backend developer English-speaking jobs in Oviedo

Chief Commercial Officer to lead international expansion of a health-tech company. Define and execute global commercial strategy, lead sales and partner teams, and accelerate market penetration. Requires 10+ years of B2B SaaS experience, internationalization expertise, and advanced English.

Commissioning Technician will execute test and commissioning activities for hydrogen generation units. Responsibilities include data acquisition, Factory Acceptance Tests, and supporting Site Acceptance Tests. Requires FP II in mechanical, electrical, chemical, or similar studies and 2+ years of experience in production processes.

Senior Integration Engineer needed to design, build, and troubleshoot APIs using MuleSoft in a global enterprise environment. Must have strong hands-on experience with API architecture and enterprise integrations.

International Regional Manager needed to lead sustainable growth of a designated region. Responsibilities include P&L management, sales force effectiveness, business development, and regulatory strategy. Requires a university degree in Health Sciences, 5+ years in the pharmaceutical/biotech sector, and fluency in English and Spanish.

Sales Development Representative to qualify leads, reduce no-shows, and ensure high-quality candidates reach the sales team. Focus on inbound lead qualification, follow-up, and CRM management. Native or impeccable English required.

Clinical Research Associate needed for global clinical development and trial implementation. Requires 2+ years of experience in a similar role, strong understanding of ICH-GCP, FDA, EMA, and local regulations, and fluency in English.

Brand Ambassador needed to deliver premium customer experiences for a luxury automotive manufacturer. Must be native or bilingual in Austrian German and have advanced English skills.

Manages the day-to-day operations of a global IT service desk, ensuring service levels and KPIs are met. Acts as the main point of contact for internal stakeholders and external service providers. Drives process standardization and adoption of ITIL best practices.

Planning Intern will support recruitment, onboarding, HR software management, health and safety initiatives, training and development, employee accommodation, and operational HR functions. Must have EU nationality, fluency in English and Spanish, and a degree in Hospitality, Business, or a related field.

Full Stack Engineer to join a growing development hub in Valencia. Develop and maintain web application features across the full stack (React + TypeScript frontend, Express.js + TypeScript backend). Design and implement database schemas, migrations, and optimized queries (MySQL / MariaDB). Build and maintain REST APIs and integrate them with frontend systems.

The Head of Finance will lead the economic and financial management of the CNAG Consortium, reporting to the General Manager. Responsibilities include budget management, financial reporting, and ensuring compliance with regulations.

System Integrator (Avionics) for international projects. Own electrical and electronic system integration of unmanned aerial systems, including wiring, electrical architecture, and physical integration. Design, improve wiring harnesses, and create electrical documentation. Plan and execute electrical testing and support system integration, ground, and flight testing.

Arrow ECS Spain seeks a Field Sales Representative to drive and expand the strategic plan with Microsoft. This role focuses on executing sales plans, collaborating with internal teams, and identifying new business opportunities within the Microsoft ecosystem.

Sanitas seeks entrepreneurial professionals to develop their own business as Exclusive Insurance Agents in Mazarrón, Murcia. Agents will manage their own commercial activity, build client portfolios, and utilize digital tools to grow their business.

Back Office CS Engineer provides 2nd line operations and maintenance support for the Core CS Network. Manages outages, escalations, and complex projects. Acts as a central point of contact for major changes and resolves complex technical issues. Requires a Bachelor's or Master's degree in a related field and 3+ years of experience in Core Network maintenance and operation.

Lead expansion into new geographies, platforms, and sub-brands for a high-performing supplement brand. Own commercial performance, define success metrics, and build new sub-brands. Requires 3+ years of experience growing ecommerce brands, excellent commercial judgment, and comfort with ambiguity.

Experienced Product Designer needed to improve and evolve a 10-year-old e-commerce platform. Design and optimize user experiences for both customer-facing and internal tools. Strong Figma skills and experience designing complex systems required.

QA Specialist for a pharmaceutical company in Sant Cugat. Minimum 3-4 years of experience in a similar QA R&D GMP role. Responsibilities include deviation and change control management, supporting the Quality Management System, and managing submissions to AEMPS.

Experienced Java Developer to design and develop bank integration solutions using Spring Boot. Responsibilities include building RESTful APIs, implementing JWT authentication, and developing event-driven workflows with messaging tools like RabbitMQ or Kafka. Requires strong experience with Java, Spring Boot, PostgreSQL, and background job frameworks.

Casamona Real Estate seeks a fluent English and Spanish speaker to assist with property leasing, finding new listings, and creating marketing content.