backend developer English-speaking jobs in Oviedo

Operations Research Engineer will design and implement optimization algorithms for route planning, inventory management, and supply chain scheduling in the animal feed sector.

Provides support in the development of embedded firmware OS according to standards and customer specifications. Analyzes and designs features for security embedded systems and implements firmware code. Tests firmware code and analyzes issues on released products.

Tangent is seeking a passionate Customer Success Manager for a leading SaaS platform in Barcelona. You will build relationships with clients, understand their needs, and ensure they maximize their investment in the platform.

LEET Security seeks a Sales Manager to drive sales activities across Spain & Portugal. The role involves identifying new business opportunities, managing leads, and closing deals. Requires 5-7 years of sales experience, cybersecurity market knowledge, and the ability to negotiate with senior-level contacts.

Senior Software Engineer needed for a fixed-term contract until June 2026. Develop, deploy, and maintain production-grade software systems across frontend and backend. Collaborate with software, DevOps, ML, and research teams.

Part-time Receptionist needed for a growing aparthotel company. The Guest Services Advisor will be the primary point of contact for guests, providing exceptional customer service and ensuring a seamless stay.

Senior Customer Support Agent needed for our European team. Provide technical and non-technical support to customers via chat (Intercom) in English and German. Must have 2+ years of customer support experience and fluency in English and German.

Ensures correct preparation, review, and management of technical and regulatory documentation for HVAC equipment, guaranteeing compliance with international standards and internal quality.

Provides technical support for employees, manages IT assets, assists with network and system maintenance, and ensures access control and information security.

Accounting and Reporting Controller needed for Finance and Administration team. Leads monthly and quarterly closing processes, drives ERP reporting implementation, and prepares financial statements. Requires a Bachelor's degree in a related field, 2+ years of audit experience, and strong knowledge of Spanish GAAP.

Own core gameplay design, loops, and mechanics for new casual mobile games. Collaborate with engineers and designers to build, test, and refine mechanics. Iterate quickly based on data and work within WildCard's model for scalable success. Must have 3+ years in Product Management or Game Design with a proven track record of designing and optimizing core gameplay.

Senior Contract Management Analyst manages commercial contracts for renewable energy assets in Iberia and internationally. Responsibilities include contract lifecycle management, compliance oversight, revenue forecasting, and stakeholder coordination.

Junior Creative to develop and execute influencer marketing campaigns for diverse clients across various sectors. Requires creative concept development, cross-functional collaboration, and proficiency in design tools.

Drive business development and new revenue for a hospitality SaaS company in the DACH region. Own the full sales cycle, focusing on German-speaking hospitality customers. Fluency in German is required. Proven sales experience selling into hospitality businesses is essential.

Support & Implementation Specialist for international software development company. Implement, configure, and support digital solutions for government clients. 3+ years of experience in software support, implementation, or technical consultancy. Strong SQL and .NET knowledge required. Fluent English.

Software Development Engineer needed for contract role in Madrid, Spain. Diagnose and resolve defects, perform debugging, and create technical documentation. Experience with Java, cloud-native technologies (Docker, Kubernetes, microservices), and Agile Scrum is required.

Product Management Consultant will translate institutional requirements into executable work, coordinate development across agile teams, manage the product backlog, and ensure seamless delivery of a payment infrastructure platform.

Experienced multi-site operator needed to lead end-to-end operational performance for a growing food brand in Spain. This senior role combines strategic leadership with practical execution, focusing on commercial performance, operational consistency, customer experience, talent development, and growth initiatives.

Thing or Two seeks a Junior Business Development Manager to identify, negotiate, and close deals with web brands, app developers, and suppliers. Responsibilities include managing the sales cycle, prospecting for new business, meeting KPIs, and collaborating with teams to achieve company objectives.

C# Developer to implement business logic and interfaces for Dynamics 365 CRM using C#, TypeScript, and ASP.NET Core. Integrate existing systems with Azure Service Bus and Logic Apps. Collaborate with a team in Barcelona and Switzerland.