Senior Fullstack Engineer
Hace 22 horas
San José, Costa Rica
Software Mind Americas
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Company Description
Software Mind is a software engineering partner that builds and scales digital products for companies in the US and Europe. Our LATAM teams work directly with client engineering teams on complex, high-impact projects.
Job Description
We’re partnering with a leading US promotional products and e-commerce company to build a new shipping and delivery service for its white-label B2B commerce platform. The platform runs on Shopify Plus with a .
NET microservices backend on AWS. The new service connects major shipping carriers, the storefront, and the existing order management systems. It’s a short, focused engagement: a discovery phase, then two-week sprints through production release. What You’ll Do
• Build and own the Shopify storefront integration (Admin API, webhooks, checkout integration points)
• Develop React interfaces, including admin and configuration tools
• Design and implement .
NET 8 Web API endpoints and services
• Integrate third-party APIs behind clean adapter layers
• Work with event-driven messaging (SNS/SQS), including idempotent handling and retries
• Keep customer-facing flows fast and resilient
• Align API contracts with the client’s storefront partner
• Write unit, integration, and component tests
• Document APIs (OpenAPI) and integration flows in Confluence
• Take part in code reviews, sprint ceremonies, and technical sessions with the client Qualifications Must have:
• 5+ years of full-stack development with strong C# / .
NET (ASP.
NET Core, .
NET 6+) and React (TypeScript)
• Hands-on Shopify integration: Admin API (GraphQL/REST), webhooks, checkout integration
• Solid REST API design with OpenAPI / Swagger
• Third-party API integration: authentication, rate limits, retries, error handling
• Working knowledge of AWS: Lambda, SQS/SNS, ECS
• Clean architecture: dependency injection, DDD/CQRS concepts
• Testing discipline across backend and frontend
• Docker and CI/CD
• Excellent written and spoken English for daily client interaction Nice To Have
• Shipping or carrier API experience
• Shopify Plus, Hydrogen, or headless commerce storefronts
• Admin UIs built with component libraries (Polaris, MUI, or similar)
• Retail, e-commerce, or promotional products domain knowledge
Job Description
We’re partnering with a leading US promotional products and e-commerce company to build a new shipping and delivery service for its white-label B2B commerce platform. The platform runs on Shopify Plus with a .
NET microservices backend on AWS. The new service connects major shipping carriers, the storefront, and the existing order management systems. It’s a short, focused engagement: a discovery phase, then two-week sprints through production release. What You’ll Do
• Build and own the Shopify storefront integration (Admin API, webhooks, checkout integration points)
• Develop React interfaces, including admin and configuration tools
• Design and implement .
NET 8 Web API endpoints and services
• Integrate third-party APIs behind clean adapter layers
• Work with event-driven messaging (SNS/SQS), including idempotent handling and retries
• Keep customer-facing flows fast and resilient
• Align API contracts with the client’s storefront partner
• Write unit, integration, and component tests
• Document APIs (OpenAPI) and integration flows in Confluence
• Take part in code reviews, sprint ceremonies, and technical sessions with the client Qualifications Must have:
• 5+ years of full-stack development with strong C# / .
NET (ASP.
NET Core, .
NET 6+) and React (TypeScript)
• Hands-on Shopify integration: Admin API (GraphQL/REST), webhooks, checkout integration
• Solid REST API design with OpenAPI / Swagger
• Third-party API integration: authentication, rate limits, retries, error handling
• Working knowledge of AWS: Lambda, SQS/SNS, ECS
• Clean architecture: dependency injection, DDD/CQRS concepts
• Testing discipline across backend and frontend
• Docker and CI/CD
• Excellent written and spoken English for daily client interaction Nice To Have
• Shipping or carrier API experience
• Shopify Plus, Hydrogen, or headless commerce storefronts
• Admin UIs built with component libraries (Polaris, MUI, or similar)
• Retail, e-commerce, or promotional products domain knowledge