Collective.work Tech Stack

AI-powered recruitment sourcing platform for talent teams

Software Development Paris, Île-de-France 11–50 employees Founded 2021 Privately Held

Collective.work operates an AI sourcing agent embedded into recruiting workflows, used by 15K+ recruiters to automate candidate search, job creation, and application scoring. The tech stack reveals heavy infrastructure and data engineering (Kafka, PostgreSQL, dbt, AWS) layered with modern ML tooling (LoRA, RAG, GitHub Copilot adoption), while active projects center on data pipeline and platform work—suggesting the company is scaling backend reliability and analytics capability to support a growing user base.

Tech Stack 200 technologies

Core StackVMware Puppet Ansible Docker Python Grafana AWS Figma Angular Java Maven GitLab CI/CD Terraform PostgreSQL Linux CATIA Red Hat Dell EMC Pure Storage Git Bash Nagios Spring Boot SQL Murex Windows IBM DOORS Polarion Linux Kernel+170 more

AdoptingKotlin GitHub Copilot Dynamics 365 RAG LoRA Ultra-Wideband Microsoft 365 SAS Viya+26 more

ReplacingSAS Power BI SAP BW Azure SQL

What Collective.work Is Building

◆Challenges

Performance optimization
Maintaining application uptime
Ensuring data reliability
Esg compliance reporting
Industrializing hr data
Ensuring data compliance and security
Cross-functional data coordination
Scaling data infrastructure for rapid growth
Compliance with dsp2 regulation
Implementing new payroll system

▲Active Projects

Data pipeline development
Data platform implementation
New soa platform
Ci/cd workflow implementation
Sql performance optimization
Oms version upgrade
New dashboard creation
Compliance projects
Major incident management
Deployment of new solutions

Hiring Activity

Minimal950 roles · 0 in 30d

Department

Engineering

322

Data

168

Ops

Finance

Product

Marketing

Sales

Security

Seniority

Senior

511

Mid

301

Junior

Manager

Director

Lead

C-Level

Notable leadership hires: Tech Lead JavaScript, Digital Technical Lead, Accounting Director, Agency Director, Chief Product Officer

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About Collective.work

Collective.work is an AI sourcing agent designed for recruitment teams. The product integrates with applicant tracking systems (ATS) to search candidate pools across public and deep-web sources, auto-generate job descriptions, rank and score inbound applications, and identify candidate lookalikes. Founded in 2021 and headquartered in Paris, the company operates a distributed hiring footprint across France, Germany, UK, Morocco, Pakistan, and multiple EU countries. The organization is early-stage and engineering-heavy, with active development across data infrastructure, compliance, and incident management.

HeadquartersParis, Île-de-France

Company Size11–50 employees

Founded2021

Hiring MarketsFrance, Germany, Morocco, United Kingdom, Pakistan, Luxembourg, Switzerland, Austria

Frequently Asked Questions

What tech stack does Collective.work use?

Core infrastructure: AWS, PostgreSQL, Docker, Terraform, GitLab CI/CD. Data layer: dbt, Grafana. Backend: Python, Java, Spring Boot. Adopting: LoRA, RAG, GitHub Copilot, Kotlin.

Where does Collective.work hire engineers?

Primarily France, Germany, UK, Morocco, and Pakistan. Also hiring in Luxembourg, Switzerland, Austria, Belgium, UAE, and Italy. 322 active engineering roles posted across all levels.

What is Collective.work building?

Data pipeline development, data platform implementation, CI/CD workflows, SQL optimization, new dashboards, and compliance projects. Active work on scaling data infrastructure and incident management.