backend developer English-speaking jobs in Castile-La Mancha

Iqana is seeking a Quantitative AI/ML Engineer to lead research, development, and deployment of advanced machine learning models for algorithmic trading strategies and risk management. You will design predictive models, optimize trading logic, and ensure performance and explainability. This role requires expertise in Python, data science libraries, ML frameworks, and cloud computing.

Coordinate and supervise all hotel departments, ensuring optimal functioning and compliance with objectives and quality standards. Manage the hotel's budget, analyze market trends, and ensure customer satisfaction.

Internship focused on market expansion and business development in Italy. Responsibilities include identifying partners, developing a local strategy, and managing relationships. Must have experience in sales, consulting, or business development and knowledge of the Italian student ecosystem. Fluent in Italian and English required.

Designs, implements, and productionizes AI systems for enterprise use cases. Focuses on building reliable AI workflows, developing experimentation frameworks, and optimizing language models.

Leads international sales strategy, market expansion, and network development for a rapidly growing dental firm. Requires 5-10+ years of international sales management experience, fluency in English, and proven leadership. Reports directly to the CEO.

Leads operational lifecycle of connected services and digital features across EU markets. Manages digital feature launches, ensures operational readiness, and monitors key performance indicators. Collaborates with HQ teams on digital rollouts and supports dealer enablement initiatives. Requires 3+ years of experience in connected services, digital product operations, or automotive digital ecosystem roles.

As a Web Project Analyst, you will define and coordinate the technical evolution of Camper's web platforms, ensuring scalability and alignment with business strategies. You will translate business requirements into technical specifications, manage project lifecycles, and oversee testing processes.

This freelance, remote position involves data analysis for digital map enhancement. Tasks include research, evaluation, and verification of data accuracy. Applicants must be fluent in Spanish, residents of Spain for the past two years, and have familiarity with Spanish culture and current affairs.

As a Sales Executive, you will acquire merchants and B2B partners to adopt a new shopping card payment solution. You will manage a sales pipeline, track progress, and report to the Partnerships Manager.

Develop AI-based solutions for predictive maintenance, fault detection, and performance analysis within aerospace and defense programs. Analyze operational and maintenance data to improve life-cycle support strategies. Collaborate with ILS and engineering teams to transform data into actionable insights.

Receptionist needed to manage daily operations, provide exceptional customer service, and handle student inquiries and complaints. Responsibilities include check-in/check-out procedures, managing resident requests, and assisting with administrative tasks.

Data Analyst to support AI-driven initiatives. Design customer journey tracking, analyze data, create dashboards, and generate insights. Requires 3-5 years of experience in data analytics, proficiency in SQL, Python, and Tableau, and strong communication skills. Experience with product analytics and AI/ML is a plus.

Content Strategist will develop and execute content strategy, write various content formats, and optimize for SEO. Requires 3-5 years of content experience, strong SEO expertise, and experience using AI tools for content creation.

Leads the development and execution of XFuel's fuel-related sustainability, regulatory compliance, and lifecycle impact strategy. Ensures fuel products meet EU and international regulations, certification schemes, and carbon performance standards.

QA Engineer will ensure product quality through manual and automated testing. Responsibilities include validating user stories, conducting exploratory testing, monitoring production bugs, and participating in the implementation and maintenance of automated tests. Requires experience with manual and automated testing, JavaScript-based testing frameworks (Cypress or similar), API testing using Postman, and GitLab deployment pipelines. Fluent English required.

Maintains high-performance PostgreSQL databases, ensuring reliability, availability, and scalability. Designs, implements, and optimizes database solutions, collaborating with development teams and managing security controls.

Design and orchestrate AI-powered post-sales journeys, personalize customer experiences, and automate workflows. Build, maintain, and monitor automations integrated with CRM, the Spoki platform, and customer stack tools.

NLP & Document Intelligence Engineer will develop AI-driven document processing solutions for the life sciences domain. Responsibilities include processing scientific, clinical, and regulatory documents, applying NLP techniques for entity and relationship extraction, and building production-ready NLP pipelines on Azure.

QA Intern to join Product team ensuring quality of web applications, mobile apps, and backoffice tools through manual testing. Collaborate with product managers, developers, and stakeholders to validate new developments and catch issues early.

Senior Software Engineer will design, implement, and iterate on features for the Expert Retention team, using React, .NET, PostgreSQL, and AWS. The role involves collaborating with Product and Data to translate business goals into solutions and leveraging data to improve expert retention and engagement.