Senior Backend Engineer – Python (AI-Powered Systems)

JK Lucent Pty Ltd.; India; On-site; INR 1,400,000 - 2,000,000; Full time

Job summary

JK Lucent seeks a Senior Backend Engineer – Python to design scalable, real-time backend services powering AI platforms and chatbot/voice bot applications. You will lead backend development and mentor teammates, collaborating with AI, product, and frontend teams across Australia and India.

The role is onsite at Infopark Koratty, Kerala, requiring 5+ years in Python backend development with strong FastAPI, SQLAlchemy, and data systems knowledge.

Qualifications

• 5–6 years of experience in Python backend development, preferably in AI product environments.
• Proven experience designing backend architectures from scratch for real-time or intelligent systems.
• Strong knowledge of FastAPI, Pydantic, SQLAlchemy, Alembic.
• Experience with PostgreSQL, MySQL, and database design best practices.
• Familiarity with Docker and CI/CD tools; Git workflows.
• Experience deploying LLM-powered applications, including chatbots or voice bots.
• Ability to perform code reviews and mentor team members.

Responsibilities

• Architect and implement scalable Python-based backend services for AI-driven apps.
• Design modular codebases and database schemas.
• Lead and mentor backend developers through development lifecycle.
• Develop APIs using FastAPI with Pydantic validation and async support.
• Use SQLAlchemy and Alembic for ORM and migrations.
• Integrate Celery for background processing.
• Build and optimize PostgreSQL/MySQL databases.
• Integrate LLMs into backend for conversational AI capabilities.
• Apply AI/NLP libraries in production.
• Containerize with Docker and maintain Git-based version control.
• Contribute to CI/CD pipelines and conduct code reviews.
• Ensure security, reliability, and production-grade quality.

Skills

Python backend

FastAPI

Pydantic

SQLAlchemy

Alembic

Celery

LLM libraries

NLTK

scikit-learn

PostgreSQL

MySQL

Docker

CI/CD

Git

Code reviews

Tools

OpenAI SDK

HuggingFace

Job description

JK Lucent is a Melbourne-based IT services company with a strong delivery centre in India. We specialise in AI-driven solutions, software engineering, quality assurance, and data analytics. We are seeking an experienced Senior Backend Engineer – Python (AI-Powered Systems) to design and build scalable, high-performance backend systems that power our AI platforms and intelligent applications. You will work closely with our AI, product, and frontend teams in Australia and India to deliver secure, reliable, and production-grade systems.

About The Role:

Location: Infopark Koratty, Chalakkudy, Kerala
Employment Type: Full-Time, Onsite
Experience: 5+ Years
We are looking for a Senior Backend Engineer – Python who has a solid foundation in backend architecture, real-time systems, and Python development. You will be leading the backend development of AI-powered applications, particularly chatbots and voice bots. This role involves hands‑on system design, team mentoring, and building robust, secure, scalable services.

Key Responsibilities:

• Architect and implement scalable Python-based backend services, particularly for AI-driven applications (e.g., chatbots, voice bots).
• Design modular and maintainable codebases, including setting up repository structures and database schema design.
• Lead and mentor developers through all phases of development—from concept to deployment.
• Develop APIs using FastAPI, with robust validation using Pydantic and asynchronous capabilities.
• Implement ORM and migrations using SQLAlchemy and Alembic.
• Integrate task queues using Celery and background processing effectively.
• Build and optimize database systems, including MySQL, PostgreSQL, and related tools.
• Integrate LLMs (e.g., OpenAI, HuggingFace Transformers) into backend systems to support conversational AI capabilities.
• Use AI/NLP libraries such as NLTK, scikit‑learn, or equivalents in production-level applications.
• Implement containerization using Docker and maintain version control with Git.
• Contribute to and maintain CI/CD pipelines for smooth and reliable deployments.
• Conduct code reviews to ensure high‑quality, maintainable, and well‑documented code.

Requirements:

• 5–6 years of experience in Python backend development, preferably in AI product environments.
• Proven experience in designing backend architectures from scratch for real‑time or intelligent systems.
• Strong knowledge of:
  • FastAPI, Pydantic, SQLAlchemy, Alembic
  • Celery, Purest, LLM‑specific libraries (e.g., OpenAI SDK, HuggingFace)
  • AI/ML‑related Python libraries: NLTK, scikit‑learn
• Experience with PostgreSQL, MySQL, and database design best practices.
• Familiarity with containerization using Docker and basic knowledge of CI/CD tools and Git workflows.
• Experience deploying and integrating LLM‑powered applications, including chatbots or voice bots, into production.
• Strong understanding of software engineering best practices, with experience conducting code reviews and mentoring team members.

Nice To Have:

• Experience in multi‑tenant or multi‑service application design.
• Exposure to cloud platforms like AWS, Azure, or GCP.

Become a part of JK Lucent Family

A group of people having passion towards what they do is the driving force behind all the accomplishments by JK Lucent made so far. We trust the abilities of our employees and encourage them to explore their talents, stretch themselves beyond their potential and realize their true capabilities. At JK Lucent, the safety, health and well‑being of our employees is of paramount importance and over the past several weeks we have taken a series of preventive measures to protect our employees from the Coronavirus outbreak and ensure business continuity for our customers.