Experteer Overview You will help clients transform their businesses by building and coaching cutting-edge software and AI solutions. In a general, multidisciplinary team, you’ll deliver hands-on engineering work while mentoring client teams and shaping engineering culture. Expect cross-functional collaboration, high-impact projects, and a strong learning culture that accelerates your growth. This role offers meaningful client impact, diverse industries, and opportunities to lead technical delivery across the full stack and AI domains. Compensaciones / Beneficios
• Develop software products and services end-to-end for client engagements
• Mentor client teams and coach them on engineering best practices, user-centric design, and Agile values
• Co-create with clients to shape digital strategies and deliver solutions beyond the product
• Engage in cross-functional problem-solving with client leaders to drive scalable engineering cultures
• Collaborate across industries to turn digital ambitions into reality with hands-on technical work
• Be based in Madrid or Lisbon as part of QuantumBlack, contributing to industry-shaping products
• Grow as a technologist and leader while contributing to diverse projects and technologies Responsabilidades




• 2+ years of experience developing full-stack applications with readable, testable, maintainable, scalable code
• Demonstrated collaboration with developers and non-technical stakeholders within software teams
• Hands-on experience across frontend (TypeScript, React, Angular, Vue, Next.js, Tailwind) and backend (Python, Node.js, Java/Spring, C#/.
NET) plus databases (SQL, NoSQL, vector, ETL)
• Experience with LLM frameworks, prompt orchestration, agent frameworks, MCPs, evaluation frameworks, and cloud platforms (Azure, AWS, GCP), including Docker and CI/CD
• Strong focus on automated testing, logging, monitoring, and system reliability
• Experience in Agile teams, active sprint participation, and pair programming
• Excellent time management in autonomous work environments
• Business-level fluency in English and local office language Requisitos principales
• competitive salary
• comprehensive benefits package
• global network of technologists, designers, and strategists
• mentorship and structured learning programs
• apprenticeship culture
• opportunities for international collaboration

📌 Software Engineer (Madrid)
🏢 McKinsey u0026
📍 Madrid