frontend developer English-speaking jobs in León

Flight Instructors provide hands-on training to pilot students, both in the air and on the ground. Instructors teach fundamental flying and theory skills, communicate instructions clearly, and emphasize safety standards. They assess student progress, maintain records, and ensure compliance with aviation regulations.

AI Engineer interns will develop and deploy AI solutions, optimize algorithms, and collaborate with clients across industries.

Software Engineer for CRM Marketing Automation on Salesforce Marketing Cloud. Responsibilities include designing, developing, and maintaining backend systems and services for global platforms. Requires experience with Salesforce Marketing Cloud, backend development, APIs, databases, and cloud platforms.

Life3A Madrid seeks two BIM Architects: one for international projects (1-5 years experience) and one for Spanish projects (proven experience in Spain). Both roles require advanced Revit skills and experience across design phases.

PowerBuilder Developer needed for a long-term strategic project. Develop and maintain critical applications, ensuring high-quality code and adherence to enterprise standards. Expertise in PowerBuilder, Oracle and/or SQL Server databases, and GIT version control required.

Provide first-level remote IT support to users in various time zones and locations. Resolve user issues, monitor alerts, and escalate requests as needed. Requires 4+ years of experience in IT Help Desk and Service Desk, proficiency in Active Directory, Exchange Server, and ticketing/collaboration tools. Must be fluent in English and Spanish.

This internship supports the development of Glovo's Retail business unit, focusing on long-tail categories like electronics, pharmacies, beauty, and toys. The role involves implementing tools, analyzing performance metrics, and collaborating with regions to understand local market insights.

Network & Firewall Engineer needed for operational tasks including applying changes to Palo Alto firewalls, managing configurations, reviewing logs, and collaborating on maintenance. Must have experience with Palo Alto Networks, Panorama, networking fundamentals, and basic Linux and scripting knowledge.

Administrative Accountant / Bookkeeper needed for a fast-growing international accountancy firm. Responsibilities include bookkeeping, processing invoices, answering client inquiries, and providing accounting support. Requires solid Spanish accounting knowledge, proven experience, and strong communication skills.

The Program Development Manager will elaborate the program roadmap, lead program development activities, and deliver program baselines. The role involves working with teams across the business, managing program items configuration, and supporting the Program Manager for engineering topics.

Build and maintain production-grade LLM systems, including RAG, semantic search, and embeddings. Design and develop Python APIs and microservices. Deploy and manage infrastructure in AWS. Monitor model quality and collaborate with cross-functional teams.

EU Business School seeks a CRM & Marketing Operations Lead to lead the migration from HubSpot to Microsoft Dynamics 365. This role involves data mapping, system architecture, and building automated workflows for global email marketing campaigns. The ideal candidate has 3+ years of experience leading CRM migrations, proficiency in HubSpot and Microsoft Dynamics, and strong copywriting skills.

Property Manager Assistant needed for two apartment buildings in Menorca (May-October). Support daily operations, guest services, and maintenance coordination.

Lead the electromechanical design of substations, ensuring functionality, reliability, and compliance. Develop 3D models, review technical specifications, and provide recommendations throughout project phases. Collaborate with teams on change and claim management.

Real Estate Investment Associate / VP will participate in all phases of the investment lifecycle, including sourcing, analysis, execution, and closing of real estate investments. Responsibilities include identifying opportunities, preparing investment analyses, financial models, and supporting transaction execution. Requires 5-10 years of experience in investment banking, private equity, or real estate funds, strong financial modeling skills, and fluency in Spanish and English.

Production Planner for Leather Goods and Accessories will collect and challenge capacity assumptions, ensure master data reliability, and define ramp-up plans. The role requires proven experience in production planning, knowledge of MRP principles, and strong communication and problem-solving skills.

Leads the global go-to-market launch of Unit4's AI-native architecture, a company-wide 18-month initiative. Owns the GTM strategy and execution, translating technical innovation into market narratives and demonstrating commercial value. Builds and leads a product marketing function, shaping market perception through analyst relations and establishing scalable GTM disciplines for future innovation.

Payroll Specialist needed for calculation, review, and management of employee data. Requires 5-7 years of experience, advanced Excel skills, and knowledge of Spanish labor regulations. Experience with Epsilon Castilla and QlikView is preferred.

This Junior Financial Controller role offers a unique opportunity to develop accounting and financial skills within a group of two companies. Responsibilities include managing the full accounting cycle, participating in monthly closings, and preparing financial reports.

Finance professional to join FP&A team, reporting to the FP&A Director. Will partner with Commercial, Supply Chain, Product Management, and Production. Responsibilities include corporate reporting, leading the Global S&OP process, and optimizing sales and procurement strategy.