Senior Full-Stack Developer – C# / .NET / Azure / AI - Europe / Easter Europe only

Astra Heed

Actively Hiring

Developing platforms and tools supporting businesses in their enhancements towards AI

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Senior Full-Stack Developer – C# / .NET / Azure / AI - Europe / Easter Europe only

• $45k – $48k • No equity
• |Remote ( Europe •

Eastern Europe )

• |Full Time

Posted: today• Recruiter recently active

Hires remotely in

Europe -

Eastern Europe

Remote Work Policy Remote only

Company Location

New York

Visa Sponsorship Not Available

Preferred Timezones Central European Time, Eastern European Time

RelocationAllowed

Skills

• Large-Scale Distributed Systems

• Microsoft Azure

• Microsoft .NET

• Angular

About the job

Role Overview

We are looking for a highly experienced Senior Full-Stack Developer with extensive expertise in designing, building, and maintaining scalable platforms and high-performance APIs using C# and .NET.

The ideal candidate will have strong backend development skills, a solid understanding of Azure cloud infrastructure and networking, and good working knowledge of Angular, Node.js, and Next.js.

We are also looking for a developer who actively embraces AI-assisted software development, understands generative AI technologies, and is comfortable using modern development tools such as Visual Studio, OpenAI Codex, and Cursor to improve productivity and code quality.

Key Responsibilities

• Design, develop, and maintain scalable backend platforms and RESTful APIs using C# and .NET Core / modern .NET.

• Architect reliable, secure, high-performance systems capable of handling significant traffic and data volumes.

• Develop and maintain applications and services hosted on Microsoft Azure.

• Work with Azure Blob Storage, static website hosting, CDNs, caching, and cloud-based content delivery.

• Troubleshoot issues involving networking, DNS, HTTP/HTTPS, SSL/TLS, routing, and infrastructure connectivity.

• Develop and maintain Angular applications and integrate frontend applications with backend APIs.

• Build and support API-driven applications and services using Node.js.

• Work with Next.js, including server-side rendering, static site generation, routing, and API integrations.

• Use AI-assisted development tools to accelerate coding, refactoring, debugging, testing, and technical problem-solving.

• Participate in architectural discussions, technical design, code reviews, and performance optimization.

• Ensure code quality, security, scalability, and maintainability across the application stack.

• Required Skills and Experience

• Backend Development – C# / .NET

• Extensive professional experience with C# and .NET Core / modern .NET.

• Proven experience designing and building scalable APIs, backend platforms, and distributed systems.

• Strong understanding of asynchronous programming, concurrency, performance optimization, and API security.

• Experience with microservices, service-oriented architecture, and system integration.

• Azure & Cloud Infrastructure

• Good understanding of Microsoft Azure services and cloud architecture.

• Experience with Azure Blob Storage and static website hosting.

• Knowledge of CDNs, caching strategies, and content delivery optimization.

• Familiarity with deployment, monitoring, and troubleshooting cloud-hosted applications.

• Networking

• Strong understanding of networking fundamentals, including DNS, TCP/IP, HTTP/HTTPS, SSL/TLS, firewalls, and load balancing.

• Ability to troubleshoot connectivity, latency, routing, and infrastructure-related issues.

• Frontend & JavaScript Technologies

• Good understanding of Angular and TypeScript.

• Working knowledge of Node.js for developing backend services and API-driven platforms.

• Good understanding of Next.js, including SSR, SSG, routing, and API integration.

• Understanding of frontend architecture, authentication, and communication with backend services.

• AI & Modern Development Tools

• Good understanding of generative AI and its practical applications in software development.

• Hands-on experience with AI-assisted development tools, particularly OpenAI Codex and Cursor.

• Strong proficiency with Visual Studio, including debugging, profiling, and development workflows.

• Experience using AI tools for code generation, refactoring, debugging, test creation, and documentation.

• Understanding of effective prompting, context management, and working with AI coding agents.

• Ability to critically evaluate AI-generated code for correctness, security, performance, and maintainability.

• Familiarity with integrating generative AI capabilities and LLM-based APIs into applications is an advantage.

• Desirable Experience

• Azure DevOps, GitHub Actions, and CI/CD pipelines.

• Docker and containerized applications.

• SQL Server, database design, and performance optimization.

• Redis, message queues, and event-driven architecture.

• Azure Front Door, Azure CDN, and related cloud infrastructure.

• OAuth 2.0, OpenID Connect, and JWT authentication.

• Application monitoring, observability, and logging.

• Experience with LLM APIs, retrieval-augmented generation (RAG), or AI-powered application development.

• Ideal Candidate

• We are looking for a senior, hands-on engineer with a backend-first mindset who understands how the entire application stack works together.

• The successful candidate should be able to take ownership of complex technical challenges, make sound architectural decisions, and troubleshoot issues across backend services, frontend applications, networking, and cloud infrastructure.

• They should also be enthusiastic about modern AI development workflows, using tools such as Codex and Cursor as a natural part of their daily engineering process while maintaining high standards of software quality.

• Above all, we value strong technical judgment, independence, practical problem-solving, and the ability to deliver scalable, production-ready solutions.

• Apply Now

About the company

Astra Heed

Actively Hiring

Developing platforms and tools supporting businesses in their enhancements towards AI11-50 Employees

New York

11-50

Artificial Intelligence

Learn more about Astra Heed

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