frontend developer English-speaking jobs in León

The Laboratory Coordinator ensures the verification, control, and traceability of raw materials and products by coordinating analyses and guaranteeing compliance with quality standards.

Clinical Data Scientist/Data Manager will oversee data management and clinical surveillance activities, including CRF design, database management, data quality assurance, and analytical support. Requires a university degree and 4 years of experience in data management systems at a CRO or pharmaceutical company. Familiarity with CDM systems, GCDMP, ICH, CDISC standards, and data privacy regulations is essential.

Product development and quality technician needed for a company focused on innovative food and pharmaceutical products. Requires a bachelor's degree in a relevant field and 1-3 years of experience in quality assurance or regulatory affairs. Fluent English is required, French is a plus. Strong analytical and communication skills are essential. Responsibilities include maintaining documentation, providing customer support, managing technical documentation, and ensuring compliance with regulations.

Product Management Consultant will translate institutional requirements into executable work, coordinate development across agile teams, manage the product backlog, and ensure seamless delivery of a payment infrastructure platform.

Office Assistant needed for a fast-growing digital company. Manage administrative tasks, provide reception support, coordinate events, and assist with vehicle administration. Requires excellent communication, a valid driving license (B), and proficiency in Spanish and English.

Senior Talent Support Coordinator will build and manage relationships with candidates and hiring managers, ensuring a positive experience aligned with company values. Responsibilities include scheduling interviews, tracking candidate progress, and managing onboarding activities.

Senior Contract Management Analyst manages commercial contracts for renewable energy assets in Iberia and internationally. Responsibilities include contract lifecycle management, compliance oversight, revenue forecasting, and stakeholder coordination.

Tangent is seeking a passionate Customer Success Manager for a leading SaaS platform in Barcelona. You will build relationships with clients, understand their needs, and ensure they maximize their investment in the platform.

Stock Controller needed for a 6-month fixed term contract in central Madrid. Manages stock levels, deliveries, and cycle counts. Requires 2+ years experience in luxury fashion, strong organizational skills, and proficiency in stock management systems.

Software Development Engineer needed for contract role in Madrid, Spain. Diagnose and resolve defects, perform debugging, and create technical documentation. Experience with Java, cloud-native technologies (Docker, Kubernetes, microservices), and Agile Scrum is required.

Finance & Administration Manager to oversee accounting, treasury, administration, and HQ HR functions. Experience in international trade, VAT complexity, and multi-currency operations 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.

Senior Software Engineer needed for a fixed-term contract until June 2026. Develop, deploy, and maintain production-grade software systems across frontend and backend. Collaborate with software, DevOps, ML, and research teams.

The Quality Assurance & Regulatory Officer ensures ELEM Solutions comply with quality and regulatory requirements. Responsibilities include designing, developing, and documenting solutions, managing non-conformities, and ensuring product release compliance. The role also involves regulatory monitoring, document control, and training.

Senior Sales Manager to lead new business development for pharma & healthcare clients. Must have proven pharma/healthcare and agency experience. Strong understanding of healthcare communications and client dynamics required. Fluent English, Spanish a plus.

Bilingual Executive and Personal Assistant required for prominent sports figure in Madrid. Manage complex diary, travel arrangements, and household operations. Coordinate with global teams and act as a key point of contact. Proven experience as a Personal Assistant, ideally supporting an HNWI, is essential. Fluency in English and Spanish required, additional languages advantageous.

Sales & Listings Agent to join a growing team at Lucas Fox in Marbella. Focus on the Nordic market, requiring native-level proficiency in Swedish, Norwegian, Danish, Finnish, or Icelandic. Support clients throughout the sales process and build positive relationships.

Junior Business Development Manager to support expanding network of vendors, partners, and clients in the cybersecurity space. Assist in identifying business opportunities, preparing proposals, and supporting vendor and partner engagement.

IT Specialist to provide desktop support, troubleshooting, and user training for EU offices. Manage IT assets, monitor systems, and assist with IT projects. Requires 2+ years of IT experience, knowledge of desktop OS, networking, and strong problem-solving skills. Fluent in English and Spanish.

Lead and administer global compensation programs, including salary surveys, benchmarking, merit cycles, and bonus plans. Develop and implement compensation policies and procedures, ensuring compliance with legal regulations. Analyze compensation data, recommend enhancements, and consult with stakeholders on pay decisions.