Business Application Developer - Fullstack

Core Specialty Insurance Holdings, Inc.•Cincinnati, OH

1d•Hybrid

About The Position

We are seeking a Business Application Developer to design, build, and modernize enterprise business applications aligned to cloud-first architecture principles. This role focuses on developing scalable, cloud-native applications, enabling business process automation and integration, and delivering secure, compliant, and high-performance solutions. The ideal candidate combines full-stack engineering expertise with enterprise integration and business process understanding, supporting Core Specialty’s digital transformation initiatives.

Requirements

Bachelor’s degree in Computer Science or related field
5+ years of experience in application development and enterprise systems
Experience in cloud-native application delivery (Azure preferred)
Strong understanding of API design, integrations, and distributed systems
Experience in regulated environments (insurance/financial services preferred)
Applicants must be authorized to work for any employer in the U.S. We are unable to sponsor or take over work authorization sponsorship now or in the future for this position.

Nice To Haves

Azure Container Apps, Functions
API Management (APIM)
Key Vault
Azure Monitor / Log Analytics
Backend: .NET Core, ASP.NET APIs
Frontend: React, Angular, Next.js
Languages: C#, TypeScript, JavaScript
Azure SQL
Cosmos DB
PostgreSQL / MySQL
GitHub
CI/CD pipelines
Docker / Container experience
Terraform

Responsibilities

Design and build enterprise applications using .NET Core, C#, REST APIs
Develop modern UI experiences using React, Angular, or Next.js
Translate business requirements into scalable application designs
Integrate applications with core platforms (e.g., Duck Creek, internal APIs)
Deliver solutions leveraging Microsoft Azure (App Services, Functions, Container Apps)
Implement serverless and microservices-based architectures
Design for high availability, scalability, and resiliency
Align with enterprise cloud governance and architecture standards
Develop and manage integrations using: API-first design and Event-driven patterns
Work with data platforms: Azure SQL, Blob Storage, Cosmos DB
Ensure data consistency, performance optimization, and security
Build and maintain CI/CD pipelines (GitHub Actions / Azure DevOps)
Implement Infrastructure as Code (Terraform / Bicep)
Enable containerized deployments (Docker, Kubernetes optional)
Integrate security scanning, approvals, and environment controls
Integrate Azure Key Vault, identity controls, and secrets management
Ensure adherence to enterprise security standards and regulatory compliance (insurance/financial services)
Implement secure coding practices and vulnerability remediation
Implement monitoring using: Azure Monitor, Application Insights, Datadog
Support incident response, debugging, and root cause analysis
Contribute to SRE practices (SLAs, SLOs, error budgets)
Participate in Agile ceremonies (Sprint planning, standups, retrospectives)
Collaborate with Architects, Platform engineers, and Security teams
Contribute to architecture discussions and solution design decisions
Develop Architecture diagrams, Deployment runbooks, and Integration documentation
Contribute to enterprise knowledge base (Confluence)