backend developer English-speaking jobs in Extremadura

Evaluate a new AI personalization feature for Gemini, assessing the quality of model responses based on user's personal data and experiences.

CELANESE is seeking driven, curious individuals for the 2026 Employment Forum in Gijón. We are looking for talent in Human Resources, VAT, Treasury, Accounting, Product Stewardship, and Corporate Finance. Degrees in Business Administration, Economics, Data Analytics, or Artificial Intelligence are valued.

Data Privacy Lawyer with 3-4 years of experience advising global companies on compliance with privacy regulations (GDPR, LOPDGDD, UK GDPR, LGPD). Draft and review legal documentation, conduct risk assessments, and manage international compliance projects. Strong knowledge of GDPR, LOPDGDD, and international privacy frameworks required. Fluent English (C1 level) and excellent legal drafting skills essential.

Data Architect & MarTech Expert needed for a full-time, long-term project. Manage data flows between Relay42 and Salesforce Marketing Cloud, ensuring seamless integration and audience segmentation. Expertise in Relay42, Salesforce Marketing Cloud, SQL, and Google Cloud Platform required.

Design Engineer to lead technical design and planning of photovoltaic solar power plants. Responsibilities include layout design, detailed engineering, tender support, and interdisciplinary coordination. Requires a Bachelor's degree in a relevant field, 2+ years of experience in large-scale photovoltaic projects, and proficiency in CAD software, MDT, and Excel.

Build and maintain production AI agent flows using Python and LangGraph. Design and implement automation flows and recommendation engines. Own the integration with sandboxed execution environments for tool execution.

Senior Frontend Developer to build a scalable, enterprise-level Next.js application. Requires 6+ years of experience with React, Next.js, component-driven development, and responsive design.

SMC Corporation seeks a Project Engineer IT (Project Manager) for its European Marketing Center in Vitoria. The role involves defining project scope, developing project plans, managing third parties, and ensuring on-time, on-budget project delivery. Experience with web application programming (JAVA preferred) and UNIX/LINUX is valued.

The Chief Operating Officer will lead the scaling and professionalization of Almond Real Estate's operations, ensuring operational excellence in a fast-growing environment. The COO will review, improve, and automate core processes to build strong foundations for sustainable growth.

Laboratory Technician needed to perform experiments, analyze data, and support laboratory organization. Requires a Bachelor's or Master's degree in a relevant field and experience with cellular biology, molecular biology, and other laboratory techniques.

ServiceNow Developer will design, develop, and implement solutions focused on network service management, inventory, and orchestration within the telecommunications sector.

Provides administrative, operational, and organizational support to the General Manager and management team. Prepares documentation, manages schedules, and tracks tasks. Requires experience in administrative roles, proficiency with office tools, and fluency in English and Spanish.

The Data Technical Lead designs, implements, and ensures quality assurance of data solutions within a specific business domain. This role bridges enterprise data architecture and operational delivery, ensuring data initiatives are well-designed, implemented, scalable, and aligned with business needs. Responsibilities include technical design, implementation, and quality control of data solutions, including the evolution of the Data Lake.

Project Director to lead execution of large-scale photovoltaic solar plants in New York, USA. Manage entire project lifecycle, ensuring technical, financial, and timely completion.

Business Analytics Trainee will participate in decision-making for a growing international business. Responsibilities include corporate reporting, analysis of key indicators, and budgeting.

Lead Solution Engineer to drive technical excellence across platforms. Shape end-to-end solutions, mentor engineers, and ensure production-ready systems aligned with DevOps practices. Requires strong full-stack development, polyglot experience, and demonstrable experience with AI-assisted coding.

Senior Project Manager (AI) to lead complex AI initiatives (Generative AI, ML, data engineering) from initiation to deployment. Manage multiple mid-to-large projects, ensuring quality, timeline, and budget compliance. Coordinate cross-functional teams, manage dependencies, and remove delivery impediments.

Sales Support Administrator to provide administrative support to the sales team, including preparing meeting materials, assisting with client proposals, and maintaining accurate client records.

Logistics Intern to support daily operations, monitor service levels, analyze inventory, and track transport flows. Must have a Master's degree, strong analytical skills, and fluency in English.

Purchasing Specialist will coordinate orders with suppliers, negotiate terms, track purchase orders, and collaborate with various departments. Requires a degree in a related field, 2+ years of experience in procurement, strong SAP MM knowledge, and fluency in English.