student English-speaking jobs in Castelló de la Plana

Senior Python Developer to design, implement, and optimize platform applications. Requires 4+ years of Python experience in production environments, including frameworks like Django, Flask, or FastAPI.

Develop, train, and optimize computer vision models, focusing on the Ultralytics YOLO ecosystem. Implement data augmentation techniques and lead the full model lifecycle, from research to deployment.

Senior Underwriter to lead the development of a new Renewable Energy underwriting practice. Develop business strategy, underwriting processes, and product offerings. Analyze underwriting submissions, build a book of business, and drive new business growth. Requires experience in Renewable Energy, Power/Energy, or related specialty underwriting. Fluent English & Spanish.

IT Support Field Engineer L2 provides onsite and remote Level 2 support to end users, including troubleshooting hardware, software, and connectivity issues. Requires CompTIA A+ Certification and 2-4 years of experience. Must have strong customer service skills and proficiency in English and Spanish.

Senior backend engineer to design, develop, and operate software services within cross-functional teams. Responsibilities include writing clean code, designing domain-driven systems, practicing DevOps, mentoring team members, and leading architectural decisions. Experience with NoSQL databases, modern software development practices, and a higher-level programming language is required.

DevOps Engineer to support operation and development of a text-recognition solution focused on communication with local authorities. Responsibilities include operating, maintaining, deploying, and monitoring the application, enhancing cloud architecture, automating monitoring and incident resolution, and integrating partner systems. Requires 3+ years of experience in a DevOps or Cloud Engineering role, strong GCP expertise, and proficiency with CI/CD workflows, containerization, and Python.

Client Advisor needed for part-time position (20 hours/week) at the Madrid Las Rozas store. The role focuses on providing exceptional customer service, building client relationships, and driving sales. Proficiency in Spanish and English is required. This position is directed towards people with disabilities.

The HR Cybersecurity Compliance Analyst will support Cyber Security and Privacy compliance for HR processes and supporting applications. Responsibilities include ensuring HR systems comply with data protection regulations, conducting risk assessments, and collaborating with HR and IT teams to implement secure configurations and access controls. The ideal candidate will have a Bachelor's degree in Cybersecurity, Information Technology, Computer Science, or a related field and 3-5 years of experience in cybersecurity, IT audit, or compliance roles.

Bionet's STEM Excellence Internship Program offers a 6-month paid opportunity for outstanding students and recent graduates in STEM fields.

Leads technical application support, oversees day-to-day operations, and drives maintenance, enhancement, and development of the OneStream solution.

Designs, develops, and deploys Tibco-based interfaces for data exchange across BNP Paribas Personal Finance, the Group, and external applications. Collaborates with project managers and ensures compliance with IT-Risk and obsolescence requirements.

Software Developer will design, develop, and implement new product features using Vue.js, Nest.js, React Native, and Flutter. Responsibilities include data analysis, DevOps, API integrations, and exploring AI models. Requires 3+ years of experience with Node.js backend and modern frontend frameworks.

Data Specialist focused on Knowledge Graphs to design, build, and maintain scalable graph-based data pipelines. Experience with Knowledge Graph technologies and data engineering tools required.

Lead and evolve the QA strategy across 35+ teams, encompassing all levels of testing. Build automation infrastructure, promote automation-first approaches, and manage a group of QA Managers.

Mobile Developer to design, develop, and maintain native iOS (Swift) and Android (Kotlin) applications. Requires 3+ years of experience, B2 English, and a university degree in a related field.

Design and certify datalink and interface architectures for UAV/eVTOL platforms, ensuring compliance with ARP4754A/B, ARP4761, DO-178C, DO-254, and DO-160. Define avionics data architecture and interface control documents across various links. Lead certification activities and safety analyses.

The Senior HR Manager provides human resources leadership and support for multiple countries, including organizational development, employee relations, recruiting, compensation, benefits, performance management, training, and safety. The role requires developing and implementing HR programs and policies, aligning with global mandates, and collaborating with stakeholders to bridge operational gaps. The Senior HR Manager will also analyze data, provide training, and ensure compliance with local labor laws and company policies.

Receptionist to manage client bookings, handle inquiries, and provide information on spa treatments and services. Must have 2+ years of experience in a customer service role, fluency in Spanish, and conversational English.

Data Engineer needed for a growing consultancy in Madrid. Experience with MongoDB and database optimization required.

Performance Engineer to conduct performance, load, and stress tests on web applications. Analyze frontend performance and identify bottlenecks. Collaborate with developers and stakeholders to integrate performance testing into CI/CD pipelines.