AI Solutions Engineer: LLM APIs & Data Pipelines

Gigalabs (Pvt) Ltd.; Lahore; On-site; PKR 1,800,000 - 3,200,000; Full time

Job summary

Gigalabs (Pvt) Ltd. in Lahore (Johar Town) is seeking a backend AI engineer to develop AI-driven APIs and automate data workflows. You will focus on building services with Python, FastAPI/Flask, and PostgreSQL, including vector data handling for RAG.

The role requires 4–5 years of hands-on experience with LLM integrations, API design, and data modeling. This onsite position emphasizes scalable microservices and comprehensive ETL/ELT workflows.

Qualifications

• Proficient in Python for backend data manipulation and logic.
• Experience building, documenting, and maintaining RESTful APIs with FastAPI and Flask.
• Experience wrapping data/models into deployable microservices.
• Experience constructing LLM pipelines with LangChain or LlamaIndex.
• Familiarity with OpenAI APIs, GPT-4, and cost-optimization strategies.
• ability to design prompts for structured JSON outputs from unstructured data.
• Advanced SQL skills including joins, window functions, and performance tuning in PostgreSQL.
• Experience with vector embeddings and pgvector for RAG implementations.
• Data modeling to store historical data and LLM interaction logs.
• Experience creating complex n8n workflows for APIs, webhooks, and databases.
• ETL/ELT automation with Python scripts.

Responsibilities

• Develop AI-Driven APIs: Build internal tools and endpoints using FastAPI that serve data insights powered by LLMs.
• Automate Business Logic: Replace manual data entry and analysis tasks with autonomous n8n workflows.
• Data Quality Assurance: Ensure inputs to LLM pipelines are clean and outputs are accurate and hallucination-free.
• Database Management: Maintain and optimize PostgreSQL for relational and vector data.

Skills

Python

API Development

Microservices

LangChain/LlamaIndex

OpenAI API

Prompt Engineering

PostgreSQL

Vector Data (pgvector)

Data Modeling

n8n Workflow

ETL/ELT

Tools

FastAPI

Flask

PostgreSQL tooling

LangChain

LlamaIndex

OpenAI SDK

Job description

Gigalabs (Pvt) Ltd. in Lahore (Johar Town) is seeking a backend AI engineer to develop AI-driven APIs and automate data workflows. You will focus on building services with Python, FastAPI/Flask, and PostgreSQL, including vector data handling for RAG.

The role requires 4–5 years of hands-on experience with LLM integrations, API design, and data modeling. This onsite position emphasizes scalable microservices and comprehensive ETL/ELT workflows.