Cellnex Telecom Tech Stack

Europe's largest shared telecom tower and fiber infrastructure operator

Telecommunications Barcelona, Barcelona 1,001–5,000 employees Privately Held

Cellnex operates over 130,000 telecom sites across 10 European countries, with core infrastructure spanning towers, small cells, DAS, fiber, and datacenters. The hiring mix is heavily weighted toward senior operations and HR roles, reflecting the capital-intensive, regulatory-heavy nature of managing critical telecom infrastructure at scale. Active projects center on fiber network rollout (Nexloop national network), cybersecurity hardening of critical infrastructure, and cost optimization across European mobility and benefits — suggesting internal focus on both growth execution and operational maturity.

Tech Stack 12 technologies

Core StackLinux Jira SAP Cisco Power BI Microsoft Office SIEM SOAR Windows SAP SuccessFactors Learning Agora Microsoft 365

What Cellnex Telecom Is Building

◆Challenges

Cost-effective mobility and benefits programs
Protecting critical infrastructure
Optimizing optical routes
Risk mitigation in telecom construction
Redondance et performance
Compliance with legal and regulatory requirements
Vendor management and negotiations
Global benefits compliance
Gestion des appels d’offres
Cost estimation for fiber services

▲Active Projects

Strategic cybersecurity projects on critical infrastructure
Assignment cost tracking and reporting
Fiber services pre-sales studies
Apd design for client & network
Doe reconciliation of works
Nexloop national fibre optic network
Public market offers development
Global employee benefits strategy
Global mobility framework
Continuous improvement of mobility processes

Hiring Activity

Accelerating15 roles · 7 in 30d

Department

Ops

Finance

Security

Construction

Engineering

Marketing

Sales

Seniority

Senior

Mid

Intern

Junior

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About Cellnex Telecom

Cellnex is Europe's largest telecommunications infrastructure operator, managing a portfolio of over 130,000 sites across Spain, France, the United Kingdom, Italy, Poland, and six other European countries. The company provides shared-access infrastructure services to mobile operators and service providers, reducing deployment costs and expanding coverage in underserved regions. Cellnex operates multiple asset classes — towers, small cells, distributed antenna systems (DAS), fiber, and datacenters — and is listed on the Spanish Stock Exchange as part of the IBEX35 and Euro Stoxx 100 indices. The company employs 1,001–5,000 people and maintains active construction, engineering, and operational teams across its European footprint.

HeadquartersBarcelona, Barcelona

Company Size1,001–5,000 employees

Hiring MarketsFrance, Spain, United Kingdom

Frequently Asked Questions

What countries does Cellnex hire in?

Cellnex is actively hiring in France, Spain, and the United Kingdom, with a focus on senior operations, HR, and finance roles.

What is Cellnex's tech stack?

Core systems include SAP, Microsoft 365, Jira, Power BI, Cisco networking, SIEM and SOAR for security, and SAP SuccessFactors for learning and talent management.

What major infrastructure projects is Cellnex working on?

Active projects include Nexloop, a national fiber optic network; fiber services pre-sales and route optimization; and strategic cybersecurity hardening of critical infrastructure across European operations.