Commerzbank Digital Technology Centre Bulgaria
AI Prompt Engineer Intern
Skills
12 days ago
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Important information
Contract type:
Permanent
Location:
Sofia, Bulgaria
Work mode:
Onsite
Published on:
17 October 2026
What they need
Do you want to gather professional experience while learning?
Become part of Commerzbank DTC Bulgaria internship program – AcceptIT. It aims to provide you with essential work and IT skills and prepare you for a future employment and continuing career within our center.
Commerzbank is a leading international commercial bank with branches and offices in almost 50 countries. We are looking for an intern to join our Flexhub team.
Program overview:
- Duration: 9 months
- Conditions: Paid internship (full-time)
- Team: Flexhub
If you are:
- Currently a bachelor’s or master’s student in a technical major;
- Highly motivated to learn new things and shape your future career in IT;
- Familiar with Generative AI and Prompt Engineering ,
- Have knowledge of Python, LangChain, RAG & Vector Databases, Model Fine-Tuning, API Integration and Agentic AI Workflows
- Familiar with Azure OpenAI Service, Knowledge Graphs, Semantic Search, Model Destillation and Multi-modal Models
- High analytical thinking with attention to details and problem-solving attitude.
- Customer orientation and proactive and ownership attitude to deliver results on time and with highest quality.
- Excellent collaboration and communication skills.
- High flexibility and adaptability to a fast-changing environment.
- Good team player with high ability to work in international teams.
- Fluency in English – both written and spoken.
- German would be considered as an advantage.
You will get the chance to :
- Learn from and be mentored by some of the best IT experts;
- Develop and refine complex prompts and chains to solve specific business problems.
- Work with developers to integrate LLM capabilities into wider application architectures.
- Implement RAG (Retrieval-Augmented Generation) pipelines to ground model responses.
- Establish evaluation metrics to measure prompt performance and drift.
- Resolve issues related to hallucinations or latency.
- Create automated test suites for prompt regression testing.
- Contribute to the internal library of prompt patterns and best practices.
- Work in a real agile environment and collaborate with international teams who are friendly, supportive and open to new opinions and ideas;
- Support the teams with various tasks related to the projects;
- Get the opportunity for full-time employment after successfully completing the program;
Commerzbank is proud to be an equal opportunity employer, committed to creating a diverse environment. All qualified applicants will receive consideration for employment without regard to gender, race, color, national origin, religion, gender identity or expression, sexual orientation, genetics, disability, age, or any other characteristics.
Ready to accept the challenge? Apply now with your up-to-date CV in English.
Due to the high volume of applications, we contact only the candidates who best match the role requirements. If you do not hear from us within 14 days, please consider that we won't proceed with your application at this stage.
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