Companies in this catalog do not charge applicants. Never send money to apply.
We’re building the backend of a white-label B2B e-commerce platform for a leading US promotional products company. The platform powers multiple branded Shopify Plus storefronts. It runs on a fully decoupled microservices architecture on AWS covering Identity, Profile, Order Management, Inventory, Pricing, Catalog, and Marketplace integrations. The existing legacy services stay supported while the migration happens.
What you’ll do:
Design and build scalable RESTful microservices with ASP.NET Core Web API (.NET 8) and CQRS
Own core services: Order Management, Inventory, Pricing Engine, Catalog Sync, and Notifications
Build and consume Shopify Webhooks and REST/GraphQL APIs (Storefront API, Admin API)
Integrate with external systems such as Amazon SP-API, Walmart Marketplace API, ERP, payment gateways, and tax services
Work with legacy services where the migration is phased or partial
Write unit, integration, and BDD tests (xUnit, Reqnroll, FluentAssertions)
Define API contracts and inter-service communication (SQS, EventBridge) with the Team Lead
Take part in code reviews and architecture decisions, and help hold the engineering standard
Support environment setup and infrastructure-as-code with DevOps on AWS
Join sprint planning, stand-ups, and technical discussions with the client
Must have:
4+ years of backend development with strong C# / .NET (ASP.NET Core, .NET 6+)
Marketplace API integrations (Amazon SP-API, Walmart)
Event-driven architecture (EventBridge, RabbitMQ)
Keycloak and multi-realm identity management
EF Core with Npgsql
Promotional products or print-on-demand domain knowledge
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.
