Senior AI Engineer (Python | RAG | Agentic AI | Chatbots)
Worldwide
We’re looking for a skilled Senior AI / LLM Engineer to join our growing team and help design, build, and optimize intelligent systems powered by modern language models. In this role, you will lead the development of advanced AI agents and Retrieval-Augmented Generation (RAG) systems, driving innovation across our platform. You will work extensively with Python to develop scalable backend services and automation workflows, enabling seamless integration of AI capabilities into real-world applications. A strong focus will be placed on performance, reliability, and system scalability. As part of a collaborative, cross-functional environment, you’ll partner with product, engineering, and data teams to deliver impactful AI-driven solutions. You’ll also play a key role in leveraging tools such as LangChain and Claude to build robust, production-ready LLM applications. Key Responsibilities: • Design and implement AI agents and RAG-based architectures • Develop and maintain backend systems using Python • Build and optimize LLM-powered workflows and automation pipelines • Integrate APIs and external tools to enhance AI capabilities • Collaborate with cross-functional teams to deliver scalable solutions • Continuously improve system performance, reliability, and efficiency Requirements: • Proven experience in AI/LLM engineering and backend development • Strong proficiency in Python and automation frameworks • Hands-on experience with RAG systems and AI agents • Familiarity with tools like LangChain and Claude • Solid understanding of scalable system design and performance optimization • Ability to work in a fast-paced, collaborative environment If you’re passionate about building cutting-edge AI systems and pushing the boundaries of what’s possible with LLMs, we’d love to hear from you.
$20.00
Fixed-price- ExpertExperience Level
- Remote Job
- One-time projectProject Type
Skills and Expertise
Activity on this job
- Proposals:20 to 50
- Last viewed by client:yesterday
- Hires:1
- Interviewing:0
- Invites sent:1
- Unanswered invites:0
About the client
- United StatesTraverse City11:34 PM
- $3K total spent214 hires, 21 active
- HR & Business ServicesSmall company (2-9 people)
Explore similar jobs on Upwork
How it works
Create your free profileHighlight your skills and experience, show your portfolio, and set your ideal pay rate.
Work the way you wantApply for jobs, create easy-to-by projects, or access exclusive opportunities that come to you.
Get paid securelyFrom contract to payment, we help you work safely and get paid securely.
About Upwork
- 4.9/5(Average rating of clients by professionals)
- G2 2021#1 freelance platform
- 49,000+Signed contract every week
- $2.3BFreelancers earned on Upwork in 2020
Find the best freelance jobs
Growing your career is as easy as creating a free profile and finding work like this that fits your skills.
Trusted by