frontend developer English-speaking jobs in Castile-La Mancha

Laboratory Engineer to manage, optimize, and support laboratory activities related to physico-chemical and mechanical testing of composite materials. Ensures accurate testing, compliance with specifications, and technical support to production, customers, and other company sites.

EBRO SUV seeks a Key Account Manager to drive B2B growth by developing and managing relationships with corporate clients, institutions, and large fleets. This role requires a strong commercial mindset, negotiation skills, and the ability to manage complex sales cycles.

Drug Safety Senior Officer needed for global pharmacovigilance activities. Responsibilities include literature assessments, ICSR management, reporting to European authorities, and supporting Qualified Persons for Pharmacovigilance. Requires +4 years experience, fluency in English & Spanish, and a Life Science or Pharmacovigilance degree.

Tier 2 Workshop Technician performs advanced diagnostics, repairs, and refurbishment of laboratory equipment. Provides remote technical support to global Field Service Engineers and distributors. Troubleshoots complex customer issues and assists with installations and software/network troubleshooting.

Web Marketing & Merchandising Intern will support the execution of global marketing strategy, including CMS management, content production, product merchandising, and campaign coordination.

HR Operations Specialist to manage end-to-end employee lifecycle processes across multiple European markets. Support payroll activities, ensure compliance with local regulations, and optimize HR systems.

Lead the strategy and roadmap for Enso's end-to-end tech platform, including design, data analysis, and stakeholder coordination. Requires 5+ years in digital product, full-stack design skills (Figma), and advanced AI usage. Fluent English, good Spanish, and Barcelona-based or willing to relocate.

Business Analyst to champion operational excellence within a global client reporting team. Collaborate with agencies, ensure quality standards, and drive continuous process improvement. Must have experience in process mapping, documentation, and quality assurance. Fluency in English and Spanish is required.

Define and execute the visual merchandising strategy for Lenskart's European expansion. Lead visual merchandising for store openings, including layouts, fixtures, and product displays. Build a visual brand experience across online, offline, and experiential retail.

The Regional Talent Partner (Director) EMEA & Latam develops and executes talent and organizational development strategies aligned with regional business priorities and global frameworks. This role collaborates with business leaders, HR Business Partners, and Centers of Excellence to build leadership capability, enhance organizational effectiveness, and support workforce planning.

Workplace Manager (9-month FTC) to support onboarding, reception, office management, and company culture initiatives in a San Sebastian office. Requires proven experience in a fast-growing company, strong communication skills, and proficiency in Microsoft Office.

Senior Energy Storage Engineer provides technical analysis, documentation, and support for utility-scale Battery Energy Storage Systems (BESS) across the asset lifecycle. Supports project development, engineering execution, commissioning, and fleet operations. Contributes to design guidance, technical documentation, and engineering review materials. Performs technical analyses and provides engineering support for BESS fleet initiatives. Collaborates with internal and external stakeholders on BESS matters.

The Senior Client Experience & Operations Advisor oversees daily operations, ensuring seamless service execution and client satisfaction. This role involves managing bookings, coordinating with partners and chauffeurs, resolving client issues, and maintaining operational records. Strong organizational, communication, and problem-solving skills are essential. Fluent English and Spanish are required.

Conceptualize, produce, and edit audiovisual content for digital campaigns and social media. Create engaging organic content for platforms like Instagram. Collaborate with the Head of Social Media to develop innovative content concepts. Ensure all content aligns with SHA's visual identity and brand positioning.

The General Manager will oversee all aspects of operations in Spain, including production, quality management, sales, HR, finance, and IT. This role will lead a transformation process across all areas, ensuring efficiency, continuous improvement, and compliance with regulations.

QA Technician to ensure compliance with GMP, regulatory, and internal standards. Responsibilities include CAPA, CC, and complaint management, PQR preparation, supplier homologation, and audit support. Requires a degree in Pharmacy, Chemistry, or Sciences, 3+ years' experience, and knowledge of EU & US GMPs.

Lead the development and growth of a new Bachelor's Degree in Entrepreneurship based on the Team Academy methodology. Coordinate faculty, guide student projects, and build connections with the startup ecosystem.

Manages a delivery station, overseeing the delivery of Amazon orders to customers. Leads a team of Process Assistants and Delivery Service Providers, ensuring a safe workplace and addressing employee needs. Implements process improvements and tracks operational metrics.

Senior Backend Engineer to design, build, and maintain scalable server-side systems for a major global airline. Focus on building microservices, APIs, and hosting/serving AI/ML models in production. Requires 8+ years of backend development experience, Python expertise, and strong AWS knowledge.

Kensington Finest Properties International seeks a qualified accountant to manage back-office operations and financial administration. Responsibilities include managing office workflows, client correspondence, bookkeeping, invoicing, and preparing financial reports.