payments Team. You will build features across Proton's product suite, focusing on scalable architectures and user experience. Ideal candidates should have proven experience in back-end development, expertise in SQL, and familiarity with ...

Python Backend Engineer | FastAPI/Django/Flask – Madrid

A leading AI solutions provider in Madrid is seeking a Python Software Development Engineer to ensure the robustness and performance of backend systems. You will assist in creating back-end components, manage database schemas, and participate in code reviews. The ideal candidate has experience with Python and Fa ...

AI Web3 Backend Engineer – AI Agent Economy

Overview We are looking for a AI Web3 Backend Engineer with deep expertise in DeFi protocols , backend engineering , and agentic architectures . You will play a pivotal role in designing and building the marketplace of AI agents , enabling them to collaborate, e ...

Backend Engineer: Automation & Infra (Hybrid, Fixed Term)

A technology recruitment agency in Zaragoza is seeking a Backend Engineer on a fixed-term contract to build automation pipelines and robust services for advanced AI technologies. Ideal candidates will have 2-5 years of experience in backend development, strong skills in Docker, and a solid understanding of REST ...

Backend SaaS Engineer for Ubuntu Landscape (Remote)

A leading open-source technology firm is seeking a passionate software engineer to join its team. The role involves developing the next generation management solution for Ubuntu, focusing on high-quality code and collaboration with a distributed team. The ideal candidate will be proficient in Python and web fram ...

AI Native Backend Architect (Senior Software Engineer)

A leading AI technology firm in Alicante, Spain, seeks an AI-Native Senior Software Engineer to design maintainable and scalable systems. This role demands strong software engineering fundamentals, experience with AI tools, and the ability to operate in an AI-augmented workflow. Candidates should have expertise ...

Senior Backend Engineer — Remote & Scalable Data Pipelines

A leading ad tech firm in Barcelona is looking for a skilled Software Engineer to build scalable systems and enhance product performance in a fast-paced environment. Responsibilities include managing reporting products, collaborating with teams to modernize services, and ensuring high-quality code. The ideal can ...

Senior Real Time Backend Engineer (Node/Go)

A leading tech company in Madrid is seeking a Senior Software Engineer to design and scale its conversational AI platform. The ideal candidate will have over 5 years of experience in software engineering, with strong skills in Node.js, Go, and cloud infrastructure. Responsibilities include designing backend serv ...

Senior Backend Engineer: Payout & Fraud (Hybrid/Remote)

A leading tech refurbishment marketplace is seeking a Senior Backend Engineer in Barcelona. The role involves optimizing performance and system design within a hybrid work environment. Applicants should have over 5 years of backend development experience and a strong understanding of microservices and APIs. Join ...

Senior Backend Engineer ERP Automation (Employee Owned)

A leading SaaS company in Barcelona seeks a skilled Software Engineer to drive impactful product improvements. This role involves designing and coding high-quality software, collaborating with business stakeholders, and guiding technical direction. Ideal candidates will have a degree in Computer Science and 5+ y ...

Senior Backend Engineer: AI, Automation & AWS (Remote)

Una empresa de tecnología en crecimiento busca un/a Desarrollador/a Backend Senior para unirse a su equipo en Barcelona. Este rol implica trabajar con IA y microservicios, desarrollando servicios backend y colaborando con equipos técnicos. Se ofrece un puesto 100% remoto, contrato indefinido y beneficios como se ...

Staff Backend Engineer (PHP/Go) Remote Europe

A leading vacation rental management platform is seeking a Staff Backend Engineer. This fully remote role requires expertise in SaaS software development, particularly in PHP and Go, and a strong understanding of relational databases. Responsibilities include collaborating with Product Managers and designing RES ...

Senior Python Backend Engineer: Scale & Architecture Lead

A dynamic tech company in Barcelona is seeking a Senior Backend Engineer to enhance backend systems for the Spanish market. The ideal candidate should have over 5 years of backend development experience, strong expertise in Python, and the ability to drive technical excellence. Candidates will work in an inclusi ...

Senior Platform Engineer Remote, Crypto Backend & Infra

A leading crypto technology company is seeking a Senior Platform Engineer to manage backend systems and infrastructure. You'll design, build, and maintain APIs and services supporting core product features. The ideal candidate has 7+ years in backend engineering, strong proficiency in Golang, and experience with ...

Lead Magento Backend Architect — Enterprise Commerce & Stability

A leading digital solutions company in Madrid is seeking a Lead Backend Engineer to enhance enterprise Adobe Commerce platforms. The role entails making thoughtful architectural changes while ensuring stability within the existing systems. Candidates should have significant experience with Magento 2 and a proven ...

Lead Backend Engineer: AI Driven Microservices Leader

About The OpportunityYou will be part of the Intelligent Operations Platforms (IOP) or the Assistance segments, which cross-functional teams power the operations at N26 and in some cases enable other tech teams through a robust platform approach.We are seeking a talented Lead Engineer ...

Madrid Based Backend Product Engineer: Integrations Lead

A global e-invoicing platform is seeking a Backend Product Engineer in Madrid. The ideal candidate will have experience in backend engineering, particularly with Golang, and possess strong communication skills. This role offers a unique opportunity to own the product integration processes from start to finish, i ...

Principal Backend Engineer Remote Work | REF#285736

Overview Join to apply for the Principal Backend Engineer - Remote Work | REF# role at BairesDev . At BairesDev®, we’ve been leading technology projects for over 15 years. We deliver cutting-edge solutions to giants like Google and innovative startups in Silicon Valley. Our ...

Desarrollador Go Backend — Formación y Retribución Flexible

Una empresa del sector ferroviario busca un Desarrollador Back-end especializado en Go (Golang) para contribuir al desarrollo y mantenimiento de aplicaciones en Donostia - San Sebastián. Se requiere un mínimo de 3 años de experiencia en desarrollo backend, conocimiento de tests, Git y Linux. Ofrecen contratación ...

Senior Backend Engineer Golang, Madrid (M, ES)

Join Swiss Re’s IT Resilience unit and contribute to building a robust, future-ready IT landscape that underpins the organisation at global scale. Our team is a diverse, internationally connected group of engineers and architects, united by a commitment to pragmatic engineering, operational excellence, an ...

Senior Backend Engineer Scale Global Payment Platforms

A global employee benefits firm in Madrid seeks a Senior Backend Engineer. In this role, you'll collaborate with a diverse team to design and optimize backend services for seamless payment solutions. We're looking for someone with outstanding software engineering skills and experience in Node.js. Our ideal candi ...

Senior .NET Backend Engineer – Gaming, Azure & MongoDB

Descripción del puesto / FuncionesEn Pasiona buscamos un/a Descripción del puesto / FuncionesEn Pasiona buscamos un/a Senior .NET Developer con sólida experiencia en desarrollo backend para incorporarse a un importante cliente del sector gamin ...

Senior Backend Engineer Python/Django, Scale & Impact

A leading Ed-Tech company is seeking a Senior Engineer to join their team. In this role, you'll develop backend features using Python/Django and collaborate with cross-functional teams to deliver engaging product features. You're expected to show ownership and guide the team in improving technical practices whil ...

Senior Backend Engineer – Go & Distributed Systems (Hybrid)

A leading fintech company is looking for a Backend Engineer to collaborate within their dynamic engineering teams in Barcelona. The ideal candidate should have experience in backend technology, a product mindset, and a willingness to work in a team. This role offers a competitive salary based on experience, equi ...

Senior Backend Engineer Python, APIs & Scale (Remote)

A tech-driven services marketplace is seeking a Senior Backend Engineer in Spain for a fully remote role. The position emphasizes innovation and problem-solving within a small, agile team. Candidates should have 5+ years of Python experience, proficiency in API development, and knowledge of Docker. Responsibilit ...

Senior Backend Engineer AI Powered Travel Platform

A leading online travel agency in Barcelona seeks a Senior Back-end Software Engineer. This role focuses on developing systems for travel product management using technologies like PHP and Node.js. The ideal candidate will solve complex problems and work in a dynamic environment. Benefits include a competitive c ...

Junior Backend Engineer: Build Scalable Gaming Systems

A leading game development company in Barcelona is seeking a Junior Server Engineer to join their Yahtzee! With Buddies team. The role focuses on developing engaging gaming experiences and requires recent graduates passionate about coding and solving complex problems. Candidates should have a solid understanding ...

Staff Engineer LiveOps Backend (C#) | Hybrid Barcelona

A leading video game company is seeking a Staff Engineer for its Monopoly GO! team in Barcelona. This role requires a strong background in C# development, system design, and performance optimization. You will design and maintain systems that support game operations, collaborate with diverse teams, and drive engi ...

Senior Node.js Backend Engineer: Lead & Scale Systems

A leading on-demand services company in Barcelona is looking for a Backend Staff Engineer to lead technical standards and mentor developers. The ideal candidate will have over 10 years of backend engineering experience with Node.js and a strong foundation in programming fundamentals. Responsibilities include ove ...

Backend Engineer (Python) – Cloud Health Data Platform

A healthcare data collaboration platform is seeking a Backend Engineer to design and build scalable services in a cloud-native environment. Located in Barcelona, this role involves developing Python-based systems with a strong focus on performance, security, and reliability. Ideal candidates will have a bachelor ...

AI Web3 Backend Engineer – AI Agent Economy

Hybrid We are looking for a AI Web3 Backend Engineer with deep expertise in DeFi protocols , backend engineering , and agentic architectures . You will play a pivotal role in designing and building the marketplace of AI agents , enabling them to collaborate, exec ...

AI Agent Web3 Backend Architect (DeFi & A2A)

A leading Web3 technology firm is looking for an AI Web3 Backend Engineer to design and build the AI Agent Marketplace backend. You will leverage your expertise in DeFi protocols and backend engineering to implement multi-agent workflows, integrate A2A protocols, and deploy large-scale systems. Strong familiarit ...

Automation and AI Engineer (Unity & Backend Technologies)

You’ll be joining a newly formed Automation and AI team at Aristocrat, passionate about redefining how we develop, operate, and maintain our live games. Our mission is to build pipelines, tools, and solutions powered by AI that automate repetitive tasks, lower operational overhead, and open new creative op ...

Automation and AI Engineer (Unity & Backend Technologies)

Automation and AI Engineer (Unity & Backend Technologies) page is loaded## Automation and AI Engineer (Unity & Backend Technologies)remote type: Hybridlocations: Barcelona, Spaintime type: Full timeposted on: Posted Todayjob requisition id: R You’ll be joining a newly formed Automation and AI team at A ...

Backend Python Engineer for AI Energy Platform

A leading energy technology startup in Barcelona is seeking a Mid-Level Python Developer to join their team focused on innovative AI Data Platforms for sustainability. Responsibilities include developing Python applications, creating APIs, and collaborating on continuous improvement. Candidates should have a rel ...

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    Backend Fullstack Developer Java Jobs in Spain Job Search Guide, Trends and Insights