frontend developer English-speaking jobs in León

Technical Lead for electrical power distribution projects in data centers. Leads technical strategy and execution, ensuring resilient and scalable solutions. Requires a Master's degree in Electrical Engineering, 5+ years of project leadership experience, and 5+ years in electrical power distribution. German (B2) and English (B2/C1) fluency required.

Purchasing Specialist will coordinate orders with suppliers, negotiate terms, track purchase orders, and collaborate with various departments. Requires a degree in a related field, 2+ years of experience in procurement, strong SAP MM knowledge, and fluency in English.

International Order Management & Export Operations Coordinator will manage and process complex international orders within an ERP system, ensuring accuracy across product references, quantities, pricing, and shipping configurations.

Contact Center Agent needed to support clients and suppliers, providing information, managing bookings, and ensuring excellent customer service. Must be proficient in English and Italian and possess strong communication and problem-solving skills.

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.

The Project Material Manager will manage industrial coordination, review purchase requirements, and enter project material needs into SAP. This role will also arrange for timely release of requisitions, expedite deliveries, and manage shipments to installation sites.

Junior Scientist/Lab Technician will prepare analytical batches, evaluate results, and support the Study Director in bioanalytical studies. Requires a PhD, MSc, or BSc in biology or related field and 1+ year of experience in bioanalytical laboratories with ELISA, MSD, or similar techniques.

PQE Group seeks a GMP Analytical Lab Consultant to manage qualification, calibration, maintenance, and troubleshooting of chemical laboratory instrumentation. Responsibilities include performing IQ, OQ, and PQ of various instruments, authoring protocols, and ensuring GMP compliance. Requires a scientific degree, GMP experience, and strong knowledge of analytical instrumentation qualification processes. Spanish native, English B2 minimum.

Senior Backend Developer for a contract role (8-12 months) with a day rate of €350-€380. Design, develop, and maintain backend services using Go, contributing to service architecture and scalability.

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.

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.

Plan and manage events, liaise with clients, organize logistics, and budget for successful event execution. Coordinate with teams, vendors, and clients to deliver flawless events while maintaining high service standards.

Leads Project Team, communicates with clients and medical stakeholders as a scientific expert. Manages non-promotional medical events and fosters scientific collaboration with clients, HCPs, and medical societies. Requires advanced degree (PhD, MD, or PharmD) and strong communication, project management, and scientific expertise.

Exclusive commercialization of a high-end new development project from pre-sales to deal closure. Expert advisory to HNWI and international investors throughout the decision-making process. Management of qualified leads, commercial presentations, and negotiation of commercial terms. Minimum 3-5 years' experience in exclusive new development sales, preferably off-plan projects. Proven track record in prime/luxury residential real estate. Strong knowledge of the Barcelona real estate market. Full professional proficiency in Spanish and English. Strong commercial mindset with proven ability to close long-cycle sales processes. Excellent communication skills and experience dealing with high-profile international clients. Ability to work independently with strong organizational skills. Professional image and high attention to detail aligned with luxury standards.

The Chief Operating Officer will lead the scaling and professionalization of Almond Real Estate's operations, ensuring operational excellence in a fast-growing environment. The COO will review, improve, and automate core processes to build strong foundations for sustainable growth.

The Data Technical Lead designs, implements, and ensures quality assurance of data solutions within a specific business domain. This role bridges enterprise data architecture and operational delivery, ensuring data initiatives are well-designed, implemented, scalable, and aligned with business needs. Responsibilities include technical design, implementation, and quality control of data solutions, including the evolution of the Data Lake.

Cloud Platform Engineer will design, implement, and optimize Azure infrastructure, CI/CD pipelines, and deployment processes for enterprise applications.

Internship in Customer Service & Commercial Support (B2B) for a 6-month period with potential for permanent employment. Provide B2B customer support, manage orders, and assist with quotations and documentation.

Customer Service Specialist fluent in French and English required for a medium-sized industrial company. Responsibilities include order management, shipment follow-up, handling customer incidents, and daily customer contact.

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.