English Courses

Backward Compatibility in Software Development

Master software system evolution techniques while maintaining backward compatibility through versioning, design patterns, and Java-based implementations for seamless feature additions.

• CodeSignal
• 4 hours
• Self-Paced
• Free Certificate

Interview Practice - Advanced Problem Solving

Master advanced problem-solving techniques through hands-on practice with complex programming challenges, focusing on Java implementations for real-world systems and technical interview preparation.

• CodeSignal
• 2 hours
• Self-Paced
• Free Certificate

Microcredential

Mastering Design Patterns with Java

363 ratings at CodeSignal

Master essential Java design patterns through hands-on OOP concepts, creational, structural, and behavioral patterns while building a smart home system for robust, maintainable code.

• CodeSignal
• 16 hours
• Self-Paced
• Free Certificate
• 5 courses

Microcredential

Spring Boot REST API with Java & Gradle

353 ratings at CodeSignal

Master Spring Boot fundamentals and build robust REST APIs using Java & Gradle, covering dependency injection, data persistence, request validation, and advanced RESTful techniques.

• CodeSignal
• 10 hours
• Self-Paced
• Free Certificate
• 4 courses

Regression and Gradient Descent

Master regression algorithms from scratch, implementing linear and logistic regression using gradient descent. Build predictive models without relying on high-level libraries for deep mathematical understanding.

• CodeSignal
• 3 hours
• Self-Paced
• Free Certificate

Classification Algorithms and Metrics

Master classification algorithms by building Logistic Regression, k-NN, Naive Bayes, and Decision Trees from scratch. Implement metrics like AUCROC and confusion matrix while gaining hands-on experience with real-world applications.

• CodeSignal
• 5 hours
• Self-Paced
• Free Certificate

Gradient Descent: Building Optimization Algorithms from Scratch

Master optimization algorithms by implementing Gradient Descent variants from scratch, including Stochastic, Mini-Batch, Momentum, RMSProp, and Adam methods, with hands-on Python implementation and practical applications.

• CodeSignal
• 4 hours
• Self-Paced
• Free Certificate

Ensemble Methods from Scratch

Master ensemble methods by building Bagging, Random Forest, AdaBoost, and Gradient Boosting implementations from scratch. Learn to enhance predictive models through hands-on coding without relying on libraries.

• CodeSignal
• 3 hours
• Self-Paced
• Free Certificate

Unsupervised Learning and Clustering

Master unsupervised learning algorithms from scratch, including k-Means, PCA, and DBSCAN. Build clustering implementations, visualize results, and evaluate performance using essential metrics.

• CodeSignal
• 3 hours
• Self-Paced
• Free Certificate

Neural Networks Basics from Scratch

Master neural network fundamentals by building core AI components from scratch, including perceptrons, activation functions, and backpropagation - all without relying on high-level libraries.

• CodeSignal
• 2 hours
• Self-Paced
• Free Certificate

Recruiter Screens in Practice

Master essential techniques for recruiter screens, from presenting your background effectively to demonstrating strong communication skills and engaging professionally with recruiters to make a lasting first impression.

• CodeSignal
• 1 hour
• Self-Paced
• Free Certificate

Interview Panels and Behavioral Questions

Master proven strategies for panel interviews, behavioral questions, and STAR method responses while developing stress management techniques for confident interview performance.

• CodeSignal
• 1 hour
• Self-Paced
• Free Certificate

Effective Storytelling in Interviews

Master the art of interview storytelling using STAR method, compelling narratives, and achievement highlights to effectively showcase your professional experience and handle unexpected questions.

• CodeSignal
• 1 hour
• Self-Paced
• Free Certificate

Introduction to Conversations That Matter

Master the art of meaningful dialogue through proven conversation techniques, from structuring discussions to fostering open communication and encouraging authentic feedback.

• CodeSignal
• 1 hour
• Self-Paced
• Free Certificate

The "How Do We Feel" Conversation

Master the art of emotional intelligence in conversations, from recognizing feelings to providing empathetic support while maintaining professional boundaries in team discussions.

• CodeSignal
• 1 hour
• Self-Paced
• Free Certificate