backend developer English-speaking jobs in Oviedo

La Salle Campus Barcelona seeks an International Business Developer to drive undergraduate recruitment by developing and managing international partnerships, designing recruitment strategies, and analyzing market trends.

The Chief Operating Officer will lead the scaling and professionalization of Almond Real Estate's operations, ensuring operational excellence in a fast-growing environment. The COO will review, improve, and automate core processes to build strong foundations for sustainable growth.

Business Analytics Trainee will participate in decision-making for a growing international business. Responsibilities include corporate reporting, analysis of key indicators, and budgeting.

Customer Service Assistant needed to provide support via email, WhatsApp, and Instagram. Process orders, handle returns, and address customer inquiries. Must have previous customer service experience, fluency in English and Spanish, and strong communication skills.

Data Architect & MarTech Expert needed for a full-time, long-term project. Manage data flows between Relay42 and Salesforce Marketing Cloud, ensuring seamless integration and audience segmentation. Expertise in Relay42, Salesforce Marketing Cloud, SQL, and Google Cloud Platform required.

Supports Relationship Managers in fulfilling member requests, focusing on booking execution and documentation. Assists with researching luxury objects and experiences. Requires strong organizational skills, luxury industry knowledge, and fluency in Russian and English.

Public Tender and Customer Service Specialist needed for multilingual team in Barcelona. Responsibilities include tender quote creation, order management, and resolving customer issues throughout the quote to cash process. Requires native-level German, 2+ years of customer service experience, and strong communication and problem-solving skills.

The Corporate PR & Comms Manager EMEA will oversee the company's external PR strategy across Europe, enhancing visibility, safeguarding reputation, and ensuring consistent messaging. Responsibilities include developing and implementing communication plans, managing media relations, and providing strategic counsel to spokespeople.

Provides administrative, operational, and organizational support to the General Manager and management team. Prepares documentation, manages schedules, and tracks tasks. Requires experience in administrative roles, proficiency with office tools, and fluency in English and Spanish.

Customer Success Manager to lead operations in Valencia, Spain. Manage a team of specialists, define customer success strategies, and collaborate cross-functionally to drive client satisfaction and retention. Requires 5-7 years of experience in Customer Success, 2+ years of team management, and proficiency in Italian and English.

Clinical Team Lead will oversee clinical monitoring and site management activities across multiple countries. Responsibilities include training CRAs, ensuring protocol and regulatory adherence, and managing vendor operations.

Senior Backend Developer for a contract role (8-12 months) with a day rate of €350-€380. Design, develop, and maintain backend services using Go, contributing to service architecture and scalability.

Cloud Platform Engineer will design, implement, and optimize Azure infrastructure, CI/CD pipelines, and deployment processes for enterprise applications.

SMC Corporation seeks a Project Engineer IT (Project Manager) for its European Marketing Center in Vitoria. The role involves defining project scope, developing project plans, managing third parties, and ensuring on-time, on-budget project delivery. Experience with web application programming (JAVA preferred) and UNIX/LINUX is valued.

Azure Cloud Architect will design, implement, and manage Azure platforms across multiple subscriptions and environments. Responsibilities include architecting the Azure hub-and-spoke model, implementing landing zones and Azure governance, and ensuring security and compliance. Experience with infrastructure as code, automation, and CI/CD is required. Strong communication skills in English are essential.

Senior Full Stack Developer needed for enterprise application development using Microsoft technologies. Responsibilities include design, development, and maintenance of applications, database optimization, and collaboration with multidisciplinary teams.

Junior Scientist/Lab Technician will prepare analytical batches, evaluate results, and support the Study Director in bioanalytical studies. Requires a PhD, MSc, or BSc in biology or related field and 1+ year of experience in bioanalytical laboratories with ELISA, MSD, or similar techniques.

CELANESE is seeking driven, curious individuals for the 2026 Employment Forum in Gijón. We are looking for talent in Human Resources, VAT, Treasury, Accounting, Product Stewardship, and Corporate Finance. Degrees in Business Administration, Economics, Data Analytics, or Artificial Intelligence are valued.

Sales Support Administrator to provide administrative support to the sales team, including preparing meeting materials, assisting with client proposals, and maintaining accurate client records.

Provide technical assistance for clean energy and climate-related infrastructure projects in developing countries. Experience in procurement and contract management for infrastructure projects, including FIDIC contract conditions, is required.