AI/ML Engineer (5 years)

Company Description

MarsDevs is a remote-first, offshore digital product development company based in India. We specialize in building MVPs, Mobile and Web Applications, SaaS Products, and vertical solutions for SMBs. With a track record of delivering over 60 solutions in 10 countries and 12 different industry verticals, we focus on quality code, speed, and lasting technical architectures.

Responsibilities:

• Build and scale Retrieval-Augmented Generation (RAG) systems.
• Fine-tune LLMs for specific use cases and improve performance.
• Develop multi-agent systems using LangChain/LangGraph or other equivalent tools
• Work with vector databases and scale them using metadata strategies.
• Optimize and deploy transformer-based models.
• Handle large datasets and design efficient data pipelines.
• Address LLM limitations with prompt engineering and fallback logic.
• Collaborate with product, data, and engineering teams to ship AI solutions.
• Stay updated on new tools, research, and apply best-fit solutions.

Must-Have:

• Should have 4+ years of experience
• Experience building large-scale RAG systems.
• Hands-on with LLM fine-tuning and transformers.
• Strong with vector DBs (Pinecone, FAISS, etc.) and metadata filtering.
• Proven experience with multi-agent AI systems.
• Solid Python skills; good grasp of ML fundamentals.
• Experience with LangChain, LangGraph.
• Comfortable deploying on AWS/GCP/Azure.
• Knows LLM limitations and practical workarounds.
• NLP and conversational AI experience.

Nice-to-Have:

• Knowledge of MLOps, model deployment workflows.
• Familiarity with Spark, Ray, or other distributed systems.