react English-speaking jobs in Valladolid

Part-time English Teacher needed for kids and teens in Sabadell. Responsibilities include planning and delivering engaging lessons, assessing student progress, and creating a positive classroom environment. Must have a CELTA or equivalent qualification and experience in lesson planning and classroom management.

Maintains high-performance PostgreSQL databases, ensuring reliability, availability, and scalability. Designs, implements, and optimizes database solutions, collaborating with development teams and managing security controls.

Customer Service Representative to provide support for health and travel insurance clients. Handles inquiries, concerns, and issues via phone and email. Requires strong communication, problem-solving, and customer service skills. Bachelor's degree and prior customer service experience preferred.

Senior React Developer will develop, maintain, and optimize React-based front-end applications. Responsibilities include building reusable UI components, working with JavaScript and TypeScript, implementing testing strategies, and collaborating with cross-functional teams.

Leads specific Supply Chain projects, including system deployments and data structure implementations. Develops and implements commercial and factory-based projects to meet business needs. Partners with the Head of Supply Chain to define and drive the Supply Chain Transformation strategy. Establishes, leads, and manages the Supply Chain PMO, setting governance framework and reporting standards. Drives the planning, execution, and delivery of strategic supply chain initiatives in Europe.

IT Support Field Engineer L2 provides onsite and remote Level 2 support to end users, including troubleshooting hardware, software, and connectivity issues. Requires CompTIA A+ Certification and 2-4 years of experience. Must have strong customer service skills and proficiency in English and Spanish.

The Laboratory Lead manages a veterinary diagnostic reference laboratory, overseeing team management, technical support, quality control, and budget. Responsibilities include meeting operational key performance indicators, ensuring associate training and development, and leading laboratory work activities.

Sales Development & Specification Specialist to expand distribution network and specify products within architecture and design firms.

Data & AI Engineer to design and deploy architectures based on LLMs, intelligent agent orchestration, and data pipelines for industrial and enterprise solutions. Responsibilities include building data pipelines, implementing RAG systems, integrating intelligent agents, and fine-tuning LLMs. Requires experience with Generative AI, agent orchestration frameworks, vector databases, and Python for ML/AI.

FLUZO seeks a Sales Representative to develop and execute sales strategies for the UK market. The ideal candidate will have at least two years of B2B sales experience, preferably in advertising, and a network of UK advertisers and media agencies. Fluency in English and Spanish is required.

Leads the operations of a glass microsphere manufacturing plant, ensuring safety, environmental compliance, and high-quality product delivery. Manages daily operations, production, and personnel, while developing and implementing strategic plans. Requires a university degree in engineering, 5+ years of relevant experience, and fluency in English.

Technical Project Manager to drive complex global integrations in Fintech and Payments. Manage the technical integration lifecycle, from scope analysis to launch, and troubleshoot integration challenges. Fluency in English is required, French or other European/African languages are a plus. 3+ years of experience in a Technical Consultant, Solutions Architect, or Integration Engineer role is required. Strong proficiency with RESTful APIs, Webhooks, and JSON/XML data structures is essential.

DevOps IaaS professional to manage global backup and restore infrastructures for servers, databases, and NAS services. Ensure high availability of a critical worldwide service and contribute to automation initiatives. Strong automation and development skills (Ansible, APIs, Python, Bash) and experience with monitoring tools (Grafana, ELK) are required.

Manage the digital client journey for a luxury watch and jewelry brand, providing personalized experiences across various channels. Build relationships, design sales campaigns, and analyze data to ensure client satisfaction and retention.

General Health Psychologist specializing in pediatrics and early intervention needed for a team supporting children aged 3-12. Responsibilities include assessment, diagnosis, treatment, and family therapy. Must be fluent in English.

Bionet's STEM Excellence Internship Program offers a 6-month paid opportunity for outstanding students and recent graduates in STEM fields.

Provides end user support, monitors tickets, and installs/configures devices. Manages printers, performs equipment moves, and analyzes technology needs. Participates in projects and supports mobile devices and warehouse management systems.

Cloud Solution Architect needed to design and deliver end-to-end cloud architectures using Microsoft Fabric and Azure services. Experience with Azure SQL, SQL Server, PostgreSQL, and MySQL required.

Project Documentation Intern to support the Greenfield & Operation Department. Assist with organizing, classifying, and archiving project documentation. Maintain document registers and filing systems. Coordinate with project engineers and team members. Support documentation packages for audits and reviews. Bachelor's degree in Engineering, Business Administration, or equivalent experience required. Chinese mother-tongue, business fluency in English, and fluency in Spanish preferred.

Leads the launch and operation of a new affiliate in Spain, defining strategy, sales, and operations. Requires 8-10 years of experience in commercial, sales, or operations roles, ideally in aesthetics, pharma, medical devices, or beauty. Must be based in Spain and fluent in English and Spanish.