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REQUIREMENT_ID_332 • 3-DAY_ACTIVE_POLICY

Campus-Trainee

Company
Company HCLTech
Type
Opportunity Type Internship
Salary
Stipend / Salary 4 LPA
Location
Location Chennai, Tamil Nadu
Posted Date
Posted Date Sep 14, 2026
C++ Python OpenCV NumPy PyTorch TensorFlow YOLO SSD Faster R-CNN ResNet MobileNet EfficientNet video codecs RTSP HLS Git unit testing MLOps TensorRT OpenVINO ONNX Runtime
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Aptitude Practice Questions Open Resource ↗
Curated quantitative and logical reasoning problems to help you ace the online assessment at HCLTech.
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Technical Interview Preparation Guide Open Resource ↗
Comprehensive coverage of coding patterns, data structures and system design topics frequently asked in HCLTech interviews.
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Interview Experience and Tips Open Resource ↗
Real candidate experiences, common questions and actionable tips for succeeding in HCLTech recruitment.
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Coding Practice Platform Open Resource ↗
Extensive problem set to sharpen algorithmic skills required for the technical round at HCLTech.

B.Tech/B.E. or M.Tech in Computer Science, Electronics, Electrical, Information Technology or related streams; minimum CGPA/percentage 6.5/70%; graduating batch 2025 or 2026; no active backlogs; strong programming foundation in C++/Python; passion for computer vision and AI.

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Round 1: Online aptitude test (quantitative, logical reasoning, verbal)
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Round 2: Technical interview (coding, computer vision concepts, projects)
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Round 3: HR interview (fitment, motivations, salary expectations)
HCLTech is a global technology powerhouse with more than 223,000 employees spread across 60 countries. The company delivers end‑to‑end digital, engineering, cloud and AI services to a wide spectrum of industries, ranging from financial services and manufacturing to healthcare, telecom and retail. With a revenue of $14.8 billion for the fiscal year ending June 2026, HCLTech is known for its "Employees First" philosophy, which places a strong emphasis on continuous learning, innovation and work‑life balance. The firm’s culture encourages fresh talent to take ownership early, experiment with emerging technologies and contribute to real‑world solutions for Fortune‑500 clients. The Campus‑Trainee role is positioned as a Computer Vision Engineer II focused on Vision Model Development & Automation. It is tailored for Tier‑1 fresh graduates (or candidates with up to one year of experience) who have a solid grounding in computer‑vision fundamentals and a passion for building production‑ready pipelines. The trainee will work on end‑to‑end vision solutions that power surveillance, industrial automation and smart‑space applications, collaborating closely with platform engineers, data scientists and product managers. Key responsibilities include: 1. Designing and integrating complete vision pipelines—from image/video ingestion to preprocessing, inference, post‑processing and metadata generation. 2. Implementing and fine‑tuning state‑of‑the‑art algorithms for object detection, tracking, re‑identification, segmentation, anomaly detection and OCR. 3. Building automated MLOps workflows for model training, evaluation, benchmarking and deployment on edge and cloud environments. 4. Optimising models for latency and throughput using TensorRT, OpenVINO, DeepStream or ONNX Runtime. 5. Developing complex event‑processing logic to correlate detections, apply temporal/spatial rules and filter false positives. 6. Creating tools for dataset management, automated annotation, quality checks, synthetic data generation and active‑learning loops. 7. Troubleshooting performance issues arising from lighting, occlusion or camera angles and delivering algorithmic or data‑centric fixes. 8. Documenting pipeline architecture, model interfaces, performance benchmarks and deployment guides for internal and external stakeholders. The tech stack revolves around C++/Python, OpenCV, NumPy, PyTorch/TensorFlow, video codecs (H.264/H.265), streaming protocols (RTSP, HLS) and version‑control tools like Git. Trainees will gain exposure to MLOps platforms, containerisation (Docker/Kubernetes) and edge‑deployment frameworks, setting a strong foundation for a career in AI‑driven product engineering. Growth paths typically lead to senior vision engineer, AI architect or product lead roles within 2‑4 years, backed by HCLTech’s robust learning ecosystem and internal mobility programs. Joining HCLTech offers the chance to work on cutting‑edge vision problems, receive mentorship from industry veterans, and be part of a company that values innovation, diversity and employee well‑being.

HCLTech — QA & Automation Testing Interview Guide

Previously asked questions, exam syllabus, coding benchmarks & round strategy.

APTITUDE & LOGIC 📖
Aptitude Practice Questions & Online Mock Tests

Curated logical, quantitative, and verbal reasoning problems to sharpen reasoning skills required for the initial screening test.

Open Resource ↗
COMPANY GUIDE 🎯
HCLTech Interview Preparation Corner

Comprehensive guide covering typical interview formats, common questions, and preparation tips for HCLTech and off-campus tech roles.

Open Resource ↗
MOCK TESTS & PAPERS 📝
Comprehensive Interview Prep Resources & Syllabus

Collection of previous year questions, company-specific test patterns, and interview experiences for technical and HR rounds.

Open Resource ↗
CODING PRACTICE 💻
Algorithm and Data Structure Problem Set

Practice problems to improve coding proficiency and algorithm problem-solving speed for technical rounds.

Open Resource ↗
Round 1: Online Assessment (OA)
Aptitude, Quantitative Logic & 2 Coding Problems
Focus on accuracy and speed. Practice arrays, strings, and standard arithmetic puzzles.
Round 2: Technical Interview 1
Core Tech Stack (C++, Python, OpenCV, NumPy, PyTorch, TensorFlow, YOLO, SSD, Faster R-CNN, ResNet, MobileNet, EfficientNet, video codecs, RTSP, HLS, Git, unit testing, MLOps, TensorRT, OpenVINO, ONNX Runtime) & Live Code Tracing
Explain your thought process aloud. Analyze time & space complexities before coding.
Round 3: System Design & Problem Solving
Database Schemas, APIs & Architecture Basics
Clarify edge cases, diagram schemas cleanly, and discuss scalability trade-offs.
Round 4: HR & Cultural Fit Discussion
HCLTech Core Values, Learning Agility & Offer Terms
Demonstrate passion, strong communication, and readiness for full-time collaboration.
What is the difference between Implicit Wait, Explicit Wait, and Fluent Wait in Selenium? Answer ▼
Model Answer: Implicit Wait sets a global timeout for all element lookups. Explicit Wait pauses execution until a specific ExpectedCondition (e.g. elementToBeClickable) is met. Fluent Wait allows defining polling frequency and ignoring specific exceptions like NoSuchElementException.
Explain the Page Object Model (POM) and its advantages in Test Automation. Answer ▼
Model Answer: POM is a design pattern that creates an object repository for web UI elements. It separates test scripts from page locators, reducing code duplication and making maintenance easy when UI elements change.
How do you handle dynamic WebElements whose ID changes on page reload? Answer ▼
Model Answer: Use dynamic XPath methods like contains(), starts-with(), text(), or XPath axes (ancestor, following-sibling, parent) instead of brittle absolute paths.
What is the difference between @BeforeMethod and @BeforeClass in TestNG? Answer ▼
Model Answer: @BeforeClass runs once before the first test method in the current class, while @BeforeMethod executes before each individual test method.
How do you validate REST API response codes and JSON payload using Postman / RestAssured? Answer ▼
Model Answer: In RestAssured: given().when().get('/endpoint').then().assertThat().statusCode(200).body('status', equalTo('ACTIVE')).
Why do you want to join HCLTech as a Campus-Trainee?
Preparation Tip: Highlight HCLTech's market reputation, recent tech innovations, and how your skills in C++ directly solve their team's objectives.
Describe a challenging bug or academic project roadblock and how you resolved it.
Preparation Tip: Use the STAR method: Situation (project context), Task (what needed solving), Action (specific tools/logic applied), Result (quantifiable positive outcome).
How do you handle strict deadlines or sudden scope changes?
Preparation Tip: Explain your prioritization strategy, proactive communication with mentors/peers, and agile mindset.

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