[8BE] Senior Fullstack Engineer
Full-time
Software Mind
Responsibilities
- Build and own Shopify storefront integrations using the Admin API, webhooks, and checkout integration points.
- Develop React interfaces for administration and configuration tools.
- Design and implement .NET 8 Web API endpoints and services.
- Integrate third-party APIs with authentication, rate-limit handling, retries, and error handling behind clean adapter layers.
- Implement event-driven messaging with SNS/SQS, including idempotency and retries.
- Keep customer-facing flows fast and resilient and align API contracts with the storefront partner.
- Write unit, integration, and component tests.
- Document APIs and integration flows and participate in code reviews, sprint ceremonies, and client technical sessions.
Requirements
- 5+ years of full-stack development experience.
- Strong C# and .NET experience, including ASP.NET Core and .NET 6+.
- Strong React and TypeScript experience.
- Hands-on Shopify integration experience with the Admin API, GraphQL or REST, webhooks, and checkout integration.
- Experience designing REST APIs with OpenAPI or Swagger.
- Experience integrating third-party APIs, including authentication, rate limits, retries, and error handling.
- Working knowledge of AWS Lambda, SQS/SNS, and ECS.
- Knowledge of clean architecture, dependency injection, and DDD/CQRS concepts.
- Testing experience across backend and frontend codebases.
- Experience with Docker and CI/CD.
- Excellent written and spoken English for daily client interaction.
- Shipping or carrier API experience is preferred.
- Shopify Plus, Hydrogen, or headless commerce experience is preferred.
- Experience building admin UIs with Polaris, MUI, or similar component libraries is preferred.
- Retail, e-commerce, or promotional products domain knowledge is preferred.
Benefits
- Short, focused engagement with a discovery phase followed by two-week sprints through production release.
- Direct collaboration with client engineering teams on a complex, high-impact project.
- LATAM team members work directly with client engineering teams in the US and Europe.
Vacancy posted 1 day ago
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