SFR Tech Stack

France's largest alternative telecom operator serving 26+ million mobile and broadband customers

Telecommunications Paris, Île-de-France 5,001–10,000 employees Founded 1987 Privately Held

SFR operates France's second-largest telecom network with a data stack built on Python, Java, Scala, Spark, and Hadoop, now consolidating on GCP for analytics (BigQuery, Bigtable, Looker). The hiring mix is sales-heavy (6 of 17 active roles) with only 2 engineering positions, reflecting a mature operator focused on customer acquisition and retention rather than platform-building. Active projects span network reliability, ESG compliance reporting, and digital conversion optimization—pain points signal struggles with data quality, network maintainability, and cost control in a competitive market.

Tech Stack 18 technologies

Core StackPython Java Scala Apache Spark Hadoop AWS BigQuery Looker Trello GCP Bigtable Data Studio HTML 4G 5G

AdoptingGCP

What SFR Is Building

◆Challenges

Concurrent market differentiation
Network operability improvement
Network maintainability improvement
Amélioration performance esg
Conformité réglementations esg
Qualité des données
Optimizing digital front performance
Optimizing procurement costs
Achieving cost savings
Ensuring competitive pricing

▲Active Projects

Network operability improvement projects
Network evolution projects
Plan d'adaptation changement climatique
Production rapport esg altice france
Pilotage chantiers fiabilisation données
Conversion optimization on website and online store
A/b testing and user experience experiments
Dashboard creation and reporting via piano analytics
Procurement strategy implementation
Contract lifecycle management

Hiring Activity

Accelerating15 roles · 10 in 30d

Department

Sales

Marketing

Engineering

Finance

Legal

Ops

Seniority

Mid

Senior

Intern

Junior

Manager

Lead

Notable leadership hires: Tech Lead

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About SFR

SFR is the largest alternative telecommunications operator in France, operating one of the country's major mobile and broadband networks. The company serves both consumer and enterprise customers, with a mobile customer base and broadband subscriber base representing significant market share in France. Founded in 1987, SFR is privately held and headquartered in Paris. With 5,001–10,000 employees, the organization manages infrastructure across 4G and 5G networks while operating digital customer-facing properties (website, online store). Current focus includes network reliability improvements, ESG/sustainability compliance for regulatory alignment, and cost optimization across procurement and operations.

HeadquartersParis, Île-de-France

Company Size5,001–10,000 employees

Founded1987

Hiring MarketsFrance

Frequently Asked Questions

What tech stack does SFR use?

SFR's core stack includes Python, Java, Scala, Apache Spark, Hadoop for data processing, plus GCP, AWS, BigQuery, and Bigtable for analytics and storage. Looker and Data Studio handle dashboarding and reporting.

How many employees does SFR have?

SFR employs 5,001–10,000 people and is headquartered in Paris, France, serving as a privately held company since its founding in 1987.