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Lead Software Engineer (C/C++)

Mastercard

O Fallon, MO · full time · Senior

$140,000 – $231,000

Listed on Mastercard’s own careers site. You apply with them directly — we never stand between you and the employer.

What this role is

Lead a critical team building the payment authorization system that processes billions of transactions globally, designing scalable solutions and mentoring engineers. Ideal for experienced C/C++ developers who thrive on complex performance challenges and want to shape technical direction in a secure, high-reliability environment.

Our summary, not Mastercard’s wording. The full posting is on their site.

Skills this role names

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What they ask for

Required

  • Production code experience in C or C++
  • Strong data structures and algorithms knowledge
  • Experience setting technical direction and mentoring
  • Performance engineering and scalability design
  • Secure coding practices and security risk identification
  • Software architecture for distributed systems
  • Linux operating system development
  • Observability and operational readiness implementation

Nice to have

  • Embedded, real-time, or distributed systems experience
  • Automation and CI/CD pipeline development
  • Software architecture governance contribution
  • Agile team experience

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