Senior Software Engineer (Payments/Fintech)

Senior Software Engineer (Payments/Fintech) Key Responsibilities

• Design and build end-to-end product features (backend APIs, frontend components, and workflows)
• Develop backend services using NodeJS and expose well-structured REST APIs
• Build internal tools and dashboards using React
• Work with event-driven systems (SQS, webhooks) to support asynchronous workflows
• Integrate with payment systems, including workflows such as ACH debits, retries, and reconciliation
• Refactor and improve existing code to enhance maintainability, consistency, and performance
• Contribute to CI/CD pipelines and automation to enable safe and frequent releases
• Collaborate with product and operations teams to translate business workflows into scalable solutions
• Ensure features are built with reliability, traceability, and correctness in mind Required Skills
• Strong experience with NodeJS and REST API development
• Experience building frontend applications using React and Next
• Solid understanding of REST API best practices (versioning, error handling, contract stability)
• Experience working with event-driven or asynchronous systems (queues, webhooks, etc.)
• Experience refactoring code for improved structure and maintainability
• Experience with CI/CD pipelines and automated deployment workflows
• Strong problem-solving skills and ability to build in fast-moving product environments
• Experience with rigorous automated testing frameworks (Unit, Integration, and E2E) within a test-driven development (TDD) environment. Preferred Skills
• Experience with AWS SQS or similar queueing systems
• Exposure to US payment systems, ACH workflows, or financial transaction platforms
• Compliance & Security Mindset: Familiarity with PCI-DSS and SOC 2 compliance standards
• Understanding of payment lifecycle concepts such as retries, failures, and reconciliation
• Familiarity with CRM platforms such as TwentyCRM, Salesforce, or Zoho
• Experience with API documentation standards (OpenAPI / Swagger)
• Familiarity with AI-assisted development tools and modern coding practices What Makes Someone Successful Here
• Strong product mindset — focused on delivering user and business value
• Ability to balance speed of development with system correctness
• Writes code that is clean, maintainable, and easy to evolve
• Takes ownership of features from concept to production
• Uses automation and modern tools (including AI) responsibly and effectively NodeJS,ReactJs