Solidity Developer

Quiz 11

Questions: 9

Solidity Developer

Chainlink Fundamentals
1. Introduction To Chainlink Functions
A crucial primer to Introduction to Chainlink Functions - Get acquainted with Chainlink Functions, enabling smart contracts to fetch API data and run custom off-chain computations securely via DONs. Learn about its advantages, architecture, key features, and when to leverage this powerful service. Reading Time: 7min
2. Chainlink Functions Playground
A practical introduction to Chainlink Functions Playground - Explore this web-based sandbox for testing the custom JavaScript code executed by Chainlink Functions. Learn how to simulate execution, call external APIs like the Star Wars API, and visualize outputs without deploying contracts. Reading Time: 7min
3. Building A Functions Smart Contract
A hands-on walkthrough to Building a Chainlink Functions Consumer Smart Contract - Learn to write, understand, and deploy a Solidity smart contract that uses Chainlink Functions to request external API data. Explore the code structure, including initializing requests, setting arguments, and handling the `fulfillRequest` callback. Reading Time: 11min
4. Quiz 11 Quiz
Questions: 9
5. Functions Subscription
A practical guide to Chainlink Functions Subscription - Learn to create and fund a Chainlink Functions subscription using the web UI on the Sepolia testnet. Add your consumer contract and execute your first request to bring off-chain API data securely on-chain. Reading Time: 5min
6. Quiz 12 Quiz
Questions: 11

Certification: Chainlink Fundamentals

Exam

The Chainlink Fundamentals proficiency exam covers is designed to confirm your grasp of all key concepts and learnings presented in the course material. Exam takers will have 75 minutes to complete 50 questions and must score 30/50 to pass and earn a Certificate of Completion. Because course material is continually updated, The Chainlink Fundamentals Certificate of Completions expires after 1 year. To remain current, holders must re-take the exam and pass to confirm their current knowledge.

Duration: 75min Questions: 50 questions

Course Overview

About the course

What you'll learn

Smart contract and Solidity fundamentals

Chainlink’s decentralized oracle network (DON)

Chainlink Data Feeds

Chainlink Data Streams

Chainlink Automation

Chainlink CCIP

Chainlink Functions

Verifiable Random Function (VRF)

Chainlink Proof of Reserve

Course Description

Who is this course for?

  • Smart Contract Developers
  • Solutions Architects
  • Blockchain Engineers
  • Web3 Developers
  • Security Researchers

Potential Careers

Smart Contract Engineer

$100,000 - $150,000 (avg. salary)

DeFi Developer

$75,000 - $200,000 (avg. salary)

Web3 developer

$60,000 - $150,000 (avg. salary)

Web3 Developer Relations

$85,000 - $125,000 (avg. salary)

Smart Contract Auditor

$100,000 - $200,000 (avg. salary)

Security researcher

$49,999 - $120,000 (avg. salary)

Blockchain Financial Analyst

$100,000 - $150,000 (avg. salary)

Meet your instructors

Ciara Nightingale

Ciara Nightingale

Developer relations at Cyfrin

Guest lecturers:

Zubin Pratap

Zubin Pratap

Devrel Engineering Manager at Chainlink
Solange Gueiros

Solange Gueiros

Blockchain Devrel Engineer at Chainlink

Last updated on May 19, 2025