Castor Network Tech Stack

Freelance marketplace for ALTEN Group's engineering and consulting projects

Technology, Information and Internet Boulogne-Billancourt, Île-de-France 2–10 employees Privately Held

Castor Network is a project marketplace operated by ALTEN Group—a European engineering and consulting firm active across 35,000+ concurrent engagements in 25+ countries. The platform connects freelance engineers to ALTEN's portfolio of industrial, aerospace, cloud, and manufacturing projects. The tech stack is heavily Java/Spring backend with Vue/Angular frontends, deployed on AWS and Azure; the hiring profile is senior-weighted (13 of 19 active roles) and engineering-focused (15 of 19), signaling rapid scaling of delivery capacity for a growing client backlog.

Tech Stack 50 technologies

Core StackJava Spring Vue PHP Python AWS AWS Lambda AWS Glue GitHub Actions Angular Databricks Azure Data Factory Power BI Hadoop GitHub Jenkins Jira Confluence PySpark Spring Boot Git SQL XML AWS CDK GitHub Enterprise Azure Azure Data Lake Storage Artifactory FPGA VHDL+20 more

What Castor Network Is Building

◆Challenges

Structuring technical environment
Ensuring emi/emc compliance
Streamlining energy procurement processes
Deployment industrialization
Ensuring traceability of requirements
Strengthening validation plan
Optimizing project costs
Complex project coordination
Elevating technical standards
Designing aircraft electrical architecture

▲Active Projects

Esales implementation and configuration
Cloud aws project
Critical software project
Final production deployment
Train development projects
Feasibility study and commissioning of automation project
Strategic technical project in industrial environment
Pre-project aircraft electrical architecture
Emi/emc qualification
Safety and reliability analysis

Hiring Activity

Accelerating20 roles · 20 in 30d

Department

Engineering

Data

Manufacturing

Ops

Seniority

Senior

Mid

Lead

Manager

Notable leadership hires: Tech Lead

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About Castor Network

Castor Network operates as the freelance engagement platform for ALTEN Group, one of Europe's largest engineering and consulting organizations. The company facilitates connections between independent engineers and ALTEN's client projects spanning industrial automation, aerospace systems, cloud infrastructure, and energy sectors. The platform spans France and international markets, serving as both a project-matching tool and a community hub for freelance technologists. Current project activity includes cloud migrations, aircraft electrical architecture design, automation feasibility studies, and production deployment workflows. The organization runs lean (2–10 employees) while managing a distributed network of external contributors.

HeadquartersBoulogne-Billancourt, Île-de-France

Company Size2–10 employees

Hiring MarketsFrance

Frequently Asked Questions

What tech stack does Castor Network use?

Primary: Java, Spring, Spring Boot, Vue, Angular, Git. Cloud infrastructure on AWS (Lambda, Glue, CDK) and Azure (Data Lake Storage, Data Factory). Data processing via Databricks, PySpark, Hadoop. CI/CD: GitHub Enterprise, GitHub Actions, Jenkins. Project tools: Jira, Confluence, Artifactory.

What projects is Castor Network working on?

Active projects span cloud migration (AWS), aircraft electrical architecture, industrial automation, safety/compliance analysis (EMI/EMC qualification), and production deployment. Challenges include deployment industrialization, requirements traceability, and complex project coordination.