backend developer English-speaking jobs in Oviedo

Electronic Engineer to join a new-generation battery startup developing sodium-ion storage systems.

Leads and develops a team of Data Operators within Helvetia Baloise Asset Management, ensuring high-quality, reliable data delivery across key domains. Oversees data management processes, acts as a central coordination point between stakeholders, and drives data-driven decision-making.

Estimating Engineer for utility-scale PV and BESS projects. Prepares EPC cost estimates, develops CAPEX breakdowns, and coordinates with engineering, procurement, and construction teams. Requires 3+ years of experience in EPC estimating for utility-scale PV projects (≥50 MW) and experience with BESS projects is highly desirable.

Lead the engineering strategy for a global financial services organization's custom-built platforms and core systems. Build and manage a high-performing team, delivering secure, scalable financial solutions.

Senior Project Control Engineer needed for complex upstream oil & gas field development projects. Lead planning, scheduling, cost control, and reporting. Minimum 10 years of experience in upstream Oil & Gas project development required.

Execute the On Trade commercial strategy in a designated area to generate volume and profitability in strategic clients. Build strong relationships with decision-makers at the point of sale and ensure direct and continuous coverage of the assigned portfolio. Identify opportunities to secure incremental sales and execute brilliant activations and events. Manage commercial relationships between Diageo and the hospitality POS managers. Drive sales and visibility of brands in POS, aiming to increase product rotation in the market.

Leads strategy, partnerships, and user growth initiatives for mobile games in the Spanish market. Manages game partner operations, including planning, coordination, and co-marketing campaigns. Tracks game performance, analyzes data, and recommends improvements.

Description Iberojet, the airline of Ávoris, is looking to hire Cabin Crew members for its Madrid base to carry out the following duties. Key Responsibilities Attend the pre-flight briefing conducted by the purser or captain. Check safety and emergency equipment. Report any anomalies to the purser. Conduct safety demonstrations and ensure proper seating and seatbelt compliance.

Leads HSE operations and activities in a manufacturing plant, ensuring a safe working environment and compliance with legal requirements. Develops and implements HSE programs, manages audits, and investigates accidents and incidents. Requires a university degree in Industrial Engineering or similar, a Master in Health and Safety, and at least 5 years of experience in a similar role.

Lead the development and execution of an AI-powered content production pipeline, from script to distribution. Produce and iterate on high-quality microdramas, experiment with generative video tools, and analyze performance to optimize output. Define the creative direction and visual style for a proprietary storytelling universe.

Provide advanced technical support for Digital Plant solutions through various channels. Troubleshoot complex automation, communication, and digital architectures. Collaborate with internal teams to ensure effective resolutions. Contribute to knowledge base articles and technical documentation. Stay updated on Digital Plant technologies and contribute feedback to improve products.

Atelier Madre seeks a detail-oriented artisan to craft leather bags and assist customers in our Barcelona store. Must be trustworthy, efficient, and have a passion for quality craftsmanship.

Salesforce Marketing Cloud Consultant (Business Analyst) needed to provide business analysis services for clients. Evaluates business processes, develops solutions, and collaborates with stakeholders and developers. Requires 2+ years of Salesforce Marketing Automation experience, 1+ Salesforce certification, and strong communication and analytical skills.

The Product & Site Coordinator bridges product strategy and on-site execution for casino games, promotions, and content. This role manages provider relationships, coordinates launches and promotions, and optimizes product display.

The Head of Legal will build and lead the legal function for a global technology company, focusing on intellectual property strategy, platform risk, and regulatory compliance. The role requires deep expertise in trademarks, copyright, platform enforcement, and experience operating across U.S. and European legal environments.

Lead a team of 5 Financial Risk professionals ensuring regulatory compliant risk oversight, liquidity, and recovery frameworks for BME Clearing. Drive automation and optimization of risk processes.

Manages and implements special processes for railway rolling stock, ensuring compliance with standards and regulations. Defines, qualifies, and controls welding, painting, bonding processes, and related equipment. Provides technical support and participates in process improvements. Requires an engineering degree and relevant certifications. Minimum 3 years of experience in a similar role.

Senior .NET Engineer with 7+ years of experience sought to design and implement backend services in C#/.NET (ASP.NET Core) for a critical, audited fintech platform. Expertise in Azure, IaC, and distributed architectures is required.

The HR Payroll Specialist will manage payroll processes for various companies, including calculating variable elements, social security contributions, and tax deductions. Responsibilities also include personnel administration tasks, budget management, employee benefits administration, and managing the employee portal. The role requires interaction with suppliers, auditors, and official organizations.

Legal Counsel needed to support strategic growth. Draft, review, and analyze contracts, provide legal advice, and coordinate with external lawyers. Requires 3-5 years banking experience, Spanish Law degree, and fluency in English.