cover image
fifty-five

fifty-five

www.fifty-five.com

3 Jobs

491 Employees

About the Company

fifty-five was founded in 2010 by former Google executives who understood and anticipated the potential of data in brands' marketing strategies.

Our team has mastered a rare combination of consulting, technical skills and marketing understanding to offer high value data-based services to its clients.

Headquartered in Paris, with deep European roots, we operate across 3 time zones from our 10 offices located in Paris, London, Geneva, Milan, Shanghai, Hong Kong, Shenzhen, Taipei, Singapore and New York.

We're hiring! Please visit our website to have a look at our job openings:
https://www.fifty-five.com/carreer

Listed Jobs

Company background Company brand
Company Name
fifty-five
Job Title
Senior Digital Analytics Consultant (H/F) Paris
Job Description
**Job title** Senior Digital Analytics Consultant **Role Summary** Lead end‑to‑end digital analytics consulting for clients across various industries, focusing on conversion optimization and media performance. Manage data quality, deliver actionable insights, and support the implementation of user‑centric digital strategies. **Expectations** - Ensure accurate, high‑quality data and deliverables. - Guide clients through conversion optimization and media mix improvement. - Apply analytical rigor and commercial acumen to drive client success. **Key Responsibilities** - Promote a user‑centric digital marketing vision. - Develop and execute client‑specific action plans with defined milestones. - Maintain data integrity and ensure KPI alignment with client objectives. - Support technical and operational implementation of analytics solutions. - Collaborate on five‑five’s product and service development (technical, marketing, operational). - Analyze industry‑specific metrics (luxury, telecom, retail, tourism, etc.) and advise on strategy. - Evangelize best practices in web analytics, media buying, and conversion. **Required Skills** - Proficiency in leading web‑analytics tools (e.g., Adobe Analytics, Google Analytics, heat‑mapping). - Strong knowledge of online acquisition channels: SEO, SEM, paid search, display, affiliate, email, social, programmatic, mobile. - Analytical mindset with excellent written and verbal communication. - Commercial awareness and client‑presenting skills. - Fluency in English (written & spoken). **Required Education & Certifications** - Graduate of a top business or engineering school (equivalent to a large French “grande école”). - Minimum 2 years of project management or digital marketing consulting experience (strategy, BI, or advertising). - Certifications in web analytics or digital media (e.g., Google Analytics Certified, Adobe Analytics) preferred.
Paris, France
Hybrid
Senior
03-11-2025
Company background Company brand
Company Name
fifty-five
Job Title
AI Engineer (H/F)
Job Description
**Job Title:** AI Engineer **Role Summary:** Design, develop, and industrialize advanced generative AI solutions—including Retrieval‑Augmented Generation (RAG), autonomous/multi‑agent systems, reasoning, and tool‑calling—within a global data‑focused consultancy. Ensure robust, secure, and scalable production deployment, integrate AI components into existing data ecosystems, and uphold engineering best practices. **Expectations:** - Deliver high‑quality, production‑ready AI systems that meet performance, cost, and security targets. - Operate effectively in a fast‑paced, multi‑disciplinary, multicultural environment. - Communicate complex technical concepts clearly to non‑technical stakeholders. - Exhibit strong software‑engineering discipline, agility, and continuous learning. **Key Responsibilities:** 1. **AI Solution Development** - Architect and implement generative AI models (RAG, autonomous agents, multi‑agent coordination). - Build and optimize knowledge bases, ingestion pipelines, chunking, and embedding processes. - Conduct advanced prompt engineering and model‑application interaction design. - Convert PoCs into production‑grade, maintainable systems. 2. **Industrialization & MLOps** - Scale AI services for high user load; manage cloud and DevOps deployments. - Monitor and reduce inference costs (token usage) while maintaining latency and quality. - Implement supervision tools (quality metrics, drift detection, RAGAS) and perform ongoing maintenance. 3. **Technical Quality Assurance** - Write robust, well‑tested code adhering to software‑engineering standards. - Ensure AI security, compliance, and governance in partnership with dedicated teams. - Document architecture, pipelines, and best‑practice guidelines. 4. **Ecosystem Integration** - Seamlessly integrate AI components with existing data, IT, security, and product platforms. - Collaborate with cross‑functional teams to guarantee solution coherence and performance. **Required Skills:** - Expert‑level Python programming. - Deep knowledge of generative AI, large language models (LLMs), and prompt engineering. - Proficiency with LangChain, agent orchestration, vector databases, and LangGraph. - Experience consuming LLM APIs (e.g., Vertex AI, Azure OpenAI). - Strong software‑engineering foundation: system architecture, unit/integration testing, CI/CD, coding standards. - Good understanding of cloud platforms (AWS, GCP, Azure) and DevOps practices. - Agile mindset, rigor, curiosity, and rapid adaptation to complex technical settings. - Excellent collaboration skills and ability to explain technical topics to non‑experts. **Required Education & Certifications:** - Bachelor’s (minimum) or Master’s degree in Computer Science, Software Engineering, Artificial Intelligence, Data Science, or a related quantitative field. - Relevant certifications (e.g., Cloud Provider AI/ML certifications, MLOps certifications) are a plus but not mandatory.
Paris, France
Hybrid
18-12-2025
Company background Company brand
Company Name
fifty-five
Job Title
Data Consultant - Paris (H/F)
Job Description
**Job Title:** Data Consultant **Role Summary:** Execute and manage data‑driven marketing projects for clients, focusing on conversion optimization and digital media performance. Bridge technical teams and business stakeholders to deliver AI‑enabled marketing use cases, ensuring high data quality, actionable insights, and successful activation of marketing initiatives. **Expectations:** - Deliver quality data‑analysis and data‑science deliverables in line with project timelines. - Translate business objectives into technical requirements and measurable KPIs. - Act as a liaison between technical infrastructure and marketing teams to align strategy and execution. **Key Responsibilities:** - Drive the promotion and application of data science and processing within digital marketing projects. - Ensure data accuracy, integrity, and delivery of reliable insights to clients. - Monitor and report on digital performance indicators to guide media strategy. - Support the operational and technical deployment of marketing initiatives. - Collaborate with the consulting team to develop and refine the data‑science offerings. - Perform data exploration, analysis, and visualization to support marketing decisions. **Required Skills:** - Proficient in SQL for data querying and manipulation. - Working knowledge of Python (basic scripting and data handling). - Strong analytical aptitude and problem‑solving ability. - Excellent written and verbal communication skills. - Basic proficiency with Microsoft Office (Word, Excel, PowerPoint). - Understanding of digital marketing, web analytics, media activation, and machine‑learning concepts. - Ability to comprehend complex technical architecture. - Functional working knowledge of English; additional languages are a plus. **Required Education & Certifications:** - Graduate of an engineering school or a dual commerce/engineering program. - Prior experience in data consulting or a data‑analysis role is required. - No specific certifications mandatory; technical certifications (e.g., SQL, Python, Microsoft Office) are advantageous.
Paris, France
On site
29-12-2025