frontend developer English-speaking jobs in León

Senior Software Engineer to design, build, and operate backend and platform services in a cloud native environment. Focus on distributed systems, event driven architectures, and highly reliable APIs.

Build and execute quote proposals for parts and billable services. Partner with commercial and fulfillment teams to understand availability, lead times, costs, and prices. Communicate with end-users and work to increase market capture and Key Account performance.

Legal professional to draft, review, and negotiate commercial contracts for iGaming and digital entertainment company. Support internal teams with legal guidance and risk awareness. Minimum 2 years of experience in iGaming legal roles required.

Coordinates tax workstreams for M&A transactions, including due diligence, structuring, and closing deliverables. Provides tax support for real estate projects, including acquisition structuring, development, and exit planning. Delivers tax support across direct and indirect tax areas, with a focus on cross-border operations.

Software Engineer to design, implement, and maintain features for a platform using AI-first engineering principles. Collaborate with the product team on system design and mentor peers. Requires a Bachelor's degree in a relevant field, deep understanding of cloud infrastructure, and strong communication skills in English.

Data Engineer with 2+ years of experience needed to design and build ETL/ELT pipelines for SAP financial data. Must have proficiency in SQL, experience with cloud-based data platforms (AWS preferred), and familiarity with Airflow and dbt.

The Administrative Assistant ensures smooth daily operations for the Madrigal affiliate. This role manages office resources, coordinates staff activities, and serves as a central point for communication and logistical support.

Boatsters Black seeks a PR and Events Manager to develop and execute PR strategies, manage media relations, and coordinate events globally.

Drive revenue expansion across the DACH region for a French SaaS scale-up specializing in digital trust solutions. Manage existing clients, develop strategic account plans, and collaborate with cross-functional teams.

Investment Analyst to support private equity investments in technology-enabled financial businesses. Responsibilities include financial analysis, valuation, company research, and portfolio monitoring. Seeking recent graduates or those graduating in 2026 with strong analytical skills and interest in finance and technology.

Support site HSE function on a major green industrial project in South Spain. Implement HSE plan, monitor works, conduct inspections, and assist with risk assessments. Minimum 4 years' experience in HSE on industrial or construction sites required. Solid understanding of Spanish HSE regulations and EU directives.

Provide first-level IT support to offices and remote users across Europe. Manage reported issues/requests using Zoho Desk. Perform IT orders, track invoices, and manage IT assets.

Murex Risk Consultant required for a financial institution. Minimum 8 years of Murex experience needed. Strong knowledge of VaR calculation processes, Market Risk metrics, and Murex 3.x platform. Responsibilities include risk analysis, configuration, and support.

As Ultralytics' first Product Marketing Manager, you will define and execute GTM strategy for the Ultralytics product suite, translating technical capabilities into clear value for developers and enterprise buyers. You will own launch plans, messaging, and positioning, working closely with engineering and product teams to shape narratives and drive adoption.

Join our team at Hotel METT Barcelona as an Intern! Gain hands-on experience in areas such as Finance, Human Resources, Housekeeping, Group Sales, Reservations, Guest Experience, Spa, IT, F&B, or Kitchen. Must be a current student, available full-time for 6 months, and able to sign a collaboration agreement with your school.

Data Engineer/Developer to design, develop, and maintain data solutions for energy trading operations. Responsibilities include developing Python tools, collaborating with traders, and deploying cloud-native applications on AWS. Requires expertise in Python, AWS, API integrations, and CI/CD.

Experienced Sales Representative needed to drive sales growth and manage key customer accounts in Andalusia. Achieve sales targets, grow market share, and retain existing business for a leading international ophthalmic medical device company.

Quantitative Risk Consultant will contribute to the growth of Prometeia's ERM activities in Madrid, supporting the development of quantitative risk modeling capabilities. Responsibilities include collaborating with a team of business consultants and risk advisors, supporting client engagements in Spain and Portugal, and coordinating project streams related to Credit Risk model development and validation.

Platform/DevOps Engineer will design, build, and operate distributed systems in AWS. Manage and optimize Kubernetes clusters at scale, implement infrastructure as code with Terraform, and automate processes.

Entry-level Sales Development Representative (SDR) for a fast-growing SaaS startup. Focus on outbound calls to eCommerce brands, qualifying prospects, and booking meetings. Fluent English required, based in Madrid.