Senior Backend Engineer
Key Skills for This Role
Full Job Posting
KEY 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.
REQUIRED SKILLS
- 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
- PREFERRED EXPERIENCE
- 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
Qualifications
- 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
- 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
Preferred Qualifications
- PREFERRED EXPERIENCE
About Delan Associates, Inc
Provides engineering and professional services to government agencies.
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