Data Scientist II - QuantumBlack Labs

Do you want to do work that matters, alongside supportive leaders who will help you grow faster than you ever thought possible? Are you a creative problem-solver who is energized by challenges?
You’ve come to the right place.

You will be part of Quantum Black Labs and work in a team of software engineers, product managers, data scientists, data engineers and designers to create innovative products and new technologies that accelerate and scale our work in artificial intelligence and machine learning. Our teams in Quantum Black Labs are responsible for:

• Designing products that can explain complex data landscapes and insights to our users
• Building frameworks and libraries for Data Scientists, Data Engineers and Machine Learning Engineers to work in large-scale, complex projects
• Building innovative industry-specific AI/ML solutions that embeds our distinctive technical approach and business knowledge for enterprise clients

You will create scalable data science solutions, enhance existing assets, and work with diverse datasets to address complex challenges across industries. Collaborating with global, multidisciplinary teams, you'll drive innovation, develop impactful technologies, and grow as a leader in AI and machine learning. You will work with diverse and complex data sets, develop data science products, and write optimized code to enhance our internal tools.

Collaborating with data scientists, engineers, and designers, you will leverage advanced math, statistics, and machine learning to deliver impactful solutions and grow the firm’s capacity to deliver r work will help clients address their most pressing challenges by deploying cutting‑edge technology and amplifying impact across industries. You will also contribute to the broader data science community by writing papers, presenting at conferences, and sharing knowledge with colleagues.

You will be based in London or Madrid and collaborate closely with data scientists, data engineers, machine learning engineers, designers, and product managers around the world. Together, you’ll work on interdisciplinary projects to solve complex business challenges across a range of industries. Collaborating with Quantum Black, AI by McKinsey & Quantum Black Labs leadership, client executives, and technical experts, you will lead the development and application of cutting‑edge machine learning and AI solutions to drive measurable business impact.

You’ll grow as a technologist and leader, working in a collaborative, multidisciplinary environment. You’ll push the boundaries of innovation and technology while shaping the future of AI and data science alongside inspiring individuals.

Driving lasting impact and building long‑term capabilities with our clients is not easy work. You are the kind of person who thrives in a high performance/high reward culture - doing hard things, picking yourself up when you stumble, and having the resilience to try another way forward. In return for your drive, determination, and curiosity, we’ll provide the resources, mentorship, and opportunities you need to become a stronger leader faster than you ever thought possible.

Your colleagues—at all levels—will invest deeply in your development, just as much as they invest in delivering exceptional results for clients. Every day, you’ll receive apprenticeship, coaching, and exposure that will accelerate your growth in ways you won’t find anywhere else. When you join us, you will have:

• Continuous learning:Our learning and apprenticeship culture, backed by structured programs, is all about helping you grow while creating an environment where feedback is clear, actionable, and focused on your development. The real magic happens when you take the input from others to heart and embrace the fast‑paced learning experience, owning your journey.
• A voice that matters:From day one, we value your ideas and contributions. You’ll make a tangible impact by offering innovative ideas and practical solutions, all while upholding our unwavering commitment to ethics and integrity. We not only encourage diverse perspectives, but they are critical in driving us toward the best possible…