Questor Sistemas Tech Stack

Accounting and ERP software for Brazilian businesses and tax consultancies

Software Development Chapecó, Santa Catarina 201–500 employees Founded 1985 Partnership

Questor is a 39-year-old accounting and ERP vendor serving Brazilian accountancies, corporate tax departments, BPOs, and mid-market manufacturers and retailers. The stack reflects a legacy-heavy architecture (Delphi, Oracle, SQL Server) with modest cloud tooling adoption. Active projects around legacy migration and compliance monitoring signal a company managing regulatory pressure and technical debt rather than building new capability — reinforced by decelerating hiring velocity and a support-heavy department mix.

Tech Stack 17 technologies

Core StackC# Google Ads Meta Ads Oracle SQL Server PostgreSQL Monday.com AnyDesk RD Station WhatsApp Business Meta Business Manager Delphi Object Pascal SQL Excel Microsoft Office Google Workspace

What Questor Sistemas Is Building

◆Challenges

Legacy system migration
New solution implementation
Monitoring legislative updates
Ensuring product compliance with new legislation
Gaps and bottlenecks
Legacy code maintenance
Optimizing internal workflows
Ensuring reliable processes
Strengthening client relationships
Reducing churn

▲Active Projects

Infrastructure monitoring
Legacy system migration
New solution implementation
Digital conversion flow optimization
Paid traffic campaign management

Hiring Activity

Decelerating15 roles · 4 in 30d

Department

Support

Engineering

Ops

Finance

Marketing

Product

Seniority

Mid

Junior

Manager

Senior

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About Questor Sistemas

Questor develops accounting systems, ERPs, and tax compliance software for Brazilian enterprises. The customer base spans accounting firms, corporate tax and finance departments, BPO service providers (payroll, financial operations), and industrial and retail companies of varying scale. The product portfolio includes a cloud-native accounting solution (positioned as the first SaaS-native tax solution in the Brazilian accounting market), on-premises ERP systems, and fiscal/tax management modules. The company operates from Chapecó, Santa Catarina, and maintains integration partnerships with Oracle and SAP.

HeadquartersChapecó, Santa Catarina

Company Size201–500 employees

Founded1985

Hiring MarketsBrazil

Frequently Asked Questions

What tech stack does Questor Sistemas use?

Delphi, Object Pascal, C#, Oracle, SQL Server, PostgreSQL, and SQL. Supporting infrastructure: Monday.com, Microsoft Office, Google Workspace, AnyDesk. Marketing channels include RD Station, Google Ads, Meta Ads, and WhatsApp Business.

What is Questor Sistemas working on?

Infrastructure monitoring, legacy system migration, new solution implementation, digital conversion flow optimization, and paid traffic campaign management. The project portfolio reflects internal infrastructure modernization and regulatory compliance efforts.