frontend developer English-speaking jobs in León

Thing or Two seeks a Junior Business Development Manager to identify, negotiate, and close deals with web-based brands, mobile app developers, and suppliers. Responsibilities include managing the sales cycle, creating business opportunities, and exceeding KPIs. Must be fluent in English and hold a Bachelor's degree.

Machine Learning Engineer to optimize and evolve prediction and recommendation systems on Databricks. Develop and fine-tune demand forecasting and recommender models using LightGBM and Spark. Maintain ETL workflows, orchestrate batch scoring, and manage the model lifecycle with MLflow.

AirAdvisor seeks a Litigation Lawyer specializing in consumer flight claims to lead in-court collections. Responsibilities include filing court cases to collect compensation and/or reimbursement of Out-of-Pocket Expenses (OPE) incurred by passengers. The lawyer will also respond to airline legal defenses, maintain legal case files, and stay informed about developments in consumer protection law and aviation regulations.

Leads the Massimo Dutti Feel Loyalty Program strategy, defining benefits, communication, and analysis. Manages program implementation across online and offline channels, collaborating with departments to ensure a cohesive customer experience. Requires 7+ years managing loyalty programs, preferably in fashion, with strong analytical and communication skills.

Senior Database Administrator providing expert technical guidance and support for MS SQL Server customers in Spain.

The Rooms Division Manager supervises the front and back operations of the reception, maintenance, and housekeeping departments. Ensures guest satisfaction and a warm, welcoming environment. Manages Front Desk and Reservations operations, including room allocations, guest relations, and revenue strategies. Oversees the Front Desk team, including training, scheduling, and performance management. Performs back-office tasks such as reviewing reports, processing charges, and managing invoices. Supervises Housekeeping and Maintenance operations, ensuring quality standards and efficient service. Requires a hospitality management background, 3+ years of experience, proficiency in reservation software, and bilingual English/Spanish skills.

This role involves the installation, maintenance, and repair of marine air conditioning and refrigeration systems for the superyacht industry. Responsibilities include performing complex services, troubleshooting malfunctions, and managing part orders. Applicants should have a technical degree/diploma/certification and F gas (Gases Fluorados) certification.

AI Technical Business Analyst needed to bridge business and engineering teams for internal AI tooling. Analyze business processes, identify automation opportunities, and design solutions. Drive adoption and ensure compliance with AI standards. Requires 5+ years of business analysis experience, including 2+ years in AI, data, or automation. Hands-on experience with AI-assisted documentation and code-generation tools is essential.

Accounting Manager needed for industrial company in Alcobendas. Oversee daily accounting operations, financial reporting, and internal controls. Lead budgeting, forecasting, and financial analysis. Requires 5-7 years experience, team leadership, and fluency in English.

Provides day-to-day HSE support for high-voltage cable manufacturing, construction, and offshore installation projects. Conducts site inspections, audits, and safety walks to ensure compliance with HSE standards and legislation. Leads incident investigations and delivers HSE training.

Administrative Assistant Trainee to support operational and compliance tasks for a pharmaceutical client. Assist with project management, digital tools, and internal systems.

French-speaking Account Executives are needed to drive business growth in the Swiss market. This role involves full sales cycle ownership, from prospecting to closing, and building long-term customer relationships. Proven B2B sales experience, fluency in French and English, and Swiss market knowledge are required.

IT Support Engineer providing remote support to EMEA users, with a focus on the German market. Responsibilities include incident resolution, hardware/software support, user onboarding, and collaboration with global IT teams. Requires strong German language skills, experience with Windows OS, Microsoft 365, and IT service desk tools.

Paid Media Specialist will develop and optimize multi-channel campaigns (Programmatic, Social, Search) for US market projects. Requires 5+ years of hands-on experience, strong analytical skills, and proficiency in GA4, Looker Studio, and platforms like StackAdapt, Doceree, Meta, and Google Ads. Native/C2-level English required.

Senior Data Architect & Program Delivery Lead needed to bridge legacy enterprise data platforms (Informatica PowerCenter, Oracle) with modern AWS cloud architecture. Lead technical architecture discussions, drive program governance, and ensure delivery success in a large-scale, multi-team environment.

Develop and execute marketing strategies to enhance brand visibility for a space technology company. Manage campaigns across digital and traditional channels, including SEO/SEM, social media, and PR. Create engaging content and oversee the company's social media presence.

This role partners with hotel Directors of Finance across the EAME region, providing objective evaluations, process improvement solutions, and guidance on internal control standards and compliance regulations. The Internal Auditor will execute Management Operation Reviews (MORs), identify risk areas, and contribute to the annual audit plan.

Legal Trainee will assist with drafting, reviewing, and managing commercial contracts, handling legal inquiries, and collaborating on internal policies and compliance projects.

Nae seeks a Sr Consultant Data Centers to lead the development of a new Business Consulting practice focused on the Data Center industry. The role combines strategic vision, commercial exposure, and project delivery, with a mandate to build capabilities, support go-to-market activities, and ensure high-quality execution.

Seabery seeks a EMEA Sales & Marketing Coordinator to support indirect sales, coordinate marketing activities, and ensure operational excellence across the customer lifecycle. The role involves managing marketing campaigns, sales funnel development, stakeholder engagement, and reporting on sales performance.