Empleos de remote senior backend java engineer en Madrid

ODOS Tech in Valencia is seeking a senior software engineer to ship features across APIs, data processing, and model services. You will participate in code reviews, help evolve deployment pipelines, and drive architecture decisions as the platform scales. Most of the team is early in their careers, so your guidance will shape how they learn. You bring 5–8...

Una plataforma SaaS en crecimiento busca un/a Senior Backend Engineer que diseñe y desarrolle servicios backend escalables usando Django y Python. Este rol clave incluye mentorizar a ingenieros junior, implementar buenas prácticas y colaborar en un entorno Agile. Se requiere experiencia en cloud computing y habilidades de comunicación excepcionales....

VOIS (Vodafone Intelligent Solutions) is seeking a Full Stack Software Engineer to deliver end-to-end platform features across Angular front-end applications and Java 21 backend services in Málaga. You will work closely with product, design, quality, DevOps and operations teams to ensure solutions are accessible, secure, performant and supported by...

**About Parser** At Parser, we are seeking a Senior Backend Engineer with strong MLOps expertise to join the Machine Learning Engineering team of a global leader in the travel industry. In this role, you will help design, build, and maintain the infrastructure that powers our ML solutions—managing data pipelines, streamlining model deployment, and...

Actual Talent is a talent acquisition consultancy that offers Specialized Search, RPO and Talent Solutions.Our purpose is to drive the growth and fulfillment of individuals and organizations. We facilitate individuals in finding inspiring opportunities and help organizations discover professionals who will take them to the next level. We do this through...

Ebury’s FinCore Engineering team in Madrid seeks a Senior Software Engineer to modernize our FX engine, reduce technical debt, and build high-throughput, regulated backend systems. You will influence platform architecture and own end-to-end delivery across a distributed cross-border team across Europe and beyond. The role focuses on Python with strong OO...

Mambu Payments (formerly Numeral) is hiring Senior Backend Software Engineers to help build the next generation of bank connectivity and payment automation products with a focus on security, stability and performance. You will own architectural decisions for high-impact projects, collaborate with Product Managers and DevOps, mentor engineers, and contribute...

Quintall is seeking a Senior Backend Developer to join its IT Digital Marketing team in Barcelona. You will design, build, and continually improve backend services and APIs that support digital marketing and sales capabilities. As a senior member of an international Agile team, you will own backend solutions, contribute to architecture and standards, and...

Pearson is seeking an autonomous Senior Software Developer to design and deliver backend components for AI-powered digital products. You will work with cross-functional teams to define objectives, requirements, and timelines, and you will lead projects that emphasize scalable services and secure, reliable APIs. Based in a hybrid setup with offices in Madrid...

AiFi is seeking a Backend Software Engineer to optimize highly concurrent systems and scale our store operating systems from small to large venues. You will shape core backend microservices and collaborate with app developers and product managers to address real-world use cases and bottlenecks. Join a platform that enables real-time analytics and scalable...

Pleo is seeking a Senior Backend Engineer to join the Data Serving team that owns the production‑grade boundary between Pleo's raw product data and everyone who consumes it, including internal product teams, AI agents, and customers directly accessing their own data. This Senior Backend Engineer role builds and owns that boundary: APIs and the...

Supersonik seeks Senior Engineers to join our core team in Barcelona. You will tackle complex technical problems, shape product architecture from day one, and thrive in a fast-growing startup. You should be fluent in modern Python, async programming, and adept at building scalable, event-driven systems. You’ll work across frontend to infrastructure to...

Vortech PCI Group busca un/a Senior Backend Developer para unirse a un nuevo hub de Inteligencia Artificial Generativa en Valencia, dentro de una organización internacional del sector financiero. La persona seleccionada participará desde el inicio en la definición y construcción de una plataforma de Agentic AI sobre Azure, contribuyendo a decisiones de...

Shalion is seeking a Senior Backend Engineer to lead backend initiatives across multiple products and shape the technical roadmap. You will manage one backend engineer from day one and guide the team as it grows, balancing hands-on architecture with leadership responsibilities. The role emphasizes product-focused engineering, AI-enabled automation, and close...

Sage is seeking a Senior Backend Developer to join our HCM localisation team based in Barcelona. In this hybrid role, you will design and maintain scalable backend services for our cloud-based enterprise product. Strong expertise in Scala, MySQL, and AWS is required. The candidate will work collaboratively to improve product performance and maintain robust...

Una empresa tecnológica en España busca un desarrollador back-end Python con experiencia en FastAPI o Flask para construir plataformas de software alineadas con la estrategia de IA. Se requiere al menos 5 años de experiencia, habilidad en sistemas distribuidos, APIs RESTful y pipelines de CI/CD. Un entorno flexible que fomenta el trabajo en equipo y un...

Deine AufgabeWir suchen einenSenior Backend Engineermit ausgeprägten System-Design-Fähigkeiten und Erfahrung im Aufbau von Produktionsinfrastruktur. Diese Rolle umfasst die Architektur und Wartung von Backend-Plattform-Services hinter AI-Inference-Endpunkten – ein mandantenfähiges System, das Authentifizierung, API-Key-Management, Nutzungsmessung,...

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Staff Backend Engineer, AI Tooling based in Spain.This is a high-impact engineering role focused on building the platforms, tooling, and AI-powered capabilities that help engineering teams move faster without compromising...

NeuralTrust in Barcelona, Spain, is seeking a Senior Software Engineer to scale our platform and advance AI security technologies. You will contribute to backend systems using Go and Python, own end-to-end initiatives from design to deployment, and collaborate with a talented, multi-skilled team. The role emphasizes building robust, secure, and measurable...

Merlin Digital Partner is seeking a Senior Software Engineer (Python) to design backend systems, cloud infrastructure and APIs powering its connected health technologies. You will work closely with Product, AI, Embedded and Frontend teams to deliver scalable, reliable software across the stack. You will own architectural decisions, build robust APIs,...