Senior Full-Stack Engineer

Job Description

Responsibilities

• Build and maintain .NET 10 Web APIs using clean dependency injection and asynchronous programming.
• Strictly follow pre-existing DDD and Onion/Hexagonal hybrid architectures and SOLID principles to keep the codebase decoupled.
• Handle complex SQL Server transactions, optimize queries, and maintain versioned API contracts via OpenAPI/Swashbuckle.
• Maintain and optimize read-heavy Razor Views, View Components, and Partials.
• Utilize Tailwind CSS, HTMX, or Alpine.js for clean, responsive UI layouts.
• Enforce traditional web patterns like POST-Redirect-GET (PRG) and antiforgery tokens for secure form submissions.

• Own secure API integrations with enterprise payment ecosystems (e.g., J.P. Morgan Chase, Stripe, Square).
• Implement strict application-level security, ensuring PII and financial data (credit card numbers) are never exposed or logged.
• Safely consume cloud configurations and credentials managed via Azure Key Vault and App Services.

• Write comprehensive unit, integration, and contract tests using MSTest/NUnit and Playwright.
• Operate successfully as a solo individual contributor within an Azure DevOps (Agile/Kanban) framework.

Qualifications and Job Requirements

• Experience: 8+ years in software development, with 5+ years dedicated to .NET Core / ASP.NET Core (Web API & MVC Razor).
• Modern Stack: Strong proficiency with .NET 10 and C# 14 (Async, DI).
• Architecture: Proven expertise working within established DDD, Onion, or Hexagonal patterns.
• Payment Gateways: Hands-on integration experience with major financial APIs (e.g., J.P. Morgan Chase, Stripe, Square).
• Web Mechanics: Deep understanding of SSR, the HTTP lifecycle, antiforgery tokens, and the POST-Redirect-GET (PRG) pattern.
• Data Privacy: Strict adherence to application-level security, ensuring PII and credit card data are never exposed or logged.
• Database & Cloud: Strong SQL Server transaction optimization paired with Azure configuration management (App Services, APIM, Key Vault).
• Execution: Proven ability to operate autonomously as a solo individual contributor within Azure DevOps (Agile/Kanban).

Are you interested in this position?
Apply by clicking on the “Apply Now” button below!
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