backend developer English-speaking jobs in Aragon

Coonerang Language School seeks experienced English teachers for the 2026-2027 academic year. Must have a university degree or equivalent certification, minimum C1 English proficiency, and at least one year of experience teaching English to groups. Availability Monday to Thursday between 16:00 and 21:30 is required.

Customer Service professional needed to manage customer orders, resolve incidents, and provide support to local and international clients. Experience in handling customer orders and transaction processes is beneficial.

Math Teacher needed for a full-time position at an international high school in Barcelona. Responsibilities include teaching, curriculum development, student evaluation, and record keeping. Minimum requirements include a Bachelor's degree in Mathematics, teaching certification, and 2+ years of teaching experience. C1 English proficiency is required.

Global Quality Specialist ensures adherence to quality systems across the supply chain, from purchasing to sales. This temporary role involves promoting quality awareness, managing QA issues with suppliers and customers, and evaluating supplier performance. A degree in Food/Chemistry/Biology is required.

Associate Medical Director in Neurology provides clinical and scientific advisory expertise across IQVIA divisions. Responsibilities include Medical Monitoring, strategic input for business development, and reviewing trial documentation. Requires a medical degree and 5+ years of clinical medicine experience.

Lead SME & Growth in Spain, driving commercial success for Airwallex. Responsibilities include building and leading sales teams, executing go-to-market strategy, managing P&L, and enhancing brand presence. Requires 8+ years in sales or GTM leadership.

Fashion Buyer to design sportswear collections and set trends for global stores. Analyze sales data, collaborate with design teams, negotiate with suppliers, and monitor production. Requires 3+ years of experience in fashion retail, analytical skills, negotiation skills, and fluency in English and Spanish.

Flavourist to manage and deliver flavour development projects globally. Conduct analytical work using chromatography and mass spectrometry to develop and characterize flavours for food applications.

Strategic AI Lead for Finance to bridge business and technology, driving AI impact within Finance. This role identifies high-value opportunities, shapes AI use cases, and leads execution across the function. Requires experience in transformation and strong stakeholder management.

Service Intern role managing order entry, processing warranty claims, and supporting customer technical requests via CRM. Requires secondary school degree, strong interpersonal skills, and fluency in Spanish and Portuguese.

Travel Specialist needed for Tablet Hotels. Assist clients via phone, email, and chat with reservations, recommendations, and support. Requires fluency in German and English, and experience in reception roles.

Lead the commercial strategy for a market-leading company in transportation, logistics, or eCommerce. Drive growth, customer acquisition, and value creation by leading sales, marketing, and business development functions.

Regional Projects Director to oversee EPC and turnkey projects across Central and South America. Requires 15+ years managing complex engineering projects, leading multidisciplinary teams, and proficiency in English and Spanish.

Medical Affairs Specialist to support clinical and scientific evidence generation for robotic surgery systems. Collaborate with clinical, regulatory, and R&D teams. Prepare documentation, conduct literature searches, and coordinate clinical investigations.

This role leads safety data review and PV input for safety documents and regulatory reports. Responsibilities include risk management planning, leading cross-functional PS activities, and authoring strategic regulatory submissions. Requires 7+ years of relevant experience.

Vice President Software Engineering to transform Alpega's engineering. Lead modernization of cloud-native, API-first systems, boost delivery velocity, and build high-performing, product-focused teams. Requires 15+ years in software engineering leadership.

Cash Desk Manager requires 1-2 years of supervisory cash handling experience in customer contact roles. Responsibilities include supervising international teams, resolving guest issues, and accurately counting currency and chips. Proficiency in basic math and computer software is necessary.

Experienced Steam and Gas Turbine Mechanics needed for major overhauls, inspections, field service, and maintenance. Must have proven experience in turbine maintenance, disassembly/reassembly, and technical documentation interpretation. Willingness to travel for short and long-term projects required.

Solid State Battery Researcher will develop, characterize, and optimize solid-state batteries. Responsibilities include project management, data analysis, and writing technical reports. Requires a PhD in a relevant field, 3+ years of experience in lithium battery R&D, and expertise in cell development, characterization, and synthesis.

German-speaking Customer Service & Reservations Advisors handle inbound reservation calls in German for a leading international hotel brand. The role requires native or C2 German and advanced English to support bookings and travel inquiries.