This role is for one of Weekday’s clients
Salary range: Rs 5000000 - Rs 9000000 (ie INR 50 - 90 LPA)
Min Experience: 1+ years
Location: Bengaluru
JobType: full-time
We are looking for a highly motivated Senior Research Engineer with 1–8 years of experience to join our research and engineering team. The ideal candidate will work at the intersection of LLM research, model evaluation, and large-scale experimentation, helping develop rigorous methods to understand, measure, and improve the capabilities of up-to-date language models.
You will design and implement evaluation frameworks, build high-quality datasets and test suites, analyze model behavior, and translate research findings into practical improvements. This role is ideal for someone who enjoys solving open-ended research problems while also being comfortable building production-quality systems.
Key Responsibilities
Design, develop, and maintain comprehensive LLM evaluation (evals) frameworks to measure model capabilities, reliability, reasoning, instruction following, safety, and task performance.




Conduct research on large language models, including model behavior, capabilities, limitations, prompting, fine-tuning, and evaluation methodologies.
Develop novel evaluation methodologies and experiments for emerging LLM capabilities and use cases.
Create high-quality evaluation datasets, test cases, rubrics, and automated evaluation pipelines.
Analyze model outputs using quantitative and qualitative methods to identify performance gaps and behavioral patterns.
Design controlled experiments to compare models, prompts, training approaches, and inference strategies.
Build scalable tooling for running evaluations across large numbers of prompts, models, and datasets.
Collaborate with researchers, ML engineers, and product teams to convert research insights into measurable model improvements.
Investigate failures and edge cases and develop targeted evaluations to capture previously undetected model weaknesses.
Contribute to

📌 Senior Research Engineer (Bengaluru)
🏢 Weekday AI
📍 Bengaluru