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Full Stack Engineer

COZZERA INTERNATIONAL LLP

2 - 5 years

Surat

Posted: 12/12/2025

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Job Description

Position: Full Stack Engineer (ReAct, Python, AWS, LLM APIs)


Experience: 5+ Years

Location: Remote India

Shift: 2 PM 11 PM IST


We are seeking a highly skilled Full Stack Engineer with strong expertise in React (ReAct pattern), Python backend development, AWS cloud services, and SQL . You will build scalable, high-performance, cloud-native applications while integrating frontier LLM APIs into modern workflows.

This is a hands-on engineering role where youll work across the entire stack from UI/UX to backend services, cloud infrastructure, and AI-driven features.

Key Responsibilities

  • Develop high-performance frontend applications using React with modern patterns and architecture.
  • Build scalable backend services using Python (FastAPI / Flask / Django) .
  • Design and optimize SQL queries and schemas in RDS databases (PostgreSQL/MySQL).
  • Deploy and manage services on AWS EC2, RDS, S3, API Gateway, Lambda .
  • Integrate frontier LLM APIs (OpenAI, Anthropic, Gemini, Llama APIs) into product features.
  • Build reusable components, APIs, and microservices with secure coding best practices.
  • Work with CI/CD pipelines, Git workflows, and cloud-native deployment patterns.
  • Collaborate with product, design, and AI teams to ship features end-to-end.
  • Ensure performance, reliability, scalability, and observability across services.
  • Write clean, maintainable, and well-documented code following best practices.

Required Skills

  • 5+ years of experience as a Full Stack Engineer.
  • Strong hands-on experience with React (hooks, context, component design, state management).
  • Expertise in Python backend frameworks and API development.
  • Strong SQL skills: schema design, query optimization, indexing.
  • Deep knowledge of AWS EC2, RDS, S3, IAM, VPC .
  • Experience working with frontier LLM APIs (OpenAI, Claude, Gemini, Llama).
  • Understanding of modern architectural patterns: MVC, microservices, event-driven systems.
  • Strong debugging and performance optimization skills.

Nice to Have

  • Experience with serverless (AWS Lambda).
  • Familiarity with LangChain, LlamaIndex, or vector DBs.
  • Docker and Kubernetes experience.
  • Experience with authentication frameworks (OAuth2, JWT).
  • Knowledge of caching systems (Redis).

Soft Skills

  • Excellent communication and remote collaboration skills.
  • Ability to work independently and own features end-to-end.
  • Problem-solving mindset with attention to detail.
  • Strong adaptability to AI-first development workflows

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