backend developer English-speaking jobs in Extremadura

Senior Software Engineer with strong .NET Framework/.NET Core expertise sought. Designs, develops, and implements software solutions. Requires experience with microservices, SQL Server, and RabbitMQ. Advanced Spanish and English proficiency needed.

Growth Marketing Manager will own end-to-end growth strategy, execution, and optimization across paid, organic, lifecycle, and partnerships. Responsibilities include defining and executing growth strategy, managing acquisition channels, designing and running experiments, and collaborating with product and data teams.

QuiverTree Media seeks a Key Account Manager to manage and grow strategic airline relationships. This role involves account ownership, internal coordination, client presentations, and project management.

Process Engineer needed for a 6-month project in Bilbao, Spain. Must have experience in water treatment and wastewater treatment plant projects, including design, commissioning, and start-up. Requires a degree in Mechanical, Environmental, or Chemical Engineering and proficiency in Spanish and English.

Junior RF Engineer (Chinese) needed for radio network optimization, data analysis, and digital platform maintenance. Must have a science or engineering background, strong logical thinking, and fluency in Chinese.

Sales Broker needed for energy sector specializing in biomethane commodities. Fluent Dutch and English required. Experience in sales, brokerage, or trading desired. Build customer relationships, identify solutions, and negotiate deals.

Customer Support Agent needed to provide phone, email, and in-person support to clients. Responsibilities include managing client issues, providing information about processes, and coordinating with other departments. Fluency in English and Spanish is required.

Customer Success Engineer will manage technical project delivery, provide technical enablement and coaching, and act as a trusted technical advisor to clients. Responsibilities include solution design, integrations, and managing technical escalations. Requires proven experience in client-facing SaaS roles, strong relationship building skills, and excellent communication in English and Italian.

Leads all operational areas of a fully integrated production facility, ensuring safe, efficient, and high-quality production. Manages plant P&L, develops budgets and production schedules, and champions cost optimization and continuous improvement initiatives. Requires a Bachelor's degree in Industrial Engineering and 8+ years of experience leading operations in manufacturing, ideally within highly regulated industries.

Leads strategic planning and optimization initiatives across multiple Business Units, driving efficiency and supporting digital transformation. Manages S·TACT process, develops Fully Automated Supply Chain, and coordinates cross-border supply interactions. Analyzes data, identifies improvement actions, and prepares technical documentation. Requires a Bachelor's degree in Industrial Engineering or Finance, 5+ years of experience, and proficiency in supply chain tools and communication.

The Nando and Elsa Peretti Foundation seeks a Program Manager to manage the administrative lifecycle of grants, ensuring compliance and reporting. The role involves partner relations, documentation, and portfolio support.

After-Sales Service Technician needed to provide technical support to German-speaking dealers, customers, and sales representatives. Manage warranty cases, technical incidents, and spare parts requests. Must have proven experience in the cycling industry and strong technical bike knowledge. Native German required.

Nuclio Talent seeks a Partner Business Developer for the Italian market. Develop and execute partner programs to generate leads and nurture relationships. Must have sales experience, fluency in Italian, and strong communication skills.

AI Solutions Engineer will design, build, and deploy AI Agents across voice, chat, and messaging for enterprise customers. Responsibilities include developing MCP servers, building conversational AI assistants, deploying serverless architectures, and leading technical engagements. Requires 5+ years of experience in AI solution delivery, software engineering, or related fields with expertise in Python, serverless computing, and DevOps.

Procurement Specialist supports, develops, and executes procurement plans in alignment with operational needs. Manages supplier relationships, tenders, contract negotiations, and price analysis to optimize costs and mitigate risks. Leads or supports the rollout of local and global procurement strategies and projects.

SAP PP Specialist to support, enhance, and evolve SAP solutions for production planning and configurable products. Collaborate with business and IT stakeholders to ensure stable operations and continuous improvement.

Payroll Administrator needed for UK payroll processing, ensuring timely and accurate payments. Requires 3+ years of hands-on payroll experience, knowledge of UK legislation, and proficiency in SAP Payroll Software.

Causality Research Scientist to develop and improve foundational methods in causal inference. Conduct data analysis on observational-longitudinal studies and collaborate with domain experts.

Leads Supply Chain projects, including system deployments and data structure implementation. Develops and implements commercial and factory-based projects to meet business needs. Establishes, leads, and manages the Supply Chain PMO, setting governance and reporting standards. Drives the planning, execution, and delivery of strategic supply chain initiatives in Europe. Identifies risks and develops mitigation strategies to ensure business continuity. Collaborates with global teams to ensure resource availability and remove blockers for supply chain projects.

Ocean Freight Consultant manages FCL and LCL shipment operations, communicates with clients and suppliers, prepares documentation, and processes invoicing. Requires a bachelor's degree, 1+ year of freight experience, fluency in English and Spanish, and proficiency in MS Excel.