Senior AI Engineer
Ecolab Digital is seeking a Senior AI Engineer to design and ship the production LLM and agent systems that turn data into intelligent, customer-facing intelligence products across the Institutional & Specialty segment. This is a builder role. You own systems end to end, from the data layer through inference, serving, and product integration, and you write code every day.
You will work across LLM-based applications and multi-agent workflows, combining GenAI reasoning with deterministic logic to produce outputs that are reliable, auditable, and feasible to run at scale. Partnering with product, data science, and engineering teams, you will take systems from first prototype through production and the long tail of operating them: evaluation, monitoring, cost, and latency. You care about the craft of engineering as much as the model.
What you will do
• Design, build, and ship production LLM applications and agentic systems end to end, owning the technical decisions from data through inference, serving, API exposure, and product integration.




• Build multi-agent and multi-step workflows: tool-calling, sequential handoffs, and scheduled or DAG-based orchestration, with sound judgment on when to use probabilistic reasoning versus deterministic rules.
• Treat prompt and context engineering as a real discipline: structured prompts, output schemas, exclusion rules, and deliberate management of what goes into the model's context window.
• Build retrieval-augmented generation over vector indexes: chunking, embeddings, hybrid search, reranking, and evaluation of retrieval quality, not just of the final answer.
• Own the production lifecycle of the systems you build: evaluation harnesses, monitoring and tracing, drift detection, prompt and version management, champion or challenger promotion, and retraining.
• Engineer for cost and latency as first-class requirements: caching, model routing, batching, and streaming, and sound judgment on when to spend inference

📌 Senior Ai Engineer Bengaluru (India)
🏢 Ecolab
📍 India