HCLTech Lead Engineer Interview Questions, Process, and Tips

I am a highly experienced Lead Engineer with a strong background in software development and team management.

• Over 10 years of experience in software development

• Proven track record of successfully leading engineering teams

• Expertise in various programming languages such as Java, Python, and C++

• Strong communication and problem-solving skills

• Experience in Agile development methodologies

AFT stands for Accelerated Failure Time, a statistical model used to analyze survival data.

• AFT is used to estimate the effect of covariates on the survival time of individuals.

• It assumes that the logarithm of survival time is linearly related to the covariates.

• AFT models are commonly used in medical research to analyze time-to-event data.

• Example: AFT model can be used to study the impact of different treatments on the

One technique used in our project is continuous integration (CI) to automate the testing and integration of code changes.

• Implemented CI tools like Jenkins or Travis CI to automatically build, test, and deploy code changes

• Set up pipelines to run unit tests, integration tests, and code quality checks on every code commit

• Used version control systems like Git to track changes and trigger CI processes

• Enabled notifications f...read more

Encountered critical bug related to data corruption during database migration.

• Bug occurred during migration of data from old database to new database.

• Data corruption was caused by mismatch in data types between old and new database.

• Implemented data validation checks and fixed data type mismatches to resolve the bug.

I have worked on developing custom components, templates, workflows, and integrating third-party systems in AEM. In Java, I have worked on backend development, RESTful services, and database interactions.

• Developed custom components and templates in AEM

• Implemented workflows for content approval processes

• Integrated third-party systems with AEM

• Backend development in Java

• Created RESTful services

• Worked on database interacti

Basic user interfaces in AEM include authoring interface, touch-optimized UI, and classic UI.

• Authoring interface allows content authors to create and manage content easily.

• Touch-optimized UI is designed for mobile devices and provides a responsive design.

• Classic UI is the older interface that is still available for certain functionalities.

• Components like sidekick, toolbar, and console are common elements in AEM user in

AEM technical stack includes Apache Sling, OSGi framework, JCR repository, and HTL templating language.

• Apache Sling is used for RESTful web application development

• OSGi framework provides modularity and extensibility

• JCR repository stores content in a hierarchical structure

• HTL templating language is used for creating dynamic web pages

OSGi is a Java framework for developing and deploying modular software components.

• OSGi stands for Open Service Gateway Initiative

• It provides a dynamic module system for Java

• OSGi bundles are the building blocks of OSGi applications

• OSGi has a lifecycle with states like installed, resolved, starting, active, stopping, and uninstalled