backend developer English-speaking jobs in Castile-La Mancha

Sales and Marketing Intern to support email marketing, social media, CRM implementation, and website development.

ADP is seeking a German-speaking Digital Sales Associate to introduce clients to ADP's solutions. Responsibilities include building relationships, uncovering client needs, and recommending products and services. Must have demonstrated sales aptitude, excellent closing skills, and fluency in German and English.

Quality Control Technician to design, execute, and supervise quality control studies for biological products, specializing in chromatography and HPLC techniques. Requires a Bachelor's or Master's degree in a relevant field and 3+ years of experience with HPLC and chromatography. Proven experience in Quality Control within a pharmaceutical company and understanding of GMP regulations are essential.

Cybersecurity Analyst will conduct security audits, risk assessments, penetration testing, and conformity evaluations for SW, HW, AI systems, and regulated technologies. Experience in security assessment, penetration testing, and vulnerability analysis of SW, embedded, or industrial systems is required.

Quality Assurance Manager & Qualified Person needed for a global biotech scale-up. Supervise external manufacturing, lead batch release, and ensure regulatory compliance. Bachelor's in Pharmacy required, QP experience and expertise in biological products essential.

Lead the development and industrialization of a proprietary, next-generation printing hardware platform. Define the technology roadmap, oversee production-ready systems, and manage a multidisciplinary engineering team.

Footwear Innovation Developer will coordinate product development from concept to production sample, collaborating with internal teams. Responsibilities include prototyping, liaising with designers and factories, and ensuring production quality and timeliness.

Embedded Software Engineer to develop C/C++ software for high-performance embedded environments. Implement concurrent programming, process optimization, and resource control. Integrate, debug, and test systems based on microcontrollers.

Provides IT support for desktop computers, peripherals, software, and mobile devices. Troubleshoots hardware and software issues, performs IMAC services, and manages printer and audio-visual equipment. Supports Mac devices and adheres to Service Level Agreements. Assists with network and server support as needed. Documents incidents and resolutions.

Software Development Intern will participate in the digitalization and automation of business processes across departments. Responsibilities include designing, developing, and testing technological solutions, documenting processes, and presenting results.

Develops, maintains, and optimizes quotation tools for the solar tracking business. Collaborates with regional pre-sales teams to gather requirements and implement tool updates. Provides training and support to ensure tool proficiency across all departments. Analyzes tool usage data to identify areas for improvement and provide recommendations for process optimization.

Global Enterprise Partners seeks a Spanish and English speaking SAP Analytics Cloud Planning Consultant with 5+ years of experience. Must have SAP BPC experience and a minimum of 3 completed SAC implementations.

Build and execute quote proposals for parts and billable services. Partner with commercial and fulfillment teams to understand availability, lead times, costs, and prices. Communicate with end-users and work to increase market capture and Key Account performance.

The Events Director plans, coordinates, and delivers WTTC's global events program, including the annual Global Summit. This role oversees all event operations, logistics, delegate management, and on-site delivery, ensuring events meet the highest professional standards.

Shiji seeks a Business Development Representative with native German and sales experience to support the DACH market. Responsibilities include scheduling demos, qualifying leads, and managing customer relationships.

The Governance Manager will create infrastructure to liaise with the European Union and country-level project officers supporting a chemical plant. This role requires translating project metrics, business development progress, and financial analytics into reports for investors.

Leads and coordinates operational delivery of medical schemes, ensuring compliance with regulations and driving operational excellence. Manages technical teams, oversees conformity assessment activities, and promotes continuous improvement of processes and systems.

The Field Service Engineer provides timely and competent customer support, including installations, repairs, and troubleshooting. Collaborates with the Service Team to ensure professional after-sales service and supports Sales Representatives. The role requires a Bachelor's Engineer Degree, fluency in English and Spanish, and the ability to travel up to 70% within Spain.

Leads the product strategy and vision for personalization across Dow Jones' B2C and B2B platforms. Develops and executes operational plans, drives cross-functional collaboration, and analyzes KPIs to deliver personalized user experiences. Requires 12+ years of product management experience, with a focus on personalization, recommendation engines, or data products.

AI Engineer will design, build, and operate AI models for a health tech platform that transforms medical laboratory data into actionable clinical insights. Responsibilities include building model pipelines, integrating LLMs, developing APIs, and ensuring system reliability. Requires a computer science background, software engineering experience, and expertise in machine learning systems.