Senior ML Engineer: Python, LLMs, FastAPI & MLOps

Intellectsoft; United States; Remote; USD 140,000 - 200,000; Full time

Benefits offered by this job

Udemy courses

Team-building events

Flexible hours

Work from anywhere

Job summary

Intellectsoft is seeking an experienced ML Engineer to build scalable ML systems, backend APIs with FastAPI, and MLOps pipelines for production LLMs.

You will integrate Azure OpenAI, LangChain, LangGraph, and vector DBs, and implement robust, scalable architectures with DI, testing, and observability in a fast-paced team.

Candidates should have 7+ years Python, 2+ years ML, and strong problem-solving in regulated domains.

Qualifications

• Bachelor’s or Master’s degree in Computer Science or related field.
• 7+ years of Python coding experience.
• 2+ years of hands-on ML and production LLM systems.
• 3+ years building backend APIs with FastAPI, async patterns, rate limiting, SQLAlchemy.

Responsibilities

• Build and refine ML engineering platforms and components.
• Develop scalable backend systems, APIs, and microservices using FastAPI.
• Implement MLOps: KPI measurement, drift detection, and feedback loops.
• Deploy and operationalize ML and Deep Learning models with a focus on LLMs and GenAI.
• Integrate Azure OpenAI and other LLM providers with retry logic and error handling.
• Maintain up-to-date knowledge of state-of-the-art technologies in LLMs and transformer architectures.
• Scale ML algorithms on massive data under strict SLAs.
• Build and orchestrate model pipelines with feature engineering, inference, and retraining.
• Write production-ready, testable code with strong OO and asyncio patterns.
• Implement DI and layered architecture; build LLM observability (Langfuse).
• Develop prompt management systems with versioning and fallbacks.
• Implement Celery workflows for asynchronous tasks and complex pipelines.
• Build multi-tenant architectures with data isolation.
• Cost optimization for LLM usage; integrate third-party APIs.

Skills

Python

ML/LLM

FastAPI

LangChain

LangGraph

Async patterns

SQLAlchemy

DI/ABCs

Vector databases

Hugging Face

MLOps

OCR/Document understanding

DevOps basics

Education

Bachelor's or Master's in CS

Tools

FastAPI

SQL

Pinecone/Weaviate/Chroma

SQLAlchemy

LangChain

LangGraph

MLflow

Langfuse

Hugging Face

LlamaIndex

Job description

Intellectsoft is seeking an experienced ML Engineer to build scalable ML systems, backend APIs with FastAPI, and MLOps pipelines for production LLMs.

You will integrate Azure OpenAI, LangChain, LangGraph, and vector DBs, and implement robust, scalable architectures with DI, testing, and observability in a fast-paced team.

Candidates should have 7+ years Python, 2+ years ML, and strong problem-solving in regulated domains.