Payabli

Senior Software Engineer, Backend

Payabli
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3 months ago
Remote, United StatesSenior

Responsibilities

  • Design, build, and maintain scalable backend services using C# and .NET.
  • Develop infrastructure for payment routing, connector management, and platform configuration.
  • Design secure and extensible APIs for customer-facing applications, integrations, and AI-powered workflows.
  • Build reliable, observable services that process high-volume payment transactions with performance and resilience.
  • Contribute to platform architecture, engineering standards, and technical decisions.
  • Improve system performance, security, reliability, and developer experience.
  • Collaborate with service-owning teams through APIs and real-time data streams to ensure seamless platform data flow.
  • Lead code reviews, champion backend standards, and drive architectural decisions.
  • Mentor engineers through pairing, documentation, and technical leadership.
  • Own requirements, implementation, testing, and deployment across the full software lifecycle.
  • Optimize for performance, accessibility, and cross-browser compatibility.

Requirements

  • At least 5 years of experience building production backend services.
  • Strong experience with C# and the .NET ecosystem.
  • Strong experience in payments, fintech, or other high-volume transaction processing environments.
  • Experience designing and building RESTful or event-driven APIs.
  • Strong understanding of relational databases, data modeling, and distributed systems.
  • Experience building secure, scalable cloud-based applications.
  • Ability to provide technical leadership while remaining hands-on in development.
  • Strong problem-solving, communication, and collaboration skills.

Benefits

  • Stock options with potential for additional equity as the company grows.
  • Flexible paid time off and paid parental leave.
  • Medical, dental, and vision insurance.
  • 401(k), HSA, and pre-tax savings programs.

Tech Stack

C#.NET

Categories

Payabli

About Payabli

51-200 employees

Payabli builds a developer-focused payments infrastructure for vertical software platforms, combining PayFac-as-a-Service with APIs for pay-in, pay-out, and payment operations. Software companies use it to embed and monetize payments without becoming full payment facilitators, typically via platform and per-transaction fees. Founded in 2020 and headquartered in Miami, it offers PCI DSS 4.0 and SOC 2–compliant tooling, low-code components, and AI-supported operations for onboarding, routing, and reconciliation.

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