Castor Tech Stack

Clinical trial platform automating patient recruitment, data capture, and study operations

Software Development New York, NY 201–500 employees Founded 2011 Privately Held

Castor operates a modular clinical trial management platform serving the full research lifecycle—from patient recruitment through data analysis. The stack is Python-heavy with ClickHouse, Kubernetes, and cloud infrastructure (GCP/Azure), while projects reveal deep investment in AI-powered workflow automation and lead enrichment pipelines. Active pain points (manual research effort, fragmented processes, complex data reporting, compliance friction) align with the product roadmap; hiring velocity is accelerating across engineering and product, suggesting Castor is scaling to handle larger, multi-country trial deployments.

Tech Stack 16 technologies

Core StackPython Kubernetes Pandas NumPy ClickHouse GitHub Copilot Salesforce Jira Zendesk Confluence SQL Git GCP Azure Streamlit Plotly

What Castor Is Building

◆Challenges

Manual effort slow research
Exclude patient populations
Fragmented manual processes
Complex clinical data reporting
Reliable cloud insights deployment
Scaling engineering organization
Ensuring system reliability and security
Compliance with information security policies
Manual administrative tasks

▲Active Projects

Ai-powered applications
Ai tooling and workflows
High-velocity execution standards
Shared infrastructure automation
Ai-powered workflow automation
Ai implementation across finance, sales, operations
Pipeline architecture for lead enrichment
Targeted campaign execution
Lead hygiene maintenance
Complex multi-component multi-country studies

Hiring Activity

Accelerating7 roles · 4 in 30d

Department

Engineering

Product

Data

Sales

Seniority

Junior

Lead

Mid

Principal

Staff

Notable leadership hires: Project Lead

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About Castor

Castor builds a cloud-based clinical trial management platform designed as modular components—patient recruitment and engagement tools, electronic data capture (eCRF/ePRO), and study monitoring—that can operate independently or integrated. The company sells to sponsors, CROs, and study teams running patient-centered trials. Operations span the United States, Europe (Bulgaria, Belgium), and Latin America (Colombia), with a 201–500-person team founded in 2011. The platform emphasizes remote-first delivery and automation of manual trial administration.

HeadquartersNew York, NY

Company Size201–500 employees

Founded2011

Hiring MarketsBulgaria, Colombia, Belgium, United States

Frequently Asked Questions

What tech stack does Castor use?

Castor's core stack includes Python, Kubernetes, ClickHouse, Pandas, NumPy, SQL, and cloud infrastructure (GCP, Azure). Development tooling: GitHub Copilot, Git, Jira. Analytics and dashboards: Streamlit, Plotly.

What countries does Castor hire in?

Castor has active hiring in the United States, Bulgaria, Colombia, and Belgium, reflecting a distributed, multi-region engineering and operations footprint.