We are looking for a highly motivated and hands-on Mid-Level Python Full Stack Developer with 3-5 years of experience to join our growing product engineering team. The ideal candidate should have strong experience in building scalable SaaS platforms using Python Django and React, along with exposure to AI-powered applications, RAG-based chatbot systems, and cloud-native deployments on AWS.
This role requires someone who can independently contribute and show Strong ownership and execution capabilities

Key Responsibilities

Development Design, develop, and maintain scalable backend services using Python and Django
Build secure and optimized REST APIs and integrations
Implement asynchronous task processing using Celery
Work with PostgreSQL databases including schema design, optimization, and query tuning
Implement vector-based search and semantic retrieval using pgvector
Develop responsive and modern user interfaces using React

AI & RAG-Based Application Development Build and integrate AI-powered chatbot solutions using RAG (Retrieval-Augmented Generation) architecture
Work with LLM platforms such as Claude, OpenAI, or similar AI ecosystems
Implement document ingestion, embeddings, semantic search, and contextual retrieval pipelines
Optimize prompt engineering and chatbot response workflows

Cloud & DevOps Deploy and manage applications on AWS




Work with services such as EC2, S3, RDS, Lambda, CloudWatch, IAM, etc.
Support CI/CD pipelines and production deployments
Monitor application performance and troubleshoot production issues

Required Technical Skills

Must Have Solid proficiency in Python and Django
Good experience with React.js
Experience with PostgreSQL
Knowledge of pgvector or vector database concepts
Hands-on experience with Celery and background job processing
Experience deploying and managing applications on AWS
Strong understanding of REST APIs and SaaS product architecture
Familiarity with Git-based version control workflows

AI/LLM Requirements Experience working with AI coding tools such as Claude Code
Understanding of RAG-based AI chatbot development
Experience with embeddings, vector search, prompt engineering, and LLM integrations

Preferred Qualifications Bachelor’s or Master’s degree in Computer Science or related field
Experience working in Agile/Scrum teams
Strong debugging and problem-solving skills
Good communication and ownership mindset
Ability to work independently with minimal supervision
Exposure to multi-tenant SaaS billing/subscription systems

Notice Period Preference Immediate Joiner / 15–30 Days Preferred

📌 Mid-Level Python Full Stack Developer – AI & SaaS Applications (Mumbai)
🏢 Bizcollab360 Tech
📍 Mumbai