Relixir is experiencing rapid growth (166% MoM) and needs to scale its platform and AI capabilities to meet customer demand in the SEO/GEO Growth Marketing space. The company aims to automate marketing functions for its clients and is seeking founding engineers to contribute to product and technology development.
Requirements
- Strong proficiency in Python and TypeScript
- Experience with Docker, FastAPI, PostgreSQL, and AWS
- Built and deployed a complex agentic/LLM-backed (context engineering, RAG with vector db) into production to customers
- Have completed at least one 0 -> 1 journey of a functional product
- Experience working with any of AWS ECS + SQS + Fargate, QDrant, LangChain
Responsibilities
- Building and scaling services in Python (FastAPI) with PostgreSQL as our primary database.
- Managing AWS infrastructure — primarily ECS/Fargate, Lambda, S3, and related services.
- Designing APIs for our frontend (TypeScript) and partner integrations.
- Building agentic workflows and pipelines for large-scale LLM calls (OpenAI, Gemini, Perplexity).
- Designing and maintaining RAG (Retrieval-Augmented Generation) systems using Qdrant for vector search.
- Optimizing prompt engineering, retrieval strategies, and evaluation systems.
- Design and deploy large-scale AI workflows – multi-agent pipelines, RAG architectures with Qdrant, and high-volume LLM call orchestration.
Other
- In-person SF
- High-agency
- Experience building backend & AI software for VC-backed startups
- Deeply Curious
- Relentlessly Driven
