javascript English-speaking jobs in Santa Cruz de Tenerife

Project Researcher Engineer to design, execute, and manage experiments focused on in vitro protein biochemistry, purification, reconstitution, and engineering. Responsibilities include cloning, protein expression, purification, characterization, and laboratory management.

Senior Backend Developer will design, develop, test, deploy, and maintain software using a JVM language and Spring Boot in large-scale production systems. Experience with relational and non-relational databases, preferably Postgres, and AWS is required.

Public Tender and Customer Service Specialist will manage tenders, customer requests, and order status. Responsibilities include quote creation, order processing, and issue resolution. Requires native-level German, experience in terms and conditions review, and strong communication and problem-solving skills.

Maintenance Engineering Manager for Mainline Trackside signalling contracts. Manages warranty & maintenance activities, supervises subcontracted services, and communicates with clients. Requires 3-5 years' experience in maintenance signalling projects, ADIF project experience, and team management. Fluent English required.

Provide Tier 1-2 technical support for connected laundry systems, including hardware, software, and cloud platforms. Troubleshoot IoT device issues and support end users on web and mobile platforms. Travel to customer sites for on-site support.

BUZZ seeks a Business Development Manager to drive regional sales and expand its power bank sharing network. Responsibilities include prospecting, qualifying, and closing new partners across various sectors, developing key accounts, and coordinating station installations. The ideal candidate has 2+ years of B2B sales experience, a strong understanding of unit economics, and the ability to manage a sales pipeline.

Data Architect to manage permissions, optimize costs, and ensure operational stability across the Snowflake data platform and associated tools (Airflow, dbt). Responsibilities include managing Snowflake access, monitoring and optimizing cloud service costs, overseeing platform operations, and leading deployments.

Scientist to design, supervise, and execute transfer and validation studies of biological and small molecule products in a GMP environment. Requires hands-on experience with chromatography and HPLC, and strong documentation skills.

HR Advisor responsible for managing the full employee lifecycle in a fast-paced tech startup environment. Experience in labor law compliance, payroll, benefits administration, and talent acquisition is required. Must have strong knowledge of Spanish employment law and the ability to design and implement HR processes.

Regional Sales Manager for Geely Auto in Spain. Executes national sales strategy, manages dealer network performance, and provides market insights to support business objectives.

AirAdvisor seeks a Litigation Lawyer specializing in consumer flight claims to lead in-court collections. Responsibilities include filing court cases to collect compensation and/or reimbursement of Out-of-Pocket Expenses (OPE) incurred by passengers. The role requires a valid Attorney at Law license in Spain and experience in airline passenger claims under EU261/2004 or the Montreal Convention.

Leads the Massimo Dutti Feel Loyalty Program strategy, defining benefits, communication, and analysis. Manages program implementation across online and offline channels, collaborating with departments to ensure a cohesive customer experience. Requires 7+ years managing loyalty programs, preferably in fashion, with strong analytical and communication skills.

Manages relationships with mobile, PC, and emerging platforms to ensure optimal game positioning and support. Drives promotions, identifies growth opportunities, and supports studios throughout the game lifecycle. Analyzes platform data, negotiates partnerships, and stays informed on industry trends.

Senior Performance Engineer needed for a leading renewable energy multinational. Manage data sources, analyze asset operation, and propose improvements to power plant generation. Requires a Bachelor's degree, 8+ years of energy industry experience, and advanced English and native Spanish proficiency.

Full-Stack Engineer to build an AI-native platform with autonomous agents, smart workflows, and real-time voice interactions. Design and ship end-to-end features using Next.js, FastAPI, and Supabase. Automate deployments, create reusable patterns, and build API integrations for HR tech stack. Requires 4+ years of full-stack experience, proficiency with AI coding agents and LLMs, and experience with monorepos, deployment automation, and CI/CD.

Manage end-to-end procurement of KD/CKD components, including sourcing, technical communication, and contract negotiation. Collaborate with engineering, manufacturing, and logistics teams on supplier evaluation, capacity assessment, and quality assurance. Monitor market trends, raw material prices, and supply chain risks.

Data Architect to design and implement data-driven solutions. Define functional and technical data architectures, contribute to project documentation, and collaborate with IT teams.

Data Modeller needed to design scalable data models for an insurance client. Responsibilities include translating business requirements into data models, defining data standards, and collaborating with business and technical teams. Requires experience in dimensional and transactional modeling, data modeling governance, and English proficiency (B2+/C1).

Senior Data Architect & Program Delivery Lead needed to bridge legacy enterprise data platforms (Informatica PowerCenter, Oracle) and modern AWS cloud architecture. Leads technical architecture discussions, drives program governance, and ensures delivery success in a large-scale, multi-team environment. Owns technical direction, defines target architecture, and unblocks engineering teams. Requires 3+ years of Informatica PowerCenter experience, strong PySpark skills, and AWS data engineering knowledge. Proven track record leading large-scale data migrations and managing agile data engineering teams. Strong communication and stakeholder management skills are essential.

Supervises restaurant operations, including food & beverage training and safety regulations. Requires 2+ years waiter experience, fluency in English, and knowledge of restaurant systems and food safety. Additional language skills are beneficial.