Business Application Developer - Fullstack

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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

• 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.

Key Accountabilities/Deliverables:

• 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)

Technical Knowledge and Understanding:

• 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

Experience:

• 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. 
#LI-Hybrid
 

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At Core Specialty, you will receive a competitive salary and opportunities for professional development and advancement.  We offer medical, dental, vision, and life insurances; short and long-term disability; a Company-match of 100% of a 6% contribution 401(k) plan; an Employee Assistance Plan; Health Savings Account, Flexible Spending Account, Health Reimbursement Account, and a wellness program