frontend developer English-speaking jobs in León

Data & Systems Intern will support data management activities including data loads, quality assurance, testing, and BI development. Must be a university student with basic SQL, Excel, and Python knowledge and strong communication skills.

Leads and coordinates non-clinical development activities for drug candidates, ensuring scientific soundness, regulatory compliance, and alignment with development strategy.

Lead and administer global compensation programs, including salary surveys, benchmarking, merit cycles, and bonus plans. Develop and implement compensation policies and procedures, ensuring compliance with legal regulations. Analyze compensation data, recommend enhancements, and consult with stakeholders on pay decisions.

Accountant needed for a dynamic Finance team in central Madrid. Assist with daily accounting tasks, financial record-keeping, and reporting. Requires a degree in a related field, fluency in Spanish and English, and strong Excel skills.

Machine Learning Platform Engineer to design, deploy, and operate production-grade AI systems. Responsibilities include building automated pipelines, running ML workloads on cloud platforms, and improving reliability and performance. Strong Python engineering background and experience supporting ML systems required.

Telecommunications Engineer needed to provide expert support for AXON Networks products. Design, develop, and refine algorithms, troubleshoot, and collaborate with teams to deliver innovative network access solutions.

The Category Manager delivers best-in-class category leadership with customers to drive growth and engagement. The role leverages market, shopper, and customer insights to identify category growth opportunities and executes these through strategic category plans. The Category Manager collaborates with customers, sales teams, and internal stakeholders to achieve mutual, profitable, and sustainable category growth.

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.

Experienced Junior MES Manager needed for global digital manufacturing rollout. Lead MES implementation and integration across sites, standardize production tracking, and integrate with ERP (SAP). 5-7 years of MES experience and strong ERP integration knowledge required.

Supports group-level strategic initiatives across multiple business units and geographies. Contributes to long-term value creation, strategic planning, ESG performance, and growth initiatives.

Supervises daily store operations including sales, administration, customer service, and merchandising. Leads and motivates a team to achieve sales targets and provide excellent customer service. Manages store presentation and ensures adherence to brand standards.

Senior Cloud Security Operations Engineer will drive detection, hardening, incident analysis, and response across cloud, CI/CD, and on-prem environments. Responsibilities include building security tooling, implementing hardening strategies, monitoring alerts, and collaborating with IT and Engineering. Requires extensive experience in Cloud Security / SecOps, AWS / Azure, Terraform, Kubernetes, and modern cyberattack techniques.

The Clinical Scientist executes medical and scientific activities within assigned clinical studies, supporting design, execution, and documentation under the Global Clinical Lead's oversight.

Manages partner relationships to achieve company bookings goals. Collaborates with cross-functional teams to develop joint value propositions and go-to-market plans. Drives deal registration, funnel creation, and pipeline development. Oversees channel partner relationships and conducts business reviews to track progress.

Data Analytics & Reporting professional to drive data-driven decision making in the Commercial organization. Analyze data from internal and external sources using SQL, PowerBI, and Excel. Lead data tracks for projects, including exploratory data analysis, BI support, and proof-of-concept development. Deliverables include increased customer data completeness, accuracy, and consistency, customer 360 insights dashboards, and customer size classification models.

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.

Senior Sales Manager to lead new business development for pharma & healthcare clients. Must have proven pharma/healthcare and agency experience. Strong understanding of healthcare communications and client dynamics required. Fluent English, Spanish a plus.

The Consolidation Manager ensures the accuracy and timeliness of consolidated financial results for a publicly listed organization. This role coordinates financial data across subsidiaries, collaborates with local finance teams, and supports strategic decision-making.

The Project Financial Controller will oversee financial planning, budget control, and accounting for assigned projects. Responsibilities include monitoring costs and revenues, preparing financial reports, and collaborating with teams to ensure project viability.

Production Engineer needed to apply Lean Manufacturing and Continuous Improvement concepts. Develop and maintain production plans, train personnel, and standardize production methods. Requires industrial engineering background, experience with Lean manufacturing, SAP, CAD/CAM, and quality tools.