backend developer English-speaking jobs in Castile-La Mancha

IT Business Partner will oversee digital products, platforms, and processes for B2C environments, brand and corporate websites, D2C channels, and eCommerce initiatives. Collaborate with Product Owners and development teams to enhance IT platforms and ensure a high-quality consumer experience.

Provides on-site technical support for desktop and laptop systems, including troubleshooting hardware, software, and connectivity issues. Manages the full lifecycle of desktop devices and delivers support using tools such as SCCM, Intune, and ServiceNow. Ensures compliance with security protocols and offers VIP support during critical escalations.

Develop and manage strategic relationships with key technology integrators in Spain and Portugal. Drive indirect sales and business growth by identifying co-selling, cross-selling, and joint solution development opportunities.

Marketing Copywriter will translate brand and marketing strategy into clear, compelling copy across channels. Responsibilities include writing and editing website pages, campaigns, emails, and product launches. Must have 3-5 years experience as a Marketing Copywriter in tech, SaaS, or agency environments and a portfolio demonstrating strong execution across multiple formats.

Junior Software Developer to assist in the development and maintenance of internal applications. Support IT team with programming, testing, and documentation. Requires 1 year of experience and knowledge of C#, Java, HTML, CSS, Javascript, SQL, and Git. Interest in ERP systems is valued.

Junior Sales Engineer to support global sales of fiber lasers and solutions. Develop customer relationships, advise on technical requirements, and participate in problem solving. Requires a technical background in telecommunications, physics, or industrial engineering with a specialization in photonics. Fluent English and residence in Valencia province or near.

Sales Assistant to contribute to store turnover and customer satisfaction. Achieve sales goals, present products, identify customer needs, and build customer loyalty. Experience in luxury sales and customer service required. Fluent Spanish and English.

Enterprise Architect needed for a multinational leader in corporate and investment banking. Define target architecture, principles, and roadmaps for client-facing channels. Ensure cross-domain and cross-regional alignment. Drive adoption of shared capabilities and provide architectural leadership. Extensive experience in enterprise and solution architecture within complex financial environments required. Strong understanding of CIB domains including Markets & Trading, Payments, Cash Management, Trade Finance and Client Onboarding/KYC.

Project Manager needed for a multinational company specializing in railway electronics manufacturing. Manage multiple technical projects, ensuring on-time, on-budget delivery. Strong English and French required.

Provides first-line IT support for Business Central operations in the EMEA West region. Resolves technical issues and delivers training on IT applications. Supports data management, analysis, and reporting.

Designs and implements telecom solutions for voice and data domains (4G/5G and VoLTE) in Spain. Manages projects, reports to management and technical director, and ensures customer satisfaction. Requires a Master's or Bachelor's degree in Telecommunications or Computer Science, fluency in Spanish and English, and experience in core NFV voice or data projects.

Postdoctoral Researcher position at CIC biomaGUNE, funded by the BREATH MSCA Postdoctoral Program. Project focuses on host-pathogen interactions, bacterial phenotype analysis, and molecular reconstitution.

Manages liquidity, financing processes, banking relationships, and financial risks for Exus Renewables. Supports business operations to ensure financial stability and execution of commercial activities globally.

Design, implement, and deploy deep reinforcement learning algorithms for industrial robots. Optimize training pipelines and productionize algorithms in PyTorch. Collaborate with leadership to align technology with business goals.

Extraordinary seeks a Partnerships & Business Development Intern to help grow and manage partner relationships. The role involves identifying and reaching out to potential partners, building relationships, and supporting event execution.

Provides administrative support for the Madrid office, manages office supplies, and assists with HR functions. Supports merchant services by processing and distributing forms. Organizes meetings, travel, and events. Requires fluency in English, a bachelor's degree, and customer service experience.

Provides administrative support to a team of Partners and Directors in the financial services sector. Manages calendars, coordinates meetings, arranges travel, and maintains client records. Requires fluency in English and Spanish (C1 level) and proficiency in standard office applications. Minimum 3-4 years of experience as an Executive Assistant is required.

Mechanical Engineer Assistant Intern will support the Technical & Construction Team in resolving and developing mechanical-related activities. Assist with mechanical related technical analysis and procurement. Support preparing technical reports and documentation. Bachelor's degree in Mechanical or Industrial Engineering required. Advanced English and Spanish required.

Sales Advisor needed for residential developments in Fuengirola-Mijas. Manage the full sales cycle, conduct property presentations, and provide excellent customer service. Proven sales experience, strong negotiation skills, and fluency in Spanish and English are required.

Experienced Sales Manager to lead and manage a real estate team in Marbella. Minimum 5 years of proven experience in real estate sales management, specifically in the Marbella market. Fluent English required, Spanish is advantageous.