Senior Software Engineer: Mentor, Build, Impact

QuantumBlack, AI by McKinsey; København; On-site; DKK 700,000 - 1,000,000; Full time

Job summary

QuantumBlack, AI by McKinsey is seeking software professionals to collaborate with a global network of technologists, designers, and strategists to transform client businesses with digital solutions. You will develop software products and services from the ground up, mentor client teams, and shape engineering cultures while expanding expertise across diverse industries and technologies.

You will work hands-on with clients to turn their digital ambitions into reality, coaching teams on

Qualifications

• Undergraduate or master’s degree; or equivalent experience
• 2+ years of experience developing full-stack applications by writing code that is readable, testable, maintainable, and scalable
• Demonstrated experience working collaboratively with other developers, as well as technical and non-technical people within software teams
• Hands-on experience across frontend (TypeScript, React, Angular, Vue, Next.js, Tailwind), backend (Python, Node.js, Java/Spring, C#/.NET), and databases (SQL, NoSQL, vector databases, 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 overall system reliability
• Experience working in Agile teams, including active participation in sprint ceremonies
• Experience pair programming collaboratively with other developers
• Exceptional time management to meet responsibilities in a complex autonomous environment
• Strong communication skills, both verbal and written, in English and local office language(s)

Responsibilities

• Collaborate with a global network of technologists, designers, and strategists to help clients transform their businesses through innovative digital solutions.
• Develop cutting-edge products, mentor client teams, and shape engineering cultures while growing expertise across diverse industries and technologies.
• Work hands-on with clients across industries to bring their digital ambitions to life and build software products from ground up while coaching client teams.
• Partner with client leadership to drive cross-functional problem solving and deliver scalable engineering cultures for long-term success.

Skills

Full-stack development

Agile teamwork

Time management

Communication skills

Pair programming

Education

Bachelor/Master degree or equivalent experience

Tools

TypeScript

React

Python

Node.js

Java

C#/.NET

SQL/NoSQL

LLM frameworks & prompt orchestration

Azure/AWS/GCP

Docker

CI/CD

Job description

QuantumBlack, AI by McKinsey is seeking software professionals to collaborate with a global network of technologists, designers, and strategists to transform client businesses with digital solutions. You will develop software products and services from the ground up, mentor client teams, and shape engineering cultures while expanding expertise across diverse industries and technologies.

You will work hands-on with clients to turn their digital ambitions into reality, coaching teams on