Backend Data Engineer @Delteer
Hexa (eFounders)

Hexa (eFounders)

Backend Data Engineer @Delteer

The company

Hexa (eFounders)

Hexa (eFounders)

  • Incubator / Accelerator, Corporate Support

The job

Backend Data Engineer @Delteer

This position was filled!

Who are they?

About eFounders
Together with entrepreneurs, we turn unique ideas into successful companies. We build businesses that create the tools of tomorrow and inspire new ways of working, in short, we build the future of work! Startup studio eFounders was the first to pioneer the model in 2011 and has since launched over 32 companies (7 of them have made exits) with $700M in funding and now reaching a valuation of over $3 billion - including unicorns Aircall & Spendesk.

Our companies:  Front • Mailjet • Aircall • Spendesk • Forest • Upflow • Collective • Numeral • and +28 other startups and many more to come 🚀

👋 Who we are

We’re reinventing the old-shool loyalty programs of brands !

Today’s consumers have changed. They support brands which are aligned with their identity & their values. They want to be contributors, to feel part of a community.

But brands are unequipped to federate their community in such a way.

That’s why we’ve built Delteer. Delteer is the new way for brands to engage their customers and turn them into active stakeholders.

With our mobile app, brands can offer engaging activities to their customers, and reward them for their participation.

It’s a win-win for brands and consumers : consumers get a more engaging & rewarding experience from their favorite brands, and brands turn their consumers into loyal advocates !

Things are moving fast ! We just closed a Pre-Seed round and joined eFounders Web3 startup studio, 3Founders. We’re looking for motivated and talented people to join the adventure!

The Team
Delteer was co-founded by two brothers:

  • Pierre, CEO - ex Project Leader @ Boston Consulting Group (6 years)
  • Louis, CTO - ex Lead Data Scientist @ Mazars (4 years)
Hexa (eFounders)
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Job description

💼 What you’ll do

We are looking for a Backend Data Engineer. This is a unique opportunity to join the latest eFounders project as one of the first Engineer and have a huge impact on the product and technical stack.

You will work closely with Louis, our CTO, and Delteer’s Engineering team to build a world class data pipeline.


  • Contribute to design, implementation and documentation of the Delteer’s core data pipeline
  • Work closely with the founders and product team to shape data pipeline new components to feed future application features
  • Leverage open-source and in-house technologies to improve the stack
  • Design indexing schemas to foster query efficiency
  • Keep Delteer’s technical stack up-to-date with industry standards and technology developments.

Preferred experience

  • 3+ years in Data Engineering: experience working with Python (Django is a plus), NoSQL databases (Elasticsearch / Opensearch - DynamoDB)
  • Ownership mentality: you are a doer and have a bias for action, no task is below you. You like to own projects from start to finish
  • Long-term vision: you know how to set best practices to ensure code quality, reusability and maintenance in the long run
  • Entrepreneurial mindset: you thrive in fast-paced environments where you have broad responsibilities. You are ambitious and want to take a part in the development of a world-class product and company
  • Problem solver: you know how to deconstruct complex problems to use appropriate technologies to meet requirements
  • Team player: you perform well in a group and enjoy sharing knowledge with your peers

🛠️ Technical stack

  • Backend: Python, Django, PostgreSQL, ElasticSearch, OpenSearch, DynamoDB, Thirds party APIs (Discord, etc.)
  • Frontend: React, React Native, Typescript, Chart.js / Detroit.js
  • Infra: AWS Serverless (Lambda, Eventbridge, Fargate - CDK Python), Docker
  • Monitoring: Datadog, Sentry
  • Version control: Gitlab

⭐ What we offer!

  • Competitive compensation and equity package
  • Great working environment surrounded by very cool and talented people in the center of Paris (75009) - we are looking for people committed to building a great team, but we are remote flexible !
  • Challenging work experience building and owning an ambitious product
  • Quality-driven environment
  • A strong product and technical culture

*eFounders is committed to creating a diverse environment. All qualified applicants will receive consideration for employment irrespective of gender, origins, identity, background and sexual orientations.

We are aware there’s a long way to go with regards to diversity in our industry, which is why we encourage all applicants- and especially those listed above- to apply to our open positions.*

Hexa (eFounders)
Hexa (eFounders)

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