Senior AI & ML Engineer
dCortex
Chennai, Tamil Nadu, India
Focus area: LLM Training & Evaluation
Location: India, Chennai or Bengaluru preferred
- Hybrid
Experience: 6–10 years overall, including hands-on LLM fine-tuning
Role Summary
Own the training, fine-tuning and deployment of specialised language models for our agentic AI
platform for airline operations. This is an applied, hands-on role: adapting and serving open-weight
models in production.
Key Responsibilities
- Build and maintain training-data preparation and model-training pipelines.
- Fine-tune and adapt models using supervised fine-tuning, LoRA/QLoRA and other suitable
techniques.
- Design model-level benchmarks and offline evaluations for the models you train; analyse failures
and improve performance.
- Manage experiments, dataset and model versions, reproducibility and model documentation.
- Deploy and optimise models for quality, latency, throughput and cost.
- Work with Agent Engineering on model integration and with the Test & AI Evals Lead on
production readiness.
Required Skills & Experience
- Strong Python and PyTorch; practical experience with Hugging Face Transformers, Datasets and
PEFT (or equivalent).
- Proven hands-on model training or fine-tuning experience, beyond prompting or consuming LLM
APIs.
- Experience with dataset preparation, evaluation design, leakage prevention and experiment
tracking.
- Sound understanding of LLM architectures, embeddings, RAG and model-adaptation trade-offs.
- Experience with GPU workloads, model serving, APIs, Docker and cloud infrastructure.
- Strong software engineering, troubleshooting and technical communication skills.
Good to Have
- Distributed training, preference optimisation, vLLM/Triton, MLOps, enterprise data privacy.