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Lenstra

Sr. Data Architect Consultant

Hybrid

Paris, France

Junior

Freelance

17-02-2026

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Skills

Communication Python Tableau SQL Data Warehousing Data Engineering GitHub DevOps Product vision Problem-solving Architecture Enterprise Architecture Programming power bi Analytics Terraform PostGres GitHub Actions Mathematics

Job Specifications

About Lenstra

Lenstra was created by the passion of engineers specialised in Computer Science with a proven history in delivering top quality solutions to its customers. Bringing together work excellence and vision we managed to serve top tier clients from a variety of industry domains like Banking/Insurance, Luxury and Tech.

We help our clients to solve their most difficult problems around Cloud Computing & DevOps, Data Platform, IT Security by having a holistic approach of their environment and building often complex but always relevant solutions to help them accelerate their business.

Our engineering team is committed to great ethics and most of our teammates are core contributors to OpenSource projects such as CPython, Postgres or Terraform.

About the role

Lenstra is currently helping multiple major companies (> 3 B$ revenue) setting up their self service Data Platform. Our scope of work encompasses developing the Data Platform product vision taking into account our client’s strategic goals and existing technological environment, and then implementing the Data Platform including its deep integration with our client’s IT, security and legal requirements.

In this context we are looking for a passionate Sr. Data Architect to join our team in a freelance mode.

In this role you will:

advocate running the Data Platform to the internal communities.
design and build new features on this Data Platform.

You will have the opportunity to work on a state-of-the-art stack which includes tools such as GitHub actions, dbt, Terraform and various new open-source players such as Elementary.

If you are a highly motivated individual with a passion for Data Engineering and are excited to spread this passion to large teams, this is a great opportunity for you.

Location: 3 days per week onsite presence is required in central Paris.

Profile:

Bachelor’s or Master’s degree in Computer Science, Engineering, Mathematics, Statistics, or related field.
4+ years of experience in data engineering, analytics engineering, or a related field.
Excellent analytical and problem-solving skills, with the ability to work on complex and ambiguous problems.
Experience in designing enterprise architecture
Strong communication and collaboration skills, with the ability to work in a team environment.
Ability to manage multiple priorities and work effectively.
Strong knowledge in SQL
Strong experience with dbt or dataform
Experience with data modelling, ELT processes, and data warehousing.
Programming skills in Python
Familiarity with data visualisation tools such as Tableau, Power BI, or similar.
Fluency in both English and French.

The job position is available asap.

Interview process:

1 call with the recruiter;
1 technical interview with one of our senior consultants;
1 behaviour interview with one of our Partners.

About the Company

Lenstra is a consultancy that specialises in Tech. Our mission is to help our clients improve their operational performance by creating the Tech Solutions they miss. Our consultants speak both the language of Business and that of Tech. They work with our clients to help them define their issues, then create and/or assemble the technological building blocks that meet their needs. Their approach encompasses business strategy, user needs, and technical constraints. Our people are engaging to work with and trusted by clients. ... Know more