react English-speaking jobs in Valladolid

Build and maintain production AI agent flows using Python and LangGraph. Design and implement automation flows and recommendation engines. Own the integration with sandboxed execution environments for tool execution.

Security Engineer (Vulnerability Management) with 1-4 years of experience needed for an international project. Responsibilities include monitoring security systems, implementing cybersecurity measures, and collaborating with international teams. Must have a university degree in a related field, advanced English skills, and the ability to work in a multicultural environment.

Crypto Arbitrage Trader will identify and execute arbitrage opportunities across exchanges, futures markets, and funding rates. Responsibilities include managing capital allocation, optimizing execution speed, and implementing risk controls. Requires proven experience executing crypto arbitrage strategies, strong quantitative skills, and proficiency in English.

Provides administrative, operational, and organizational support to the General Manager and management team. Prepares documentation, manages schedules, and tracks tasks. Requires experience in administrative roles, proficiency with office tools, and fluency in English and Spanish.

Senior Full Stack Developer needed for enterprise application development using Microsoft technologies. Responsibilities include design, development, and maintenance of applications, database optimization, and collaboration with multidisciplinary teams.

Forward Deploy Software Engineer to join Retail Tech team. Focus on platform deployment, configuration, and operation for real customers. Responsibilities include account setup, incident resolution, and internal tooling development. Requires 2-4 years of experience in software deployment, backend, or full-stack roles with proficiency in Java, Go, TypeScript, or Python. Strong understanding of networking fundamentals, SQL databases, and version control systems.

Supports Greenfield Development team in all Renewable Energy projects. Provides support in internal approvals, procurement, and development of PV, Wind, and BESS projects. Reviews and tracks permitting documents, supervises permitting processes, and collaborates with internal departments. Requires a Master's degree in Engineering or Law and at least 2 years of experience in permitting processes for renewable assets.

Develop SAP standard and custom objects in the MDG environment. ABAP (OO) development in the SAP MDG framework. Develop SAP Fiori/UI5 applications and OData services.

Product Development Engineer needed for automotive engineering team. Requires travel (80%) to client plant in Poland. Responsibilities include design validation, PPAP/PPF submissions, testing, and supporting production readiness. Must have 3+ years experience in automotive sector, knowledge of coretools, and fluency in English.

Leads the Testing Centre of Excellence, overseeing test automation, AI, metrics, reporting, and governance. Manages capacity, financials, and stakeholder relationships. Requires 12-18+ years of testing experience, including TCoE leadership, automation frameworks, and data-driven reporting.

Solution Specialist will drive the sales cycle, nurture client relationships, and showcase expertise in cloud technologies. Responsibilities include securing new customer wins, providing technical product overviews, and conducting trainings. Must be native or proficient in Dutch plus fluent in English, have a Bachelor's degree, and 3-6+ years of technology related sales or business development experience. Minimum Fundamentals certification is required.

Data Architect & MarTech Expert needed for a full-time, long-term project. Manage data flows between Relay42 and Salesforce Marketing Cloud, ensuring seamless integration and audience segmentation. Expertise in Relay42, Salesforce Marketing Cloud, SQL, and Google Cloud Platform required.

Provide technical assistance for clean energy and climate-related infrastructure projects in developing countries. Experience in procurement and contract management for infrastructure projects, including FIDIC contract conditions, is required.

Leads a team to support technical management of Alpiq Thermal's existing assets, ensuring safe and performing operations. Oversees engineering, project management, and plant upgrades. Provides technical expertise to support decision-making and the strategic growth ambition of the Business Unit.

Freelance Sales Specialist to lead market expansion into the Spanish accounting sector. Focus on identifying distribution partners and closing high-value accounts. Requires an established network of C-level contacts in the Asesoría, Gestoría, and Professional Services landscape. Proven track record of selling B2B SaaS, Fintech, or AI solutions in Spain is essential.

Supports Relationship Managers in fulfilling member requests, focusing on booking execution and documentation. Assists with researching luxury objects and experiences. Requires strong organizational skills, luxury industry knowledge, and fluency in Russian and English.

The Researcher will conduct hands-on research and development focused on battery cell preparation, testing, and recycling. Responsibilities include Li-ion coin cell preparation, Li recovery, electrochemical testing, materials characterization, and data analysis.

Expert in ServiceNow ITSM and AI solutions needed to optimize support processes, implement AI-powered incident/request management, and drive strategic service structure principles.

Public Tender and Customer Service Specialist needed for multilingual team in Barcelona. Responsibilities include tender quote creation, order management, and resolving customer issues throughout the quote to cash process. Requires native-level German, 2+ years of customer service experience, and strong communication and problem-solving skills.

Clinical Data Manager ensures data accuracy, integrity, and regulatory compliance across clinical projects. Responsibilities include monitoring data quality, creating reports, programming eCRFs, and collaborating with cross-functional teams. Requires a Bachelor's or Master's degree in a related field and at least 2 years of experience in clinical data management.