IT & Software

Software Engineer II - QuantumBlack Labs

McKinsey & Company

London · Greater London · United Kingdom

Overview

In this role you will join QuantumBlack Labs to design and deliver innovative AI/ML-powered software solutions for enterprise clients. You’ll work with cross-functional teams across product, data science, and engineering to build scalable, production-grade features. You’ll contribute to reusable components and frameworks while growing technically and as a contributor to a high-performance culture. This is a hands-on opportunity to shape cutting-edge tools that drive real-world impact and support client outcomes.

Pay / Benefits
  • world-class benefits
  • competitive salary
  • global community with 65+ countries
  • structured learning and apprenticeship programs
  • mentorship and leadership development
Responsibilities
  • Deliver well-structured, production-quality code and own small–medium features end-to-end
  • Engage in design discussions with senior engineers and participate in code reviews
  • Write tests, document code, and maintain high reliability across systems
  • Collaborate in Agile teams with pair programming and iterative delivery
  • Contribute to team best practices and development of reusable components across infrastructure, platforms, and services
  • Work with interdisciplinary teams to create innovative AI/ML tooling and solutions
  • Support learning and development through training, conferences, and hands-on projects
  • Collaborate with colleagues across different levels and roles to drive client outcomes
Key requirements
  • 2-5+ years of relevant experience
  • Experience building production-grade applications in at least one stack (backend, frontend, infra) with willingness to learn others
  • Ability to deliver features independently and participate in design discussions
  • Experience with pair programming
  • Exposure to or interest in modern AI systems (LLMs, agent frameworks, cloud deployment)
  • Python, TypeScript/JavaScript, React, Node, Flask, SQL, cloud infra, CI/CD
  • Strong time management and communication skills in English
  • Degree in computer science or related field, or equivalent practical experience
  • strong communication skills
  • collaboration with developers and non-technical stakeholders
  • time management
  • Python
  • TypeScript/JavaScript
  • React

Reference: WJ-747_30178840

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