Senior AI Engineer - Center of Excellence

Columbus A/S; København; On-site; DKK 900,000 - 1,400,000; Full time

Job summary

Columbus A/S in Copenhagen hires three senior engineers for its Group AI engineering team to design and build next-gen AI-powered systems at enterprise scale on the Microsoft platform.

You will work directly with the VP Group AI, building systems that transform how thousands of people work across the Nordics and beyond, with no layers or committees, shipping and learning continuously.

Qualifications

• Strong expertise in LLM application design, including prompt engineering, agent frameworks, and evaluation.
• Good understanding of data as a foundation for AI driven insights.
• Experience building scalable, production-grade AI systems, with focus on context management, cost optimization, and real-world deployment.
• Proven ability to design multi-agent architectures where AI systems collaborate effectively.
• Hands-on experience with Microsoft 365 ecosystem (Graph, Teams, SharePoint) and cloud-native platforms like Azure.
• Solid background in data and retrieval systems, including vector search, embeddings, document databases, and RAG architectures.
• Skilled in building robust, event-driven and API-based systems with strong focus on reliability, security, and enterprise compliance.

Responsibilities

• Design and architect AI applications with emphasis on prompt engineering and agent frameworks.
• Integrate tools and models with scale, ensuring cost efficiency and governance.
• Build robust AI systems with context management and reliable deployment in enterprise environments.
• Develop multi-agent architectures enabling collaborative AI workflows.
• Leverage Microsoft 365 ecosystem and Azure for enterprise integration and security.
• Implement knowledge retrieval using vector search, embeddings, and RAG patterns.
• Ensure reliability, security, and compliance across AI platforms.

Skills

LLM application design

Data for AI insights

Production-grade AI systems

Multi-agent architectures

Microsoft 365 / Azure

Vector search / Retrieval

Event-driven / API-based systems

Tools

Microsoft Graph

Teams

SharePoint

Azure

Job description

Welcome to Columbus! We strive to be the preferred digital advisor; we win customers with unique industry expertise, and we aim to guide and navigate businesses into a successful digital transformation and future. Location: Copenhagen, Nordhavn

About this role

Enterprise software is going through its biggest shift in decades. Applications are moving from deterministic workflows to intelligent, agentic systems that understand context, remember preferences, and act on behalf of users. This isn’t a future prediction - it’s happening now, and Columbus is building at the frontier of it.

We’re hiring three senior engineers to form the core of our Group AI engineering team.

Together, you’ll design and build the next generation of AI-powered systems that will transform how thousands of people work - across the Nordics and beyond. You’ll work directly with the VP Group AI. No layers. No committees. You build, you ship, you learn.

This is not a consulting engagement or a proof-of-concept. It’s production engineering at enterprise scale, on the Microsoft platform, using the most advanced AI models available today.

What you will bring

We are looking for someone who have/is

• Strong expertise in LLM application design, including prompt engineering, agent frameworks, and evaluation
• Good undetstanding of data as a foundation for AI driven Insights
• Experience building scalable, production-grade AI systems, with focus on context management, cost optimization, and real-world deployment
• Proven ability to design multi-agent architectures where AI systems collaborate effectively
• Hands-on experience with Microsoft 365 ecosystem (Graph, Teams, SharePoint) and cloud-native platforms like Azure
• Solid background in data and retrieval systems, including vector search, embeddings, document databases, and RAG architectures
• Skilled in building robust, event-driven and API-based systems with strong focus on reliability, security, and enterprise compliance

If you don’t match all these qualifications above but is an expert in either of the three, don’t hesitate to apply:

AI Application

You bring deep experience in LLM application architecture, including prompt engineering, agent frameworks, tool integration, and model evaluation. You have a strong understanding of context window management, cost optimisation, and model behaviour at scale, combined with expert knowledge of AI Security and AI Governance.

AI Automation & Integration

You have hands-on experience with Microsoft Graph, Teams, SharePoint, and the broader Microsoft 365 ecosystem. In addition, you possess expert knowledge of AI Security and AI Governance as they relate to automation, integrations, and enterprise-scale AI solutions.

AI Infrastructure

You bring extensive experience with document databases, vector search technologies, and embedding models. You understand RAG architectures, including chunking, reranking, hybrid search, and citation grounding, and can design data governance frameworks that meet enterprise compliance requirements such as DLP, auditing, and retention. You have experience building scalable knowledge retrieval systems, supported by expert knowledge of AI Security and AI Governance.

After the recruitment process has ended, we will ask you about your experience as a candidate. It only takes a few seconds to answer, and it helps us improve our recruitment process.

Working at Columbus

People always come first at Columbus. We are a global consulting firm with local presence, helping companies with their digital transformation and to thrive through technology, data, and human insight. We are also a workplace where you, as an employee, can develop your career and get support through clear and structured career paths. Our culture is built on trust, collaboration, curiosity, and a shared commitment to deliver value to our clients. Whether you’re experienced or just starting out in your career, you’ll find the freedom to explore ideas, challenge the familiar, and shape your own path with us. With more than 1,500 colleagues in over 10 countries, we combine global perspectives with local understanding. What unites us is our belief in creating meaningful impact – for our employees, our clients, and the journey ahead.

Let’s thrive, grow, and shape the future together!

About Columbus

People always come first at Columbus. We’re a global digital consultancy with a local presence, helping businesses transform and thrive through technology, data, and human insight. Just as importantly, we are a workplace where careers are nurtured, and development is supported through clear, structured career paths.

Our culture is built on trust, collaboration, curiosity, and a shared commitment to delivering customer success. Whether you’re an experienced professional or just starting out, you will find the freedom to explore ideas, challenge convention, and shape your own path.

With app. 1,500 colleagues across more than 8 countries, we bring global perspectives and local understanding. What unites us is our belief in creating meaningful impact - for our people, our customers, and the journey ahead.