Empleos de senior python engineer with react en Barcelona

WHO WE ARE Macadam is a movement powered by over 14 million users who walk every day with us. We’re here to make walking more rewarding, engaging, and consistent - not just a habit, but something people genuinely enjoy. Rooted in thoughtful design, our approach helps people stick with healthier routines by making them feel simple, motivating, and fun. As...

Mindrift is looking for highly skilled Vibecode specialists to join the Tendem project (https://tendem.ai/) and drive specialized data scraping workflows for real-world use cases. Mindrift is looking for highly skilled Senior Python Data Scraping Engineers to join the Tendem project and drive specialized data scraping workflows for real-world applications....

Please submit your CV in English and indicate your level of English proficiency. Mindrift connects specialists with project-based AI opportunities for leading tech companies, focused on testing, evaluating, and improving AI systems. Participation is project-based, not permanent employment.What this opportunity involves: We're building a dataset to evaluate...

🚀 Full stack Software Engineer (Python & React) Tech Lead 📍 Barcelona based (Hybrid) 📑 Contract: Permanent or Freelance 🉐 Idioms required: English and Spanish mandatory 💡 Context & Mission For a global leader in IoT remote monitoring, working with 200 engineering partners and connecting 65,000 sensors worldwide, we are...

DescriptionIs this you?Titan Operating System S.L. (Titan OS), the Barcelona-based technology, entertainment, and advertising company, is looking for you! Our platform combines content discovery and advertising technology in one solution, helping leading TV brands unlock greater value. Titan OS powers devices from major brands including Philips, AOC and...

Senior Backend Engineer (Python) 📍 Barcelona (Madrid) | Modelo híbrido Indra Group, Tech for the future En Indra Group lideramos el desarrollo de soluciones tecnológicas punteras que impulsan la transformación digital en entornos complejos y de alto impacto. Trabajamos con arquitecturas modernas, sistemas escalables y equipos...

Fliff unpacks sports gaming into social, free-to-play games for all types of sports fans. We've built a social sports gaming experience that allows users to compete for leaderboard positioning, to achieve badges and build their status within the game.We are pioneering play-for-fun sports gaming, with our flagship social sportsbook experience that includes...

Your missionWe are scientists, doctors, techies and humanity lovers, with the mission of building neuroelectronic interfaces to cure brain disorders. INBRAIN harnesses the extraordinary material properties of Graphene, the world’s thinnest and nobel-prize winning material, to build safe, uninvasive and highly efficient neural solutions. Our mission is to...

Mindrift is looking for highly skilled Web Scraping specialists to join the Tendem project (https://tendem.ai/) and drive specialized data scraping workflows for real-world use cases. Mindrift is looking for highly skilled Python Data Scraping Engineers to join the Tendem project and drive specialized data scraping workflows for real-world applications. In...

Salary Range: €42,600.00 - €79,200.00 Job Description Summary #LI-Hybrid Location: Barcelona, Spain Relocation Support: This role is based in Barcelona, Spain. Novartis is unable to offer relocation support: please only apply if accessible. Imagine building the technology that powers the future of Finance. As a Senior Python Developer at Novartis...

About LearnWise AI We’re an AI-first startup helping universities and colleges support students and faculty with smart, knowledge-driven tools. Small team, high ownership, real user impact. LearnWise is a place where the best idea wins—no matter who says it—and where innovation and growth are in our DNA. You’ll work closely with our CTO, Head of...

About Air AppsAt Air Apps, we believe in thinking bigger—and moving faster. We’re a family-founded company on a mission to create the world’s first AI-powered Personal & Entrepreneurial Resource Planner (PRP), and we need your passion and ambition to help us change how people plan, work, and live. Born in Lisbon, Portugal in 2018—and now with offices...

The Senior Full Stack Engineer will build and own product features working closely with the tech leadership. You will contribute to both frontend and backend systems, helping ship high quality software that is used daily by customers. This role is focused on delivery, quality and collaboration with the ability to influence technical decisions. Your...

Senior Security Engineer (Freelance) — AWS & Kubernetes Infrastructure | Fast-Scaling SaaS - Barcelona Buscamos un/a Senior Security Engineer freelance para una SaaS en fuerte crecimiento (10M+ usuarios), a través de Shakers. Serás quien construya la seguridad desde cero: hardening de AWS y Kubernetes, respuesta a incidentes, y un programa de seguridad...

Cori Clinical is the operating system behind better clinical trials. Cori builds the best-in-class AI platform for the entire trial startup: research, design, authoring, review, and amendments, so the science never waits on the process. Founded in 2025 by Jorn Jansen Schoonhoven (CEO, ex-Amazon, ex-IBM) and Patricio Fernández Weisson (CTO, ex-AstraZeneca,...

WHO WE ARE Macadam is a movement powered by over 15 million users who walk every day with us. We’re here to make walking more rewarding, engaging, and consistent - not just a habit, but something people genuinely enjoy. Rooted in thoughtful design, our approach helps people stick with healthier routines by making them feel simple, motivating, and fun. As...

About the role We are looking for a Senior Full-Stack Engineer to build across the whole platform: from the Go and Python services and event-driven pipelines that power it, to the React application our customers use every day. AI is not a side project here: agents and LLM-powered workflows are core to the product, and AI-driven development is core to how we...

We are seeking a highly skilled and motivated Full Stack Laravel/Symfony/Node.js/React Developer to join our team. The ideal candidate will have a strong background in building scalable web applications using Symfony/Laravel, Node.js & React, with a deep understanding of Test-Driven Development (TDD) practices. Experience with Inertia.js is a significant...

We are the Intelligent Internet Platform. We connect People, Places and Things anywhere, managing Internet Performance better than anyone else while providing One Global Experience, giving Visibility, Control and Security through expereoOne. Expereo believes in the power of Internet connectivity. As the world's largest provider of managed internet,...

Senior Security Engineer (Freelance) — AWS & Kubernetes Infrastructure | Fast-Scaling SaaS - Barcelona We're looking for a Senior Security Engineer to join a fast-scaling SaaS company (10M+ end users) as a freelancer, via Shakers. You'll be the driving force behind building security from the ground up — hardening AWS and Kubernetes infrastructure,...