Top Tech Jobs & Startup Jobs in Spain

Develop cross-platform C++ mapping APIs and software components for native applications, mobile and desktop devices, Unity, and Unreal Engine. Responsibilities include designing APIs, implementing mapping visualization and rendering capabilities, collaborating with development teams, defining requirements, supporting real-world GIS scenarios, and solving complex application design challenges. The role requires modern C++, object-oriented design, algorithms, design patterns, and commercial software development experience.

Owns global accounting operations, month-end close, journal entries, accruals, reconciliations, financial statement analysis, audit-ready workpapers, and US GAAP reporting. The role also manages digital asset wallet and crypto subledger reconciliations, partners with Treasury on liquidity activities, and embeds AI-assisted workflows and automations into accounting processes.

Own fonio’s social media presence across channels, including content calendars, community management, and daily collaboration with content creators. Ghostwrite and grow founder and leadership profiles, particularly on LinkedIn and Instagram. Create engaging content that positions the B2B AI startup like a consumer brand, using AI tools to work efficiently and delivering strong written English content.

Manage and grow relationships with Twitch Partners and recruit high-potential creators. Responsibilities include creator onboarding, account support, stream reviews, community engagement, event participation, CRM documentation, performance reporting, trend analysis, and cross-functional collaboration with Marketing, Product, and Sales teams.

Design and develop Java services within distributed applications for document and image processing. Collaborate with the team and product owner, apply maintainability, testability, performance, security, and quality standards, participate in code reviews, and improve the platform. The role requires Java and Spring Boot expertise, SQL and NoSQL database knowledge, RabbitMQ experience, microservices familiarity, and fluency in English and Spanish.

Own supplier quality for critical electrical systems: develop supplier qualification and audit processes, drive supplier development and industrialization, lead root-cause investigations and corrective actions, support NPI and production readiness, and collaborate cross-functionally to scale robust quality systems internationally.

Provide 24/7 multilingual customer support for vehicle rentals through phone, email, and video calls. Assist with reservations, customer verification, pickup processes, self-service key-pickup troubleshooting, and issue resolution. Collaborate with international SIXT branches and promote additional products or services. The role requires fluency in German, English, and Spanish, strong communication and customer-service skills, flexibility for night shifts, teamwork, and a solution-focused approach.

Supports Regional Sales Managers and Product Managers with business development strategies, customer relationship management, purchase order collection, consignment optimization, expired-item replacement, and inventory reduction. Provides pre- and post-surgery support in hospitals, prepares surgical kits, checks returned equipment, and helps organize client workshops. Requires strong communication, prioritization, problem-solving, product-learning, and relationship-building skills, with frequent field travel.

Leads business development and sales capture across Europe for satellite intelligence solutions. Develops sales strategies, proposals, negotiations, forecasts, market expansion, and customer penetration initiatives targeting defense and intelligence agencies, commercial customers, systems integrators, and prime contractors. The role requires extensive international defense, intelligence, geospatial, or satellite market experience, strong technical and government sales expertise, and frequent travel.

Support regional sales and product managers with business development, customer relationship management, purchase orders, consignments, inventory reduction, and surgical kit preparation. Provide pre- and post-surgery support in hospitals, develop product expertise, assist with client workshops, and help achieve revenue, market share, customer satisfaction, and annual sales targets.