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.
Ready to apply?
Read the eligibility above, keep your resume ready, and apply on the official portal only. No fees — ever.
Apply on official portal →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.