backend developer English-speaking jobs in Oviedo

Experienced transport professional to lead and expand road and rail operations across Spain. Responsible for service delivery, operational efficiency, commercial growth, and team leadership. Requires 12+ years in land transportation, 7+ years leading teams, and fluency in Spanish and English.

Designs and delivers technical solutions for energy storage systems, including BESS, PCS, and EMS components. Analyzes customer requirements, prepares technical documentation, and collaborates with cross-functional teams.

COMSER seeks a Qualification and Validation Technician to design, develop, and execute validation protocols for pharmaceutical equipment and processes. Must have a scientific-technical university education and full professional level English.

People & Culture Trainee will support the corporate People & Culture team in Europe, North Africa & Turkey. Responsibilities include managing job postings, screening applications, scheduling interviews, and collaborating on onboarding plans.

Digital Marketing Specialist to plan, execute, and optimize multi-channel digital marketing campaigns across platforms such as Google Ads, Meta Ads, and TikTok Ads. Will manage SEO/SEM efforts, oversee content creation, and track campaign performance. Requires +2 years of experience in digital marketing, proficiency in Google Ads, Meta Ads Manager, and SEO tools, and fluency in Spanish and English.

Regulatory Specialist needed for a multinational company in Spain. Responsibilities include monitoring legal acts, ensuring product compliance, developing product labels, and supervising documentation. Requires a Bachelor's degree in a relevant field, two years of experience in household product regulation, and high English proficiency.

Full Stack Node.js/MongoDB Engineer to develop and maintain web applications integrating AI solutions for financial institutions. Requires proficiency in Node.js, MongoDB, AI/ML models, and front-end frameworks.

Lead marketing efforts for innovative wellness products, developing and executing multi-channel campaigns. Create bilingual content and analyze campaign performance to optimize ROI. Collaborate with founders to boost brand visibility and scale presence in a global market.

EVO seeks Vehicle Engineers with a passion for teamwork to define vehicle architectures, integrate vehicle domains, and ensure alignment between mechanical, electrical, and fluid systems. Experience in heavy-duty vehicles and relevant tools is required.

Software Development Intern will participate in the digitalization and automation of business processes across departments. Responsibilities include designing, developing, and testing technological solutions, documenting processes, and presenting results.

Support the HR team in talent acquisition activities. Handle internship requests, job postings, and candidate communication. Ensure proper onboarding and provide support to interns.

IT Projects & Support Technician needed to deliver technical projects, provide hands-on support, and ensure reliable technology. Experience with AWS, Azure, Microsoft 365, networking, and business systems required. Fluent English and Spanish essential.

The M&A Senior Analyst / Junior Associate will assist in the execution of mergers and acquisitions, including drafting and reviewing transaction documents, supporting client meetings and negotiations, and performing financial modeling and valuation analysis.

Phone sales agent needed for new aparthotels in Madrid. Must have 1+ year of phone sales experience, excellent communication skills in Spanish and English, and be able to drive successful leasing.

CX Researcher will enable customer-centric evidence in international digital environments. They will plan and coordinate research, leverage team outcomes, synthesize and guide insights, and facilitate alignment.

AI Engineer will design, build, and operate AI models for a health tech platform that transforms medical laboratory data into actionable clinical insights. Responsibilities include building model pipelines, integrating LLMs, developing APIs, and ensuring system reliability. Requires a computer science background, software engineering experience, and expertise in machine learning systems.

Master's-level students in robotics, automation, or industrial engineering sought for part-time role. Responsibilities include calling factories to document palletizing processes, throughput, and product handling for R&D input. Must be comfortable with phone calls and have native fluency in one of: French, German, Spanish, Italian, or English.

Manage day-to-day bookkeeping, journal entries, and reconciliations. Support monthly, quarterly, and annual closings. Oversee accounts payable, receivable, and employee expenses. Ensure accurate coding of accounting entries and maintain organized financial records.

Business Development Representative to drive outbound prospecting, qualify leads, and exceed KPIs in the UKI market. Must be proficient in English, tech-savvy, and comfortable with cold calling, email, and LinkedIn.

Operations Specialist will configure Dynamics 365 Finance and Operations to meet business needs. Responsibilities include conducting workshops, developing functional design documents, collaborating with technical teams, and providing user training and support. Must have experience implementing Dynamics 365 F&O, particularly Procurement & Sourcing, Inventory Management, and Supply Chain modules.