GenAI Full Stack Engineer / Fullstack AI Engineer

Celebal Technologies; Ahmedabad District; On-site; INR 900,000 - 1,500,000; Full time

Job summary

Celebal Technologies in Ahmedabad, India is seeking an experienced Full Stack Developer to own applications end to end, building high-performance Python/FastAPI backends and modern Next.js/React front ends, and deploying to AWS with containerised CI/CD.

You will model data, design APIs, implement UI, and ensure security, performance, and reliability across the stack, collaborating with product, QA, and infra teams in a fast-paced delivery environment.

Qualifications

• Bachelor's degree or equivalent in CS/Engineering or related field.
• Proven track record shipping full-stack applications in production.
• Experience designing and consuming RESTful APIs with FastAPI.

Responsibilities

• Design, develop, and maintain full-stack features across Next.js front end and Python/FastAPI back end.
• Build robust RESTful APIs with authentication, validation and error handling.
• Develop responsive UI with Next.js/React (SSR/SSG) and state management.
• Implement multi-step agent workflows with tool/call routing and retries.
• Integrate LLM providers (OpenAI, Anthropic, AWS Bedrock) into apps.
• Create and maintain CI/CD pipelines for automated build, test, and deployment.

Skills

FastAPI

Next.js/React

AWS ECS/EC2

CI/CD

Agentic AI

Education

Bachelor's degree in Computer Science or equivalent

Tools

PostgreSQL

SQLAlchemy

Docker

Kubernetes (EKS)

Job description

Experience: 4–8 years

Engagement Type: Full-time

Technology Stack: Backend: Python + FastAPI · Frontend: Next.js / React · Cloud & DevOps: AWS ECS/EC2, Docker, CI/CD, Agentic AI / Gen AI, A2A, AGUI, DeepEval, LangFuse, LLM Observability, AWS bedrock agentcore, LangGraph

Role Summary

We are seeking an experienced Full Stack Developer who can own applications end to end — building high-performance Python/FastAPI backends, developing modern Next.js/React front ends, and taking services all the way to production on AWS through containerised, automated CI/CD pipelines. The ideal candidate is comfortable across the entire stack, from data modelling and API design to responsive UI development and cloud deployment, and thrives in a fast-paced, quality-focused delivery environment.

Key Responsibilities

• Design, develop, and maintain full-stack features spanning the Next.js front end and Python/FastAPI backend.
• Build robust, well-documented RESTful APIs with FastAPI, including authentication, validation, and error handling.
• Develop responsive, accessible, high-performance UIs in Next.js/React (SSR/SSG, App Router, state management).
• Build multi-step agent workflows involving tool/function calling, routing, state management, retries, and human-in-the-loop interactions.
• Integrate LLM providers such as OpenAI, Anthropic, AWS Bedrock, or equivalent platforms.
• Implement RAG pipelines for enterprise knowledge retrieval using vector databases/search platforms such as OpenSearch, or similar technologies.
• Model data and design database schemas; write efficient queries and manage migrations.
• Containerise applications with Docker and deploy to AWS ECS (Fargate/EC2) and EC2.
• Build and maintain CI/CD pipelines for automated build, test, and deployment.
• Ensure application security, performance, and scalability across the stack.
• Write unit and integration tests; participate in peer code reviews and uphold coding standards.
• Collaborate with product, QA, and infrastructure stakeholders; contribute to estimation and Agile ceremonies.

Must-Have Skills

• FastAPI — production experience building REST APIs; Pydantic models, dependency injection, OpenAPI/Swagger.
• Databases — PostgreSQL/MySQL, ORMs (SQLAlchemy), migrations.
• Auth & Security — JWT, OAuth2, secure handling of secrets and data.

Frontend

• Next.js / React — production experience with functional components, hooks, SSR/SSG, and the App Router.
• HTML5 / CSS3 — responsive design and component styling (Tailwind CSS or similar).

AWS

• AWS — hands-on with ECS and EC2 deployment; familiarity with S3, RDS, IAM, CloudWatch.

Docker

• Docker — building and optimising container images; registry management (ECR).

CI/CD

• CI/CD — designing and maintaining pipelines (GitHub Actions, GitLab CI, Jenkins, or AWS CodePipeline).

Agentic AI / GenAI

• Experience integrating LLMs such as OpenAI, Anthropic, or AWS Bedrock into applications.
• Understanding of Agentic AI, AI agents, tool/function calling, and multi-step workflows.
• Experience with RAG, embeddings, vector databases, and knowledge retrieval.
• Familiarity with agent frameworks.
• Experience building AI chat/streaming interfaces using React/Next.js; AG-UI or similar frameworks is a plus.

General

• Version control — Git-based workflows (branching, pull requests, code review).
• Microservices and event-driven architecture.

Good-to-Have Skills

• Async Python, background processing, and message/task queues (Celery, SQS, Kafka).
• Caching with Redis.
• Kubernetes (EKS) and observability tooling (Prometheus, Grafana, ELK, Datadog).
• AWS certifications (Solutions Architect / DevOps Engineer).

Qualifications

• Bachelor's degree in Computer Science, Engineering, or equivalent practical experience.
• Demonstrable track record of shipping and operating full-stack applications in production.

Key Attributes

• Strong problem-solving skills and ownership mindset across the full stack.
• Clear communicator, comfortable collaborating across product, engineering, and infrastructure teams.
• Quality-focused, with attention to security, performance, and maintainability.