Website:
rexahire.com
Job details:
Company Description
Rexa Technologies is an innovative software startup based in Kerala, focused on building next-generation digital products powered by AI. We specialize in developing scalable, intelligent, and user-centric applications that help businesses automate workflows, improve customer engagement, and unlock new growth opportunities.
Our approach combines modern full-stack engineering with advanced AI capabilities such as LLM integrations, RAG systems, and automation pipelines. At Rexa, we prioritize clean architecture, rapid iteration, and real-world impact.
Role Description
This is a full-time remote role for a Full-Stack AI Developer.
You will be responsible for building and scaling modern AI-powered applications using React (frontend) and Python FastAPI (backend). The role involves designing end-to-end systems, integrating LLMs, implementing RAG pipelines, and optimizing performance for real-world production use cases.
You’ll work closely on building intelligent products such as AI agents, customer engagement systems, and automation tools.
Key Responsibilities
Develop scalable frontends using React / Next.js
Build high-performance APIs using Python FastAPI
Design and implement RAG (Retrieval-Augmented Generation) systems
Integrate LLMs using frameworks like LangChain / LlamaIndex
Optimize AI pipelines for latency, cost, and accuracy
Work with vector databases and embeddings
Build and deploy AI-powered features (chat systems, agents, automations)
Collaborate in a remote team and ship production-ready features fast
Continuously experiment with new AI tools and frameworks
Required Skills
Strong experience in React (frontend development)
Strong backend development using Python + FastAPI
Experience with REST APIs, async systems, and scalable architecture
Hands-on experience with RAG, embeddings, and vector databases
Familiarity with LangChain, LLM APIs, or similar frameworks
Solid understanding of system design and debugging
Good to Have (Highly Preferred)
Experience with tools like Cursor, Claude Code, Antigravity, or similar AI dev tools
Experience building AI agents / automation workflows
Knowledge of prompt engineering and LLM optimization
Experience with Docker / deployment pipelines
Prior work on AI SaaS or production AI systems
Who You Are
You build fast and learn faster
You’re comfortable working in a startup environment
You enjoy experimenting with cutting-edge AI tech
You focus on shipping real products, not just prototypes
Education
Bachelor’s degree in Computer Science, Software Engineering, or equivalent practical experience.
Click on Apply to know more.