Senior Fullstack Engineer (.NET & React)

Overview

Our client, a Fortune 50 company, is seeking Senior FS Engineers with main skill .NET Core and React/typescript to work on an AI-native engineering platform. The goal is to merge existing software delivery and AI tools into a singular, integrated platform, enabling the firm to compete effectively with large engineering firms.

The ideal candidate will have a consulting approach and engineering mindset. You will be responsible for developing and optimizing backend and frontend if needed, in a microservices-based architecture. You will work closely with cross-functional teams to ensure high-quality software delivery.

This is a remote-first position for engineers based in Europe, Turkey, the Middle East, Georgia, and Armenia with a required overlap of US working hours (2-7 PM CET).

Role & Responsibilities

As an FS Developer, you will:

• Develop and maintain backend services using .NET, C# and React.
• Do AI Agent Development.
• Implement microservices architecture, ensuring scalability and reliability.
• Utilize containerization technologies like Docker and Kubernetes for deployment and orchestration.
• Work with databases including MS SQL, NoSQL, and Redis for efficient data storage and retrieval.
• Integrate authentication mechanisms using OAuth2 and JWT.
• Collaborate with DevOps teams to implement CI/CD pipelines and ensure smooth deployments.
• Apply security best practices, following OWASP guidelines to prevent vulnerabilities like SQL Injection (SQLi), Cross-Site Scripting (XSS), and Cross-Site Request Forgery (CSRF).
• Utilize Azure services, such as AppService, Service Bus, Functions, and SQL Database, for cloud-based hosting and scaling.

Required Skills & Experience

• Backend: .NET (Core), C#, ASP.NET Core, Entity Framework Core
• Frontend: React, Typescript
• Architecture: Microservices, CQRS, Dependency Injection
• Databases: MS SQL, NoSQL, Redis
• Cloud & DevOps: Azure (AppService, Functions, Service Bus, SQL Database), Docker, Kubernetes, GitHub, CI/CD
• Testing & Debugging: xUnit/NUnit, Profiling tools, Static code analysis, Postman, Fiddler
• Frontend: React/Angular, HTML, CSS

Soft Skills

• Strong analytical and problem-solving skills, with the ability to diagnose and resolve complex issues under pressure.
• Excellent communication skills, capable of explaining technical concepts to both technical and non-technical stakeholders.
• Ownership mindset – the ability to work independently and as part of a team while taking full responsibility for assigned tasks.
• Proactive attitude – the ability to escalate issues early, follow up on blockers, and support teammates when needed.
• Constructive feedback approach – ability to receive and provide feedback in a way that improves overall team performance.

Preferred Experience

• Azure DevOps for continuous integration and deployment.
• AI Development experience
• Security best practices (OWASP, authentication standards).
• Design patterns and software architecture knowledge.

Work Conditions

• Start Date: ASAP
• Location: Fully Remote
• Onsite Requirements: None (except potential team meetings/workshops)
• US Time Zone Overlap: Required (2 PM – 7 PM CET)

If you are passionate about building AI application and scalable systems with modern tech stacks and enjoy working in a collaborative, fast-paced environment, this opportunity with our client is perfect for you!