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Eleven Labs Tech Stack

Web and AI consulting agency building custom applications and intelligent agents for enterprises

Technology, Information and Internet Paris, Île-de-France 51–200 employees Founded 2011 Partnership

Eleven Labs is a Paris-based consulting and engineering firm founded in 2011, operating at ~100 people with a project-heavy model (500+ completed engagements). Their tech stack reveals a dual focus: full-stack web development (Node.js, React, Next.js, Vue) alongside data-intensive AI work (Langchain, LangGraph, RAG, Spark, Airflow, dbt). Active hiring is heavily skewed toward engineering and data roles at senior levels—reflecting a shift toward building custom AI agent architectures and ETL/data-lake infrastructure rather than traditional consulting delivery.

Tech Stack 27 technologies

Core StackNode.js React Svelte GraphQL AWS AWS Lambda Snowflake Apache Spark Python Scala FastAPI Flask PyTorch Langchain PySpark dbt Apache Airflow TypeScript Express Vue Django Celery Hugging Face RAG Jupyter Nest LangGraph

What Eleven Labs Is Building

◆Challenges

Automating time-consuming tasks

▲Active Projects

Pipeline etl/elt from scratch
Data lake setup
Bi data visualisation
Building etl/elt pipelines
Implementing data lake infrastructure
Orchestrating pipelines with airflow
Rag hybrid solution architecture
Evaluation-first industrialization
Benchmarks and observability setup

Hiring Activity

Accelerating6 roles · 3 in 30d

Department

Engineering

4

Data

2

Seniority

Senior

6

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About Eleven Labs

Eleven Labs advises and implements digital transformation projects for mid-to-large enterprises, with past engagements spanning retail (Decathlon, Sephora), media (Radio France, 20 Minutes), and financial services (Société Générale). The firm operates across four practice areas: technology audits and strategy, bespoke web and application development, cloud and DevOps services, and data engineering with AI. Core methodology combines upfront strategic consulting with custom-built, production-grade solutions. Their AI Lab designs domain-specific agents and RAG systems connected to customer enterprise data and systems, focusing on process automation rather than replacement of human expertise.

HeadquartersParis, Île-de-France

Company Size51–200 employees

Founded2011

Hiring MarketsFrance

Frequently Asked Questions

What tech stack does Eleven Labs use?

Node.js, React, Next.js, Vue, Python, FastAPI, AWS, Snowflake, Apache Spark, Airflow, dbt, Langchain, LangGraph, PyTorch, and Hugging Face. Stack spans full-stack web (TypeScript/Node/React) and data/AI (Python, Spark, RAG, LLMs).

What is Eleven Labs working on?

Custom ETL/ELT pipeline design, data lake infrastructure, BI visualization, RAG-based agent architecture, and evaluation-first AI industrialization. Current focus includes Airflow orchestration, data benchmarking, and observability.

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