Principal Software Engineer
Location: Remote
Compensation: Salary
Reviewed: Tue, Sep 08, 2026
This job expires in: 30 days
Job Summary
Experienced engineers will find a full-time salaried opportunity as a Principal Software Engineer focused on designing, developing, and delivering complex payment and transaction-processing systems in a fully remote environment.
Key Responsibilities
- Lead the design, development, and delivery of technical solutions that meet functional, performance, and security requirements
- Translate ambiguous business requirements into clear technical plans and execute against them
- Design, build, and maintain secure, PCI-compliant payment systems while collaborating across product, architecture, QA, and DevOps teams
Required Qualifications
- 10+ years of hands-on software engineering experience, particularly in fintech and payment processing software
- Strong foundation in C# and .NET, with front-end experience in Angular, React, or Blazor
- Experience with RESTful APIs, microservices, and cloud platforms (Azure, AWS)
- Familiarity with payment gateways/processors and PCI DSS
- Understanding of DevOps practices and tools, such as GitHub Actions or Azure DevOps
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