backend developer English-speaking jobs in Extremadura

Senior Biostatistician Consultant will lead projects including ITC, Network Meta-Analysis, clinical trial data analysis, and Real World Evidence studies. Responsibilities include interacting with clients, identifying methodological solutions, leading project implementation, and providing management and technical support to team members. Requires an advanced degree in Statistics, Biostatistics, or Epidemiology, 4+ years of relevant experience, proficiency in R or SAS, and strong knowledge of statistical methods.

Senior QA Technologist will lead quality investigations, process validation, and manufacturing control reviews. Experience with GFSI standards, HACCP, TACCP, and VACCP is required. Must have strong analytical and communication skills and be fluent in Spanish.

Validate vehicle performance across various development stages, including dynamics, NVH, safety, durability, powertrain, and emissions. Define and execute test plans, analyze results, and collaborate with engineering teams to ensure performance targets are met.

AI Engineer to design, build, and scale Generative AI solutions and intelligent agentic systems. Requires 3+ years of experience in Applied AI/Machine Learning, strong Software Engineering skills (Python preferred), and hands-on experience with GenAI applications, RAG pipelines, and agent-based systems.

Freelance technical translator needed for French to English (FRàEN) translations of technical documentation, including aircraft maintenance manuals and industrial installation instructions. Experience with TRADOS software and technical translation is required.

Executive Chef to lead culinary strategy across four restaurants, breakfast, in-room dining, and banqueting at a luxury resort. Oversee daily kitchen operations, menu innovation, and team development. Requires 3-5 years experience as Executive Chef or Senior Executive Sous Chef in a similar environment.

Senior Electrical Engineer to plan and design water treatment solutions for Data Centre projects. Experience in industrial projects, especially Oil & Gas, energy, or water treatment required. Knowledge of international standards (IEC, UL, NFPA) and CAD tools (AutoCAD Electrical, EPLAN P8) essential. Minimum English B2 level required.

Key Account Manager will drive sales goals by promoting company products to healthcare institutions and key customers. Responsibilities include building relationships with stakeholders, implementing marketing strategies, and monitoring account performance.

Cloud Data Engineer with 5+ years of experience designing, developing, and deploying data pipelines on Google Cloud Platform. Expertise in BigQuery, SQL, data ingestion, data tokenization, and Airflow. Fluency in English and Spanish required.

Experienced Electrical Engineer (PMC) needed for steelmaking project. Oversee electrical engineering, ensure compliance with standards, and coordinate with EPC/EPCM partners and stakeholders. Lead 3D model coordination and monitor project progress.

Lead the production cycle of complex multi-channel campaigns (Emailing & Landing Pages) at scale. Coordinate a multifunctional team to ensure deliveries meet strict SLAs, managing segmentations, lead workflows, and automations. Act as the primary point of contact for Regional PMMs, auditing production metrics and ensuring top-tier data quality.

MAKE seeks a Community & Social Media Manager to build and manage online communities and social media presence. Responsibilities include creating and managing content, engaging with creators, and analyzing social media performance. The ideal candidate has experience managing social channels, building online communities, and understanding creator trends.

The Middle Office Intern will support the Energy Management and Trading team in monitoring, controlling, and analyzing trading activities in electricity and environmental markets. The role involves risk reporting, trading controls, and analytical support, contributing to risk management tools and market analytics.

Senior Data Engineer needed for hybrid role (2 days onsite in Madrid). 6-month initial contract with potential extensions. Responsibilities include project delivery, maintenance, documentation, stakeholder management, and technical expertise in data engineering, analytics, and cloud technologies. Requires 3+ years of data engineering experience, 2+ years in data analytics on AWS, and strong Python and SQL skills. Consulting background and experience with Apache Spark, Airflow, and Docker are essential. Fluency in English is required.

Sephora Iberia seeks a Portuguese-speaking E-commerce Content Manager based in Madrid. The role involves managing and scheduling content for sephora.pt, executing campaigns, and collaborating with internal and external stakeholders. Experience with a large e-commerce CMS (e.g., Salesforce Commerce Cloud) is required.

As a Senior Account Manager for Retail, you will own the Joint Business Plan for top-tier partners, defining the year roadmap to boost GMV and market share. You will build and scale a high-impact partner portfolio, identifying untapped business opportunities and creative collaborations. You will act as the primary point of contact, leading negotiations and onboarding key retail giants.

This 12-month internship provides administrative support to the HR function and the Managing Director. Tasks include payroll processing, employee lifecycle support, recruitment assistance, and managing director calendar and travel arrangements.

Sea Recovery Centre seeks a Night Supervisor to oversee centre operations and client support during overnight hours. Responsibilities include ensuring a safe and secure environment, responding to client needs, and maintaining clear communication with senior staff.

Entry-Level Sales Executive to support commercial airline customers. 1-3 years of experience in aviation spare parts, components, or aftermarket sales required.

Senior PMO to lead governance and delivery of a large-scale banking and insurance migration program. Experience leading complex transformations in a highly regulated environment required.