<h3><strong>About us:</strong></h3> <p> </p> <p>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. 🙂</p> <p>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.</p> <p>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.</p> <p> </p> <h3><strong>The Role:</strong></h3> <p> </p> <p>We are looking for a Senior Python AI Engineer to join our fast-growing Network, who will design and develop backend systems and APIs for AI-powered applications. You will play a key role in designing and building scalable backend systems and APIs, collaborating closely with cross-functional teams to shape the future of data-driven products across various platforms.</p> <p> </p> <h4><strong>What we are looking for:</strong></h4> <p> </p> <ul> <li>Strong proficiency in Python (5+ years), including modern frameworks (FastAPI, Flask, or Django).</li> <li>Deep learning frameworks (PyTorch, TensorFlow) for custom modeling beyond LLM APIs.</li> <li>Experience with large language models (LLMs) such as GPT, Gemini, LLaMA, or similar.</li> <li>Experience with prototyping tools: Streamlit, Gradio</li> <li>Solid experience designing RESTful APIs and microservice architectures.</li> <li>Strong backend development expertise, including databases (SQL/NoSQL).</li> <li>Experience with version control (Git) and CI/CD workflows.</li> <li>Hands-on experience with containerization (Docker, ideally Kubernetes).</li> <li>Familiarity with cloud platforms (AWS, Azure, or GCP) is a plus.</li> <li>Understanding of security best practices for handling sensitive data.</li> <li>Strong problem-solving skills to address complex challenges and performance bottlenecks.</li> <li>Excellent technical communication skills to collaborate effectively across teams and explain technical concepts to non-technical stakeholders.</li> <li>Ability to work independently while aligning with broader team goals.</li> <li>Intermediate-advanced English level.</li> <li>Time zone: CET (+/- 3 hours). We are unable to consider applications from candidates in other time zones.</li> </ul> <p> </p> <h4><strong>AI/ML &amp; LLM Ecosystem:</strong></h4> <p> </p> <ul> <li>LLM orchestration frameworks: LangChain, LangGraph, LlamaIndex.</li> <li>Retrieval-Augmented Generation (RAG) pipeline design.</li> <li>Experience with vector databases (Pinecone, Weaviate, Milvus, Chroma, FAISS).</li> <li>Hands-on with LLMs &amp; APIs: OpenAI (GPT-5/5-mini), Anthropic Claude, Google Gemini, M