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Senior Applied AI Scientist

Senior Applied AI Scientist

TaggdHaryāna, Republic Of India, IN
21 hours ago
Job description

Why this role

We’re building agentic AI for recruitment workflows—sourcing, screening, interview assistance, and offer orchestration. You’ll own LLM / agent design, retrieval, evaluation, safety, and targeted traditional ML models where they outperform or complement LLMs.

What you’ll do

  • Hands-on AI (70–80%) : design & build agent workflows (tool use, planning / looping, memory, self-critique) using multi-agent frameworks (e.G., LangChain , LangGraph ;

plus experience with similar ecosystems like AutoGen / CrewAI is a plus).

  • Retrieval & context (RAG) : chunking, metadata, hybrid search, query rewriting, reranking, and context compression.
  • Traditional ML : design and ship supervised / unsupervised models for ranking, matching, dedup, scoring, and risk / quality signals.
  • Feature engineering, leakage control, CV strategy, imbalanced learning, and calibration.
  • Model families : Logistic / Linear, Tree ensembles, kNN, SVMs, clustering, basic time-series.
  • Evaluation & quality : offline / online evals (goldens, rubrics, A / B), statistical testing, human-in-the-loop;
  • build small, high-signal datasets.

  • Safety & governance : guardrails (policy / PII / toxicity), prompt hardening, hallucination containment;
  • bias / fairness checks for ML.

  • Cost / perf optimization : model selection / routing, token budgeting, latency tuning, caching, semantic telemetry.
  • Light MLOps (in-collab) : experiment tracking, model registry, reproducible training;
  • coordinate batch / real-time inference hooks with platform team.

  • Mentorship : guide 2–3 juniors on experiments, code quality, and research synthesis.
  • Collaboration : pair with full-stack / infra teams for APIs / deploy;
  • you won’t own K8s / IaC.

    What you’ve done (must-haves)

  • 8–10 years in software / AI with recent deep focus on LLMs / agentic systems plus delivered traditional ML projects.
  • Strong Python ;
  • solid stats / ML fundamentals (bias-variance, CV, A / B testing, power, drift).

  • Built multi-agent or tool-using systems with LangChain and / or LangGraph (or equivalent), including function / tool calling and planner / executor patterns.
  • Delivered RAG end-to-end with vector databases ( pgvector / FAISS / Pinecone / Weaviate ), hybrid retrieval, and cross-encoder re-ranking .
  • Trained and evaluated production ML models using scikit-learn and tree ensembles ( XGBoost / LightGBM / CatBoost );
  • tuned via grid / Bayes / Optuna.

  • Set up LLM and ML evals (RAGAS / DeepEval / OpenAI Evals or custom), with clear task metrics and online experiments.
  • Implemented guardrails & safety and measurable quality gates for both LLM and ML features.
  • Product sense : translate use-cases into tasks / metrics;
  • ship iteratively with evidence.

    Nice to have

  • Re-ranking (bi-encoders / cross-encoders), ColBERT;
  • semantic caching;
  • vector DBs (pgvector / FAISS / Pinecone / Weaviate).

  • Light model serving (vLLM / TGI) and adapters (LoRA);
  • PyTorch experience for small finetunes.

  • Workflow engines (Temporal / Prefect);
  • basic time-series forecasting;
  • causal inference / upliftmodeling for experiments.

  • HRTech exposure (ATS / CRM, interview orchestration, assessments).
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