Top Tech Jobs & Startup Jobs in Madrid

Join a cross-functional Agile team to develop backend components using C#/.NET in cloud-based, microservices architectures. Participate in design, code reviews, testing (unit, integration, functional), documentation, debugging, and ongoing maintenance.

Partner with leaders across Creative, Growth, Tech and Ops to design and run performance management, compensation, onboarding, engagement, HR ops, compliance, L&D and people analytics. Coach managers, implement competency frameworks, run pulses and OKR-linked KPIs, automate HRIS workflows, and measure impact via eNPS, retention, SLAs and time-to-proficiency.

Design end-to-end product experiences for BJAK's financial products. Create user flows, wireframes, prototypes and polished interfaces; build scalable design systems; collaborate with product and engineering; iterate using data and user feedback to improve usability and consistency across mobile and web.

Lead the Human Data function to deliver high-quality training data and evaluations. Manage Team Leads and AI Tutors, define annotation guidelines and QA processes, scale operations globally, recruit and develop talent, collaborate with engineering and program teams, and report outcomes to senior leadership.

Lead and grow a team of software engineers building Playgami platform services. Own technical quality, architecture, and delivery for reliable, scalable, low-latency distributed systems. Collaborate with product, design, and leadership while mentoring engineers and driving hiring and performance development.

As the first designer at turbopuffer, you'll own designs for products, web, and marketing, ensuring a mix of whimsy and professionalism across all surfaces.

Edit and repurpose poker video content, localize/dub into assigned GEO languages, manage and schedule short-form social accounts, track workflows and performance, use AI tools to support translation and operations, and assist with social media administrative tasks.

Own end-to-end UI/UX and production-ready frontend code for an AI-native cybersecurity platform. Build and maintain a React+TypeScript+Tailwind design system, translate complex security workflows into intuitive interfaces, define human-in-the-loop AI interaction patterns, collaborate with backend engineers and security researchers, and contribute to component architecture and frontend standards.

Own end-to-end post-sales lifecycle for strategic EMEA hotel accounts: onboarding, adoption, retention, and renewal. Act as senior advisor on revenue strategy, run strategic reviews and advanced training, use AI-assisted analytics for ROI and churn risk, design adoption plans, mentor junior CSMs, and maintain accurate Salesforce account records.

Lead architecture and implementation of scalable full-stack features using NestJS and Next.js, integrate LangChain-driven AI, manage PostgreSQL schemas and performance, build responsive UIs with Tailwind CSS, implement authentication with Clerk, and ensure reliability with Puppeteer-based testing and automation.