Empleos de senior front end developer javascript en Barcelona

We are a global team of innovators and pioneers dedicated to shaping the future of observability. At New Relic, we build an intelligent platform that empowers companies to thrive in an AI-first world by giving them unparalleled insight into their complex systems. As we continue to expand our global footprint, we're looking for passionate people to join our...

Join Impress - Europe's Leading Health-Tech Innovator!We believe everyone deserves a smile they'll love.With 150+ clinics across 10 countries and rapid growth, we're improving lives worldwide.Senior Front-end Engineer - BackofficeWe are looking for a Senior Front-end Engineer - Backoffice to join our Onsite Team in Barcelona and lead the transformation of...

Overview En este rol de Fullstack Developer Senior, lideras la construcción de soluciones end-to-end con .NET (C#) en backend y React en frontend. Trabajas en APIs, UI modernas y una arquitectura escalable dentro de un entorno ágil, colaborando estrechamente con producto y UX. Buscamos impacto en rendimiento, mantenibilidad y entrega continua de valor en...

Develop and maintain scalable APIs using Python/Django or Golang, optimize PostgreSQL, and integrate with third-party systems. Manage AWS infrastructure, automate deployments via CI/CD, and work with AI coding assistants.

We are looking for a Senior Backend Developer to join our IT Digital Marketing team within the Digital Sales Hub in Barcelona. In this role, you will design, build, and continuously improve backend services, APIs, databases, and integrations that support our digital marketing and sales capabilities. You will develop scalable, secure, and reliable...

Senior IT Consultant 360º & Manager @ Talent-R | Cybersecurity, Cloud & DevOps | Business Development | LEINN Graduate They are looking to hire a Senior Frontend Engineer to join their engineering team. The selected candidate will be responsible for designing, developing, and optimizing the user interface of their cybersecurity platform, working...

Fut-ure Recruitment and Technology is seeking a Senior Front-End Developer for a disruptive startup in Barcelona. The role focuses on building scalable front-end solutions with React, Redux and modern UI/UX principles, working in an AI-driven messaging environment.The ideal candidate has strong knowledge of HTML5, CSS/SASS, Bootstrap v4+, and experience with...

Smadex is a cutting-edge ad-tech company: we process more than 4,5 million ad requests per second , replying under 100ms (for reference, the Google search engine handles ~76,000 QPS). Every day we generate several TBs of data that need to be processed, analyzed and aggregated, so our real-time components get smarter every day. If you are ready to boost your...

Overview As a FullStack GO Developer, you will contribute across the software lifecycle, helping define architecture and migrate legacy software to new versions. You’ll work in a fully agile, cross-functional environment with QA, design, and product teams to raise quality and deliver high‑quality products. You will drive architectural ideas and...

Overview As a FullStack GO Developer, you will contribute across the software lifecycle, helping define architecture and migrate legacy software to new versions. You’ll work in a fully agile, cross-functional environment with QA, design, and product teams to raise quality and deliver high‑quality products. You will drive architectural ideas and...

Your mission We are looking for a Senior Developer to work on our multi-tenant B2B SaaS platform, used by HR teams and by employees across the organisations we work with. The role combines hands-on development with architectural decisions and code review, and carries direct ownership of the areas you work on. This Is What You Will Do With Us Develop across...

Barcelona - CataluñaBookings Group – Development /Full-time Contrato Indefinido /Hybrid Who we areLodgify is a fast-growing scale-up company leading the vacation rental industry. Backed by $30M in funding, our platform empowers property owners and managers worldwide to efficiently manage and grow their business through technology. Headquartered in sunny...

Barcelona - CataluñaBookings Group – Development /Full-time Contrato Indefinido /Hybrid Who we areLodgify is a fast-growing scale-up company leading the vacation rental industry. Backed by $30M in funding, our platform empowers property owners and managers worldwide to efficiently manage and grow their business through technology. Headquartered in sunny...

Barcelona - CataluñaBookings Group – Development /Full-time Contrato Indefinido /Hybrid Who we areLodgify is a fast-growing scale-up company leading the vacation rental industry. Backed by $30M in funding, our platform empowers property owners and managers worldwide to efficiently manage and grow their business through technology. Headquartered in sunny...

Are you our next Backend Developer?Role: Backend Developer (Mid / Senior)Location: Hybrid (Remote / Turin, Italy)The Mission: A Digital World Without BarriersAt Accessiway, we aren’t just a SaaS company; we are a scale-up growing at supersonic speed with one ambitious goal: to make technology accessible to everyone, no ifs or buts. We believe that...

Apply for Senior Front-end Engineer - Backoffice at Impress in Barcelona, CT, ES. This Full time on site position offers great opportunities for career growth.Join Impress – Europe’s Leading Health-Tech Innovator! We believe everyone deserves a smile they’ll love . As the largest Ortho clinic chain in Europe, we combine cutting-edge tech with expert...

¿Buscas un proyecto donde crecer de verdad y generar impacto con lo que haces?Estamos buscando a un/a Odoo Senior Developer para formar parte de nuestro equipo de Producto Interno.¿Quiénes somos? 😊Fundada en 2018, Qida es una start-up privada y social de alto crecimiento con una misión clara: hacer sostenible el sistema sociosanitario. Lo hacemos...

BioCatch, the market leader in behavioral biometrics, seeks a Senior Backend Developer in Barcelona to join a high-scale team. You will design and implement core services and APIs for real-time traffic with strict SLA. Work on data collection, aggregation, and research for advanced fraud detection in a hybrid Barcelona setting. The role emphasizes scalable...

About CaraveloAt Caravelo, we are revolutionizing the travel industry with subscription-based solutions that help airlines and travel companies unlock new revenue streams while enhancing customer loyalty. Our SaaS platform enables seamless subscription management, dynamic pricing, and automation, helping airlines transition from traditional ticket sales to...

We are looking for a Senior Full Stack Developer with strong AI expertise to build and deploy AI solutions in production. Backend and AI integration end to end, in an Agile Scrum team alongside data scientists, AI engineers and frontend developers. Deliverable: working software. Main Responsibilities & Key Activities: Develop scalable backend systems and...