react English-speaking jobs in Castile and León

Commercial Operations & Business Partner supports the Commercial Department by analyzing inventory, margins, and sales data. Develops sales proposals, manages the order cycle, and collaborates with the commercial team on sales strategies. Requires 5+ years of experience in commercial operations, S&OP, or trade/retail with a focus on profitability and efficiency.

Document Control Technician will support quality system management, facilitating document flow and audits. Responsibilities include document audits, training support, and non-conformity closure.

Design, develop, and deliver scalable and secure enterprise backend applications using Java 17+, Spring Boot, and RESTful APIs. Build, integrate, and maintain microservices, working with SQL and NoSQL databases. Contribute to CI/CD pipelines and ensure code quality through testing and reviews.

Art Director needed to lead visual direction and creative quality of projects. Translate briefs into visual languages, oversee production, and design compelling pitch decks. Must have a strong portfolio and experience as an Art Director.

AI Engineer will develop and deploy scalable AI solutions, partnering with clients across industries to design, build, and implement innovative solutions.

Supports Marketing & Trade team in project development and brand management. Assists with daily operations, including performance monitoring, sell-in/sell-out analysis, and digital plan management. Collaborates with agencies and internal teams on marketing materials and customer support.

IDECO Mosquiteras S.L. seeks an Export Sales Manager to develop and expand sales in France and Western Europe. The role involves identifying new business opportunities, managing key accounts, and analyzing markets. Fluency in English, French, and German is required.

Deploy cutting-edge ML/LLM models to Fortune Global 500 clients. Employ automation tools to enhance ML/LLM processes. Establish monitoring systems to track model performance and address issues. Collaborate with Product, DevOps, and research teams to optimize model performance. Manage cloud infrastructure for Large Language Model workloads.

The Communication & Member Benefits Officer will manage and deliver communication across multiple channels for Club members and stakeholders. Responsibilities include content creation, offer coordination, website maintenance, and relationship management with external suppliers.

Senior Technical Safety Engineer will prepare and review deliverables related to Technical Safety/Environmental, participate in workshops, ensure compliance with legal requirements, and perform radiation and dispersion modeling. Requires a Bachelor of Engineering in Chemical discipline or equivalent, English C1 proficiency, and 8-12 years of experience as a Technical safety specialist in EPC companies or Engineering Companies.

Provides administrative support to the Chief Sales Officer, Head of Sales, and Sales Project Managers. Manages travel arrangements, meeting minutes, and CRM data. Responsible for local adaptations and translations of sales materials.

The Communications Director will shape and lead Bioiberica's corporate communications strategy, overseeing both internal and external communications across three Business Units: Human Health, Animal Health, and Plant Health.

Drive revenue growth by managing the entire sales process for an AI-based expense and procurement management platform. Responsibilities include lead generation, pipeline management, sales presentations, and market monitoring. Fluency in German is required.

Senior Software Development Engineer to design, build, and maintain Java-based microservices in cloud environments. Collaborate with teams in an Agile setup.

Senior Application Engineer to design, develop, and maintain scalable cloud-based applications. Experience with Spring Boot, Java, Azure services, and REST API development required. Strong communication and collaboration skills essential.

Clinical Research Coordinator to support a clinical research site in Toledo. Part-time (20-24 hours/week) until September 30, 2026. Responsibilities include study documentation, patient support, data management, and communication. Bachelor's degree in life sciences or equivalent experience required.

Launch Specialist will manage and maintain launch plans for new products, coordinating cross-functional teams to ensure successful launches.

Design Engineer to execute the full design process from ideation to production. Responsibilities include drawing, updating, and maintaining designs, creating design and installation documentation, and ensuring designs meet manufacturing, technical, and customer requirements.

Intern will assist with cosmetic registration, managing documentation, and ensuring compliance with European legislation and market regulations.

Lead renn's content strategy and act as the company spokesperson across social and public platforms. Define brand messaging, manage social media content, and ensure high-quality written content.