T-Mobile Polska Tech Stack

Telecom operator scaling cloud infrastructure and AI/ML capabilities across hybrid environments

Telecommunications Warszawa, Mazowieckie 1,001–5,000 employees Public Company

T-Mobile Polska is a Deutsche Telekom subsidiary operating a 1,000–5,000-person telecom and technology organization in Poland. The tech stack reveals a major infrastructure modernization underway: heavy investment in GCP (adopting), Kubernetes, and containerization (Docker, FastAPI) alongside emerging AI/ML tools (LangChain, LlamaIndex, Vertex AI, MLflow), while moving away from Oracle and Hadoop. Engineering-led hiring (14 roles) focused on senior and mid-level talent signals rapid scaling of cloud platforms, RAG infrastructure, and hybrid data architectures—core projects that align with the pain-point pattern of legacy load-balancer refactoring and cost optimization across on-premise and cloud.

Tech Stack 98 technologies

Core StackPython LangChain FastAPI Docker MLflow Apache Airflow Kubeflow SAP RAG Ansible AWS Terraform Kubernetes Prometheus Grafana Dynatrace Jira Confluence GitLab Vertex AI Looker BigQuery Wireshark LlamaIndex SQL Git F5 BIG-IP Terragrunt OpenTofu OpenSearch+59 more

AdoptingJava GCP

ReplacingOracle Hadoop

What T-Mobile Polska Is Building

◆Challenges

Refactoring legacy load balancer configurations
Ensuring platform stability
Infrastructure reliability
Incident management
Standardizing load balancer configuration process
Automating load balancer configuration
Optimizing cloud costs
Maintaining high availability
Hybrid cloud/on-premise integration
Root cause analysis

▲Active Projects

Rag infrastructure
Caas and paas platform development
Designing f5 big-ip solutions
Autonomous systems platform
Automation of patches and upgrades
Automating load balancer configuration with ansible
Implementing load balancer configuration lifecycle process
Expanding landing zone gcp
Optimizing cloud costs and performance
Hybrid cloud/on-premise data platform architecture

Hiring Activity

Accelerating30 roles · 20 in 30d

Department

Engineering

Data

Ops

Design

Marketing

Research

Sales

Seniority

Senior

Mid

Lead

Manager

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About T-Mobile Polska

T-Mobile Polska delivers mobile, fixed-line, and enterprise services as part of Deutsche Telekom's European footprint. Operationally, the company is shifting from legacy on-premise infrastructure toward a hybrid cloud model centered on GCP, Kubernetes, and modern observability (Prometheus, Grafana, Dynatrace). Active projects span CaaS/PaaS platform development, autonomous systems, RAG infrastructure for AI features, and cost optimization across hybrid workloads. The organization employs roughly 1,000–5,000 people and is actively hiring across engineering, data, and operations roles, concentrated in Poland.

HeadquartersWarszawa, Mazowieckie

Company Size1,001–5,000 employees

Hiring MarketsPoland

Frequently Asked Questions

What cloud platforms does T-Mobile Polska use?

AWS is in active use; GCP is being adopted. The company is expanding GCP landing zones and optimizing hybrid cloud/on-premise data platform architecture. They are migrating away from Oracle and Hadoop.

What is T-Mobile Polska working on?

Key projects include RAG infrastructure, CaaS/PaaS platform development, F5 BIG-IP solution design, autonomous systems, load-balancer automation and refactoring, GCP landing-zone expansion, and hybrid cloud/on-premise data architectures.