frontend developer English-speaking jobs in León

Project Engineer needed for growing team in Barcelona. Responsibilities include technical project execution, budget preparation, customer support, and technical documentation creation. Requires strong English skills, technical engineering background, and project management experience in the security sector.

Leads the development, evolution, and maintenance of operational platforms within traffic ecosystems. Responsible for platform strategy, governance, and user experience. Oversees the strategic development of underlying technologies and ensures platform robustness, scalability, and security.

Embedded Software Engineer to design, implement, and maintain cryptographic libraries for embedded systems. Develop security algorithms and cryptographic primitives for constrained environments. Contribute to the implementation and evaluation of post-quantum cryptography (PQC) algorithms.

Key Account Manager to manage and expand relationships with existing accounts, focused on offering consulting services. Develop strategic account plans, collaborate with internal teams, and analyze market trends to drive sales growth.

Customs Compliance & Operations Manager needed for a new business entity in Zaragoza. Expert customs knowledge and technical support to operational teams are required. Responsibilities include AEO authorization management, relationship with Spanish Customs and Tax administration, and analysis of customs flows and processes. The role requires a university degree in tax & legal or Spanish Customs administration, at least 5 years of customs experience, and fluency in English and Spanish.

The GenMed Account Manager builds and nurtures customer relationships, ensuring clients achieve measurable value and identifying new growth opportunities. They represent Cytiva as the primary customer point of contact, expanding business, gaining market share, and achieving sales targets.

Computational Biologist to develop bioinformatics and systems biology pipelines for microbiome data integration. Analyze metagenomics and single-cell RNA sequencing data to understand human-microbiome interactions in reproductive health.

Senior Frontend developer needed to strengthen brand presence in Spain. Expertise in Javascript, html5, css (stylus...), ES6, Webpack, Nodejs, NPM, and Typescript required. Plus points include experience with Lit-element web components, Polymer 2, React, Vue, Redux, Vanilla, Azure Devops, and testing methodologies. Strong communication and teamwork skills are essential.

Mechanical Design Engineer needed for the design, development, and validation of mechanical systems in Defense and Space applications. Requires a degree in Mechanical, Naval, or Aerospace Engineering and 5+ years of experience. Proficiency in SAP and PLM tools is essential.

Customer Experience Specialist will lead follow-up and support calls with prospective customers, representing a premium automotive brand. Responsibilities include reinforcing brand value, identifying customer concerns, and collecting insights to support sales teams. Must be bilingual in Flemish and English with experience in customer service or sales, ideally within the automotive or luxury sectors.

Mechanical Engineer / Mechanical Design Engineer to lead and execute the complete mechanical development process for an automotive project. Responsibilities include requirements management, mechanical design & implementation, change management, verification & validation, and knowledge management.

Manage and optimize Google Ads campaigns for fashion-related dropshipping clients. Responsibilities include campaign setup, performance monitoring, reporting, and client communication.

Administrative Specialist to manage office operations, insurance, finances, facilities, procurement, and project support. Requires a Bachelor's degree, 3+ years of experience, fluency in Spanish and English, and strong MS Office skills.

Skilled Rust Engineer needed to build and maintain next-generation WebAssembly infrastructure. Experience with WebAssembly, WASI, Emscripten, and POSIX required. Strong ownership and communication skills essential.

The Production Scheduler develops, maintains, and optimizes production schedules, ensuring alignment with the Master Production Plan and program requirements. This role involves creating and managing production schedules, analyzing KPIs, and coordinating with production teams and Supply Chain.

Pharmacovigilance Specialist needed for a 6-month interim project in Madrid. Responsibilities include managing Individual Case Safety Reports (ICSRs), ensuring regulatory compliance, and supporting the local pharmacovigilance system. Requires a university degree in Health Sciences and minimum 4 years of experience in Pharmacovigilance and/or Clinical Research.

Lead operations across Spain for a telematics company, managing a team of 25 employees and overseeing customer & technical support, logistics, scheduling, and installer partners. Optimize operational performance, structure internal processes, and contribute to customer relations.

Senior IT Auditor will develop risk assessments, audit plans, and execute audit engagements. Requires 5+ years of IT Audit or IT Internal Controls experience, knowledge of IT governance, risk, and control frameworks, and proficiency in project management and data analytics tools.

Finance Business Partner will collaborate with business units to develop financial forecasts, budgets, and strategic plans. Provide financial analysis, support decision-making, and ensure compliance with accounting standards.

AI Product Manager will identify, design, and implement AI-driven initiatives across commercial processes. This role will define AI roadmaps, manage project implementation, and collaborate with cross-functional teams to ensure alignment with business objectives.