backend developer English-speaking jobs in Castile-La Mancha

Sales Administration & Logistics Intern will process orders, track deliveries, and resolve customer disputes. The role involves managing customer communication, analyzing sales data, and collaborating with finance and local platforms.

OXON Epidemiology seeks a SharePoint & Power Platform Developer for a contract role. The consultant will design, develop, and maintain SharePoint-based applications and workflows, integrating with databases and reporting tools. Experience with SharePoint Online, Power Apps, Power Automate, and Power BI is required.

Software Engineer to build and scale AI-powered marketing analytics platform using Node.js, TypeScript, React, and LLM APIs.

Power Electronics Modelling & Simulation Expert to design, simulate, and validate power conversion systems for renewable energy and energy storage. Requires a BSc or MSc in Electrical Engineering, Electronics, or related field, and proven experience in power electronics design and simulation tools.

Senior Global Procurement Manager to design and implement procurement strategy across Logistics Capex, MRO, Facilities Management, Site Services, and Maintenance. Lead a team, drive process improvements, and oversee KPI implementation. Requires expert procurement knowledge, strategic sourcing experience, and strong stakeholder engagement skills.

Junior Analyst to lead rating assignments for financial institutions (banks, asset managers). Requires strong communication, financial markets knowledge, and fluency in English and Spanish.

Integrate and validate avionics and systems architectures for unmanned aerial vehicles (UAVs). Develop system-level designs, wiring diagrams, and hardware specifications. Conduct system-level testing and ensure compliance with regulatory standards.

The Energy Management Strategy Analyst will assess, develop, and execute electricity market strategies for Battery Energy Storage Systems (BESS) and other energy assets. This role will monitor market trends, conduct in-depth market analysis, and collaborate with internal teams to align market analysis with project development and asset operations.

Penresa, a media and communication agency, seeks a Junior Sales Executive for a freelance contract. Responsibilities include identifying clients, scheduling meetings, negotiating branding opportunities, and ensuring client satisfaction.

The Quality Assurance & Equipment Validation Consultant will ensure compliance with Good Manufacturing Practices (GMP) through validation of facilities, equipment, and processes. Responsibilities include participating in quality assurance projects, internal audits, and qualification projects for various aspects of manufacturing.

Vehicle Sales Director to develop and execute sales strategy for the Spanish market. Requires 10+ years of automotive sales experience, including 5+ years in a senior leadership role. Experience building or scaling sales operations in European markets is preferred.

Senior Electronics Engineer to design, develop, integrate, and test high-speed subsystems. Requires Master's degree in Electronics Engineering, Telecommunication Engineering, or equivalent experience. Expertise in high-speed electronics design, ECAD software (Altium Designer preferred), and communication protocols (PCIe, GbE, DDR, CameraLink).

Manages EV after-sales technical support, quality control, and continuous improvement across authorized dealers and service partners. Provides technical guidance on EV systems and acts as an escalation point for complex issues. Establishes and executes quality control frameworks, analyzes warranty claims, and drives initiatives to enhance key quality KPIs.

Customer Service Manager to lead and develop a multilingual team supporting European customers. Define processes, monitor performance, and ensure a high-quality customer experience.

Case Owner (Spain) manages client activation, document collection, and administrative execution for Spain-based immigration cases. Ensures files are complete, organized, and ready for submission to Spanish authorities. Executes core administrative services including NIE/TIE coordination, padrón, Social Security registration, and bank account setup.

Store Manager to lead retail operations in Barcelona. Experience in retail or luxury fashion, team management, and customer service required. Must be able to analyze KPIs, manage budgets, and support other stores as needed.

Experienced IT Infrastructure Project Manager to lead and deliver complex infrastructure initiatives, including datacenter builds, Azure landing zones, and global network rollouts.

AI Engineer will design, build, and operate conversational and cognitive systems for an AI companion platform. Responsibilities include developing LLM-based capabilities, dialogue orchestration, memory management, safety guardrails, and evaluation frameworks. Requires strong software engineering experience in Python, hands-on experience with LLMs, and practical experience with RAG, embeddings, and vector databases.

Visual Merchandiser / Stylist & Trend Forecasting Specialist will develop and execute visual merchandising strategies across e-commerce, retail, and press. Responsibilities include collaborating with the Creative Director and Design Team on collection themes, building seasonal assortments, and styling product photography. The role requires a strong understanding of market trends, competitor activity, and consumer behavior.

Experienced DevOps Engineer to design, build, and maintain scalable cloud infrastructure on Azure. Responsibilities include automating infrastructure with Terraform, optimizing CI/CD pipelines with GitHub Actions, and ensuring infrastructure security and compliance. Requires 4+ years of experience in DevOps/Cloud Engineering with strong hands-on skills in Azure, Terraform, and GitHub Actions.