frontend developer English-speaking jobs in León

Lead a research group and drive high-impact R&D projects focused on advanced materials for clean air, water treatment, circularity, and environmental decarbonization. Design, plan, and lead research projects, supervise researchers, and generate scientific outcomes. Lead the preparation of competitive proposals under European programs and manage awarded projects, ensuring timely delivery of milestones and deliverables.

Insurance Intern to support the Finance Department at China Three Gorges Europe. Assist with administrative tasks, policy renewals, documentation, and reporting. Bachelor's degree in a related field required. Chinese native speaker, fluent English, and Spanish preferred.

Crypto Treasury Manager oversees and analyzes cryptocurrency financial activities, optimizing treasury operations. Responsibilities include managing liquidity, executing trades, monitoring market trends, devising treasury strategies, and ensuring regulatory compliance.

The Asset Health Data Specialist will monitor and assess the health of offshore wind assets using data analytics, engineering principles, and technology. They will develop data pipelines, implement data models, and apply predictive maintenance techniques to optimize maintenance strategies.

Property Specialist to manage a portfolio of premium properties across Spain. Responsibilities include financial management, owner relations, team leadership, pricing and occupancy strategy, operational oversight, and performance tracking. Requires 1-3 years of experience in property management, asset management, or real estate operations, strong financial acumen, and fluency in English and Spanish.

IE Investment Club seeks a Yield Farmer to design, execute, and manage yield farming strategies across DeFi protocols. This role involves capital allocation, risk monitoring, and performance tracking. Requires proven DeFi experience, understanding of protocols and incentives, and analytical skills.

Insurance Intern to support the Finance Department at China Three Gorges Europe. Assist with administrative tasks, policy renewals, documentation, and reporting. Bachelor's degree required, fluency in Chinese and English.

Senior Python Developer needed for a cybersecurity startup in Barcelona. Build and scale a new product line focused on real-time monitoring, telemetry, and remote execution. Expertise in asynchronous programming, RESTful APIs, PostgreSQL, Docker/Kubernetes, and event-driven architectures required.

Provides personalized customer service and builds client relationships in a luxury boutique setting. Supports daily store operations and contributes to achieving sales goals.

Leads the onboarding and implementation of Nuitée's platform for new and existing clients. Manages the end-to-end process from requirements gathering to integration, testing, and go-live. Acts as the primary point of contact for client implementation teams. Translates client needs into scalable solutions using Nuitée's APIs and platform capabilities. Coordinates cross-functionally with product, engineering, and commercial teams. Ensures clients achieve maximum value from the platform and transition to long-term account management.

Freelance Spanish-speaking PR consultant needed for short-term project focused on increasing Spanish corporate and B2B media coverage.

Experienced SAP Basis Expert needed to manage and optimize SAP landscapes across multiple environments. Responsibilities include system administration, performance tuning, upgrades, and integration with cloud platforms. Requires 7+ years of SAP Basis experience, strong knowledge of SAP NetWeaver, S/4HANA, and SAP HANA Database, and experience with SAP upgrades, kernel patches, and support packs.

Power Platform Expert to drive the vision, roadmap, and adoption of Power Apps, Power Automate, and Power Virtual Agents. Oversee design, development, and deployment of solutions, ensuring scalability and user-centricity. Promote citizen development and manage vendor relationships.

Key Account Manager to onboard, train, and build relationships with travel partners on the TBO.COM B2B platform. Develop and maintain existing business, win new opportunities, and achieve sales targets. Requires 5+ years of experience in the retail travel industry, strong sales and negotiation skills, and fluency in English and Spanish.

Experienced DevOps Manager to lead a global team, driving scalable, secure cloud solutions. Combines technical leadership with project management, ensuring successful delivery of complex cloud initiatives. Shapes cloud architecture, improves engineering velocity, and fosters a collaborative team environment.

Blue Collar Training Technician to design learning programs for operators, coordinate certifications, and support production training system implementation.

Support Quality Assurance for powertrain projects, ensuring quality and customer satisfaction targets are met. Define quality milestones, conduct evaluations, and enforce quality standards.

Azure Machine Learning Engineer needed to design, develop, and deploy AI models using Python, PySpark, and Azure Machine Learning. Experience with Databricks, MLflow, and MLOps practices is required. Collaborate with data scientists, engineers, and stakeholders on projects involving advanced analytics and generative AI.

Lead Specialist for German-speaking professionals to introduce products to existing business contacts, qualify leads, and collaborate with sales and marketing teams.

Cloud Solution Architect to design, implement, and optimize cloud-based solutions using Microsoft Fabric, Power BI, Azure SQL/SQL Server, and open-source databases.