Reactive Streams with Akka and Java: Building Resilient Concurrent Systems — PickAClass
4.2 (6) ⏱ 2h 54m 📚 29 lessons 🎧 Audio version

Reactive Streams with Akka and Java: Building Resilient Concurrent Systems

Master asynchronous, non-blocking stream processing with back-pressure in Java using the Akka Typed API to build highly resilient, concurrent systems.

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About this course

Modern applications must handle massive, unpredictable data loads without crashing or blocking system resources. This text-based course guides you through mastering reactive streams in Java, enabling you to build highly responsive and resilient concurrent applications. You will transition from traditional synchronous programming to asynchronous, non-blocking stream processing. Through clear written explanations and practical Java code examples, you will learn how to manage data flow rates using back-pressure, preventing fast producers from overwhelming slow consumers. What you'll learn: - Understand the core principles of reactive streams, including asynchronous execution and non-blocking back-pressure. - Configure stream components such as Sources, Flows, and Sinks using the modern Akka Typed API. - Apply back-pressure strategies to manage varying data loads and ensure system stability under heavy traffic. - Design complex stream processing topologies to handle real-world concurrent data scenarios. - Implement error handling, supervision strategies, and recovery patterns within your reactive pipelines. - Integrate modern Java features, like Records, to write clean, type-safe, and maintainable stream processing code. The course begins with foundational reactive concepts and terminology before guiding you step-by-step through designing, building, and testing robust stream processing pipelines. You will explore practical scenarios, analyzing code snippets that demonstrate how to connect stream stages and handle errors gracefully. This course is designed for Java developers who want to learn reactive programming and stream processing from scratch. Familiarity with basic Java syntax is recommended, but no prior experience with Akka or reactive streams is required. Start reading today to unlock the power of non-blocking concurrency in your Java applications.

What you'll get

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  • 📱 Phone or computer
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  • Short & focused
    2h 54m of practical content

Certificate of completion

Every course you complete on PickAClass issues a credential like this — original, with its own code, verifiable by URL, and detailed about what was actually demonstrated.

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Certificate of Mastery
This certifies that
Name Surname
has successfully demonstrated mastery of
Reactive Streams with Akka and Java: Building Resilient Concurrent Systems
Skills demonstrated
Behavioral pattern analysis
Foundational
1.2 hrs
Decision-architecture frameworks
Proficient
1.4 hrs
A/B test design
Proficient
1.7 hrs
Behavioral copywriting
Advanced
1.9 hrs
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PickAClass — Name Surname
Reactive Streams with Akka and Java: Building Resilient Concurrent Systems
Page 2 of 2
Performance detail
Coursework summary
Lessons completed 14 / 14
Practice questions 26 / 28
Assignments submitted 4 (avg 4.5 / 5)
Capstone project Reviewed — 4.6 / 5
Total practice 6.2 hrs
Performance benchmark
Cohort rank Top 12% of 1,625
Time to completion 11 days (median: 22)
Mastery score 91 / 100
Practice-question score 94%
Skill verification Verified Skill Path
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pickaclass.com/certificates/PCC-2026-X4F7-AP19
Issued under the academic standards of PickAClass. Skill levels reflect assessed performance against the course's competency rubric. This is an original credential of this platform.

Reviews (6)

وردة بن عبد الله TN Verified learner
★ 3 · July 25, 2026

Really enjoyed the flow of this. The examples were spot on and helped me grasp the material quickly. Great value.

Erik Johansson SE
★ 5 · July 22, 2026

This course was a game-changer. Clear explanations, great flow, and the application examples are spot on. So glad I took this one!

Diego Castillo EC Verified learner
★ 4 · June 26, 2026

Thoroughly enjoyed this course. The way the information was presented was excellent, and the practical applications were highlighted effectively. Great job!

Szabó István HU
★ 4 · June 24, 2026

Really enjoyed the flow of this. The practical applications discussed were spot on. Great course!

Miguel Ángel Jiménez CO Verified learner
★ 4 · June 21, 2026

Wow, I'm impressed. The real-world applications shown were super helpful. Made abstract ideas feel tangible. Great value!

Joaquín Ortiz UY
★ 5 · June 7, 2026

This course exceeded my expectations. The real-world applications discussed are incredibly useful. Great job!

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