frontend developer English-speaking jobs in León

Leads the execution of turn-key EPC/core only projects, ensuring on-time, on-budget delivery and customer satisfaction. Manages project schedules, budgets, people allocation, and safety/quality plans. Resolves technical issues and coordinates with EPC, Equipment Delivery, and other partners. Oversees contractors and sub-contractors to ensure quality, schedule adherence, and safety guidelines. Reports to the Senior Manager, Projects.

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.

Manages regional delivery service partner network, including sourcing, onboarding, and performance management. Leads regional growth initiatives, including capacity planning, expansion, and product rollout. Develops and implements last mile operations processes to ensure quality and performance.

CAD Designer intern to develop 3D models, technical drawings, and visualizations for a floating wind platform. Requires proficiency in SolidWorks and fluency in Spanish and English.

Join YOUNG's 90-day Founder program to build and operate a real company. Work on active companies, take ownership, and iterate quickly. Performance is reviewed every two weeks.

Shape and scale DEKRA Digital Trust Services' Data Center TIC Services offering across cybersecurity, safety, sustainability, and system integrity. Define strategy, build a service portfolio, lead go-to-market activities, and establish a scalable delivery model. Lead a team, represent DEKRA externally, and translate offerings into service catalogues and delivery playbooks.

Support daily underwriting tasks including risk analysis, file processing, and policy condition review. Assist with new business development, financial analysis, and proposal preparation.

Product Development Senior Scientist leads technical execution of projects across veterinary medicines, hygiene, and feed. Manages lifecycle activities, collaborates with cross-functional teams, and ensures technical and quality requirements are met. Requires a degree in a relevant field and 5+ years of experience in pharmaceutical development.

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.

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.

Senior Optimization Engineer needed to architect and deploy advanced nonlinear optimization engines. Responsibilities include designing custom algorithms, translating multi-physics phenomena into optimization problems, and customizing solver behaviors. Requires a PhD in a relevant field and deep knowledge of nonlinear optimization theory, programming languages (Julia, C++, Python), and large-scale solvers.

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

Estimating Engineer for utility-scale PV and BESS projects. Prepares EPC cost estimates, develops CAPEX breakdowns, and coordinates with engineering, procurement, and construction teams. Requires 3+ years of experience in EPC estimating for utility-scale PV projects (≥50 MW) and experience with BESS projects is highly desirable.

Senior AQA Engineer (Java) will design and implement automation solutions for functional and non-functional test requirements. Responsibilities include creating and maintaining test artefacts, tracking quality assurance metrics, and collaborating with development, support, and business teams. Requires 5+ years of experience in Quality Assurance and Test Automation with extensive experience in developing test automation scripts in Java and working with databases (Oracle/PostgreSQL).

Administrative, Accounting & Sales Assistant needed for international contemporary art agency. Responsibilities include bookkeeping, financial reporting, sales administration, logistics coordination, and project support. Requires 3+ years experience in administration, accounting, or office management, strong organizational skills, and proficiency in Microsoft Office and accounting software. Fluent English and Spanish required.

Revelyst, an action sports company, seeks a creative Web & Graphic Design Intern (UI/UX focus) to support digital design initiatives and enhance the e-commerce experience. The intern will assist in creating digital assets, optimizing e-commerce site layouts, and collaborating with cross-functional teams.

Pricing Actuary to develop and execute UK pricing strategies for Motor, Home, Pet, and SME portfolios. Build data-driven models, analyze portfolio performance, and collaborate with MGAs and partners across Europe.

Business Development Manager to drive new business opportunities and revenue generation. Focus on outbound prospecting, lead generation, and qualification. Support opportunity progression and build a strong sales pipeline.

Sales Account Manager specializing in polyolefins (PE/PP) to drive business growth and manage key accounts in the Iberian market.

Head of Studies will lead and develop a team of teachers, manage class schedules, and ensure academic quality. Requires a degree, teaching qualification, strong communication skills, and fluency in English and Spanish.