L&T GenAI Trainee 2026 | BTech, 0–2 Years | Powai Mumbai — Apply Now

About L&T GenAI Trainee 2026

L&T has opened job code LNT/GT/1820562 for a GenAI Trainee at its Innovation Campus in Powai, Mumbai, under the DEIC – L&T Precision Engineering & Systems IC business. The role was posted on 13 August 2026 and stays open until 9 February 2027, which is an unusually long window for an Indian engineering major.

The scope is wide: machine learning, generative AI, computer vision, data analytics and AI solution integration. For a BTech fresher wanting to build an AI career at a company that builds physical infrastructure rather than software alone, the L&T GenAI Trainee 2026 opening is a rare combination.

L&T GenAI Trainee 2026 – machine learning responsibilities

The core ML block of the role:

• Assist in collecting, cleansing, preprocessing and validating structured and unstructured datasets.
• Support the design, development, training and evaluation of machine learning and deep learning models.
• Perform feature engineering, model tuning and performance optimisation.
• Conduct model validation, testing, benchmarking and documentation.
• Assist in deploying and monitoring AI/ML models in development and production.
• Analyse model performance and recommend improvements for accuracy and efficiency.

L&T GenAI Trainee 2026 – generative AI development

This is the part the job title is named after:

• Assist in developing applications using Large Language Models (LLMs) and multimodal AI models.
• Support prompt engineering, prompt optimisation and response evaluation.
• Participate in Retrieval-Augmented Generation (RAG), fine-tuning and model customisation projects.
• Develop and test AI-powered chatbots, virtual assistants and content generation solutions.
• Evaluate model outputs for quality, factual accuracy, safety and Responsible AI compliance.
• Integrate Generative AI into enterprise applications through APIs and frameworks.

Computer vision engineering

A third technical stream inside the same role:

• Develop image and video analytics solutions using computer vision techniques.
• Support object detection, image classification, segmentation, tracking and OCR models.
• Work with image and video datasets for annotation, labelling, augmentation and preprocessing.
• Train and evaluate deep learning models using OpenCV, TensorFlow, PyTorch and YOLO.
• Support deployment and optimisation of vision models for edge devices, cloud and real-time applications.

Eligibility for L&T GenAI Trainee 2026

L&T keeps the criteria short:

• Qualification: Bachelor of Technology (BTech).
• Experience: 0–2 years – freshers are explicitly in scope.
• Skills: Machine Learning and Artificial Intelligence.
• Location: L&T Innovation Campus, Powai, Mumbai.
• Not stated: no percentage cutoff, branch restriction or batch year appears in the posting.

L&T GenAI Trainee 2026 – data, integration and research work

Beyond modelling, the role covers:

• Exploratory Data Analysis, visualisations, reports and dashboards.
• Building data pipelines and workflows for AI applications, maintaining data quality and governance.
• Integrating AI, GenAI and computer vision models into web, mobile and enterprise applications.
• Developing APIs, microservices and cloud-based AI solutions.
• Proof-of-concept development for emerging technologies, plus hackathons and innovation initiatives.
• Technical and model documentation, and compliance with Responsible AI, cybersecurity and data privacy guidelines.

Selection process

Expect two to three rounds for L&T GenAI Trainee 2026:

• A technical screen on Python, machine learning fundamentals and evaluation metrics.
• A deeper round on your AI project – the architecture you chose, what failed, how you measured it.
• Questions on GenAI specifics: what RAG solves, how you would reduce hallucination, when to fine-tune versus prompt.
• An HR discussion on the Mumbai Powai location and trainee terms.

Documents required

Keep these ready:

• Updated resume – build one free with the Resume Builder.
• GitHub link with your ML, GenAI or computer vision projects.
• All semester marksheets and your BTech degree or provisional certificate.
• Class X and XII marksheets.
• Government photo ID and a passport-size photograph.

Preparation tips

Three moves that map to the brief:

• Build one RAG pipeline end to end – documents in, embeddings, retrieval, generation – and be able to explain where it went wrong. RAG is named explicitly in the JD.
• Train one computer vision model with YOLO or OpenCV so you can talk about annotation, augmentation and accuracy trade-offs.
• Run two timed mock rounds with the free aptitude practice tests, and rehearse a 90-second self-introduction that leads with your strongest AI build.

How to apply for L&T GenAI Trainee 2026

Apply through L&T’s official careers portal:

• Open the official L&T careers listing for LNT/GT/1820562.
• Register on the portal and complete your profile before applying.
• Attach project links – this role is judged on what you have built.
• Applications close on 9 February 2027, but early applicants get screened first.
• More live roles are on the companies hiring freshers hub.

About L&T

Larsen & Toubro is one of India’s largest engineering, construction, manufacturing and technology conglomerates. Its Innovation Campus at Powai, Mumbai, houses research and digital engineering teams, and the DEIC – Precision Engineering & Systems business behind L&T GenAI Trainee 2026 works on defence, aerospace and precision systems where AI is applied to real hardware.