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Prex Tech Stack

Digital banking and fintech for Latin America with ML-driven risk and compliance

Financial Services Buenos Aires 501–1,000 employees Founded 2014 Privately Held

Prex operates a digital banking platform across four Latin American markets, with a tech stack heavily weighted toward data science (Python, Pandas, scikit-learn, TensorFlow, PyTorch) and emerging AI tooling (LangGraph, LangChain, RAG, AutoGen). The project list—stress testing, risk appetite monitoring, KYC/AML automation, fraud evaluation—reveals a compliance and risk engineering organization, not a growth-stage consumer app. Finance and legal hiring (7 and 2 roles respectively) outpace engineering (2 roles), indicating the company is scaling regulatory infrastructure and risk operations faster than product velocity.

Tech Stack 23 technologies

Core StackPython Pandas NumPy scikit-learn Power BI TensorFlow PyTorch LangChain RAG AWS Tableau Excel SQL R QuickSight LangGraph AutoGen Amazon QuickSight Instagram Meta TikTok LinkedIn X

What Prex Is Building

Challenges

  • Ensuring compliance with sbs regulations
  • Secure cloud environments
  • Maintaining integrity of accounting information
  • High-volume bank reconciliation
  • Process automation improvement
  • Manual payroll errors
  • Inefficient payment tracking
  • Managing financial risk exposure
  • Daily account reconciliations
  • Managing accounting system

Active Projects

  • Stress testing simulations
  • Risk appetite monitoring tools
  • Risk reporting to senior management
  • Ai agent system development
  • Ml model integration into production services
  • Api and microservice development for model consumption
  • Automating internal reporting
  • Fraud tool evaluation
  • Plan anual de trabajo plaft
  • Automated kyc/aml controls

Hiring Activity

Accelerating20 roles · 15 in 30d

Department

Finance
7
Engineering
2
Legal
2
Support
2
Marketing
1
Risk
1
Security
1

Seniority

Senior
5
Junior
4
Mid
4
Lead
2
Manager
1
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About Prex

Prex is a digital banking and fintech platform operating in Argentina, Uruguay, Peru, and Chile since 2014. The service offers a free digital account and Mastercard alongside cross-border payments, local transfers, personal credit, currency exchange, and stock trading integration. The company partners with PayPal and Payoneer to enable international payouts and sales. With 501–1,000 employees based in Buenos Aires, Prex serves individual users across Latin America seeking simplified, transparent financial products delivered entirely through a mobile app.

HeadquartersBuenos Aires
Company Size501–1,000 employees
Founded2014
Hiring MarketsPeru, Argentina, Uruguay

Frequently Asked Questions

What tech stack does Prex use?

Python, SQL, Pandas, NumPy, scikit-learn, R, TensorFlow, PyTorch, LangGraph, LangChain, RAG, AWS, QuickSight, Power BI, and Tableau. Heavy emphasis on data science and ML infrastructure.

What countries does Prex operate in?

Argentina, Uruguay, Peru, and Chile. The company is actively hiring in all three non-Argentina markets plus Argentina itself.

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