frontend developer English-speaking jobs in León

Senior Consultant to manage proposal preparation, writing, and review for Horizon Europe and other EU funding schemes. Requires 5+ years' experience in proposal preparation with a proven track record of success. Excellent technical background (Engineering or related field) and strong communication skills are essential.

Experienced Incident Handler needed for cybersecurity team specializing in MDR, Threat Intelligence, and Incident Response. Lead high-criticality security incident response, define investigation and recovery strategies, and coordinate with DFIR analysts and other teams. Minimum 1 year incident response experience and 3 years in cybersecurity required. Strong communication and leadership skills essential.

Experienced Project Manager needed to lead the delivery of utility-scale Solar PV and BESS projects (20MW+) in Spain. Responsibilities include managing EPC contractors, budgets, and schedules, ensuring compliance with regulations, and overseeing construction and commissioning.

PhD position in accelerated materials discovery for energy applications. Research focuses on complex oxide materials for solid-state batteries and SOFCs using combinatorial synthesis and high-throughput characterization.

The Stellantis Graduate Program (GPS) Manufacturing is a European program for high-potential graduates. It offers a structured development path with real technical responsibility, cross-country exposure, and leadership development. The program includes a 6-month internship, a 24-month international assignment, and a consolidation phase.

As a Sommelier at Zuma Madrid, you will provide exceptional wine and sake service, enhance guest experiences, and manage stock levels. You will collaborate with the front-of-house team and build relationships with guests.

Mechanical Engineer Trainee will assist in preparing technical specifications, coordinating with other disciplines, and ensuring contractual requirements are met.

The Coordinator of Research Group Officers will support the deployment and consolidation of the Research Group Officer (RGO) model across ICFO. This role ensures structured interactions between Research Groups and Operational Teams, contributing to process standardization and operational clarity.

System Design Engineer will design and develop RF test solutions for aerospace and defense customers. Responsibilities include architecting, designing, and developing solutions, collaborating with customers, and contributing throughout the project lifecycle. Requires a Bachelor's or Master's Degree in Electrical & Electronic Engineering and 5+ years of experience in a relevant field.

Assures compliance with GMP, regulatory, and internal standards. Develops and reviews SOPs, manages documentation, and supports CAPA, PQR, and Change Control activities. Provides support for audits, inspections, and customer/authority requests.

Product Designer to develop products across rugs, furniture, and textiles. 5+ years of experience required. Strong portfolio, proficiency in design tools, and knowledge of materials and manufacturing processes essential.

BPS Assistant for COSCO SHIPPING Lines (Spain) S.A. will verify new clients, perform system operator tasks, calculate KPIs, generate reports, and handle user incidents.

The Field Account On Trade will drive sales and develop strategic relationships with key customers in the assigned area. Responsibilities include implementing the Commercial plan, negotiating Point Sales, and identifying opportunities to maximize Bacardi's performance in the On Trade.

Revolut seeks an FX Forwards Product Sales Executive to build and close a sales pipeline for FX derivatives. The role involves prospecting, communicating value propositions, and exceeding sales targets. Fluency in Dutch and English, experience selling FX forward products, and demonstrable commercial experience are required.

Senior Electronic and Firmware Engineer needed for data logger development. Develop electronic and embedded firmware solutions for data acquisition, transmission, and management in meteorological and solar applications. Requires experience in C/C++, microcontroller programming, communication protocols, and embedded web technologies.

Consultant specializing in Transport and Infrastructure Strategic Consulting. Will work with leading transport operators, infrastructure developers, and investors on strategic, commercial, and operational challenges. Requires a Master's Degree in Civil Engineering or a related field, fluency in Spanish and English, and strong analytical skills.

Ad Success Representative will manage client relationships, oversee campaign processes, and provide insights to drive campaign success. Requires 3+ years of experience in customer success, account management, or ad operations. Proficiency in Salesforce, Google Sheets/Excel, Slack, and customer support platforms is needed. Fluency in English and German is required.

Client Advisor for Emporio Armani corner in El Corte Inglés Marbella. Provide excellent customer service, advise on collections, and build customer relationships. Must have at least 3 years of experience in fashion sales.

The Director of Food & Beverage assesses, evaluates, and ensures the achievement of the resort's food & beverage goals. This role develops and implements business plans and sales strategies to maximize guest satisfaction, sales, and profitability. The Director monitors industry trends, conducts inspections, and participates in the development of recognition programs and promotional campaigns. They also manage the food & beverage department, control costs, analyze sales, and ensure compliance with laws and regulations.

The Sales Manager – Travel Industry will position the property within the luxury leisure market and strengthen relationships with key travel industry partners. This role reports to the Director of Commercial and requires a Bachelor's degree, minimum 4 years of hospitality sales experience, and at least 3 years of experience handling high-end leisure for a 5* luxury property.