frontend developer English-speaking jobs in León

Position MissionThe Service Account Engineer and Field Operation Coordinator (Jefe de Servicio) is responsible for maintaining the relationship with customers and managing them for all the after-sales services.

TL;DR Kharon is seeking a full-time Data Engineer based in Madrid. This role requires in-office attendance at least 4 days per week, with additional flexibility awarded after complete onboarding. RESPONSIBILITIES: Help build large-scale distributed automated data processing systems and data lakes, while optimizing for both computational and storage efficiency on AWS Databricks.

About MIGxMIGx is a global consulting company with an exclusive focus on the healthcare and life science industries, with their particularly demanding requirements on quality and regulatory aspects. We have been managing challenges and solving problems for our clients in the areas of compliance, business processes and many others.

About us:Springboard is a dynamic company with over 10 years of experience helping tech companies grow. We have successfully supported more than 300 businesses in expanding their reach across Europe and Latin America. Our strong and steady team of Business Developers works closely with our tech partners to help them sell, scale up, or launch in markets where we have a significant presence.

Fly with us into the future and become part of the team at one of the most innovative aircraft manufacturers in the world. Your Tasks Maintain general and sub-ledgers (. accounts receivable, accounts payable, fixed assets, bank, inventory, work in progress Reconcile and control payroll journal entries, including various provisions.

FTEJerez trains an increasing number of pilots for some of the world's leading airlines every year. Thanks to our constant growth we are now looking for experienced flight instructors. Selected candidates will be flying FTE's fleet of PA28 and DA42 aircraft, whilst enjoying southern Spain's outstanding climate and culture all year round. FTEJerez operates 50 weeks/year, 7 days/week.

Job Description: Responsible for overseas orders (including sales loan, prototype borrowing) handling and process improvement, follow the policy of the destination country for delivery compliance, support the company's overseas business.

As a Senior Software Engineer, you'll join a small, senior team responsible for designing and delivering robust, production-ready platforms. You'll work on systems that integrate AI capabilities, backend services, and modern web applications, with a strong focus on reliability, scalability, and clean architecture. This project is long-term.

A boutique executive search firm is currently partnering with a leading client in the real estate sector to appoint a visionary Head of Data & Analytics. The successful candidate will be accountable for executing an enterprise-wide data and analytics strategy, ensuring it fully aligns with organizational goals.

At Orbital Paradigm, we develop autonomous reentry capsules for routine, fast-return transport from orbit, supporting in-space manufacturing, science, and logistics. We are looking for a Founder's Associate Intern, to work directly with the co-founders on strategic and operational priorities across all areas of the company.

Who We AreAt Spoki, we’re redefining how businesses communicate with their customers through innovative technology, 3x YoY growth, and a vision to become a Unicorn. We empower businesses worldwide with Conversational Commerce tools that optimize marketing, sales, and customer support - making every interaction seamless, efficient, and personalized.

ABOUT MAKEAt MAKE, we believe creators deserve a banking solution that gets them. One that’s fast, intuitive, and built to help them grow. We’re building the world’s first financial platform tailored to content creators — making it easier to earn, spend, and save money across borders.

About us:At Nae, as an industry expert in the TMT sector, we help our customers to identify new levers of value creation through our E2E consulting services. We generate a unique experience for our customers and partners by providing customised and valuable solutions, working as one team, from diversity and engagement. We have been developing projects in the telecommunications market for 20 years.

Take your career to the next level with Amaris Consulting as a Senior Network Engineer. Become part of an international team, thrive in a global group with €800M turnover and 1,000+ clients worldwide, and an agile environment by planning the kickoff and follow-up on projects. Join Amaris Consulting, where you can develop your potential and make a difference within the company.

We are:Wizeline, a global AI-native technology solutions provider, develops cutting-edge, AI-powered digital products and platforms. We partner with clients to leverage data and AI, accelerating market entry and driving business transformation. As a global community of innovators, we foster a culture of growth, collaboration, and impact.

We're looking for someone with sales aptitude and excellent closing skills. Does this sound like you? Entrepreneurial spirit. A dreamer and a doer who is optimistic about possibilities, passionate about seeing your vision come to life, and takes thoughtful risks to get there. Self-Starter and go-getter. High-reaching and unstoppable.

Omega CRM is a Merkle & Dentsu company, leader in development of Customer Experience services, with +20 years of experience in the use of Technology applied to Marketing and providing a unique Customer Relationship with mainly focus on Innovation is looking for a Data & Analytics Strategist Responsibilities Gains industry and market expertise by participating in various projects to provide clients

Cactus is a software development company, providing full-cycle services for the European market. More than 170 companies increased business productivity using solutions developed by Cactus programmers. The company has been regularly included in the listings of the best software development companies in Belgium and Europe.

***This is initially a Fixed Term Contract until the end of June 2026 - Hybrid from a new site in Zaragoza***ResponsibilitiesLead cross-functional teams of engineers and machine learning practitioners to deliver impactful LLM and AI solutions for top-tier industry clients.

Change Group (a Prosegur's Company) is looking for a creative, proactive, and social-media-savvy intern to join our Marketing Team as a Social Media Content Creator & Community Manager. You will help shape our digital presence and create engaging content for multiple international markets. What will be your main duties?