T-Hub - AI Agents & LLM Engineer

T-Hub - AI Agents & LLM Engineer
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ENTER SUPERPOSITION

Form of Employment: Contract of Employment

Location: Warsaw/Remote/Hybrid work model

Have you ever asked yourself whether you'd rather work in a big-tech, software house or startup? At home or in the office? In international teams or polish? At T Hub, there's one answer - YES!

T Hub Poland is a dynamic, forward-thinking division in T-Mobile Poland, where technology matters! It’s a place where best talents converge to ideate, prototype, and implement cutting-edge solutions in international projects held in Deutsche Telekom Group.

What tasks await you?

• Design, build and deploy solutions based on Machine Learning, LLMs and AI agents with a focus on enterprise production applications
• Develop and implement AI-powered applications utilizing RAG, agentic workflows, multi-agent architectures and tool-calling frameworks.
• Build and optimize data pipelines for training, validation and inference
• Optimize models for performance, scalability and cost-effectiveness
• Build scalable and cost-effective AI solutions leveraging cloud-native architectures.
• Conduct integration with applications (FastAPI, microservices)
• Implement MLOps and LLMOps processes, including automated training, testing, deployment, monitoring, evaluation, guardrails, and model retraining.
• Design agent orchestration frameworks and advanced reasoning workflows for autonomous and semi-autonomous AI systems.
• Integrate different AI models into production systems working closely with other engineering teams
• Collaborate with data science, POs and IT teams to define requirements into implementation
• Ensure security, compliance, reliability, and observability of deployed AI solutions.
  What skills will be appreciated?

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• Minimum 5 years of experience in Software Engineering, Machine Learning, Data Science or AI-related roles.
• Strong hands-on experience designing and deploying AI agents and LLM-based applications in production environments.
• Deep understanding of Transformer architectures, RAG systems, embeddings, vector databases, prompt engineering, context management and agent orchestration.
• Expert-level proficiency in Python and modern AI frameworks.
• Strong experience with LangChain, LangGraph, SmolAgents, Google ADK, CrewAI or similar agent frameworks.
• Practical knowledge of building autonomous and multi-agent systems.
• Experience implementing advanced reasoning patterns, planning strategies and tool-augmented AI workflows.
• Strong understanding of software architecture, API development, microservices and distributed systems.
• Experience with SQL, data preprocessing, ETL pipelines, feature engineering and large-scale data processing.
• Experience with CI/CD pipelines and DevOps practices.
• Knowledge of MLflow, Airflow or similar MLOps platforms.
• Strong analytical, communication, and problem-solving skills.
• Fluent English communication skills, both written and spoken. Nice to Have:
• Experience with Generative AI evaluation frameworks and observability platforms (LangSmith, Arize, Galileo, Phoenix, etc.).
• Experience fine-tuning open-source models and working with model serving frameworks.
• Knowledge of graph-based AI architectures and knowledge graphs.
• Experience implementing AI governance, guardrails, and Responsible AI practices.
  Our offer for you

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Working at T Hub will offer you an unique and highly rewarding experience on IT market. As a leader in the telecommunications industry, we do not only provide a platform to hone your technical skills but also empower you to be a catalyst for innovation.

You'll have the opportunity to work at the forefront of modern technologies, from 5G to IoT and AI, shaping the future of connectivity.

Benefits

• No dress code

  • you can just be yourself here

• Medical,

sport and life insurance

packages at preferential terms

• Access to: Percipio, Coursera, Rodos learning platforms

• Access to our products and

services at preferential terms

• Employment contract-based cooperation

• Know Talent - receive training

or financial bonus for

recommending new

employees

What will your recruitment process be like?

A fair approach to all people who want to join T Hub means that:

• The recruitment process is transparent;
• Our recruitment decision is based solely on an assessment of your skills (your race, skin color, sexual orientation, gender identity, origin, disability, political view, appearance, or religion will not have any influence on yhe outcome of the process);
• Regardless of the outcome of the process, you will get detailed feedback.
  Who are we?

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We're one of the four European technological hubs of the Deutsche Telekom group, to which T-Mobile belongs. Thanks to this, you have the opportunity to work on global projects as well as collaborate with business partners from various industries. Whether it's automotive, security, banking, or countless other options - be sure to explore them all!