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Altersolutions

Full-time|On-site|Paris

Join Altersolutions as a Data Test Lead, where you will spearhead our testing initiatives, ensuring the integrity and performance of our data systems. You will collaborate with cross-functional teams to develop testing strategies, execute test plans, and deliver high-quality data solutions. Your expertise will be instrumental in driving improvements and enha…

Sep 19, 2022

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Lead Test Data Management Specialist

nexton

Contract|On-site|Paris

Role Overview nexton is hiring a Lead Test Data Management Specialist in Paris to guide data management efforts for projects in the Energy & Environment sector. This position focuses on ensuring that test data supports quality and efficiency standards across the organization. What You Will Do Oversee the creation, maintenance, and optimization of test data for various projects. Work closely with cross-functional teams to gather and clarify data requirements. Implement data management best practices to support testing and quality assurance. Promote continuous improvement in test data processes and methodologies. Who Succeeds in This Role Detail-oriented professionals with a strong interest in data management and quality assurance. Individuals comfortable collaborating across teams and driving process improvements. Those who take initiative and look for ways to optimize data management workflows. Location Paris

Apr 16, 2026

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Lead Data Scientist

Nūmi

Full-time|On-site|Paris, Île-de-France, France

Nūmi is an innovative bioproduction platform utilizing human mammary cells to create essential ingredients with scientifically validated health benefits throughout all stages of life. Specifically, we are the pioneering European cultivated breast milk company, focused on generating human milk components that closely align with optimal nutrition for infants! As a dynamic early-stage startup, we are on a mission to transform how we nourish the next generation. If you're looking to be part of a rapidly growing, venture capital-backed biotech startup, Nūmi could be your next great opportunity!Situated in the heart of Paris (Hôpital Cochin, Paris 14), Nūmi is supported by esteemed international investors, leading scientists, and prominent academic institutions.Our Culture & Values Positivity: We foster a positive environment at Nūmi, where our mission encourages passionate and energetic communication, always keeping our larger impact in focus. We celebrate small victories but remain committed to our ultimate goals.Excellence: At Nūmi, we define excellence through dedication and a continuous improvement mindset. We view challenges as opportunities to learn and strive for high-quality outcomes. Our growth is driven by effort, attention to detail, and integrity, both as individuals and as a team.Teamwork and Pedagogy: We believe that collaboration strengthens us at Nūmi. We promote knowledge sharing, constructive feedback, and mutual respect, ensuring that every team member contributes to our collective success.Ambition: We set bold goals and encourage expansive thinking at Nūmi. Driven by innovative ideas and determination, we aim high to create meaningful change.Why This Role MattersIn our work at Nūmi, the capacity to identify “golden” cell lines, batches, and conditions relies heavily on our ability to effectively collect, organize, and leverage our data, rather than merely increasing the volume of experiments.Currently, our experimental data encompasses:Electronic Lab Notebook (ELN) entriesSpreadsheetsBioreactor and equipment outputsAnalytical and Quality Control (QC) readoutsThis position is essential for transforming our fragmented data landscape into a cohesive, reliable, and actionable data layer that empowers R&D, informs scale-up decisions, and supports regulatory and industrialization initiatives.As a Lead Data Scientist, you will be a pivotal contributor to advancing scientific progress at Nūmi.Your ResponsibilitiesEstablish Nūmi’s Scientific Data InfrastructureOversee the development of scalable data models and ontologies that accurately reflect experimental workflows, metadata standards, and the scientific landscape.Facilitate the harmonization and integration of data across ELNs, spreadsheets, instruments, assays, and analytical systems into a centralized, user-friendly platform.

Feb 25, 2026

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Lead Data Analyst

amo

Full-time|On-site|Paris

The RoleJoin amo as a Lead Data Analyst, where you will take charge of analytics across our growth and product domains. Collaborate closely with teams in growth marketing, product development, engineering, and leadership to define success metrics, harmonize data across various platforms, and transform complex data inputs into clear, reliable insights.This position is both tactical and strategic: you will engage in hands-on analysis while establishing the standards for data definitions.Your ResponsibilitiesLead comprehensive analytics for growth strategies encompassing acquisition, activation, retention, and experimentation.Work intimately with growth marketing teams at scale to evaluate channel performance, attribution, funnels, and cohort behavior.Validate and reconcile data from multiple sources (e.g., marketing platforms, analytics tools, internal databases) to create a dependable source of truth.Design, construct, and sustain dashboards and reporting tools that inform both daily operations and long-term strategies.Establish and standardize essential metrics, naming conventions, and data definitions for cross-team consistency.Conduct advanced analyses including funnel analysis, cohort analysis, experimental assessments, and trend investigation.Translate complex inquiries into structured analyses and articulate insights effectively to both technical and non-technical stakeholders.Mentor and coach fellow analysts as the team expands, enhancing analytical rigor, clarity, and impact.Qualifications5+ years of experience in data analytics, business intelligence, or a related field.Proven experience collaborating with growth marketing teams at scale (paid, organic, lifecycle, or multi-channel growth).Strong proficiency in SQL and comfort working with large, imperfect datasets.Demonstrated ability to reconcile data across various tools and platforms, identifying inconsistencies, gaps, and quality issues.Familiarity with BI and analytics tools (e.g., Looker, Tableau, Mode, Amplitude, GA, or similar).Proven ability to independently define project scopes, prioritize tasks, and drive analyses from inquiry to insight.Excellent written and verbal communication skills, particularly in conveying complex data insights.

Jan 23, 2026

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Data Lead at Maki | Paris

Maki

Full-time|On-site|Paris

About the RoleAt Maki, we harness the power of data to drive innovation across our AI agents, enhance user experiences, derive customer insights, inform our internal strategies, and support predictive analytics. We are excited to welcome our first Data Lead who will establish our data foundation and play a crucial role in transforming data into a valuable product at Maki.This position is a builder role, where you will design systems, model data, reveal insights, and integrate AI into user interactions with information.Collaborating closely with our Product, Engineering teams, and Founders, you will help lay the groundwork for our long-term data strategy.Your ResponsibilitiesData FoundationsDesign, develop, and manage data pipelines (ingestion → transformation → serving).Take ownership of our data lake/warehouse and model high-quality production tables.Implement monitoring, testing, documentation, and governance practices to ensure data integrity.Data Exposure & InsightsManage dashboarding solutions (Looker, Metabase, or equivalent).Deliver reliable datasets and self-service analytics tools for stakeholders.Assist with customer SQL requests and conduct internal ad-hoc analyses.Construct the semantic layer to facilitate both internal and external insights.Data as a ProductCreate embedded data experiences within Maki’s products.Explore and implement AI-driven interfaces (natural language querying, automated reporting).Collaborate with the product team to transform raw data into customer value.

Dec 2, 2025

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Lead Data Architect F/H

RTE1

Full-time|On-site|Paris

We are seeking a talented and innovative Lead Data Architect to join our dynamic team at RTE1 in Paris. In this pivotal role, you will spearhead the development and implementation of advanced data architecture solutions, ensuring the integrity, quality, and security of our data systems.Your expertise will guide our data strategy, supporting critical business decisions and ensuring our data infrastructure is scalable and robust. If you are passionate about data architecture and eager to lead a talented team, we want to hear from you!

Apr 8, 2026

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Lead Data Consultant (H-F)

Labelium

Full-time|On-site|Paris

Join Labelium as a Lead Data Consultant, where you'll leverage your expertise to drive data strategies and solutions for our clients. Collaborate with diverse teams and engage in innovative projects that challenge your analytical skills. If you are passionate about data and eager to make an impact in a dynamic environment, we want to hear from you!

Oct 16, 2025

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Lead Data Consultant (H/F) - Paris

fifty-five

Full-time|On-site|Paris, Île-de-France, France

About fifty-five:fifty-five is an innovative data company that empowers brands to leverage data for enhanced marketing, media, and customer experience through a blend of specialized consulting and technology services.As a key player in the Brandtech Group, we provide services that merge strategic consulting, cloud solutions, media advice, and customer experience expertise.With over 320 digital experts, including consultants, tracking specialists, media professionals, engineers, and data scientists, we collaborate closely to deliver top-notch marketing insights and technical support to brands across various industries worldwide.Partnering with advertisers from data collection to activation, we help organizations become true omnichannel entities, mastering the effectiveness of their digital ecosystem and its synergies with the physical world.Based in Paris, we operate across three time zones from our 10 offices located in Paris, London, Geneva, Milan, Shanghai, Hong Kong, Shenzhen, Taipei, Singapore, and New York. fifty-five values the well-being of its employees, earning a spot in the Best Workplaces France ranking in 2018.We firmly believe that the work environment is a key element of employee well-being, and we strive to provide excellent working conditions for our team members. Humility, a sense of humor, and strong interpersonal skills are shared values among us!Context:Within the Consulting team, you will oversee and actively participate in missions undertaken by fifty-five on behalf of its clients, playing a pivotal role in the development of our Data Science offerings.These missions involve implementing advanced marketing activations to deliver Marketing use cases focused on Machine Learning & AI, while incorporating business requirements with the goal of relevant activation.You will report to the managing director of one of fifty-five's consulting teams and work closely with experts and other consultants in the company.Responsibilities:You will lead a team, and your responsibilities will include (list not exhaustive):Addressing client needs,Collaborating with the team to develop fifty-five's Data Science offerings, both in marketing and technical or operational aspects;Contributing to the team's business development efforts;Providing technical expertise in the development of large-scale Data projects;Ensuring effective communication between clients and fifty-five's internal technical teams, coordinating activities...

Jan 7, 2026

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Lead Data Engineer / Machine Learning Specialist (H/F)

nexton

Full-time|On-site|Paris

nexton is looking for a Lead Data Engineer / Machine Learning Specialist to join its Paris team. This role centers on developing and refining data solutions that help achieve business objectives and improve daily operations. Key responsibilities Design and construct data pipelines for analytics and machine learning projects Enhance data flows to ensure reliability and efficiency Collaborate with teams throughout the company to align data efforts with strategic goals Use machine learning techniques to uncover insights and inform business decisions What to expect at nexton Projects at nexton rely on the intersection of data and technology to create measurable business results. The team values teamwork and practical approaches that deliver real impact.

Apr 27, 2026

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Lead Data Engineer - CDI Position at Theodo in Paris

Theodo

Full-time|On-site|Paris

Theodo Group: A Journey of Innovation and SuccessSince 2009, Theodo has been dedicated to supporting innovative companies in the design, development, and deployment of ingenious digital products, leveraging the best of technology and Lean methodologies.With over 15 years of exceptional growth, Theodo has expanded to a team of more than 700 passionate software engineers committed to continuous improvement. As we scale, we have structured ourselves into specialized units focused on various technologies (Theodo Apps, Theodo Cloud, Theodo Data & AI) and industries (Fintech, Govtech, Healthtech, Consumer Products Goods). By 2025, Theodo aims to achieve a revenue of €100 million.Established in 2016, Theodo Data & AI serves as the data and AI division of Theodo. Our goal is to partner with clients in shaping and deploying their data strategies, as well as researching and developing state-of-the-art AI solutions.The company is experiencing rapid growth, with Theodo Data & AI recording an annual revenue increase of over 30%, creating exciting new opportunities for our team!Why We Are Hiring a Lead Data Software Engineer?To contribute to the growth of Theodo Data & AI and to strengthen our Data Software Engineering teams, we are seeking an experienced professional.

Mar 7, 2022

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Autonomous Vehicle Test Operator

Terry Soot Management Group

Contract|On-site|Paris

Join Our Team as an Autonomous Vehicle Test OperatorAt Terry Soot Management Group (TSMG), we are pioneers in field data collection, established in 2017 in Europe. We specialize in gathering data in environments where automation is unfeasible. Our dedicated teams traverse Europe, North America, and Asia to provide invaluable insights through feature counting, photography, videography, speech recording, and meticulous area scanning.Role Overview:The Autonomous Vehicle Test Operator will play a crucial role in the operation and assessment of self-driving vehicles. This position entails collecting data, providing constructive feedback, and delivering ride-hailing services to the public. Join us to help revolutionize transportation!

Jan 26, 2025

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Automotive Test Driver

tsmg

Contract|On-site|Paris

Project OverviewJoin our innovative team at tsmg as an Automotive Test Driver! We are seeking dedicated and safety-conscious drivers to participate in a long-term, field data collection project spanning various locations across Europe. You will play a crucial role in operating project vehicles and adhering to specified routes and driving scenarios as directed by our client.This project aims to gather high-quality driving data to aid in the development and testing of cutting-edge automotive technologies. Your journey will commence with a comprehensive training and testing phase, followed by ongoing daily driving operations.

Mar 6, 2026

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Certified Autonomous Vehicle Test Driver

Terry Soot Management Group (TSMG)

Contract|On-site|Paris

Company Overview:Terry Soot Management Group (TSMG) stands at the forefront of field data collection, established in 2017 in Europe. We excel in areas where automation has limitations—leveraging direct human observation and engagement to gather critical data. Our dedicated teams operate across Europe, North America, and Asia, providing our partners with rich, actionable insights.Role Overview:We invite applications for the position of Certified Autonomous Vehicle Test Driver (Bertha Certified). This certification signifies a high level of proficiency in real-world vehicle testing, system awareness, and public interaction—essential for collecting meaningful data and ensuring a safe autonomous vehicle experience.

May 28, 2025

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Lead Data Scientist – AI & Generative AI | MARGO IA Practice

MARGO Group

Full-time|On-site|Paris

Who are we?At MARGO, our consultants focus on what truly matters: complex projects that merge intellectual challenges with real business impact.That’s why we support leading players in finance, industry, and technology on their most strategic initiatives in Data Science, Machine Learning, and Artificial Intelligence.Why join the AI practice?You will be part of a team guided by Hamza Bouanani, Practice Manager of AI at MARGO, who is also the Lead Data Scientist at BNP Paribas.Working alongside him means joining a team of passionate experts, being technically and methodologically challenged, and contributing to high-impact projects for our clients.Your MissionsWe are currently looking for a Lead Data Scientist for an investment bank:- You will be part of an international team of 80 individuals (Paris & Portugal) comprising data engineers, front-end and back-end developers, data scientists, and AI engineers, collaborating on ambitious and varied projects.- You will lead and contribute to major projects for the investment bank, including:- Implementation of AI / Generative AI / LLM / Machine Learning across various banking domains;- Flagship project: creation of an internal translation engine, utilized by 60,000 users;- Setup and industrialization of LLM;- Analysis of ESG data and development of a web interface to advise on sustainable behaviors;- Mentoring and coaching data scientists and AI engineers;- Collaboration with front-end, back-end, and data engineering teams to ensure the industrialization and quality of models.Profile RequiredWe seek demanding engineers and data scientists, passionate about AI and eager to evolve in complex environments.- Master's degree (engineering school, university, PhD appreciated);- Strong skills in Python and ML/DL libraries (scikit-learn, TensorFlow, PyTorch, XGBoost, etc.);- Initial experience in Data Science, Machine Learning, ideally in NLP / Generative AI;- Ability to lead teams and oversee complex technical projects;- Strong interest in demanding environments where quality is prioritized over quantity;- Analytical mindset, sense of challenge, and a taste for high-value projects.What We Offer

Sep 16, 2025

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Test Engineer (H/F)

myjobcompany1

Full-time|On-site|Paris

Join our dynamic team at myjobcompany1 as a Test Engineer (H/F) in the vibrant city of Paris! We are seeking a passionate individual to contribute to the development and execution of robust testing strategies to ensure the quality of our innovative software products. As a Test Engineer, you will collaborate closely with our development team, identifying and resolving defects while enhancing overall product performance.

Mar 31, 2016

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Lead Data Platform Engineer

Ankorstore

Full-time|On-site|Paris

About UsAt Ankorstore, we're dedicated to empowering independent brands and retailers by streamlining the wholesale process, making it easier, quicker, and more profitable for all involved.Our aim is to create a robust infrastructure that supports contemporary wholesale practices for brands—from enhancing visibility among suitable retailers to managing orders, logistics, and financing—enabling both parties to collaborate on more sustainable terms.The role of Lead Data Platform Engineer is essential to our mission, overseeing the architecture, reliability, and strategic evolution of our data infrastructure.You will spearhead a diverse team of Data Engineers and Analytics Engineers to develop a state-of-the-art Modern Data Stack. Your objective is to connect raw infrastructure with business intelligence, ensuring efficient data ingestion and transformation using BigQuery, Airflow, and dbt, while also facilitating actionable insights through advanced visualizations in Sigma Computing and product analytics in Amplitude.

Jan 27, 2026

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Field Data Collector/Driver in Paris, France

TSMG

Contract|On-site|Paris

Company OverviewFounded in 2017, TSMG is a leading field data collection company operating throughout Europe. We specialize in gathering data in environments where automation is impractical. Our expert teams meticulously count features, capture images and videos, record audio, and scan areas to provide you with the detailed insights necessary for informed decision-making. With teams located across Europe and North America, we are always prepared to tackle new challenges.Project Objective:We are seeking dedicated drivers to assist in testing innovative features of an online mapping application during both day and night. The role involves navigating urban areas with significant traffic alongside a co-pilot. You will be responsible for documenting your observations regarding app functionality, ease of use, and other pertinent details in a spreadsheet using a tablet or laptop. This critical data will be forwarded to the client for further enhancements.New team members will undergo one day of comprehensive remote training. All project-related expenses will be covered by the company, including vehicle rental, fuel, parking fees, and tolls. The project duration is estimated to be between 4 to 6 weeks, with work scheduled from Monday to Friday, approximately 7-8 hours per day (from 9 AM to 5 PM). Each day, you will be assigned approximately five routes to complete.

Apr 10, 2025

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Electrical Safety Testing Engineer

Eurofins Scientific

Full-time|On-site|Paris

Join Eurofins as an Electrical Safety Testing Engineer where you will be at the forefront of electrical safety compliance. In this role, you will ensure that products meet rigorous safety standards, contributing to the protection of consumers and the enhancement of product quality.

Sep 30, 2025

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Verification Test Engineer & TrainLab Engineer / Verification Test Leader

Segula Technologies

Full-time|On-site|Paris

Segula Technologies is seeking a Verification Test Engineer or TrainLab Engineer to join its Paris team. This role centers on testing and validation, ensuring advanced systems meet high standards of quality and reliability. The position requires hands-on involvement with simulation and numerical modeling, supporting technical project development and delivery. Key Responsibilities Design and implement verification test plans for complex systems. Work closely with cross-functional teams to define testing requirements and strategies. Carry out verification tests, analyze results, and document findings. Apply simulation and numerical modeling tools to support verification work. Identify technical issues during testing and propose practical solutions. Help improve testing and validation processes over time. Requirements Background in simulation and numerical modeling. Strong analytical and problem-solving skills. Experience working with multidisciplinary teams. Keen attention to detail and a focus on quality. Location This position is based in Paris.

Apr 23, 2026

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Lead Data Scientist - BI Prediction

Voodoo

Full-time|Hybrid|Paris

About VoodooEstablished in 2013, Voodoo is a pioneering tech company dedicated to developing engaging mobile games and applications that entertain millions globally. With a workforce of 800 talented individuals, we have achieved 7 billion downloads and boast over 200 million active users, making Voodoo the third-largest mobile publisher worldwide, trailing only Google and Meta. Our impressive portfolio features hit games such as Mob Control and Block Jam, along with popular applications like BeReal and Wizz.TeamThe Engineering & Data team is at the heart of crafting innovative technology products and platforms that fuel our incredible growth in gaming and consumer applications, ensuring Voodoo remains at the cutting edge of the mobile gaming landscape.Joining the Data team, you'll become part of the BI/Prediction squad, an autonomous group of approximately 10 experts, including top-tier product managers, software and data engineers, data scientists, and analysts.RoleOur mission is to supercharge the company's growth by providing on-demand predictive analytics for all Voodoo business units. This involves addressing vital needs such as forecasting campaign lifetime value (LTV) for user acquisition optimization, identifying the most effective monetization strategies for millions of players, and constructing confidence intervals for time series data predictions.We are seeking a passionate Senior Data Scientist with extensive experience in similar environments who can elevate our predictive capabilities. This role presents a unique opportunity to make a strategic impact on Voodoo’s overall success.This position is hybrid, requiring 3 days a week in our Paris office.Take ownership of our product modeling pipelines.Drive high modeling performance through innovative ideas and initiatives.Rapidly build and deploy scalable machine learning systems.Collaborate effectively across teams to harness new ideas and insights, demonstrating excellent communication with product managers, peers, and stakeholders.Conduct in-depth data analysis to uncover meaningful insights.Develop a comprehensive understanding of the mobile gaming sector, company strategy, and product alignment within daily operations.Mentor and lead a team of data scientists, fostering a culture of technical excellence and autonomy.Establish and uphold best practices in machine learning engineering, experimentation, and reproducibility across projects.Champion the integration of advanced analytical techniques to drive business insights.

Aug 28, 2025

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