backend developer English-speaking jobs in Extremadura

Quantitative Researcher to design, analyze, and refine systematic trading strategies focused on derivatives. Requires experience with derivatives, equity trading desks, volatility, Greeks, and risk management. Strong Python skills and experience with large market data sets are essential.

Project Engineer with expertise in HVAC & Clean Room design for pharmaceutical facility projects. Responsibilities include design, feasibility studies, equipment specification, and project oversight. Requires a Bachelor's degree in Engineering and 2-3 years of experience in a similar role.

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.

Qt Developer to join the iLovePDF Tech team. Maintain and improve the desktop application for Windows and macOS using Qt, QML, C++, and PDF/image processing libraries. Requires 3+ years software development experience, 1+ year Qt experience (including Qt6 and QML), strong C++ and Javascript skills, and experience with Git, CI/CD, and GitHub Actions. Fluency in English and EU citizenship or valid work permit required.

Experienced Bar Manager needed for COYA Ibiza. Minimum 3 years' experience in a luxury hospitality venue. Strong knowledge of cocktails, spirits, wines, and bar operations. Proven ability to lead and develop a bar team. Excellent guest service and organizational skills. Fluency in English, Spanish desirable.

In-house lawyer for a multinational chemical company. Provides legal support to Spanish subsidiaries, drafts legal documents, and collaborates with internal stakeholders. Requires a Master's degree in Law, 4-5 years of experience, and fluency in English.

The Business Unit Manager will lead the strategic and operational success of the CDMO business unit, overseeing sales, commercial operations, and product development. This role requires strong commercial thinking, a results-driven approach, and product technical skills.

Junior Sales Engineer to support global sales of fiber lasers and solutions. Develop customer relationships, advise on technical requirements, and participate in problem solving. Requires a technical background in telecommunications, physics, or industrial engineering with a specialization in photonics. Fluent English and residence in Valencia province or near.

An AI & Automations Operations Intern will design, build, and scale AI-powered operational systems. You will support day-to-day operations, assist with operational processes, and contribute to the creation and improvement of automations.

Giesecke+Devrient seeks a Product Owner to define product requirements, represent users, and ensure successful delivery. Requires a Computer Engineering degree, 2+ years in a similar role, and 2+ years as a software developer. Strong communication, problem-solving, and Agile development experience are essential.

Designs and implements engineering processes (design, product, and manufacturing) within the 3DEXPERIENCE platform. Requires 5+ years of 3DEXPERIENCE/ENOVIA PLM implementation experience and end-to-end project experience.

Junior Full-Stack Developer will build features for a production-ready platform using Next.js and Node.js. Collaborate with founders and senior engineers on LLM orchestration, infrastructure, and data velocity solutions.

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.

International Business Development Manager for a healthcare company focused on EMEA growth. Lead business expansion, identify new markets, and develop partnerships. Requires 5+ years of international sales or business development experience, fluency in English, and strong entrepreneurial drive.

Project Product/Quality Assurance (PA/QA) Engineer will establish, manage, and implement PA/QA arrangements within software development projects. The role requires a university degree in an engineering, technical, or scientific discipline and minimum 5 years of experience in Product Assurance, Quality Assurance, or software engineering.

Provides administrative and commercial support to the Iberia sales team. Creates quotes, coordinates gym layout drawings and BOMs, and manages CRM records. Supports lead generation and qualification activities.

Drive Cainiao's logistics automation business expansion in Europe. Lead sales of solutions including warehousing/sorting integration, AGV/AMR, and smart logistics. Develop market strategies, acquire enterprise clients, and manage key relationships.

Remote Business Assistant to support entrepreneur managing MICE Agency, B2B startup, and multiple companies. Responsibilities include research, presentations, communication, document management, scheduling, and event coordination.

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.

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.