Senior Software Engineer, Platform/Backend

Role overview

Senior Software Engineer (Platform/Backend) at SentiLink, building and enhancing the API platform that powers the company’s products. The role partners with product, engineering, and security teams to deploy scalable, maintainable, and highly secure systems.

Responsibilities

• Own a large section of the codebase and provide technical direction and guidance for the team
• Lead technical design and set direction aligned with project goals and industry best practices
• Design and build API-based decisioning products
• Code, test, debug, document, and maintain platform and product services
• Partner with product management to drive agile delivery of existing and new products
• Ensure quality through unit, dependency, integration, and end-to-end automated tests
• Troubleshoot and resolve production/product issues
• Meet service-level agreements (SLA) and participate in an on-call rotation for production issues

Requirements

• 6+ years of software development experience building enterprise or consumer-facing products
• Experience building API-based products using Python, Go (Golang), or similar technologies
• Strong analytical and problem-solving skills; good interpersonal skills
• Familiarity with:
  • Relational databases (e.g., PostgreSQL) and writing efficient queries
  • Docker and AWS services (e.g., Lambda, Cognito)
  • Fintech or financial services domain
  • Scrum/Agile development environment
• Must be legally authorized to work in the United States and live in the U.S.

Nice to have / additional context

• Experience with API platform scalability, security, and reliability in production environments