O2 Czech Republic Tech Stack

Czech telecom operator building AI and data platforms at scale

Telecommunications Praha 5,001–10,000 employees Founded 2006 Public Company

O2 Czech Republic is a major telecommunications operator scaling AI and data infrastructure. The tech stack reveals a data-science and ML-heavy engineering culture: Python, PyTorch, TensorFlow, PySpark, Kafka, and cloud platforms (Azure, AWS) sit alongside traditional telecom infrastructure (Cisco, Broadcom, HPE). Active projects span AI platform development, data lake management, and CDP tooling—all data-driven—while pain points cluster around technical debt, business-technical alignment, and financial consolidation, suggesting a large regulated organization managing both innovation and compliance simultaneously.

Tech Stack 33 technologies

Core StackPython NumPy Pandas scikit-learn PyTorch TensorFlow PySpark Kafka AWS Docker Kubernetes Salesforce Cisco Linux VMware Hyper-V Azure DataHub Bloomreach Exponea Adobe Broadcom HPE Dell EMC IBM NetApp Fibre Channel Windows AIX HP-UX+3 more

What O2 Czech Republic Is Building

◆Challenges

Avoiding technical debt
Aligning business and technical requirements
Consolidating group financial statements
External audit preparation
Financial reporting compliance
Improving recruitment efficiency
Enhancing hiring processes
Improving design workflow

▲Active Projects

Ai platform development
Data lake management
Architecture for new bigdata and ai applications
Cdp tool development
Customer journey enhancement
Monthly ifrs consolidation
Quarterly group reporting
Ad hoc financial analysis
Data-driven recruitment optimization
Senior role sourcing

Hiring Activity

Accelerating7 roles · 5 in 30d

Department

Engineering

Marketing

Design

Finance

Seniority

Senior

Mid

Lead

Notable leadership hires: Tech Lead

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About O2 Czech Republic

O2 Czech Republic is a publicly traded telecommunications operator serving the Czech market since 2006, with 5,000–10,000 employees headquartered in Prague. The company operates a dual mandate: delivering connectivity and mobile services to consumer and business customers, while building internal AI, data lake, and customer data platform capabilities. Current engineering efforts focus on architecture for big-data and AI applications, customer journey enhancement via CDP tooling, and data-driven recruitment optimization. Finance and compliance work includes monthly IFRS consolidation, quarterly group reporting, and external audit readiness.

HeadquartersPraha

Company Size5,001–10,000 employees

Founded2006

Hiring MarketsCzechia, Canada

Frequently Asked Questions

What is O2 Czech Republic's tech stack?

Core: Python, NumPy, Pandas, PyTorch, TensorFlow, PySpark, Kafka. Infrastructure: Azure, AWS, Docker, Kubernetes. Enterprise: Salesforce, Adobe, Cisco, Broadcom, HPE, Dell EMC, IBM, NetApp. Platforms: DataHub, Bloomreach, Exponea.

What is O2 Czech Republic working on?

AI platform development, data lake management, and big-data/AI architecture. Customer-facing: CDP tool development and customer journey enhancement. Internal: monthly financial consolidation, quarterly group reporting, and data-driven recruitment optimization.