Senior C# Developer

Há 16 horas

São Paulo State of São Paulo Brazil Nearshore Business Solutions Tempo inteiro US$80.000 - US$120.000 por ano


Job Title: Senior C# Developer Payment Systems Integration

Location: Remote Latin America Preferred

Type of Contract: Full-Time

Salary Range: Premium USD Compensation (with performance bonuses)

Language Requirements: Excellent English proficiency (written and spoken) REQUIRED

We are seeking a skilled Senior C# Developer with strong .NET Core expertise to join our team for a high-impact payment systems integration project. You will be responsible for building and maintaining secure, scalable payment processing solutions that integrate with 250+ global processors. Your work will directly support major hospitality and retail clients, ensuring seamless and compliant transactions at scale.

Key Responsibilities

  • Develop microservices using C# and .NET Core 8.0 within Linux Docker containers
  • Integrate payment gateways including Stripe, Global Payments, Freedom Pay, and others
  • Implement PCI-compliant iframe solutions for secure payment capture
  • Build and maintain robust RESTful APIs for payment processing
  • Develop (TypeScript) components for frontend payment interfaces
  • Optimize performance for high-volume transaction systems
  • Assist with .NET Core upgrades and modernization initiatives
  • Ensure secure transaction storage and database integration with Azure SQL

Must-Have Qualifications

  • 5+ years of professional C# development experience with .NET Core/.NET Framework
  • 3+ years working with payment systems, fintech, or transaction-heavy platforms
  • Strong experience integrating third-party APIs at scale
  • Background in hospitality or retail payment solutions is highly desirable
  • Hands-on experience with microservices architecture and Docker (Linux containers)
  • Familiarity with cloud platforms (Azure preferred; AWS a plus)
  • Proven ability to design and implement PCI-compliant, secure payment solutions

Preferred Qualifications

  • Experience with multi-tenant SaaS platforms
  • Previous migration experience from .NET Core 2.2 to 8.0
  • Knowledge of with TypeScript and server-side rendering
  • Exposure to monitoring tools such as Datadog and

Benefits & Perks

  • Competitive USD compensation with performance-based bonuses
  • Fully remote work with flexible hours and generous time off
  • Annual learning budget for certifications, conferences, and training
  • Direct collaboration with Fortune 500 clients and growing SMBs
  • Annual company retreat and regular team-building events
  • Support for open-source contributions and speaking engagements
  • Transparent compensation structure with clear career progression

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