backend developer English-speaking jobs in Castile-La Mancha

Develop intelligent sensor inks for food packaging, from formulation to industrial validation. Responsibilities include synthesis, characterization, printing trials, and collaboration with data and computer vision teams.

ESSP seeks a Performance Tools Manager to ensure the smooth operation of mission performance tools. Responsibilities include maintaining tools, managing obsolescence, developing new software, and coordinating a team of four. Requires 5+ years of GNSS experience and 3+ years in software and tool development.

Senior Optimization Engineer needed to architect and deploy advanced nonlinear optimization engines. Responsibilities include designing custom algorithms, translating multi-physics phenomena into optimization problems, and customizing solver behaviors. Requires a PhD in a relevant field and deep knowledge of nonlinear optimization theory, programming languages (Julia, C++, Python), and large-scale solvers.

Customer Service Agents provide support to customers via phone, email, chat, and other channels. They resolve issues, ensure customer satisfaction, and contribute to service quality improvement. Native French speakers with 3+ years of customer service experience are required.

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.

Designs, configures, and implements scalable Oracle Fusion ERP solutions aligning with global business processes and local compliance needs. Serves as a senior techno-functional expert, ensuring end-to-end process alignment across SGS's corporate IT applications. Partners with business stakeholders to define requirements, anticipate system challenges, and guide solution design and delivery. Oversees software development activities, validates effort estimates, reviews third-party proposals, and coordinates development phases. Ensures solutions are standardized, fit-for-purpose, and compliant with SGS guidelines and industry best practices.

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.

As a Test Development Engineer, you will design, develop, and implement Automated Test Equipment (ATE) and test programs to ensure product quality. You will specialize in either hardware or software, focusing on test architecture, development, and integration. Responsibilities include solution architecture, end-to-end development, strategic planning, debugging, and technical representation.

Lead technology strategy and delivery for a high-growth aviation technology scale-up. Deep technical expertise and enterprise delivery experience required. Proven track record in rapidly scaling product or platform businesses, with aviation technology experience essential.

Full-time hybrid Night Drinks Host for Drink Home Ibiza, a premium beverage delivery service. Responsibilities include taking and managing drink orders, ensuring timely delivery, and assisting customers via WhatsApp, calls, and app.

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.

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.

SAP Basis Consultant/Administrator needed for full-time, permanent position. Responsibilities include system administration, database management, and network security. Expertise in SAP HANA, NetWeaver, ERP 6.0 (ECC), Linux, and Oracle databases required. Strong problem-solving and communication skills are essential. Familiarity with AWS is a plus.

Experienced SAP SuccessFactors Consultant needed to lead implementations, optimizations, and support of the global platform.

The Engineering Manager leads and develops a team of 20 engineers, ensuring the execution of multiple concurrent R&D projects. Responsibilities include project planning, resource allocation, team management, and communication with customers and stakeholders.

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.

Manages daily HR operations including recruitment, payroll, employee relations, onboarding, training, and compliance. Ensures HR processes are consistent and compliant. Supports the COO in maintaining a positive and efficient work environment.

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.

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.

Experienced Area Manager needed to drive commercial growth in the European Textile & Flat Lamination markets. Develop sales plans, manage commercial portfolios, and build customer relationships. Requires 5-10 years of experience in the industry, strong analytical skills, and fluency in English.