CodeSignal Courses

Adapt Communication to Others' Preferences

Adapt workplace communication to creative, structure-seeking, extraverted, and agreeable colleagues.

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

Manage 1:1 Conflict

Practice raising concerns clearly, uncovering root issues, responding to defensiveness, and turning one-on-one conflict into constructive collaboration.

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

Approach Conflict Confidently

Reframe workplace conflict as an opportunity for trust and growth, recognize early warning signs, and engage in difficult conversations with confidence.

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

Navigate Group Conflict

Learn to turn team conflict into progress by creating open dialogue, redirecting tension toward shared goals, and rebuilding trust.

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

Introduction to Redis with C#: The Basics

Learn Redis fundamentals with C#, from connecting to a server and storing values to manipulating numbers, lists, and hashes with StackExchange.Redis.

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

Redis Data Structures: Beyond Basics in C#

Explore Redis sets, sorted sets, bitmaps, and geospatial indexes through practical C# data-handling exercises.

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

Mastering Redis Transactions and Efficiency with C#

Use Redis transactions, pipelines, WATCH/UNWATCH, and Lua scripting from C# to batch commands and preserve consistency in concurrent updates.

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

Mastering Redis for High-Performance Applications with C#

Use Redis Streams, key expiration, Pub/Sub, and snapshotting from C# to optimize and scale high-performance applications.

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

Implementing a Redis-based Backend System

Build a Redis-based backend in C#, managing expiring data, leaderboards, pipelines, streams, and pub/sub notifications.

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

Multidimensional Arrays and Their Traversal in Scala

Practice manipulating, traversing, and transposing multidimensional arrays in Scala through grid-based programming tasks.

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

Revisiting Scala Maps and Their Practical Application

Practice using Scala maps for efficient data access, counting, aggregation, and library and inventory challenges.

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

Mastering Task Decomposition for Advanced Projects in Scala

Break advanced Scala programming challenges into manageable sub-tasks and integrate solutions across matrix traversal, submatrix operations, and nested map parsing.

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

Proficiency in Maps, Two Pointers, and Scala Algorithms

Practice algorithm design in Scala through Map and Set optimization, complexity analysis, array techniques, and two-pointer problem solving.

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

Maximizing Problem-Solving Efficiency in Scala

Solve advanced Scala problems efficiently using brute-force optimization, combinatorial techniques, heaps, and sorted collections.

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

Foundations of AI Agents

Build a simple AI assistant with the OpenAI Completions API, using prompt design, system prompts, response parameters, and a basic chat loop.

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