Senior AI Engineer
At a glance
Senior AI Engineering role at Nn Group (Wdexternal). Prague · full-time.
Pay not stated AI Engineer salary
aimlroles summary, based on the employer's posting.
What you'll do
- Take AI solutions from design through production, including ML models and GenAI or LLM applications
- Prepare data, develop models, deploy them, monitor results and keep improving the full solution
- Build LLM applications such as RAG pipelines, AI agents and Copilot-style tools
- Improve performance, scale, cost efficiency and user experience across AI models and systems
- Create AI tools for document checks, claims automation and chatbots, then adapt them for use across countries
What you bring
- At least five years of hands-on ML or AI engineering, spanning traditional machine learning, LLMs and GenAI
- Strong Python skills and experience with ML frameworks such as TensorFlow, PyTorch or Keras
- Practical knowledge of agentic AI, RAG and MLOps or LLMOps, including tools such as LangChain or LangGraph
- Cloud, CI/CD and container experience, plus familiarity with REST APIs, FastAPI and integration patterns
- Advanced English for working with international colleagues
Who this fits
This senior role suits an experienced AI engineer who can build and operate both conventional ML and LLM-based applications. You'll work in agile teams and help scale solutions across countries. The role is based in Prague, with flexibility to work from home or the office.
From the employer
We are looking for a Senior AI Engineer to join our team in Czechia! Do you want to help scale AI solutions across NN and deliver real business impact? Then this could be the role for you.
Our mission at NN
Together with your colleagues, you will build and scale AI-powered solutions that improve business processes across multiple NN business units in Europe. This includes supporting underwriters with automated document checks, enabling end-to-end claims automation, and developing chatbot solutions.
You will work in agile teams to design, build, test, and run AI-driven applications, while contributing to solution design and making smart engineering trade-offs. A strong focus will be on scaling solutions across countries to maximize impact.
Your responsibilities
Design, build, and bring AI solutions into production, from traditional ML models to modern GenAI/LLM applications.
Develop, refactor, and operationalize machine learning models using Python and frameworks such as TensorFlow, PyTorch, or similar.
Build and deploy LLM-powered applications (e.g. RAG pipelines, AI agents, Copilot-like solutions) using modern tooling (LangChain, LangGraph, etc.).
Own the full lifecycle of AI solutions, from data preparation and model development to deployment, monitoring, and continuous improvement.
Optimize models and systems for performance, scalability, cost efficiency, and user experience.
What we expect from you
At least 5 years of experience in ML/AI engineering, including hands-on work with LLMs, GenAI, and traditional ML.
Proficiency in Python and ML/AI frameworks (TensorFlow, PyTorch, Keras), with experience in agentic AI, RAG, and MLOps/LLMOps practices (e.g. LangChain, LangGraph, Databricks Mosaic AI).
Strong knowledge of cloud platforms (Azure preferred), CI/CD, and containerization (Docker, Kubernetes).
Familiarity with RESTful APIs, FastAPI, and integration patterns.
Advanced English proficiency is required to work in an international environment.
Not flawless, but we´ve got this for you
To a large extent, we give you the flexibility to work where you feel most comfortable, whether in the office or from home. On top of that, we also contribute to your home office expenses every month.
We value work-life balance, which is why we offer flexi vacation with unlimited days off. This gives you the freedom to take time off as needed, ensuring flexibility and well-being for both personal and family needs.
On top of your base salary, you’ll enjoy an annual bonus and regular salary reviews, a monthly meal allowance, CZK 20,000 per year in the Cafeteria, the option to use a MultiSport card, and a contribution to supplementary pension savings.
We believe that your professional and personal growth is crucial, which is why we provide you with a tailor-made professional training system.
Your friends and acquaintances are a valuable source of talent for us, which is why we offer up to CZK 60,000 as a reward for recommending a suitable candidate.
A business laptop and an iPhone with a paid O2 tariff and data package are essential tools for your work, which we will provide.
What is the hiring process with us like
Once we receive your application, including your CV in English with your contact details (phone number and email address), Petra, our Talent Acquisition Partner, will review it carefully.
If your profile matches the role, Petra will reach out for a brief phone conversation to share more about the position and learn about your experience and expectations. If the role isn’t the right fit, we’ll still provide feedback.
The selection process usually includes two interview rounds, most often held online, as well as a case study. If an in‑person meeting is needed, we’ll let you know in advance.