frontend developer English-speaking jobs in León

Develop and maintain APIs using ASP.NET Core hosted on Azure. Write and maintain automated unit and integration tests. Implement and manage monitoring and alerting solutions on Azure. Collaborate with cross-functional teams in an Agile framework.

Experienced Sales Executive sought for a remote, permanent position with a luxury aviation company. Responsibilities include acquiring new clients, generating leads, and managing relationships with high-net-worth individuals. Fluency in English, German, and Spanish is required.

Provides critical support across invoicing, vendor management, financial reporting, HR administration, and operational coordination. Ensures accurate financial transactions, maintains compliant documentation, and coordinates with external partners.

Accounting & Administrative Manager to support the financial and administrative management of three growing companies. Responsibilities include coordinating accounting activities, organizing documentation, tracking expenses, and assisting with personal finance organization. Requires a degree in a related field, 1-2 years of experience, fluency in English, and experience with Sage Despacho and/or Sage 200.

Senior Backend Engineer to design, develop, and maintain scalable APIs and backend services for autonomous inspection robots. Will work closely with robotics engineers and software teams to ensure system reliability and usability. Requires experience building maintainable backend systems and APIs, strong problem-solving skills, and proficiency in TypeScript.

Senior Employment Lawyer to provide day-to-day legal advice, manage labor relations, and handle employment law matters for a fast-growing international technology company. Requires a Spanish-qualified lawyer with 8+ years of experience, strong communication skills, and fluency in Spanish and English.

Senior SAP Project Manager to lead large-scale SAP S/4HANA initiatives in a complex, multi-ERP environment. Focus on end-to-end project execution, stakeholder alignment, and cross-functional leadership. Requires strong understanding of SAP S/4HANA within Distribution and Logistics.

Business Development Consultant to manage and expand client relationships, crafting tailored strategies and ensuring customer satisfaction. Proven experience in B2B consulting sales and strong understanding of sales performance metrics required.

International Business Intern to support company expansion. Conduct market research, assist with contract preparation, and collaborate on logistics and strategic initiatives.

Mechanical Production Engineer needed for optical payload manufacturing and testing. Responsibilities include leading production processes, ensuring quality standards, and collaborating with engineering and supply chain teams. Requires 1-3 years of experience in mechanical production or manufacturing engineering.

Mechanical Engineer Assistant Intern will support the Technical & Construction Team in resolving and developing mechanical-related activities. Assist with mechanical related technical analysis and procurement. Support preparing technical reports and documentation. Bachelor's degree in Mechanical or Industrial Engineering required. Advanced English and Spanish required.

Provides legal counsel and support for a variety of business operations, including contract drafting, negotiation, and review. Manages external legal counsel and provides legal analysis on dispute resolution and compliance matters.

This full-time on-site role in the Greater Barcelona Metropolitan Area manages international transportation operations, coordinates logistics, and ensures client satisfaction.

Lead People Operations as a product and execution engine for a high-growth AI-driven ad tech company. Build and scale people systems across hiring, onboarding, performance, development, and retention. Design an AI-first people platform to improve outcomes.

Sales Engineer to identify and develop business opportunities for an international company specializing in automation solutions. Requires a technical background, strong commercial acumen, and experience managing complex projects.

Experienced Debt Collection and Claim Recovery Specialist sought for UK and German cases. Investigate, negotiate, and recover international trade receivables.

We are currently looking for Software Engineers who want to join our team. You will help us in building and maintaining our core platform, from ideation to deployment and beyond. This is a place where everybody has a voice and we love to hear it, so you will be able to share your ideas and opinions from day one. Sounds interesting? Keep reading!

Provides on-site technical support for desktop and laptop systems, including troubleshooting hardware, software, and connectivity issues. Manages the full lifecycle of desktop devices and delivers support using tools such as SCCM, Intune, and ServiceNow. Ensures compliance with security protocols and offers VIP support during critical escalations.

Designs and implements telecom solutions for voice and data domains (4G/5G and VoLTE) in Spain. Manages projects, reports to management and technical director, and ensures customer satisfaction. Requires a Master's or Bachelor's degree in Telecommunications or Computer Science, fluency in Spanish and English, and experience in core NFV voice or data projects.

Junior Software Developer to assist in the development and maintenance of internal applications. Support IT team with programming, testing, and documentation. Requires 1 year of experience and knowledge of C#, Java, HTML, CSS, Javascript, SQL, and Git. Interest in ERP systems is valued.