Building Decentralized Applications on Ethereum — PickAClass
3.8 (4) ⏱ 2h 48m 📚 28 lessons

Building Decentralized Applications on Ethereum

Learn to write smart contracts with Solidity and build secure decentralized applications on the Ethereum blockchain.

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About this course

The transition from traditional web development to decentralized systems is transforming how we build secure, trustless applications. Understanding how to develop on Ethereum opens up a world of opportunities in the rapidly evolving Web3 landscape. This text-based course guides you through the entire journey of creating Decentralized Applications (Dapps). You will start with the fundamental concepts of blockchain technology, learn to write secure smart contracts, and discover how to connect them to user-friendly web interfaces. What you'll learn: - Understand core blockchain concepts, consensus mechanisms, and how the Ethereum Virtual Machine operates. - Write secure and efficient smart contracts using the Solidity programming language. - Compile, test, and deploy smart contracts using modern developer workflows and tools. - Connect your decentralized backend to a web frontend using standard Web3 libraries. - Implement security best practices to protect your contracts from common vulnerabilities. - Explore modern scaling solutions, including Layer 2 networks and gas optimization techniques. You will begin with foundational blockchain theory and terminology before moving step-by-step into smart contract syntax, local testing environments, and frontend integration. This course is designed for aspiring blockchain developers, web developers, and technology enthusiasts who want to enter the Web3 space. No prior blockchain experience is required, though a basic understanding of general programming concepts is helpful. Start your journey into decentralized application development today.

What you'll get

  • 📜 Certificate of completion
    Add it to your LinkedIn profile
  • 💬 Personal AI tutor
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  • ♾️ Lifetime access
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  • 📱 Phone or computer
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  • 💸 14-day refund
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  • Short & focused
    2h 48m 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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PickAClass
Skills profile · verifiable
Document
Certificate of Mastery
This certifies that
Name Surname
has successfully demonstrated mastery of
Building Decentralized Applications on Ethereum
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
P
PickAClass — Name Surname
Building Decentralized Applications on Ethereum
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
Verify this credential
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 (4)

Finn Richter AT
★ 4 · July 5, 2026

Solid content here. While a couple of the modules could have been more detailed, the overall value and applicability are high. Good job!

Arthur Michel FR Verified learner
★ 4 · July 4, 2026

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

Lanre Adewale NG
★ 4 · June 23, 2026

Loved this! The examples were super helpful and really solidified the concepts. I'm already thinking about how I can apply this.

Pedro Costa KE Verified learner
★ 3 · May 30, 2026

Pretty informative. I liked the practical application examples, though the initial setup took longer than I expected.

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What do I need to take this course? +

Just a phone or computer with internet. No installs, no special hardware.

How do I pay? +

By card via Stripe. We don’t store card details — Stripe handles them securely.

Can I get a refund? +

Yes — full refund within 14 days, no questions asked.

How long will I have access? +

Forever. Once you purchase, the course is yours to revisit anytime.

Will I get a certificate? +

Yes. On completion you'll receive a certificate you can add to your LinkedIn profile.

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