backend developer English-speaking jobs in Oviedo

The CEO Assistant will support the CEO based in London with local business operations in Barcelona, including finance, supply chain, administration, and HR. The role requires fluency in Chinese Mandarin, Spanish, and English, and 8-10 years of experience in accounting and business operations.

Manage strategic customer accounts and develop sales strategies to achieve company targets. Proven sales experience in the food industry and knowledge of fats and oils applications required.

TransPerfect's Digital department seeks an experienced Regional SEO Team Lead to oversee SEO services (Technical, On-Page, AIO/GEO/LLM) across a key global region (Americas & LATAM OR EMEA & APAC). This senior leadership role ensures high-quality delivery within global SEO frameworks, drives innovation, and maintains strong commercial health across client engagements. The Regional SEO Team Lead reports to the Global Director of Digital Strategy, bridging strategic direction with regional execution.

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.

Develops high-quality performance materials for footwear, apparel, and accessories. Collaborates with design, sourcing, and development teams to build material libraries and source components. Ensures materials meet quality standards and manages the materials budget and library.

React Developer will design, develop, and deploy scalable front-end solutions. Responsibilities include building responsive user interfaces, collaborating with designers, and ensuring accessibility standards are met. Must have 5 years of experience as a React Developer with strong JavaScript and Next.js skills.

Salesforce Administrator needed to manage and maintain the Salesforce platform. Responsibilities include designing and implementing Flows, creating reports and dashboards, and managing user accounts. Requires 1 year of Salesforce Administrator experience, proficiency in Spanish and Catalan, and English at a B2 level or higher.

Engineering Project Manager will lead projects for customers, ensuring completion within scope, schedule, and budget. Responsibilities include developing proposals, managing project documentation, and collaborating with stakeholders. Requires a B.S. in Electrical Engineering, 5+ years of project management experience, 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 Commercial MaaS Senior will develop and manage business strategies, build partnerships, and drive the growth of MaaS solutions. Responsibilities include analyzing market trends, identifying opportunities, negotiating contracts, and collaborating with teams to deliver innovative mobility services.

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.

Junior C Programmer to develop and maintain software components for high-performance networking over optical access technologies.

Project Quality Engineer ensures quality from engineering to client delivery. Responsibilities include monitoring development processes, managing quality planning and reviews, and coordinating quality activities. Requires an Engineer degree, 3-5 years quality experience, APQP knowledge, and advanced quality tools proficiency.

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.

Innovation Manager will partner with the Innovation Director to execute and scale innovation initiatives in Spain and internationally. This role focuses on translating innovation strategy into tangible products, projects, and programs, leveraging AI and digital tools to solve business challenges.

Lead Frontend Software Engineer will develop and improve the Angular frontend platform, collaborating with engineers, designers, and product owners. Responsibilities include implementing new features, ensuring accessibility and performance, and contributing to the design system. Requires 7+ years of Angular experience, familiarity with NX monorepo, Storybook, and Playwright/Cypress.

Senior R&D Scientist or Engineer to develop next-generation sensing, optoelectronic, and AI-enabled technologies. PhD in Physics, Optics, Electronics, or Telecommunications Engineering required. Expertise in sensors, photonics, electronics, and regulated environments is essential.

Senior Data Scientist will define and execute data science strategy, lead model development, and analyze complex datasets to drive product recommendations. Requires strong experience in data science, data engineering, and machine learning.

Project Manager for international football camps, tours, and programs. Leads on-site camp operations, manages logistics, and ensures smooth execution. Requires strong operational skills, excellent English, and experience in project or event management.

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.