FOURSYS Tech Stack

Global systems integrator modernizing legacy infrastructure with cloud and AI

IT Services and IT Consulting Barueri, São Paulo 1,001–5,000 employees Founded 2000 Privately Held

Foursys is a 1,000+ person systems integrator founded in 2000, headquartered in Brazil but hiring across Brazil, Portugal, and the US. The stack reveals a company spanning legacy monoliths (Windows Server, SQL Server, VB) and modern platforms (AWS, Azure, Databricks, Kafka, Spark) — their active projects and pain points confirm they're executing two parallel strategies: migrating workloads to cloud (Azure data pipelines, stack modernization) while embedding AI (internal AI platform, corporate LLM gateway, chatbot implementations). Engineering dominance in the hiring mix (137 of 222 roles, mostly senior/lead level) signals heavy project delivery and technical depth required for complex legacy-to-modern transitions.

Tech Stack 200 technologies

Core StackAWS SQL Server Windows Server Swift GitLab Databricks Power BI Python Java Scala Apache Spark Kafka Apache Airflow Hadoop SwiftUI IIS Objective-C CocoaPods Gitflow REST Azure Azure Blob Storage GCS SQL UIKit Core Data AVFoundation Core Animation ARKit Core ML+170 more

AdoptingScala Kafka Okta Azure AD Apex CyberArk SailPoint TypeORM+2 more

ReplacingIBM Integration Bus

What FOURSYS Is Building

◆Challenges

Data security compliance
Performance high availability disaster recovery
Integrating legacy systems
Modernizing legacy systems
Implementing corporate data governance systems
Improving architecture for performance
Reducing incidents and improving user experience
Maintaining legacy vb applications
Data governance challenges
Timely releases

▲Active Projects

Internal ai platform interface
Zena rocket process automation administration
Golden record governance
Backstage idp evolution
Scalable data ingestion pipelines with azure
Ci/cd data pipeline automation
Ai chatbot implementation
Stack modernization
Corporate llm gateway
Legacy workloads modernization

Hiring Activity

Accelerating220 roles · 110 in 30d

Department

Engineering

137

Data

Product

Security

Ops

Sales

Marketing

Support

Seniority

Senior

145

Mid

Lead

Manager

Junior

Intern

Notable leadership hires: Technical Lead, Tech Lead .NET, Tech Lead .Net, Java Lead, Tech Lead

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About FOURSYS

Foursys delivers digital transformation services to mid-market and enterprise clients globally, with particular strength in business design, system development, and data architecture. Their project portfolio spans data governance and analytics modernization (Databricks, Power BI, Kafka pipelines), mobile and backend systems (Java, Scala, Swift), and infrastructure automation (CI/CD, IDP evolution via Backstage). The company operates across three geographic centers (Brazil, Portugal, US) and is actively scaling engineering capacity, with 110 new roles posted in the last 30 days. Core challenges include integrating legacy systems into cloud environments, maintaining data security and governance at scale, and reducing incident rates during architectural transitions.

HeadquartersBarueri, São Paulo

Company Size1,001–5,000 employees

Founded2000

Hiring MarketsBrazil, Portugal, United States

Frequently Asked Questions

What tech stack does Foursys use?

Foursys runs on AWS, Azure, SQL Server, and Windows Server for infrastructure; Java, Python, Scala for backend services; Swift and Objective-C for mobile; and Databricks, Kafka, Apache Spark for data pipelines. They're adopting Scala, Kafka, and identity tools (Okta, SailPoint, CyberArk) while replacing IBM Integration Bus.

What is Foursys working on?

Current projects include legacy workloads modernization, scalable data ingestion pipelines on Azure, internal AI platform and LLM gateway development, CI/CD automation, Backstage IDP evolution, and AI chatbot implementations. They're also focused on golden record governance and process automation.