react English-speaking jobs in Valladolid

Manages the analysis area of the R&D department, planning, researching, and implementing new and existing projects. Ensures safety, quality, and compliance with regulations. Leads a team, manages budgets, and collaborates with other departments. Requires a technical background in chemistry, analytical development expertise, and experience in regulated environments.

Acts as main interface to internal customers, managing deliveries and ensuring process adherence. Leads interface with internal customer on SQCDP, reporting, and coordination. Manages supplier orderbook, actively managing stocks, and ensuring on-time, quality, and cost delivery of products. Participates in New Product Introduction and Change Request evaluation. Responsible for proactive and reactive product conformity according to quality inspection plans.

Junior Finance Manager to support monthly, quarterly, and annual financial reporting. Ensures accuracy of local financial data and prepares management reporting packages. Oversees statutory accounting requirements and compliance with Spanish regulations. Collaborates with Group Finance and local operations.

Define and lead the end-to-end gaming strategy, owning the full lifecycle from concept to monetization. Build a world-class gaming portfolio, driving user growth, engagement, and revenue.

Field Service Engineer to support customers in northeastern Spain, traveling primarily in the southeast and occasionally to Portugal. Responsibilities include installation, maintenance, and optimization of sensor-based sorters. Requires a technical degree, proficiency in Spanish and English, and a full clean driving license.

Hitachi Energy seeks a Technology Scouting Lead to identify, evaluate, and connect emerging technologies to business needs. This strategic role involves building and stewarding innovation intelligence structures, mapping technology landscapes, and translating insights into actionable recommendations for R&D, portfolio teams, and leadership. The ideal candidate will have a background in innovation management, technology scouting, or a related field with experience in analyzing datasets, identifying trends, and evaluating startup technologies.

As a Tracking & Integration Specialist, you will implement, test, and maintain affiliate tracking integrations across various platforms. You will work with our in-house tracking solution, ensuring accurate and GDPR-compliant tracking for advertisers and partners.

Senior Enterprise Data Platform Architect to design and implement a scalable Azure-based data platform. Responsibilities include data platform architecture, integration, operations, quality, governance, analytics, and AI enablement. Requires 5-8 years of experience in data operations, Microsoft Azure data solutions, and data visualization tools.

Software Engineer Manager to lead technical aspects of a project for a global credit card company. Responsibilities include technical guidance, project execution, team leadership, and software maintenance. Requires experience with Java, AWS, APIs, and Agile methodologies.

The Commissioning & Start‐Up (CSU) Manager leads planning, resourcing, and execution of pre‐commissioning, commissioning, start‐up, and performance testing to achieve safe, compliant, and right‐first‐time handover to Clients. This role drives systemization, readiness, and risk management from late construction through operational acceptance, coordinating with engineering, construction, HSE, quality, vendors, and the client's operations/maintenance teams.

Software Maintenance Engineer will resolve complex customer problems related to Ubuntu, Kernel, Ceph, OpenStack, or Kubernetes and other open source software. Responsibilities include maintaining a close working relationship with Canonical’s Field, Support and product engineering teams, participating in upstream communities, developing bug fixes, and reviewing code.

Head Steward needed for SLS Barcelona opening team. Manages stewarding team, inventory of equipment, china, cutlery, glassware, and supplies. Ensures a clean and safe working environment for restaurants and kitchen. Requires 3+ years experience as Chief Steward in a high volume hotel/restaurant. Fluent in Spanish.

Senior UX/UI Designer needed for international project. Design engaging digital experiences, conduct user research, and create prototypes. Must have 7+ years of experience, proficiency in Figma, Sketch, and Adobe Creative Suite, and strong communication skills.

The Lifting Appointed Person (AP) plans, organizes, and supervises lifting operations, ensuring safety, regulatory compliance, and adherence to company standards. This role coordinates with engineering, construction, and HSE teams, develops risk assessments, and verifies safe conditions. Requires CPCS A61 or equivalent certification and training in LOLER, Safe Systems of Work/RAMS.

The SR. ASSOCIATE STRUCTURED RECEIVABLES will structure and execute structured trade receivables deals globally. Responsibilities include business origination, supporting the approval process, and new product development. Requires 5+ years of experience in trade receivables portfolio analysis and structuring transactions.

Graduate Analyst to support executive search team, conducting market research, identifying candidates, and managing data.

System Administrator to support and scale infrastructure for international iGaming platforms. Requires strong Linux expertise, networking knowledge, and experience with web servers (NGINX, Apache) and databases (MariaDB). Must be comfortable working in a fast-paced, high-availability environment.

Senior Fullstack Engineer will design, implement, and maintain full-stack features for the Nivoda platform. Responsibilities include building frontend interfaces, ensuring adherence to coding standards, collaborating with stakeholders, and mentoring junior developers. Requires 5+ years of full-stack development experience, proficiency in Node.js, React, GraphQL, and PostgreSQL.

Senior Frontend Developer needed for contract role. Build high-performing, conversion-focused web experiences across customer-facing platforms and internal tools. 5+ years of frontend development experience required. Strong HTML5, CSS3, JavaScript (ES6+), jQuery, and PHP experience necessary.

Lead and scale agent retention and lifecycle in Spain, reporting directly to the CEO. Design, build, and optimize systems to drive agent engagement, activation, and long-term success. Define and own the company's agent retention strategy, focusing on the first 90 days of the agent lifecycle.