Senior Backend Developer (.NET / Azure / AI)

About us:

Talent has no borders. Proxify's mission is to connect top developers around the world with the opportunities they deserve. So, it doesn't matter where you are; we are here to help you fast-track your independent career in the right direction.

Since our launch, Proxify's developers have successfully worked with 1200+ happy clients to build their products and growth features. 5000+ talented developers trust Proxify and its network to fulfill their dreams and objectives.

Proxify is shaped by a global network of supportive, talented developers interested in remote full-time jobs. Our Glassdoor (4.5/5) and Trustpilot (4.8/5) ratings reflect the trust developers place in us and our commitment to our members' success.

The Role:

We are looking for a Senior Backend Developer for one of our clients. By leveraging Large Language Models (LLMs), our client aims to transform our comprehensive reporting module into an intuitive, conversational intelligence layer.

As a Senior Backend Developer, you will be the architect behind this transition. Your mission is to bridge the gap between our rich, granular operational datasets and secure, context-aware natural language querying. You will design the next generation of AI-powered data access, lowering the barrier to insight and enabling users to surface strategic information through intelligent conversation.

You are a perfect candidate if you are growth-oriented, you love what you do, and you enjoy working on new ideas to develop exciting products.

What we are looking for:

• Deep professional knowledge of .NET (Framework & Core) and Entity Framework (6 & Core).
• Strong experience navigating the broad Azure ecosystem within enterprise-grade environments (Azure OpenAI Service, App Services, Service Bus).
• Proven track record in performance optimization, specifically handling and querying large-scale operational datasets.
• Ability to design secure, scalable integration layers between LLMs and existing data infrastructure.
• A commitment to SOLID principles and building maintainable, testable backend services.
• Time zone: CET (+/- 3 hours). We are unable to consider applications from candidates in other time zones.

Nice-to-Have

• Experience building proactive monitoring and alerting solutions based on client data patterns (rather than just infrastructure health).
• Familiarity with Semantic Kernel, LangChain, or direct integration with Azure OpenAI APIs.
• Understanding of vector search/embeddings for context-aware data retrieval.

Responsibilities:

• Design and implement the backend logic to enable natural language interaction over complex datasets.
• Work closely with the data team to ensure LLMs have secure, performant access to the right context and metadata.
• Identify and resolve bottlenecks in data retrieval to ensure conversational AI responses are near-instantaneous.
• Transition our core product from traditional reporting to proactive, AI-driven insight generation.
• Ensure all AI-driven data access adheres to strict enterprise-grade security and privacy standards.

What we offer:

Get paid, not played

No more unreliable clients. Enjoy on-time monthly payments with flexible withdrawal options.

Predictable project hours

Enjoy a harmonious work-life balance with consistent 8-hour working days with clients.

Flex days, so you can recharge

Enjoy up to 24 flex days off per year without losing pay, for full-time positions found through Proxify.

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Compensation

Enjoy the same pay, every month with positions landed through Proxify.