Empleos de senior javascript engineer en Sevilla

Cello is building an AI-powered revenue-growth platform. You will own scalable AWS infrastructure, design robust CI/CD pipelines, and influence architectural directions. You will work on multi-tenant systems handling large user bases and high availability, leveraging modern tooling and data pipelines. As part of a remote-first team, you’ll collaborate with...

is a global provider of proxy and DaaS solutions. We're seeking a hands-on Senior QA Engineer to work across our web/SaaS product and our data/AI platform, blending manual testing with automation and quality engineering practices. You will test APIs, microservices, data pipelines, and live scraping workflows, develop test cases, write automated tests in...

Yuno seeks a Senior Corporate IT Engineer to own the internal technology backbone for a fully remote, global team. You’ll manage devices and endpoints, IAM, SaaS administration, and security controls across 190+ countries, designing scalable systems and automation. This is not a helpdesk role; you’ll drive the IT roadmap and build AI-driven automation...

The Whiteam Consulting busca un/a Senior AI Engineer con experiencia en GCP, Vertex AI y soluciones AI para un proyecto tecnológico de alto impacto. Perfil con diseño, desarrollo e implementación de soluciones AI/ML y arquitecturas Agentic AI, para construir plataformas de datos escalables y apps IA en GKE. Se requiere experiencia en Vertex AI, Gemini...

Toloka is seeking a Senior ML Engineer to design, train, and deploy AI agents powering core Toloka products. You will focus on end-to-end ML tasks—fine-tuning and RL—to build resilient agentic workflows in Python, owning models from research to production scaling and monitoring. You will work in a remote-friendly, globally distributed team, collaborating...

Lever, Inc. is seeking a Lead Engineer/ Architect ( .NET ) in Spain to spearhead software architecture for an enterprise IoT asset tracking platform. You will balance hands-on coding with team leadership, shaping concurrent distributed systems using C# and .NET, and mentoring a global engineering team. Responsibilities include designing core platform...

RavenPack in Europe is seeking an experienced Machine Learning / NLP Engineer to lead a high-impact infrastructure project. You will design, evaluate, and deploy advanced ML models to complement our large-scale detection pipeline, collaborating with core engineering and data teams to create a hybrid architecture. This role focuses on low-latency inference,...

Elastic, the Search AI Company, enables everyone to find the answers they need in real time, using all their data, at scale - unleashing the potential of businesses and people. The Elastic Search AI Platform, used by more than 50% of the Fortune 500, brings together the precision of search and the intelligence of AI to enable everyone to accelerate the...

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Senior Software Engineer (Golang/TypeScript/React) - Independent Contractor based in Spain. This is a senior engineering opportunity focused on building and evolving a data-intensive platform used by major global organizations...

Zohorecruit is seeking an experienced software engineer who enjoys owning projects from concept to deployment. You will join a collaborative team where technical judgement and hands-on skills are highly valued, translating requirements into robust solutions. Responsibilities include designing and deploying Kubernetes-based infrastructure, writing...

Elastic is seeking a Senior Information Security Infrastructure Engineer to own the data pipeline for security telemetry. You will ingest, process, and secure telemetry across Elastic clusters, ensuring end-to-end data quality and reliability. The role focuses on production-grade Elasticsearch operations, Kubernetes-based deployment, and automation using...

Talan is seeking a Senior Software / Data Tester to support a data-driven transformation initiative. The role focuses on validating data pipelines, ensuring data quality, testing reporting solutions, and contributing to test automation within a modern data environment. You will work closely with data engineers, analysts, and business stakeholders to...

Grafana Labs in Spain is hiring a Senior Solutions Engineer for a remote role. You will partner with Sales to articulate Grafana's value, own technical engagements, and deliver demonstrations and evaluations to customers worldwide. You will translate customer requirements into Grafana solutions and collaborate with product, engineering, and marketing teams....

bunch is building the operating infrastructure for private markets. As a Full Stack Engineer with a frontend focus in our Platform team, you’ll shape frontend architecture, contribute to backend services, and help maintain our Design System. You will ship end-to-end features that empower thousands of users managing billions in assets. You’ll collaborate...

SEMrush is hiring for a Technical Pre/Post-Sales Engineer in Spain. You will leverage your 8+ years of expertise to serve as a strategic leader for the sales team, enhancing client relationships and driving technical excellence. This role requires a proven background in SaaS or DaaS environments and exceptional communication skills. You will be instrumental...

Quik Hire Staffing is seeking a Senior Full Stack Engineer to design, develop and maintain full-stack applications remotely. The role involves collaborating with cross-functional teams to deliver scalable solutions and high-quality software across the stack. You will build RESTful APIs, microservices, and data architectures, write clean, well-documented...

A dynamic talent company in Spain is seeking a Senior Agile QA Engineer to join a high-performing product squad. The candidate will lead testing strategies under a hands-on role, emphasizing automation and AI-enhanced practices. Responsibilities include defining test scopes and collaborating closely with development teams. An ideal candidate has over 8 years...

Albertine is seeking a seasoned full stack engineer to ship features across our TypeScript platform. You’ll shape API contracts, implement service and data work, and build the React UI members and agents actually use. Both halves must be solid in data choices and UX that feels finished. You’ll work across memberships, bookings, and billing with a focus...

Join FrontWell Solutions, an industry leader in Laboratory Information Management Systems and Manufacturing IT Solutions. As a premier consulting firm, we specialize in advanced technological solutions aimed at enhancing operational excellence in the life sciences sector. Our commitment to innovation and excellence has established us as a trusted partner in...

Location : Remote (Work from Anywhere) Role Overview We 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,...