backend developer English-speaking jobs in Oviedo

This job is with Criteo, an inclusive employer and a member of myGwork – the largest global platform for the LGBTQ+ business community. Please do not contact the recruiter directly. What You'll Do Join our Internal IT department as a permanent member of the Core Finance Tribe, where you will work on a strategic Oracle Fusion ERP / EPM initiative ☁️.

Shape and optimize the product roadmap for a sports prediction gaming platform. Own product strategy across career progression, DFS-style gameplay, and social casino mechanics. Drive data-driven product development and collaborate with cross-functional teams.

Director of Sales & Marketing to lead sales and MICE team, develop strategic plans, manage pricing and distribution, and achieve company objectives.

Design, develop, and maintain scalable backend and frontend solutions using C# and Microsoft technologies. Contribute to architectural decisions and promote best practices. Write clean, efficient, well-documented code with strong unit and integration test coverage. Collaborate with cross-functional and remote teams to deliver high-quality software. Troubleshoot and resolve complex technical issues. Mentor and support junior developers.

Lead Engineer to design, develop, and maintain high-availability web applications for N26's internal operations. Responsibilities include architecting and building microservice applications using Java, Kotlin, and Spring Boot, integrating AI features, and mentoring team members. Requires experience with distributed systems, REST APIs, PostgreSQL, and CI/CD pipelines.

Lead end-to-end delivery of Conversational AI projects, including LLMs, Agentic AI, chatbots, and voicebots. Define project roadmaps, coordinate cross-functional teams, and ensure alignment with technical constraints and quality standards. Proven experience delivering LLM/Agentic AI/Conversational AI projects is required.

LI Production Manager Posted Today - Job Requisition ID: R10087740 Air Liquide in Spain was founded in 1909 and today is made up of a dynamic team working in industry and healthcare throughout the country. We offer gas, equipment and services for a variety of industries: oil and gas, automotive, metal fabrication, chemical, pharmaceutical, agricultural, food and beverage, and healthcare.

Technical Product Manager will provide technical support, build relationships with clients and third-party labs, and lead the sales team. Requires a bachelor's degree in a relevant field, project management experience, and strong communication skills.

Design Architect to lead projects from concept to detailed design for boutique hospitality assets. Requires proficiency in Revit, AutoCAD, SketchUp, and strong communication skills.

CENTIRO Consultant to manage implementation and delivery of IT solutions for new CMS logistic projects. Responsibilities include scope management, functional requirements definition, stakeholder management, and user acceptance testing.

Part-time Maintenance Assistant needed for holiday rental properties in the Greater Marbella Metropolitan Area. Responsibilities include routine property maintenance, responding to repair requests, and ensuring property functionality and appearance.

Account Manager responsible for visiting customers, developing relationships, identifying business opportunities, and promoting sales of construction machinery. Requires familiarity with the local market and construction machinery knowledge.

Solutions Architect specializing in Cloud Infrastructure and MLOps will design, architect, and implement high-performance cloud solutions for enterprise clients. Responsibilities include acting as a trusted technical advisor, running proofs of concept, and collaborating with customers to understand business requirements. Requires 5+ years of experience in a technical role, strong hands-on experience with Infrastructure as Code, Kubernetes, and Python, and a solid understanding of GPU computing for ML workloads. Fluency in French, Spanish, or Portuguese is required.

Drive revenue growth by advising prospective students on English learning solutions. Conduct online sales consultations, convert leads into contracts, and nurture student relationships. Manage student expectations, address concerns, and ensure a positive experience.

QC Analyst needed to analyze API, intermediate, and final samples using techniques like GC, HPLC, and TLC. Must have a FP II Chemistry or Chemical Degree and 2+ years of experience in analytical techniques and GMP/GLP regulations.

Manages financial accounting, ensuring effective delivery of financial and management reports to internal and external customers. Requires a Bachelor's degree in accounting/finance, 4-6 years of experience including 2 years in a senior role, and relevant certification (CIMA, CPA, ACCA, ACA, ICWA). Proficiency in Microsoft Office and fluency in Arabic and English are also required.

Manage multiple client projects, translating their needs into actionable requirements for technical teams. Serve as the primary point of contact, building relationships and ensuring on-time, within-budget delivery.

Senior Python Backend Engineer needed to modernize platform. Responsibilities include evolving existing Python applications, migrating SQL Server processes to Databricks, and designing cloud-native solutions in Azure. Requires 5+ years of experience as a backend engineer with strong Python, SQL, and cloud experience.

Payroll Specialist needed for freelance role in Madrid. Expert in Spanish labor law and tax compliance, managing payroll, and advising on complex labor inquiries. Requires 3-5 years experience, proficiency in payroll software, and advanced Excel skills.

Monitor real-time data, identify issues, and ensure timely escalation and follow-up in line with established processes. Collaborate with cross-functional teams to deliver consistent, high-quality service.