Senior Full Stack Engineer ID53175

AgileEngine•Aurora, CO

1d•Hybrid

About The Position

We are looking for a Senior Full Stack Engineer to build production-grade applications on a multi-tenant SaaS platform handling regulated healthcare data. You will work across .NET 8/9 and React + TypeScript, designing ASP.NET Core APIs and Azure-hosted multi-portal frontends, with AI-assisted development tools integrated into the engineering workflow.

Requirements

Recent, hands-on production experience with .NET 8 or 9 within the last two years
Experience designing and building RESTful services using ASP.NET Core Web API that serve multi-portal frontends
Experience with Entity Framework Core against PostgreSQL
Experience with async, event-driven patterns using Azure Service Bus or an equivalent message queue
Comfort designing service boundaries and contracts
Experience with multi-tenant SaaS architecture, including tenant isolation, audit trails, and configurable role models
Recent production experience with React + TypeScript for component-driven, multi-portal applications
Experience building mobile-responsive UX
Experience building or contributing to a shared frontend architecture
Deep Angular experience does not substitute for React production experience
Experience with Azure as the primary cloud, including Azure Container Apps, Azure Key Vault, Azure Service Bus, Azure Blob Storage, Azure Cache for Redis, and Azure Database for PostgreSQL Flexible Server
Experience with Azure DevOps end-to-end, including Azure Repos, Azure Pipelines, and familiarity with Azure Boards
Experience with Terraform for infrastructure as code
Experience with Azure Entra ID for SSO/SAML, enterprise identity, JWT, and RBAC patterns
HIPAA-aware engineering, including encryption, audit trails, minimum necessary access, and careful PHI handling
Healthcare or regulated-data background is strongly preferred
Experience using Claude Code or equivalent agentic tools for end-to-end feature development
Discipline around AI-generated code, including PR-based review, automated test gates, and eval-driven development
Comfort working in a C# + Claude Code loop
Upper-intermediate English level

Nice To Haves

Python (FastAPI) production experience
Familiarity with vector stores, LLM integration patterns, and prompt evals
Experience with hexagonal architecture, TDD, and clean code instincts
Experience integrating with payer or Medicaid systems
Experience with feature flag systems such as LaunchDarkly or PostHog
SOC 2 or StateRAMP experience
Experience working in a PE-backed scale-up environment with steering-group cadence

Responsibilities

Design, build, and maintain high-quality fullstack applications using modern technologies
Write clean, scalable, and maintainable code across both frontend and backend systems
Define and implement best practices for leveraging AI models to review, analyze, and improve code quality
Use AI tools to enhance development workflows and engineering productivity
Evaluate and implement AI-assisted development approaches across the engineering lifecycle
Collaborate with other engineers to improve development standards, code reviews, and technical architecture
Take ownership of technical solutions and drive engineering excellence across projects