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AI Internship

LEXSI LABS

Updated on: 28 November 2025

Additional Details

Website

lexilabs.app

website

Work Location

Mumbai, India

location

Job Type

Internship + FTE

job_type

Batch

Fresher

batch

Stream Required

B.E/B.Tech (CS/ IT)

stream

Salary

Not Disclosed

salary

Job Description

What You’ll Do

Collaborate closely with our research and engineering teams on one of the areas:

  • Library Development: Architect and enhance open-source Python tooling for alignment, explainability, uncertainty quantification, robustness, and machine unlearning.
  • Model Benchmarking: Conduct rigorous evaluations of LLMs and deep networks under domain shifts, adversarial conditions, and regulatory constraints.
  • Explainability & Trust: Design and implement XAI techniques (LRP, SHAP, Grad-CAM, Backtrace) across text, image, and tabular modalities.
  • Mechanistic Interpretability: Probe internal model representations and circuits—using activation patching, feature visualization, and related methods—to diagnose failure modes and emergent behaviors.
  • Uncertainty & Risk: Develop, implement, and benchmark uncertainty estimation methods (Bayesian approaches, ensembles, test-time augmentation) alongside robustness metrics for foundation models.
  • Research Contributions: Author and maintain experiment code, run systematic studies, and co-author whitepapers or conference submissions.

 

General Required Qualifications

  • Strong Python expertise: writing clean, modular, and testable code.
  • Theoretical foundations: deep understanding of machine learning and deep learning principles with hands-on experience with PyTorch.
  • Transformer architectures & fundamentals: comprehensive knowledge of attention mechanisms, positional encodings, tokenization and training objectives in BERT, GPT, LLaMA, T5, MOE, Mamba, etc.
  • Version control & CI/CD: Git workflows, packaging, documentation, and collaborative development practices.
  • Collaborative mindset: excellent communication, peer code reviews, and agile teamwork.
     

Preferred Domain Expertise (Any one of these is good) :

  • Explainability: applied experience with XAI methods such as SHAP, LIME, IG, LRP, DL-Bactrace or Grad-CAM.
  • Mechanistic interpretability: familiarity with circuit analysis, activation patching, and feature visualization for neural network introspection.
  • Uncertainty estimation: hands-on with Bayesian techniques, ensembles, or test-time augmentation.
  • Quantization & pruning: applying model compression to optimize size, latency, and memory footprint.
  • LLM Alignment techniques: crafting and evaluating few-shot, zero-shot, and chain-of-thought prompts; experience with RLHF workflows, reward modeling, and human-in-the-loop fine-tuning.
  • Post-training adaptation & fine-tuning: practical work with full-model fine-tuning and parameter-efficient methods (LoRA, adapters), instruction tuning, knowledge distillation, and domain-specialization.

 

Additional Experience (Nice-to-Have)

  • Publications: contributions to CVPR, ICLR, ICML, KDD, WWW, WACV, NeurIPS, ACL, NAACL, EMNLP, IJCAI or equivalent research experience.
  • Open-source contributions: prior work on AI/ML libraries or tooling.
  • Domain exposure: risk-sensitive applications in finance, healthcare, or similar fields.
  • Performance optimization: familiarity with large-scale training infrastructures.

 

What We Offer

  • Real-world impact: address high-stakes AI challenges in regulated industries.
  • Compute resources: access to GPUs, cloud credits, and proprietary models.
  • Competitive stipend: with potential for full-time conversion.
  • Authorship opportunities: co-authorship on papers, technical reports, and conference submissions.

 

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