javascript English-speaking jobs in Castile and León

The Chief Operations Officer (COO) is responsible for the design, performance, and scalability of PayXpert's operational model. The COO will lead the development and execution of operational strategies, ensure operational excellence and service delivery, and manage budgets and resources. The role requires strong leadership, strategic thinking, and experience in fintech or similarly regulated industries.

As a Digital Marketing Designer supporting EMEA, you will create high-impact paid media creative across Europe, the Middle East, and Africa. This role requires motion design expertise and proficiency with AI-powered creative tools. You will produce thousands of paid media assets across multiple markets, languages, and platforms while maintaining brand consistency.

Senior Product Designer needed to lead the design process from concept to delivery for web and mobile products. Collaborate with cross-functional teams to translate complex requirements into user-centered solutions. Must have 6+ years of experience designing digital products, strong portfolio, and proficiency in Figma.

The Billing & Sales Specialist ensures accurate billing of services sold and traceability across the commercial lifecycle. This role deploys and improves the Billing Industrial Model, aligning it with Cellnex's commercial strategy and business applications. The position focuses on standardization, automation, and efficiency within the commercial process, particularly for MNO contracts and complex telecom service billing models.

Design, develop, and validate solar arrays for space applications. Responsibilities include requirement definition, 3D CAD design, electrical schematic development, component selection, and electrical analysis.

Lead the technological evolution of Quantica's additive manufacturing platform, transforming R&D breakthroughs into scalable industrial products. Responsible for technology vision, engineering operations, and multi-disciplinary technology strategy.

Operations & Administration Intern will provide administrative and operational support to teams in the Madrid office. The intern will assist with data management, report preparation, meeting coordination, and onboarding.

Asset Liability Management (ALM) Analyst will analyze and present ALM risk reports, manage various risks, and calculate capital requirements. Requires 5+ years of experience in ALM, risk management, or actuarial roles and a Master's degree in a relevant field.

The Regional Talent Partner (Director) EMEA & Latam develops and executes talent and organizational development strategies aligned with regional business priorities and global frameworks. This role collaborates with business leaders, HR Business Partners, and Centers of Excellence to build leadership capability, enhance organizational effectiveness, and support workforce planning.

Customer Operations Specialist to support French-speaking customers. Manages orders, handles inquiries, and ensures customer satisfaction. Requires 3+ years of experience in customer service, sales support, or a related field. Fluent English and proficiency in Microsoft Office and ERP systems are essential.

Experienced CFO to lead financial strategy, manage investor relations, and drive profitability for a rapidly growing technology company in the industrial sector.

Develop and create beautiful software and mobile apps for Southeast Asian markets, collaborating with design and production departments.

Visium seeks a part-time Head of Legal with 10+ years of experience in corporate, commercial, or technology law. The ideal candidate will advise leadership on legal and governance matters, negotiate commercial agreements, and ensure compliance with regulations.

Junior Travel Coordinator will assist with trip operations, negotiate rates, and confirm suppliers. Processes travel reservations and services, working with hotels, guides, and other vendors. Requires a Diplomatura/BA and experience in luxury hospitality or a similar high-end service environment. Must have a high level of English (C-1 minimum) and knowledge of various software programs.

TikTok Strategist to consult on content strategy for a crypto/Web3 brand account. Develop content pillars, formats, and posting cadence. Analyze trends and advise on creator briefs. Proven track record managing brand TikTok accounts required.

Leads profitable growth and strategic development of the Rubber activity across Europe, America, and Asia. Responsible for operational and financial performance of the Rubber business and Sales Friction in Europe, CIS, and North Africa. Requires 10+ years of senior leadership experience in the Railway Industry with a proven track record in P&L management or sales responsibility. Must have experience selling products or services to car builders or transport operators.

Designs and develops backend SQL solutions to support global Power BI reporting. Creates Power Apps and user-friendly interfaces for efficient data management. Enhances data infrastructure by integrating new architectures and data sources. Ensures data governance, security, and GDPR compliance. Collaborates with technical teams and stakeholders to align solutions with strategic priorities.

Lead the strategy and roadmap for Enso's end-to-end tech platform, including design, data analysis, and stakeholder coordination. Requires 5+ years in digital product, full-stack design skills (Figma), and advanced AI usage. Fluent English, good Spanish, and Barcelona-based or willing to relocate.

Project manager with 5+ years of experience in technical change management, environment management, or IT operations governance. Experience coordinating software deployments and infrastructure changes across multi-technology environments. Strong understanding of ITIL Service Management processes.

FINERGE seeks an M&A and Valuations Specialist to support the origination, execution, and closing of M&A transactions and financings. The role involves economic analysis, valuation of development projects, and contributing to strategic initiatives.