frontend developer English-speaking jobs in León

The European Training Foundation (ETF) is seeking Migration and Labour Mobility experts for project-based assignments across Europe. Applicants must have a Master's degree or higher and relevant professional experience.

Drive growth across Iberia and the South of France by developing customer relationships and uncovering business opportunities. Lead sales activity, support distributors, and build long-term partnerships. Identify and develop new business opportunities using Scott Bader's product range.

As the primary customer contact in Spain, this role ensures a seamless customer experience through onboarding, order management, and ongoing support. You will collaborate with internal departments to address customer needs and contribute to process improvement.

The Key Account Manager owns and manages a portfolio of strategic SaaS B2B accounts, focusing on retention, renewals, and growth. Responsibilities include building relationships, coordinating with internal teams, conducting business reviews, and driving account growth through upselling and cross-selling.

Senior Associate / Associate Director – Investment will execute real estate transactions across the EMENA region, from sourcing to exit analysis. Responsibilities include underwriting, financial modeling, transaction analysis, and due diligence management.

Firmware Engineer will capture software component requirements, propose functionality, develop, test, and integrate assigned components. Responsibilities include bug fixing, documentation, and utilizing programming technologies such as C, C++, Python, TCL, and Qt-QML.

Middleware MQ Administrator needed for a multinational banking leader. Provide architectural expertise, contribute to technology roadmap development, and collaborate with application developers. 3+ years of IBM MQ Series administration and high expertise in Linux environments required.

Account Manager for AIoT products across all channels, including operators and open market. Manages partner relationships, drives sales execution, and coordinates with internal teams. Analyzes sales data and identifies improvement opportunities.

Asset Integrity Project Engineer manages and delivers engineering projects within scope, schedule, budget, and quality. Requires 3+ years energy sector experience, project engineering/management experience, and fluency in English.

IAM Developer to design, implement, and customize Keycloak infrastructure. Responsibilities include securing microservices, managing authentication flows, and extending Keycloak functionality via custom SPIs. Requires expertise in Keycloak configuration, OIDC, OAuth 2.0, SAML 2.0, and custom Java extensions.

Reception & Attendance Specialist will support Chinese Delegation management, including itinerary preparation, accommodation arrangements, and budget management. Responsibilities also include apartment management, such as finding, negotiating, and coordinating rentals. Requires fluency in Chinese, advanced Spanish and English, and 2+ years of relevant experience.

Leads the development and delivery of clinical and regulatory documents for global R&D programs. Manages external vendors and ensures compliance with ICH, GCP, and global regulatory standards. Requires an advanced degree in Life Sciences and 8+ years of experience in medical writing within pharma or biotech.

Senior ML Security & Robustness Engineer will design, test, and deploy secure and resilient ML systems. Responsibilities include developing adversarial defenses, securing ML artifacts, implementing privacy-preserving learning techniques, and collaborating with research and product teams.

Marketing Specialist to develop and execute creative campaigns across digital channels. Experience with paid media, e-commerce marketing, and content creation required. Fluency in English and Spanish essential.

Network & Infrastructure Engineer needed to manage network infrastructure, virtual environments, and server systems. Responsibilities include network device configuration, VMware platform support, server maintenance, and security monitoring. Requires strong understanding of network protocols, virtualization tools, and server technologies.

AMS Business Quality Operations Specialist ensures cybersecurity compliance for a leading international telecommunications company. Responsibilities include producing monthly cybersecurity reports, conducting internal audits, identifying and resolving compliance issues, and managing daily task progress.

The Global Payroll Manager ensures accurate and compliant payroll delivery across multiple European countries. This role involves leading payroll professionals, managing vendor relationships, and ensuring adherence to local statutory requirements.

Senior Software Systems Engineer to design and implement solutions for satellite operations. Responsibilities include understanding requirements, designing architectures, and implementing backend cloud-based components. Requires 5+ years of experience in satellite ground segment solutions and 8+ years in software engineering. Experience with C++, Python, databases, Kubernetes, and agile methodologies is necessary.

Develop and implement Python-based software for automated control of tunable lasers and optical instruments. Design control algorithms, build GUIs, and integrate with hardware systems.

Talent Acquisition Specialist needed to collaborate with hiring managers, source candidates, and lead interviews. Requires 1+ year of recruiting experience, strong communication skills, and familiarity with ATS. Native Spanish and fluent English required.