AI Engineering Intern Legacy Code Intelligence.

Amsterdam 36 hours/week Hybrid (2 days in office)

The Tribe DevEx & System Engineering is part of INGs Engineering & Reliability organisation driving endtoend system optimisation increasing engineering productivity and enhancing the developer experience across ING. We build the foundational engineering systems and intelligent tooling that empower thousands of developers worldwide to deliver highquality secure and resilient software.

The team

You will join the AI Legacy Workflow Team a group of engineers dedicated to exploring how AI LLMs and agentic workflows can support the understanding and evolution of large complex legacy codebases. Our team focuses on building intelligent pipelines and graphbased insights that help ING engineers navigate legacy systems more efficiently reduce cognitive load and make betterinformed decisions during modernization efforts.

We work at the intersection of software engineering machine learning code analysis and developer tooling with the ambition of transforming legacy code into navigable searchable and AIinterpretable knowledge.

Roles and responsibilities

As an AI Engineering Intern you will support both research and engineering activities within the AI Legacy Workflow domain.

You will:

• Analyse large and complex ING codebases to extract structural and behavioural relationships.

• Build relational graph databases that model classes modules functions APIs and dependency flows across systems.

• Apply multiple Large Language Models to the same codeanalysis tasks and compare their accuracy consistency and evaluation metrics.

• Develop prototype workflows for AIassisted code understanding including prompt pipelines agent graphs and structured output schemas.

• Assist in defining benchmark datasets and evaluation criteria for LLMbased code analysis.

• Collaborate closely with engineers architects and platform specialists to integrate insights into INGs broader developer experience ecosystem.

• Support documentation reporting and refinement of findings contributing both to INGs engineering value and to academic requirements for the internship or thesis.

Technologies and frameworks you may work with

(You are not expected to know these all in advance.)

• Python Java and static analysis frameworks

• LangGraph agentic AI and promptorchestration tools

• LLMs (Azure OpenAI OpenAI GPT models opensource models)

• Graph databases such as Neo4j or internal ING equivalents

• CI/CD tooling such as Azure DevOps

• Program analysis methods such as controlflow graphs AST parsing and dependency extraction

How to succeed

We hire talented people like you for your potential and curiosity. You will thrive in this role if you:

• Have strong fundamentals in software engineering or program analysis.

• Are excited by the challenge of understanding complex systems and extracting meaningful structure.

• Are motivated to work handson with Large Language Models comparing their strengths and weaknesses.

• Enjoy designing structured experiments and documenting results clearly.

• Communicate well with both technical and nontechnical stakeholders.

• Show initiative a growth mindset and willingness to explore new technologies.

Rewards and benefits

This is a great opportunity to train with highly skilled people who are experts in their field. Youll do a lot and learn a lot not only about your specialist area and the bank but also about yourself and whether this type of environment is right for you.

Youll also benefit from:

• Internship allowance of 700 EUR based on 36 hours work week

• Your own work laptop

• Hybrid working to blend home working for focus and office working for collaboration and co-creation

• Personal growth and challenging work with endless possibilities

• An informal working environment with innovative colleagues

During the duration of your internship at ING it is mandatory to be enrolled at a Dutch university (or EU-university for EU passport holders).

Want to apply directly

Please upload your CV and motivation letter by clicking the Apply button.

About our internships

Every year more than 350 students join our internship program. While there are no guarantees about your future many of our former interns move into a permanent role or onto our International Talent Programme (traineeship).

Whatever happens an internship at ING is the ideal opportunity to meet a wide variety of people to build up your own network and to learn about many different aspects of banking put simply its a great start to your career.