Research Scientist, Applied AI

This role is for one of Weekday’s clients
Salary range: Rs 9000000 - Rs 10000000 (ie INR 90 - 100 LPA)

Min Experience: 5+ years
Location: Remote (India)
JobType: full-time

About the Role 

Build the core agent behaviour behind a revenue-focused AI agent, from the agent harness and evals to fine-tuning and reinforcement learning, and take hard research problems from hypothesis to production. 

Requirements

• Key Responsibilities 

• Own and advance the agent harness: the core loop, tools, environment, guardrails, and model behaviour that power the agent. 

• Improve how the agent selects tools, builds context, coordinates across sub-agents, and handles long, multi-step tasks, through systematic experimentation. 

• Drive model selection across tasks, balancing answer quality, latency, and cost. 

• Design and build evaluations for complex revenue tasks such as deal health, risk, and pipeline questions, including benchmarks, regression detection, and automated eval pipelines. 

• Build eval datasets and grading methods for tasks that have no clean ground truth. 

• Build scoring and prediction models, such as deal health scores from call transcripts and emails, cross-deal pattern mining, and explainable risk signals. 

• Lead fine-tuning work as the platform moves from harness-heavy work into deeper model training.

• Research and design reinforcement learning (RL) approaches that improve agent behaviour. 

• Improve context engineering and data quality through entity resolution, information extraction, and knowledge and context graphs. 

• Own ambiguous research problems end-to-end: form hypotheses, design experiments, build the training, eval, and grading infrastructure, and ship results to production. 

• Work closely with the US-based Head of AI and the applied AI team in India. 

• Qualifications

• 5+ years of experience in applied AI research or applied science, at a senior level. 

• MS or PhD in Computer Science, Mathematics, Statistics, or another quantitative discipline. 

• Hands-on experience building and improving agentic systems and agent harnesses, including tool use, multi-step reasoning, and context management. 

• Hands-on experience with LLMs or large-scale deep learning systems, including training, fine-tuning, and RLHF. 

• A clear understanding of why models behave the way they do, not only how to use them. 

• Experience designing eval datasets or frameworks, especially for tasks without clean ground truth.

• Proven ability to scope and drive ambiguous research with minimal guidance. 

• Publications at top-tier peer-reviewed conferences or journals are preferred. 

• Comfortable working with a US-based leadership team across time zones.

• Benefits & Perks 

• Competitive salary and equity at Series A, ahead of the next funding round. 

• A remote role, with the team meeting in person in Bangalore. 

• Meaningful scope from day one: you will own core agent capabilities, not just support them. 

• Direct work with the Head of AI and a tight feedback loop with founders and product. 

• A sharp, low-ego team that moves fast and communicates directly. 

• A chance to shape an AI-first product at a pivotal stage, as it moves from harness work into fine-tuning and RL.

Must-have skills

Agentic Systems, Agent Harness Design, model finetuning

Good-to-have skills

LLM, Applied AI, AI research