backend developer English-speaking jobs in Castile-La Mancha

Lead marketing efforts for innovative wellness products, developing and executing multi-channel campaigns. Create bilingual content and analyze campaign performance to optimize ROI. Collaborate with founders to boost brand visibility and scale presence in a global market.

Senior PHP & Full-Stack Engineer will develop and maintain product features, collaborate with cross-functional teams, and ensure applications meet high standards. Requires 10+ years of experience, strong PHP and Yii Framework skills, and experience with Ember.js, TypeScript, and Tailwind CSS.

Develops, maintains, and optimizes quotation tools for the solar tracking business. Collaborates with regional pre-sales teams to gather requirements and implement tool updates. Provides training and support to ensure tool proficiency across all departments. Analyzes tool usage data to identify areas for improvement and provide recommendations for process optimization.

Sr. Consultant to support industrial and aerospace projects in Castilla-la-Mancha. Focus on embedding human and organizational factors into the design, assessment, and improvement of technical and organizational systems.

AI Engineer will design, build, and operate AI models for a health tech platform that transforms medical laboratory data into actionable clinical insights. Responsibilities include building model pipelines, integrating LLMs, developing APIs, and ensuring system reliability. Requires a computer science background, software engineering experience, and expertise in machine learning systems.

Senior-level Career Services & Talent Development Officer to oversee internship program management, student support, and partner engagement. Responsibilities include coordinating internship placements, providing career coaching, organizing events, and tracking program outcomes. Requires 3+ years of experience in career services, event management, or a related field. Fluency in English and basic Spanish required.

Lead the company's full monetization strategy, including ad revenue optimization, demand partnerships, and product-driven yield performance. Translate data into decisions that drive revenue growth while shaping the platform's monetization of mobile traffic. Manage and grow a cross-functional team of monetization, data, and product specialists.

Customer Response Agent needed for a Company Airline. Provide timely information and solutions to customers experiencing disruptions due to operational challenges. Offer airport alternatives, assist with bookings, and manage sensitive cases. Must have previous customer service experience, excellent communication skills in English, and proficiency in Italian or French.

As a Payments Integrations Analyst, you will analyze external partner APIs, define requirements, and design integration flows. You will collaborate with product, compliance, engineering, and external partners to improve payment network performance and reliability.

Senior Pentester to join the Offensive Security Center of Expertise. Conduct penetration tests on applications, infrastructure, and systems. Evaluate and report on vulnerabilities, providing remediation guidance. Collaborate with development and infrastructure teams to improve security posture. Mentor team members and contribute to testing methodologies and tools.

Senior IT Application Engineer to drive the transition from SAP BW to a Microsoft Fabric-based data platform. Design, develop, and optimize end-to-end data solutions using Microsoft Fabric, build data pipelines, and collaborate with cross-functional teams. Requires several years of experience in Data Engineering with expertise in Microsoft Fabric, Azure Synapse, Data Factory, Lakehouse, Dataflows, and related components.

Manages and optimizes purchasing activities for HVAC products, ensuring efficient supply, cost competitiveness, and quality. Negotiates with suppliers, monitors market trends, and controls inventory. Requires a Bachelor's degree, experience in procurement, fluency in Spanish and English, and advanced Excel skills.

Mechanical Design Engineer needed for R&D Center. Responsibilities include designing non-standard automated systems for fruit and vegetable sorting and processing. Requires 10+ years of experience in mechanical design, proficiency in CAD software (SolidWorks, AutoCAD), and strong knowledge of mechanical principles.

Business Development Representative to drive outbound prospecting, qualify leads, and exceed KPIs in the UKI market. Must be proficient in English, tech-savvy, and comfortable with cold calling, email, and LinkedIn.

Senior Regulatory Affairs professional will ensure Sateliot's compliance with regulatory requirements across the Americas and APAC regions. This role requires expertise in regulatory frameworks, analytical skills, and collaboration with regulatory agencies and stakeholders. Responsibilities include developing regulatory strategies, securing licenses and authorizations, and advocating for the company's interests.

Lead the technical vision and roadmap for AIOps, building and scaling AI reliability and operations at an enterprise scale.

Phone sales agent needed for new aparthotels in Madrid. Must have 1+ year of phone sales experience, excellent communication skills in Spanish and English, and be able to drive successful leasing.

A rapidly growing company seeks a Junior/Business Development Manager to support expansion across Belgium. The role focuses on AC EV charging solutions for domestic applications and will vary based on experience. Responsibilities include developing relationships with partners, driving sales, and providing product support.

As a Product Specialist, you will ensure the smooth operation, continuous improvement, and value delivery of live IT products. You will support the Product Owner in backlog management, prioritization, and stakeholder communication. You will also identify opportunities for product optimization and ensure alignment with business needs.

Build and execute quote proposals for parts and billable services. Partner with commercial and fulfillment teams to understand availability, lead times, costs, and prices. Communicate with end-users and work to increase market capture and Key Account performance.