Senior Backend Engineer

Delan Associates, Inc•Austin, TX

4d•Hybrid

About The Position

We need a solid Python Backend engineer with experience in Fast API and Azure for this role. The Senior Backend Engineer will build the backend services, APIs, and orchestration layer behind the Sales Command Center. This role sits between the web/iOS experiences and Dynamics 365, creating reusable services that combine CRM information with data and workflows from other enterprise platforms.

Requirements

Python
FastAPI
REST APIs and microservices
Azure application development
Azure API Management
Azure Service Bus / Event Grid
Azure Functions / App Service / containers
SQL / NoSQL
Redis or equivalent caching
OAuth 2.0 / OIDC / JWT
Observability and distributed tracing
CI/CD and automated testing
Dynamics 365 / Dataverse Web API
Dynamics workflows, security roles and service limits

Nice To Haves

Headless CRM implementation experience
BFF and API gateway architecture
Event-driven read-model patterns
CRM integration with document, analytics or customer-data platforms
Financial-services technology experience

Responsibilities

Design and develop backend services using Python and FastAPI.
Build BFFs, domain APIs and reusable business services supporting the Sales Command Center.
Implement secure integration with Microsoft Dynamics 365 / Dataverse.
Build orchestration services combining CRM data, documents, customer context, sales workflows and other enterprise systems.
Implement REST APIs, asynchronous workflows and event-driven integration patterns.
Build Dynamics adapter / anti-corruption layers so UI and domain services do not become tightly coupled to CRM schemas.
Implement authentication, authorization, idempotency, retries, timeouts, circuit breakers, rate limits, caching and canonical error handling.
Develop read models and caching patterns where high-volume requests should not directly hit Dynamics.
Use Azure API Management, Service Bus / Event Grid, Key Vault and Azure Monitor / Application Insights.
Write unit, integration and contract tests and contribute to CI/CD quality gates.
Troubleshoot production and integration issues across UI, APIs, backend services and Dynamics.