react English-speaking jobs in Valladolid

Manage large-scale data center early works packages, including site establishment, enabling works, and earthmoving activities. Oversee day-to-day site activities, monitor progress, quality, and safety performance, and support the transition to main construction. Coordinate with client teams, design consultants, and contractors to manage interfaces, sequencing, and site access.

Experienced Chef de Partie / Independent cooks needed for professional kitchens in the Netherlands. Prepare hot and cold dishes, maintain food safety standards, and collaborate with kitchen staff. Minimum 2 years' experience or culinary diploma required. Communicative English (B1-B2) and EU citizenship or valid work permit needed.

Senior Full Stack Developer to build and scale a core fintech platform. Design, build, and maintain features across the full stack, including API integrations with banking systems. 5+ years of experience required, with expertise in Java/Kotlin, Spring Framework, React, MongoDB, Docker, and microservices.

The Project Implementation Manager leads the execution of capital projects in Spain, ensuring on-time, within-scope delivery and operational readiness.

Customer Support Manager needed for online broker specializing in US, European, and Asian stock markets. Responsibilities include handling customer inquiries, resolving issues, assisting with onboarding, and maintaining client records. Requires a bachelor's or master's degree in a related field, 2+ years of customer support experience in finance, and proficiency in Spanish and English.

Leads the Cybersecurity Operations Monitoring Team, ensuring continuous monitoring, incident detection and response, and adherence to procedures. Collaborates on the annual work plan, supports onboarding of new agencies, and implements tools and processes to enhance cybersecurity. Manages SOC analysts across all tiers and defines KPIs to ensure service effectiveness.

Honest Greens seeks a detail-oriented Purchasing Controller to analyze food costs, monitor supplier performance, and control costs. The role involves preparing reports, collaborating with internal departments, and providing insights to drive strategic purchasing decisions.

Software Contract Renewal Specialist drives software contract renewal revenue by managing customer accounts, analyzing data, and collaborating with sales teams. Requires a bachelor's degree, 5+ years of relevant experience, and proficiency in CRM systems.

Shape and optimize the product roadmap for a sports prediction gaming platform. Own product strategy across career progression, DFS-style gameplay, and social casino mechanics. Drive data-driven product development and collaborate with cross-functional teams.

Pricing & Trade Terms Lead for a 3-month contract in Iberia. Review, improve pricing structures, discounting, and trade terms to enhance profitability and create a scalable commercial model.

As a Business Development Representative, you will identify and qualify sales opportunities for a leading ESG hotel certification and SaaS platform. You will execute multi-channel campaigns, lead qualification, and CRM management to build a strong sales pipeline.

Cook responsible for preparing and cooking orders according to quality standards. Collaborates with kitchen and F&B departments to ensure smooth operations. Maintains a clean and organized work area and adheres to safety protocols. Requires a higher education qualification in a related field and 1 year of experience in a 5-star luxury environment. Fluent in English and Spanish is required.

Business Analyst to support FX business process analysis, translate needs into user stories, and assist with backlog refinement and functional testing.

DevOps Engineer to deploy, automate, and maintain databases on Kubernetes. Experience with Kubernetes operators, Helm charts, Ansible, and CI/CD pipelines required. 3+ years of experience in a DevOps, SRE, or Infrastructure Engineer role with production responsibilities.

Senior AI Engineer to design and implement scalable AI-powered backend services using Python and modern frameworks. Experience with RAG, LLMs, vector databases, and Azure cloud services required.

Summer Camp Counselors needed in Donostia / San Sebastián for July & August. Provide care, plan activities, and support children aged 6 months to 8 years in a welcoming international environment. Must be certified in Early Childhood Education, have experience with children 0-8, and possess English proficiency (B1 or higher).

Programmatic & Full-Funnel Media Manager to plan, activate, and optimize Amazon DSP campaigns across the full funnel. 3-5 years of experience in programmatic media or retail media required. Hands-on experience with Amazon DSP and full-funnel media strategies needed.

Territory Manager to lead sales of POS solutions and payment devices, build and manage a team of field sales representatives, and expand market presence.

Senior Platform Engineer will build, maintain, and operate platform components. Responsibilities include improving developer experience, working with Infrastructure as Code and GitOps workflows, and participating in the evolution of Kubernetes-based platforms. Experience with cloud infrastructure, containerized environments, Linux, networking, and distributed systems is required.

Design, analyze, and optimize rocket turbopumps, turbines, and secondary flow systems for propulsion systems. Perform CFD analyses, develop numerical methods, and investigate off-design performance. Correlate simulation and test data, produce technical documentation, and collaborate with mechanical and test engineering.