Full-Time

Lead Data Consultant

Fifty-Five

Fifty-Five

201-500 employees

Data-driven marketing analytics and consulting services

No salary listed

Île-de-France, France

In Person

Bachelor's

Category
Consulting (1)
Required Skills
Python
Data Science
SQL
Machine Learning
Data Engineering
Marketing
Data Analysis

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Requirements
  • A bac+5 degree from a leading school is required.
  • Three to six years of experience in project management and data science is required.
  • Strong knowledge of digital technologies is required.
  • English proficiency is indispensable.
  • Experience in project management, including planning, internal supervision, client relations, deadline and risk management, quality control of deliverables, and profitability management, is required.
  • Experience working with multidisciplinary teams comprising business, data science, data engineering, and data analyst profiles is required.
  • A good understanding of digital marketing, web analytics, media activation, and machine learning/artificial intelligence is required.
  • Ability to execute SQL queries and basic knowledge of Python are required.
  • Ability to understand complex cloud technical architecture diagrams is required.
Responsibilities
  • Supervise a team while actively participating in client engagements.
  • Respond to client needs.
  • Help develop fifty-five’s data science offering across marketing, technical, and operational areas.
  • Participate in the team’s business development activities.
  • Provide technical expertise in the development of large-scale data projects.
  • Transmit information between clients and internal technical teams and coordinate the activities of the requested profiles.
  • Manage junior and senior consultants both at the project-management and human-resources levels.

Fifty-Five provides data-based marketing services. It combines consulting, technical skills, and marketing know-how to help brands optimize their marketing strategies using data. The company works by offering services that merge data strategy, analytics, and technical implementation to improve marketing outcomes for clients across multiple time zones and offices around the world. It differentiates itself from competitors through its blended mix of advisory and technical execution, rooted in European experience and a global footprint with 10 offices. The goal is to help brands turn data into measurable marketing results and value.

Company Size

201-500

Company Stage

N/A

Total Funding

N/A

Headquarters

Paris, France

Founded

2010

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Simplify Jobs

Simplify's Take

What believers are saying

  • September 2026 Guanlain and March 2026 Estée Lauder wins prove active enterprise demand.
  • Thirty open roles across Paris, London, Geneva, Taipei, Hong Kong, and Shanghai show expansion.
  • Singapore expansion and Ben Poole’s regional leadership widen access to Southeast Asian advertisers.

What critics are saying

  • Google and Cloudflare can commoditize GTG implementation, squeezing fifty-five’s consulting margins by 2027.
  • A finance-client GDPR fine tied to misconfigured tracking would damage trust and sales immediately.
  • Thirty open roles signal growth spending; if bookings slow, Paris and London hires become stranded costs.

What makes Fifty-Five unique

  • Fifty-five builds first-party measurement stacks, exemplified by Guerlain’s September 2026 GTG deployment.
  • It pairs privacy consulting with MMM execution, like Estée Lauder’s March 2026 Meridian rollout.
  • Its 2026 thought leadership spans post-cookie analytics, privacy checklists, and agentic AI.

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Benefits

Health Insurance

Commuter Benefits

Hybrid Work Options

Remote Work Options

Paid Vacation

Paid Holidays

Company Social Events

Training Programs

Wellness Program

Meal Benefits

Flexible Work Hours

Growth & Insights and Company News

Headcount

6 month growth

2%

1 year growth

2%

2 year growth

2%
55 Consulting
Jul 15th, 2026
Agreement between Fifty Five Consulting and Jordan Hospital.

Agreement between Fifty Five Consulting and Jordan Hospital. July 15, 2026 Fifty Five Consulting partnered with Jordan Hospital to revamp its visual identity and redesign its website, aiming to elevate the brand's digital presence and deliver a more engaging, user-friendly experience

FF News
Jan 18th, 2023
Thousands Of Finance Firms Facing Hefty Fines For Breaching Gdpr Requirements

Despite facing more scrutiny than many businesses, a new report has revealed that thousands of finance, insurance and accounting firms could be facing fines from regulators for mishandling customer data. According to new research amongst 500 marketing leaders by data company fifty-five, more than two in five (43%) finance businesses have not yet implemented consent management platforms (CMPs). These are essential for managing consumer data and preferences under GDPR.Nearly half (48%) of those who have not implemented a CMP say their company does not believe it is necessary – but these platforms are critical for the proper management of consumer data and cookies.Despite this, 16 per cent of businesses in the sector say that one of their most significant concerns is receiving a fine from the Information Commissioners’ Office for a data breach. This is almost three times as the average (6 per cent) who have the same concern in other sectors.While many businesses are still lagging behind, high levels of regulation in the finance sector – and this fear of fines – do mean that more businesses are compliant than in other sectors. With a 46 per cent implementation rate, the sector is third after the IT and retail sectors (51% and 49%), and significantly above the UK average of 36 per cent.Richard Wheaton, Managing Director at fifty-five, said: “Respect for the customer’s privacy is at the heart of all financial companies’ principles. And it is imperative that laws are followed to the letter to avoid falling foul of regulators or losing the trust and business of their customers

MR Web
Nov 24th, 2021
fifty-five hires Ben Poole as Head of Office

Data and analytics company Fifty-five has expanded to Singapore, where it has appointed long-time WPP exec Ben Poole as Head of Office.