Senior Backend Engineer

Delan Associates, Inc; Austin (TX); Hybrid; USD 140,000 - 180,000; Full time

Job summary

Delan Associates, Inc. is seeking a Senior Backend Engineer in Austin, TX hybrid role to build robust Python backend services and orchestration layers. You will connect CRM data with Dynamics 365 and other enterprise platforms, focusing on secure, scalable APIs and event-driven patterns.

The role requires FastAPI expertise, Azure integration, and a strong understanding of SOA/REST microservices, CI/CD, and performance optimizations. Video interviews are part of the process.

Qualifications

• Proficient in Python, FastAPI, and building RESTful microservices.
• Experience designing distributed systems and APIs for scale.
• Knowledge of cloud-native patterns, authentication and security.

Responsibilities

• Design and develop backend services using Python and FastAPI.
• Build BFFs and domain APIs to support CRM and enterprise workflows.
• Implement secure integration with Microsoft Dynamics 365 / Dataverse.
• Create orchestration services combining CRM data with other enterprise systems.
• Implement REST APIs, asynchronous workflows and event-driven patterns.
• Ensure proper authentication, authorization, retries and observability.

Skills

Python

REST APIs

CI/CD

OAuth 2.0 / OIDC / JWT

Observability

Tools

FastAPI

Azure

Azure API Management

Azure Service Bus / Event Grid

SQL/NoSQL

Redis

Dynamics 365 Web API

Job description

We need solid Python Backend engineer , Fast API, and Azure for this roe and other must have.

Senior Backend Engineer

Location : Austin Texas Hyrbid

Interview : Video Interview

ROLE MANDATE

Build the backend services, APIs and orchestration layer behind the Sales Command Center. The 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.

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