product manager English-speaking jobs in Jaén

Freelance Controller needed to review and refine AI-generated financial responses. Evaluate outputs for accuracy, compliance, and best practices. Draft financial scenarios and assess AI reasoning in areas like analysis, optimization, and risk assessment.

Senior Android Engineer to contribute to a global banking platform. 5+ years building scalable mobile solutions, experience with RSA cryptography, and understanding of reactive programming paradigms required.

Senior DevSecOps Engineer will improve the security, reliability, and delivery velocity of Ledn's cloud platform. Responsibilities include hardening infrastructure, strengthening CI/CD pipelines, improving observability, and enabling engineering teams to ship safely. This role also carries regulatory responsibility in Spain, owning the availability, performance, and day-to-day operation of the entity's ICT assets and applications.

Mid/Senior Mobile Engineer to build iOS and Android apps for live surgical sessions, web dashboards, and real-time communication features. Experience with WebRTC, SignalR, and full-stack development is required.

Lead the development and execution of commercial plans for Key Accounts in Southern Spain. Cultivate relationships with retail partners and drive volume growth by identifying new product opportunities.

Senior Technical Lead will develop and maintain Unity-based frameworks and tools to improve game production efficiency. Lead technical initiatives for live games, ensuring smooth operations and scalable systems. Drive innovation by prototyping and integrating new features and technologies. Champion a unified codebase and collaborate with game teams to identify bottlenecks and deliver solutions.

STACBOND seeks an Export Area Manager to develop and implement sales strategies for international markets. Responsibilities include market research, client relationship management, and attending trade events. The ideal candidate has 2-3 years of experience in a similar role, advanced English skills, and proficiency in Microsoft Office and relevant software.

Support the Purchasing team by processing orders, coordinating with suppliers, and ensuring smooth delivery. This role requires strong communication, problem-solving, and organizational skills.

Full-Cycle Sales Account Executive will own the sales process from lead generation to closing deals. Responsibilities include prospecting, solution selling, and collaborating with internal teams to deliver tailored solutions. Requires 5+ years of full-cycle sales experience, preferably in SaaS or B2B tech. Fluent in English and Spanish is required. Occasional travel may be required.

Leads and manages a 3-person backoffice team, overseeing the full order lifecycle for B2B clients and bespoke projects. Ensures accuracy in invoicing, documentation, and commercial conditions. Acts as a key link between sales and internal teams. Requires a degree in Business Administration, International Business, or similar, with 5+ years of experience in commercial backoffice/customer service in B2B environments, including team management. Fluent English (C1 or above) is essential.

Crazy Pizza seeks a Sous Chef for its 2026 summer season. Previous restaurant experience, strong culinary skills, and the ability to work efficiently in a fast-paced environment are required.

Computer Vision / Machine Learning Engineer to join R&D team focused on improving license plate recognition, vehicle detection, and parking occupancy systems. Develop, optimize, and integrate deep learning models using Python. Analyze model performance, identify improvements, and contribute to production pipelines.

Senior Account Manager will own and grow a portfolio of key operator accounts, driving revenue growth through product adoption and strategic planning. Responsibilities include game launch and performance management, commercial upselling, and identifying new business opportunities. Requires 3+ years of experience in Account Management, Sales, or Commercial roles within the iGaming industry.

CMC Regulatory Affairs Specialist will support the development of CMCD strategies for OTC products, ensuring globally approvable dossiers. Collaborate with Regulatory, R&D, and Product Supply to compile CTD Module 3 and QOS documents. Requires a life sciences background, high proficiency in English, and significant experience in CMC/Module 3 creation and response to questions.

Sales Executive to develop new business in the printing industry, targeting Spain and French-speaking markets. Requires proven new business sales experience, fluency in Spanish and French, and strong communication and negotiation skills.

Project Manager for commercial due diligence and investment advisory projects in the energy transition sector. Analyze market trends, competitive positioning, revenue streams, and operational costs.

Foxelli seeks a Knitting & Crochet Content Creator to produce clear, hands-only tutorial videos. Responsibilities include filming, editing, and delivering high-quality content based on provided topics. Must have strong practical experience in knitting and/or crochet and the ability to film using a phone or simple setup.

Waiter/Waitress needed for a fix-term contract (May to October) at TheRooftop, a vibrant Barcelona bar and restaurant. Responsibilities include greeting customers, presenting menus, taking orders, and serving food and drinks. Must be fluent in Spanish and English, have experience in a bar/restaurant setting, and be able to work evenings and nights.

Leads and scales paid growth strategies across multiple mobile apps. Manages budgets, builds growth roadmaps, and optimizes performance across channels including Meta Ads, TikTok Ads, and Apple Search Ads. Analyzes performance data and collaborates with clients and internal teams to drive revenue growth.

Designs, develops, and implements NoSQL-based systems and AI-powered solutions for the fashion and retail supply chain. Leads development of .NET microservices, integrating Azure AI/ML services for use cases like visual search and product recommendations. Builds and optimizes MongoDB and Azure CosmosDB solutions, and deploys AI/ML models using ML.NET.