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Bizcollab360 Tech Pvt Ltd

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Mid-Level Python Full Stack Developer – AI & SaaS Applications

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Summary

Mid-level Python full stack developer (3-5 yrs) building scalable SaaS platforms: Django backend services and REST APIs, React frontends, Celery tasks, and PostgreSQL with pgvector. The role also develops RAG-based AI chatbots using LLM platforms (Claude, OpenAI) and deploys on AWS (EC2, S3, RDS, Lambda) with CI/CD.

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
  • Strong 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


Skills

See also

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