Empleos de lead python backend engineer en Madrid

HBX Group is seeking a senior Backend Engineer to develop core functionalities for the CivitFun SaaS platform in the hospitality sector. You will work on integrations with external systems (PMS, payments, locks), architecture design, and cloud deployment from end-to-end. You will design and implement secure backend services with Node.js, collaborate on...

BME | Bolsas y Mercados Españoles is seeking a Senior AI Backend Engineer to join the AI Engineering team. This role focuses on backend ownership, APIs, and integrations for AI productization in GenAI and Data Mining areas.The ideal candidate will have deep proficiency in Python, with experience in developing modern APIs and integrating LLMs into production...

¿Te interesaría seguir desarrollándote comoProgramador/a de IA Generativaen una empresa dedicada amejorar la calidad de vida de las personasmediante seguros, servicios de salud y atención personalizada, con100 años de experienciaen el mercado,consede en Barcelona?DesdeOxigent Technologiesseleccionamos unBackend Engineer...

Deutsche Telekom sucht einen erfahrenen Senior Backend Engineer für den Aufbau und Betrieb von produktiven Backend-Systemen im großen Maßstab. Sie arbeiten an verteilten Systemen, API-Entwicklung (Python FastAPI/Flask/Django) und einer mandantenfähigen Infrastruktur hinter KI-Inference-Endpunkten. Sie gestalten Architektur, Observability, CI/CD und...

We’re Revolutionizing Energy to Change the WorldAtOctopus Energy, we’re not your typical utility company. We’re a team of passionate people working every day to make energy 100% renewable, accessible, and fair for everyone.We believetechnology and innovation are key drivers of change. Our mission is to transform the way the world consumes energy...

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...

About us At RavenPack, we are at the forefront of developing the next generation of generative AI tools for the finance industry and beyond. With 20 years of experience as a leading big data analytics provider for financial services, we empower our clients—including some of the world's most successful hedge funds, banks, and asset managers—to enhance...

Senior Backend Engineer (m/f/d) As a Backend Engineer within Advanced Analytics (DA3) in the Chief Data & AI Office area at Allianz Partners, you will join our central AI team to build reusable AI foundations and production-grade AI services on a global scale. We are looking for an engineer with strong software engineering fundamentals and hands‑on cloud...

Lever, Inc. is seeking a Software Engineer (Front and Back end) based in Spain. You will contribute across frontend and backend development to build reliable, scalable applications in modern cloud environments. Technologies include Java, JavaScript, Python, React, Angular, Vue.js, and containerization with Kubernetes, Docker, and Containerd. You will deploy...

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...

We power people’s progress.At Preply, we’re all about creating life-changing learning experiences. We help people discover the magic of the perfect tutor, craft a personalised learning journey, and stay motivated to keep growing. Our approach is human-led, tech-enabled - and it’s creating real impact.We’ve just reached unicorn status with a $150M...

Location : Remote (Work from Anywhere) Role OverviewWe are hiring for one of our clients, seeking a Senior Backend Engineer (Node.js, AWS) to work on a full-time basis. The role involves designing, developing, and maintaining scalable backend services for a high-traffic platform. You will collaborate with cross-functional teams to deliver efficient,...

Fever is recruiting a backend engineer to build geo‑localized user platform services with a focus on data residency, multi‑region reliability and privacy compliance. You will contribute to a Python‑based stack, CI/CD pipelines, and cloud infrastructure.Within three months you design and implement end‑to‑end features, discuss architecture, and...

¿Te interesaríaliderar la arquitectura y la infraestructura críticade backend en un entorno de alto volumen? Desde Oxigent Technologies seleccionamos un/aSenior Python Engineerpara sumarse al equipo de Code Foundations enBarcelona . El equipo deCode Foundationses el núcleo del ecosistema de backend: desarrollan y mantienen la infraestructura crítica,...

Key ResponsibilitiesAs a Backend Engineer within Advanced Analytics (DA3) in the Chief Data & AI Office area at Allianz Partners, you will join our central AI team to build reusable AI foundations and production‑grade AI services on a global scale.We are looking for an engineer with strong software engineering fundamentals and hands‑on cloud and DevOps...

Innovamat es una organización educativa centrada en el aprendizaje de las matemáticas. Su propósito es contribuir a mejorar cómo se aprende esta ciencia, ofreciendo recursos, formación e investigación a la comunidad educativa. Fundada en 2017 en Barcelona, Innovamat cuenta con 31 000 docentes de más de 3 300 centros educativos de España, Estados...

We are looking for a Lead FullStack Engineer with strong backend expertise to help us build reliable, scalable, and high-quality products.You will lead a small engineering team consisting of 3 engineers and 2 QA specialists. This is a hands‑on role requiring deep involvement in architecture, complex technical challenges, and production development.We...

We are bsport. The place to be!bsport is an all-in-one platform combining boutique fitness and advanced technology. Our platform helps our partners manage their bookings, payroll, marketing and more, to streamline operations and boost their commercial success. Since we launched in 2019, we have already achieved the following: We’ve built a community of...

A global creative technology firm is seeking a Senior Software Engineer excited to build innovative tools for video advertising. This fully remote role involves improving an Ad Scoring API and designing scalable data systems. The ideal candidate will have 7+ years of backend experience, deep Python skills, and familiarity with LLMs. Join a diverse team...

CompuGroup Medical is seeking a Senior Quality Engineer (Automation & AI) for an on-site role in Madrid. You will lead test automation efforts, design frameworks in Python, and drive quality across APIs, UI, and AI components.The role requires strong automation skills and collaboration with developers in a fast-paced environment. The position emphasizes...