Fullstack Developer

Crefio; Mumbai; On-site; INR 900,000 - 1,300,000; Full time

Job summary

Crefio in Mumbai is seeking a capable Full Stack Developer to build and maintain scalable web and mobile apps with AI/GenAI integration. You will work across backend and frontend, deploying AI/ML models and integrating them into production fintech use cases.

The role requires 0-2 years of experience, strong Python/Django/React skills, and a solid understanding of REST APIs and Docker deployments. Join a fast-paced team delivering end-to-end features.

Qualifications

• Bachelor's degree in Computer Science or related field.
• 0-2 years of experience in full-stack development.
• Strong knowledge of Python, Django REST Framework, React.js, and PostgreSQL.
• Good understanding of REST APIs, Git, Docker, and deployment processes.
• Hands-on experience with AI/ML, RAG, LLMs, embeddings, or fine-tuning is preferred.

Responsibilities

• Develop, integrate, and maintain scalable web and mobile applications with exposure to AI/ML, GenAI, RAG, and model fine-tuning.
• Frontend: React.js, Tailwind CSS, React Native, Framer Motion.
• AI/GenAI: LLMs, RAG, embeddings, vector databases, prompt engineering, model fine-tuning, LLM inference and deployment.
• Develop and maintain REST APIs using Django REST Framework.
• Build responsive web applications using React.js and Tailwind CSS.
• Develop mobile applications using React Native.
• Design and optimize PostgreSQL databases.
• Deploy and manage applications using Docker, Nginx, and Gunicorn.
• Integrate and deploy ML, AI, OCR, and computer-vision models into production applications.
• Work on RAG pipelines, embeddings, vector databases, and LLM-based applications.
• Work with LLM fine-tuning, model optimization, evaluation, and inference.
• Integrate AI/ML solutions into fintech and lending use cases.
• Debug, optimize, and maintain existing applications.
• Work closely with product and engineering teams to deliver end-to-end features.

Skills

Full stack development

REST APIs

Problem solving

Education

Bachelor's degree in Computer Science or related field

Tools

Python

Django REST Framework

React.js

PostgreSQL

Git

Docker

Nginx

Gunicorn

React Native

Tailwind CSS

Framer Motion

Job description

Bachelor's degree in Computer Science, IT, Electronics & Computer Engineering, or a related field.0-2 years of experience in full-stack development.Strong knowledge of Python, Django REST Framework, React.js, and PostgreSQL.Good understanding of REST APIs, Git, Docker, and deployment processes.Hands-on experience with AI/ML, RAG, LLMs, embeddings, or fine-tuning is preferred.Experience with ML/computer-vision technologies is a plus.

What you'll do

• We are looking for a Full Stack Developer responsible for developing, integrating, and maintaining scalable web and mobile applications, with hands‑on exposure to AI/ML, Generative AI, RAG, and model fine‑tuning.
• Frontend: React.js, Tailwind CSS, React Native, Framer Motion
• AI / GenAI: LLMs, RAG, embeddings, vector databases, prompt engineering, model fine‑tuning, LLM inference and deployment

Key Responsibilities

• Develop and maintain REST APIs using Django REST Framework.
• Build responsive web applications using React.js and Tailwind CSS.
• Develop mobile applications using React Native.
• Design and optimize PostgreSQL databases.
• Deploy and manage applications using Docker, Nginx, and Gunicorn.
• Integrate and deploy ML, AI, OCR, and computer‑vision models into production applications.
• Work on RAG pipelines, embeddings, vector databases, and LLM‑based applications.
• Work with LLM fine‑tuning, model optimization, evaluation, and inference.
• Integrate AI/ML solutions into fintech and lending use cases.
• Debug, optimize, and maintain existing applications.
• Work closely with product and engineering teams to deliver end-to-end features.

Nice to have

• Strong problem-solving and debugging skills.
• Ability to work independently and take ownership of tasks.
• Good understanding of clean, scalable, and maintainable code.
• Experience in fintech, lending, banking, or financial technology is an added advantage.
• Candidates should be comfortable working across backend, frontend, mobile, deployment, AI/ML, and GenAI integrations.