frontend developer English-speaking jobs in León

Product Sales Executive will drive adoption of global employment, cross-border compliance, and payroll solutions for small and mid-sized businesses. Responsibilities include prospecting, building, and closing a high-volume pipeline, targeting potential customers, and communicating the value proposition using a consultative approach.

Leads product category strategy and execution, achieving market share, volume, and profit targets. Manages brand strategy, marketing plans, product lifecycle, and financial performance. Requires strategic planning, financial analysis, and cross-functional leadership.

Senior Integration Engineer needed to design, build, and troubleshoot APIs using MuleSoft in a global enterprise environment. Must have strong hands-on experience with API architecture and enterprise integrations.

The Site Manager will oversee site works for electrical projects, planning, coordinating, and monitoring teams of field services engineers, installation teams, and sub-vendors. Responsibilities include managing daily site activities, ensuring adherence to safety regulations, preparing and monitoring installation and commissioning schedules, and acting as the primary contact for the customer and general contractor. The Site Manager will also identify problems, ensure proper installation and testing of equipment, and manage the snags list until successful closure.

Design Engineer to execute the full design process from ideation to production. Responsibilities include drawing, updating, and maintaining designs, creating design and installation documentation, and managing multiple projects. Requires a Bachelor's Degree in Mechanical Engineering, Industrial Design Engineering, or a related field and 2 years of experience using Autodesk Fusion 360.

ServiceNow Platform Engineer with 5+ years of experience in custom application development, integrations, and platform administration. Expertise in Flow Designer, Integration Hub, scripting, and AI governance solutions. Strong understanding of AI compliance frameworks and experience embedding controls into technical architectures.

Investment Associate - UAE We are seeking an Investment Associate to support portfolio management and new investment activities across a diversified asset base. The role involves deep analytical work, financial modeling, and transaction support, working closely with senior investment professionals.

Intermediate Quantity Surveyors will support projects across Ireland and Central Europe. Responsibilities include budget preparation, cost estimates, progress reports, and client communication. The role requires 4+ years of experience, a degree in Quantity Surveying or related field, and strong commercial awareness.

Senior Performance Marketing Manager will own paid media strategy and execution for B2B SaaS clients across LinkedIn, Google, Reddit, and other channels. Responsible for budget allocation, testing roadmaps, and performance reporting tied to CAC and pipeline. Requires 5+ years in paid media, strong hands-on experience with LinkedIn & Google Ads, and experience connecting paid performance to CRM and revenue. Must integrate AI into campaign research, testing, and creative iteration.

Develops sales plans, establishes overseas sales platforms, and manages customer relationships. Leads international exhibitions and conferences. Requires a bachelor's degree, 5+ years of international sales experience, and proficiency in English.

Regional Sales Manager to drive profitable growth and market development for Paints & Coatings across France, Iberia, and North Africa. Manage a €20-25M portfolio, oversee 60-70 key customer relationships, and secure new business. Requires 5+ years in Sales Management, experience in the Paints & Coatings industry, and fluency in Spanish, French, and English.

Casamona Real Estate seeks a fluent English and Spanish speaker to assist with property leasing, finding new listings, and creating marketing content.

Manage customer complaints and product recalls, ensuring compliance and protecting product quality and reputation. Coordinate with technical teams to investigate root causes, propose corrective actions, and communicate with customers.

Experienced Environmental Health & Safety (EHS) Specialist to lead EHS programs across Biogas, Food & Beverage, and Carbon Capture projects in Europe. Develop, implement, and maintain EHS policies, procedures, and site programs. Conduct site audits, risk assessments, and incident investigations. Ensure compliance with regulatory standards and industry best practice. Bachelor's degree in EHS, Occupational Health & Safety, Engineering, or related field required. Minimum 5 years' experience in EHS roles within field service, heavy industry, energy, or related sectors. Must be based in Europe and hold a permanent right to work within Europe.

Launch Specialist will coordinate cross-functional teams to ensure successful product launches, managing timelines, dependencies, and communication.

Client Relations Agent will manage inbound inquiries from clients via phone, email, and digital channels. Responsibilities include organizing leads, updating client records, and coordinating with sales agents. Requires 1-2 years of experience in client relations, customer service, or administrative coordination. Fluency in Spanish and English is required.

Analyze client marketplace performance, build business reviews, and implement strategic recommendations to optimize operations. Support cross-functional projects focused on process improvement, team growth, AI implementation, and operational excellence.

Backend Python Engineer to design, develop, and maintain APIs and microservices for healthcare technology solutions. Experience with FastAPI, Django, PostgreSQL, RabbitMQ, Docker, and HL7 integrations required.

Controlling & Cash Manager for international consumer goods organization. Focus on financial steering, cash forecasting, working capital optimization, and overhead control, including personnel costs. Requires 8-12 years of finance experience, strong analytical skills, and proficiency in SAP and Excel.

Full Stack Engineer to join a growing development hub in Valencia. Develop and maintain web application features across the full stack (React + TypeScript frontend, Express.js + TypeScript backend). Design and implement database schemas, migrations, and optimized queries (MySQL / MariaDB). Build and maintain REST APIs and integrate them with frontend systems.