frontend developer English-speaking jobs in León

Avidity Science seeks a Biomedical Sales Manager to build and grow its presence in Spain, with future support for Italy and Portugal. This field-based role focuses on introducing animal drinking systems and water purification solutions to research environments. The ideal candidate will have experience in technical, scientific, or capital equipment sales, distributor management, and be fluent in Spanish and English.

Account Executive to manage the full sales cycle for the German market remotely from Spain. Requires fluency in German (C2) and Spanish or English (B2), 1.5-2 years of B2B/B2C sales experience, and strong negotiation and communication skills.

Growth Marketing Lead to drive revenue through marketing activity. Manage LinkedIn presence, create content, generate leads, and support sales. AI-savvy and commercially minded. Freelance/autónomo initially, transitioning to employed contract.

Strategy & Market Analyst to support business growth through market intelligence and strategic analysis. Responsibilities include monitoring global energy markets, delivering strategic briefs, and contributing to strategic projects. Requires a degree in a relevant field, fluency in English, 4+ years of experience, and strong analytical and communication skills.

Electrician to perform electric routing and systems installations for Tiger MKIII prototypes. Requires over 5 years of experience in aeronautical helicopter production or maintenance, including experience with the Tiger helicopter.

Bilingual Team Assistant to support a Spanish team in an International Law Firm. Responsibilities include agenda management, inbox management, travel coordination, project oversight, CRM management, documentation preparation, and client communication.

Designs, develops, and deploys analytical solutions using SQL, Python, and Power BI to transform data into actionable insights. Collaborates with stakeholders to identify requirements, define models, and deliver data intelligence solutions. Maintains complex data models, serves as a subject matter expert for data availability and quality, and provides guidance to stakeholders.

Provides logistics support for a pharmaceutical company, including inventory reconciliation, interface monitoring, distribution support, and delivery tracking.

Leads user acquisition strategy and performance across paid, organic, creator-led, and partnership channels for a fast-growing consumer technology business.

Experienced Head of HR to design and implement centralized HR infrastructure for a growing iGaming group. Will establish scalable HR processes, build recruitment pipelines, and introduce performance management frameworks. Relocation to Valencia, Spain within 6-9 months required. EU citizenship is mandatory.

Senior Product Manager will own the product lifecycle of real-time products, drive product adoption, and shape the product roadmap. Responsibilities include gathering user requirements, translating needs into features, and collaborating with cross-functional teams. Requires 4+ years of product management experience, 2+ years in SaaS B2B, and fluency in English.

Lead the design and execution of portfolio optimization and hedging strategies across European power markets. Manage market positions, structure PPAs, and develop valuation frameworks.

Ensures compliance with Service Level Agreements (SLAs) across airport lounge operations. Monitors service quality, operational checklists, and performance standards. Identifies service gaps and implements corrective actions. Collaborates with operational leaders, support functions, and airport stakeholders to maintain service excellence.

Senior HR leader to develop and execute global HR strategies, manage the full employee lifecycle, and drive organizational change in a fast-growing manufacturing company.

Application Security Analyst will evaluate business requirements, review software architecture, and conduct security testing. Requires a bachelor's degree, application security experience, and knowledge of Java, C++, and C#.

Customer Success Manager for Monday.com business line. Manages customer lifecycle, builds strategic relationships, and drives revenue growth. Requires 4+ years of experience in customer success or account management, advanced Monday.com knowledge, and strong communication skills in Spanish and English.

The Sales Operations & Administrative Assistant provides operational and administrative support to management, managing customer communications, overseeing the order-to-delivery cycle, and maintaining customer data.

Manages the Health, Safety, and Environmental performance of a project, ensuring compliance with legal requirements, company policies, and industry best practices. Leads and manages the site HSE team, develops and enforces HSE strategies, and oversees inspections, audits, and incident investigations. Requires a Bachelor's degree in a related field, 5+ years of HSE experience in construction, energy, or industrial projects, and relevant certifications.

Hi Homes seeks experienced Real Estate Agents for premium property sales on the Costa del Sol. Candidates must have a proven track record of success, experience working with buyers, and strong market knowledge. Fluency in English is required, additional languages are highly desirable. This commission-based role offers unlimited earning potential.

German-speaking Customer Support Specialist needed for a major international hotel chain. Handle inbound calls from German-speaking customers, assist with reservations, and provide excellent customer service.