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:
You will be part of QuantumBlack 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.
We hire engineers into multiple product teams (e.g. agentic AI systems, digital twins, advanced analytics platforms). Team placement will depend on your skills and interests.
Our teams in QuantumBlack Labs are responsible for designing products that explain complex data landscapes and insights to our users, building frameworks and libraries that enable Data Scientists, Data Engineers, and Machine Learning Engineers to work effectively on large scale, complex projects-including open sourcing some of these frameworks, such as Kedro and ARK-and developing innovative, industry specific AI/ML solutions that embed our distinctive technical approach and business knowledge for enterprise clients.
As a Software Engineer II, you will collaborate with interdisciplinary teams to design and deliver innovative solutions. You'll continuously enhance your skills, address user needs, and contribute to building impactful, high quality products that drive real world outcomes.
In this role, you will take initiative in your learning and development. You will actively seek opportunities to grow by participating in training, conferences, and hands on projects. With a growing understanding of the investment and return of solutions, you will help create reusable components that accelerate product development across infrastructure, platforms, and services.
Your work will have a real world impact by driving innovation and delivering scalable solutions. By collaborating with diverse teams, you will contribute to McKinsey's shift toward asset based consulting, helping to create high value tools that address critical client needs and shape industry leading outcomes.
You will join our London or Madrid office and collaborate within cross functional teams to create and develop innovative tools and products by managing workstreams, engaging in discussions, and crafting technical solutions tailored to user needs. Your responsibilities will include working collaboratively in Agile teams through code reviews, pair programming, and iterative delivery, where you will deliver well structured, production quality code, own small to medium features end to end, participate in design discussions with senior engineers, write tests, document code, maintain high reliability, and engage in code reviews while contributing to team best practices.
This role offers an exceptional opportunity to grow as a technologist and leader. With McKinsey's global network, leadership development resources, and exposure to cutting edge challenges, you will expand your expertise, collaborate with inspiring teams, and play a key role in advancing technology innovation.
Your qualifications and skills