About the Role

As an NLP / LLM Engineer at Rubiscape, you
will build the language intelligence that makes RubiAI — our agentic AI copilot
— genuinely helpful to enterprise analysts, data engineers, and business
decision-makers interacting with complex data in natural language. You will own
the full NLP stack: from classical text processing and information extraction
through LLM fine-tuning, retrieval-augmented generation, and prompt engineering
for enterprise-grade accuracy and safety. This role directly advances Rubiscape’s
vision of a platform where every employee can query, analyse, and act on
enterprise data without writing a single line of code.

Key Responsibilities

· Design and
implement NLP pipelines for document understanding, entity extraction,
classification, and summarisation integrated into RubiAI and Business
Workbench.

· Fine-tune
and evaluate open-source LLMs (Llama 3, Mistral, Phi-3) on Rubiscape’s
domain-specific corpora using PEFT techniques (LoRA, QLoRA) and managed
fine-tuning APIs.

· Build and
iterate on RAG architectures: chunking strategies,



embedding model selection
and evaluation, hybrid retrieval (dense + sparse), and re-ranking for
high-precision enterprise knowledge retrieval.

· Develop
and maintain the prompt engineering framework for RubiAI: structured prompting
patterns, chain-of-thought templates, system prompt governance, and automated
regression testing for prompt quality.

· Evaluate
LLM outputs systematically using RAGAS, DeepEval, or custom evaluation
harnesses; track quality metrics across model versions and prompt iterations.

· Implement
multilingual NLP capabilities for Indian-language enterprise content (Hindi,
Marathi) where required by government and public-sector customers.

· Collaborate
with the AI Platform Engineer to deploy NLP microservices at scale, ensuring
latency SLOs are met for interactive RubiAI copilot responses.

Nice to Have

· Experience
with structured output generation (JSON mode, grammar-constraine

📌 NLP / LLM Engineer (Pune)
🏢 Rubiscape
📍 Pune