frontend developer English-speaking jobs in León

The Business Controller Spain will manage daily activities of the Business Controller areas, ensuring accurate and timely task completion. Responsibilities include providing financial analysis, coordinating budget and forecasting processes, performing financial analyses, reporting financial findings, and participating in audits.

Analyst to join the Client & Product Solution Team. Responsibilities include investor meeting coordination, marketing material preparation, fund launch support, due diligence meeting organization, and data room maintenance. Requires a Bachelor's degree in a related field, experience in private debt/equity, and strong communication skills.

This 3 to 6 month internship provides training in the full recruitment lifecycle, focusing on identifying and placing C-suite and senior-level leaders. Students in their penultimate year of study or starting a Master's in September 2026 are eligible.

As a Senior Customer Success Manager, you will manage strategic and enterprise accounts, ensuring customers realize business value from the Strategy platform. You will guide customers through their lifecycle, from onboarding to long-term value realization, and partner with Sales, Product, Support, and Engineering teams. You will drive platform adoption, manage technical aspects, and advocate for customer needs.

Finance Accounting Manager oversees financial operations, including accounting processes, financial reporting, budgeting, and compliance. Manages general ledger, AP/AR, payroll, and bank reconciliations using QuickBooks. Leads in auditing financial documents, identifying financial risks, and coordinating with internal and external teams. Requires a Bachelor's or Master's degree in Accounting, Finance, or Mathematics and 7+ years of experience in Business Administration and Management with a focus on Finance.

Maintenance Manager to lead planning and optimization of maintenance processes in a chemical plant. Responsibilities include managing the CMMS, supervising the maintenance team, and collaborating on technical projects. Requires a Bachelor's or Master's degree in Engineering and 3+ years of experience in industrial maintenance.

SAP Order-to-Cash Business Analyst to support and improve Order-to-Invoice processes in a global SAP S/4HANA environment. Analyzes business requirements, translates them into functional specifications, and coordinates with development teams to deliver system improvements. Supports BAU operations, analyzes operational issues, and participates in testing activities.

Optimize hotel product performance by renegotiating contracts, analyzing data, and collaborating with suppliers.

Laboratory Analyst to analyze samples, report data, collaborate on method development and validation, and maintain laboratory records. Requires experience with analytical techniques (HPLC, UV, UPLC, LC-MS, GC-MS, PSD, potentiometric titration, KF titration, IR) and strong analytical, problem-solving, and organizational skills.

Computer System Validation Engineer needed for a 6-month remote project integrating neuroelectronic interfaces. Responsibilities include creating validation protocols, executing tests, and documenting results. Knowledge of GAMP 5 and 21 CFR Part 11 required.

Lead the sales of custom-made industrial machinery in Spain and Portugal. Manage the full sales cycle from business development to technical support. Requires experience in selling capital goods, strong communication skills, and fluency in English.

Quality Engineer (APQP) ensures new aerospace products and processes meet safety, reliability, and regulatory standards. Responsibilities include supplier oversight, process validation, audit execution, and non-conformity management. Requires a Bachelor's degree in Aerospace Engineering, 3-4 years of industry experience, and knowledge of ECSS and EN 9100 standards.

Clinical Research Associate to support planning, monitoring, and execution of clinical studies. Ensures compliance with GCP, regulations, and quality standards. Minimum 1 year of experience as a CRA required.

For one of our main IT customers based in Pozuelo de Alarcón, we are looking for a Procurement & Contract Manager. The role is responsible for partnering with the broader Global Supply Chain teams including Planning & Analytics, Procurement, Supplier Quality and Design and Construction team to meet the on-time delivery for a large, complex capital project.

The Client Operations Manager supports three key functions: listing coordination, buyer journey support, and after-sales client retention. This role requires exceptional organizational skills, strong communication in English and at least one additional European language, and experience with CRM systems.

Service Manager to join a multinational technology company in Spain. Manage customer relationships, ensure service delivery and network stability, develop service solutions, and guide partner capabilities. Requires a Bachelor's degree and 8+ years of experience in ICT, including customer service, delivery & maintenance, and service sales. Fluency in English is required.

QA Engineer needed for international project in private banking and wealth management. Design, execute, and maintain test cases, perform manual and exploratory testing, and validate system integrations. Experience with REST API testing, CI/CD pipelines, and Jira is required. Fluent English is essential.

International Accountant to manage accounting and financial oversight of subsidiaries in Sweden and Finland. Lead monthly close processes, ensure financial record accuracy, and coordinate with international finance teams.

Freelance Sales Closer to convert leads into clients for a digital agency. Remote, commission-based role. Strong communication and sales experience preferred. Fluency in Dutch, Spanish, French, German, or Italian a plus.

APM Monaco seeks a full-time Sales Associate for a fixed-term contract (May-August) in Puerto Banús. Responsibilities include customer relationship management, inventory management, sales support, and visual merchandising. Fluency in English and Spanish is required.