Proxify AB: Senior Python AI Engineer

<p> <strong>Headquarters:</strong> Sweden <br /><strong>URL:</strong> <a href="http://career.proxify.io">http://career.proxify.io</a> </p> <div> <p><strong>The Role:</strong></p> <p>&nbsp;</p> <p>We are looking for a&nbsp;<strong>Senior Python AI Engineer</strong>&nbsp;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>&nbsp;</p> <p>&nbsp;</p> <p><strong>What we are looking for:</strong></p> <p>&nbsp;</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>&nbsp;</p> <p><strong>AI/ML &amp; LLM Ecosystem:</strong></p> <p>&nbsp;</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, Meta Llama, Mistral.</li> <li>Familiarity with AWS Bedrock for accessing and deploying foundation models.</li> <li>Prompt engineering and structured output design (JSON mode, function calling).</li> <li>Model fine-tuning (LoRA, QLoRA) and evaluation frameworks (DeepEval, Ragas).</li> </ul> <p>&nbsp;</p> <p><strong>Responsibilities:</strong></p> <p>&nbsp;</p> <ul> <li>Design and develop backend systems and APIs for AI-powered applications.</li> <li>Build and optimize LLM-based workflows, including chatbots, copilots, and automation tools.</li> <li>Implement RAG architectures using vector databases and document pipelines.</li> <li>Integrate and orchestrate cloud-hosted foundation models (AWS Bedrock, OpenAI, Anthropic, Google Gemini, Meta Llama, Mistral).</li> <li>Collaborate cross-functionally with data scientists, product managers, and frontend developers to deliver end-to-end AI products.</li> <li>Ensure performance, scalability, and cost optimization of AI solutions in production environments.</li> <li>Monitor, evaluate, and continuously improve deployed AI systems.</li> </ul> </div> <div>&nbsp;</div> <div><strong>What we offer:</strong></div> <div>&nbsp;</div> <div><strong>Get paid, not played</strong></div> <div>No more unreliable clients. Enjoy on-time monthly payments with flexible withdrawal options.</div> <div>&nbsp;</div> <div><strong>Predictable project hours</strong></div> <div>Enjoy a harmonious work-life balance with consistent 8-hour working days with clients.</div> <div>&nbsp;</div> <div><strong>Flex days, so you can recharge</strong></div> <div>Enjoy up to 24 flex days off per year without losing pay, for full-time positions found through Proxify.</div> <div>&nbsp;</div> <div><strong>Career-accelerating positions at cutting-edge companies</strong></div> <div>Discover exclusive long-term remote positions at the world's most exciting companies.</div> <div>&nbsp;</div> <div><strong>Hand-picked opportunities, just for you</strong></div> <div>Skip the typical recruitment roadblocks and biases with personally matched positions.</div> <div>&nbsp;</div> <div><strong>One seamless process, multiple opportunities</strong></div> <div>A one-time contracting process for endless opportunities, with no extra assessments.</div> <div>&nbsp;</div> <div><strong>Compensation</strong></div> <div>Enjoy the same pay, every month with positions landed through Proxify.</div> <div>&nbsp;</div> <p><strong>To apply:</strong> <a href="https://weworkremotely.com/remote-jobs/proxify-ab-senior-python-ai-engineer-4">https://weworkremotely.com/remote-jobs/proxify-ab-senior-python-ai-engineer-4</a></p>