São Paulo, State of São Paulo, Brazil Remote (Global) Employment

Sigma Software is hiring a Senior Frontend Engineer

Responsibilities

  • Build and sustain scalable, high-speed frontend systems using React and Next.js
  • Work closely with Product, Design, and Backend teams to ensure cohesive user experiences
  • Connect frontend components with backend services and APIs
  • Take part in architectural planning, sprint sessions, and peer code reviews
  • Maintain responsive layouts, accessibility standards, and consistent behavior across browsers
  • Support ongoing enhancements to engineering practices and overall product quality

Work Arrangement

Remote (Worldwide)

CUSTOMER

The client is a top SaaS company in the FinTech space focused on AI-driven revenue platforms for finance and accounting departments. It offers tools for subscription management, billing, and revenue operations, with strong support for compliance, scalability, and integration across multiple payment providers to help organizations optimize financial workflows and drive growth.

PROJECT

This initiative focuses on improving and supporting core payment processing infrastructure, integrating various payment gateways, and maintaining reliable, scalable, and compliant financial transaction pipelines and APIs. Collaboration with multidisciplinary teams is essential, with opportunities to shape technical direction. Main technologies include React, Next.js, TypeScript, JavaScript, APIs, Postgres, Node.js/NestJS (optional), Vue, and Angular.

Other

Advanced English proficiency is required.

Got hired remotely?

Get paid like a professional

Remote clients expect company invoices, not personal PayPal requests. Glopay forms an EU partnership that makes you look legitimate while you stay independent.

Professional invoices with EU company details
Compliance handled automatically
Withdraw to any bank account
Income reports for easy tax filing
Create free account
Free signup • 5 min setup
About company
Sigma Software
Sigma Software is a company working on a Global Data Platform Modernization project for a global leader in providing trusted content, technology, and expertise to professionals across law, tax, compliance, government, and media sectors.
All jobs at Sigma Software Visit website
Job Details
Category frontend
Posted 5 months ago