QUALIFICATIONSDegree in computer science or related field, or equivalent practical experience2-5+ years of relevant experienceExperience building production-grade applications in at least one part of the stack (backend, frontend, infra), with willingness to learn others as needed.Ability to deliver features independently, participate in design discussions, and collaborate with senior engineers on system architecture.Experience pair programming collaboratively with other developersExposure to or interest in working with modern AI systems (LLMs, agent frameworks, cloud deployment). ML experience is a plus but not required.Experience with cloud deployment (Azure/AWS/GCP), containerization (Docker), frontend frameworks (React), CI/CD environments, and interest in agentic systems, LLMs, or workflow automationDemonstrated experience working collaboratively with other developers, as well as technical and non-technical people within software teamWhile we advocate for using the right tech for the right task, we often leverage the following technologies: Python, TypeScript/JavaScript, React, Node, Flask, SQL, cloud infra, CI/CD).Strong communication skills, both verbal and written, in English and local office language(s), with the ability to adjust your style to suit different perspectives and seniority levels.WHO YOU'LL WORK WITHDriving 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.Every day, you'll receive apprenticeship, coaching, and exposure that will accelerate your growth in ways you won’t find anywhere else.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. Global community: With colleagues across 65+ countries and over 100 different nationalities, our firm’s diversity fuels creativity and helps us come up with the best solutions for our clients. On top of a competitive salary (based on your location, experience, and skills), we provide a comprehensive benefits package to enable holistic well-being for you and your family.WHAT YOU'LL DOYou 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). 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.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.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-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.
Software Engineer - AI/ML in London employer: Mckinsey & Company
As a Portfolio Manager - Events at our firm, you will thrive in a dynamic and high-performance environment that champions continuous learning and diverse perspectives. We offer exceptional benefits and a global community of colleagues, ensuring your contributions are valued and impactful from day one. With structured mentorship and opportunities for professional growth, you'll be empowered to make a real difference while enjoying a collaborative and innovative work culture.
