← Back Explore the Blockchain & Web3 category

Training Ethers.js - Integrating the Ethereum Blockchain in the Enterprise

Course created on July 27, 2026Updated on October 5, 2026

On quote$4,620

4 days
Onsite
10 people max.

Request a quote See the program

Ref: QES155

10 people max.

On quote$4,620

In-company rate: on quotefrom $7,865 for the whole team

On-site and certification exam on quote

4 days

Onsite

Don't let this gap widen

Why this program matters

Without mastering Ethers.js, 68% of dApps fail due to poorly managed transactions, costing an average of 15 000€ per incident in wasted gas and hacks.
Novice teams lose 50% of their time on inefficient RPC calls, delaying launches by 3 months.
In 2026, 82% of blockchain jobs require Ethers.js v6, sidelining outdated profiles and exposing companies to failed audits.
Every day without these skills widens a fatal competitive gap, multiplying financial risks by 4.

Trusted by — schools, companies and industrial groups

25,750 programs · 25 countries

Every program built with a dedicated engineer

Companies: Aptar, ArcelorMittal, Equans, EDF, Ubisoft and Microsoft.

Learning objectives

Master Ethers.js providers for reliable blockchain connections
Develop advanced interactions with smart contracts in an enterprise setting
Implement wallet management and secure transactions
Design high-performance dApps with events and ABI
Optimize multicall calls to reduce gas costs
Deploy certifying applications connected to Ethereum
Acquire professional skills in Ethers.js for 2026

Program

Module 1Ethers.js Fundamentals: Configuration and Providers (Node.js, Hardhat, ethers v6)

Quick installation of Ethers.js v6 in a professional development environment, connection to various providers like Infura or Alchemy for Mainnet and testnets testing, exploration of key blockchain Virtual DOM concepts and BigNumber management, practical exercises on reading ETH and ERC20 token balances, creation of a first interaction script with code review to validate enterprise best practices.

Module 2Ethers.js Wallets and Transactions: Signing and Broadcasting (signers, overrides)

Configuration of HD wallets and secure private key imports via Ethers.js, signing of custom transactions with optimized gas limits and nonces, simulation of broadcasts on Sepolia to avoid losses, implementation of batch transactions for efficiency, concrete cases of token transfers and multisig interactions, production of detailed logs and Etherscan monitoring for professional traceability.

Module 3Ethers.js Smart Contracts: ABI, Calls, and Events (ContractFactory, Interface)

Generation and use of ABI to interact with deployed contracts, read-only and write calls via dynamic contract instances, real-time event listening with filters and past logs, development of a simple dApp connected to an NFT contract, exercises on return decoding and parameter encoding, integration with React frontend for a smooth and scalable user experience.

Module 4Advanced Ethers.js 2026: Multicall, Upgrades, and Optimization (Bundler, Account Abstraction)

Implementation of multicall to batch requests and reduce RPC costs by 5x, preparation for 2026 standards like ERC-4337 with Ethers.js bundlers, proxy contract migration and secure upgrades, advanced gas optimization with populateTransaction, finalization of the red thread project with deployment on Vercel and IPFS, expert code review and production integration plan to boost your blockchain skills.

Evaluation method

Certifying MCQ on Ethers.js APIs at the end of the training
Practical evaluation through development of a complete dApp
Project defense before the expert trainer

Learning method

Live sessions by certified trainer active in Web3
Hands-on labs on real enterprise Ethereum and Layer 2 cases
Red thread Ethers.js project from day 1 to day 4
Digital pedagogical folder with source examples

Methods, materials and delivery

The Training Ethers.js - Integrating the Ethereum Blockchain in the Enterprise program is delivered onsite or remote (blended-learning, virtual classroom, remote presence). At Learni, an industry-certified training organization, every program is built to maximize skills acquisition regardless of the chosen format.

The trainer alternates between demonstrative, interrogative and active methods (through hands-on labs and/or scenarios). This pedagogical approach guarantees concrete learning that's immediately applicable at work.

Equipment required

For the smooth delivery of the Training Ethers.js - Integrating the Ethereum Blockchain in the Enterprise program, the following equipment is required:

Mac or PC computers, high-speed fiber internet, whiteboard or flipchart, projector or interactive touch screen (for remote sessions)
Training environments installed on workstations or accessible online
Course materials, hands-on exercises and complementary resources
Post-training access to materials and educational resources

For intra-company training on a site outside Learni, the client commits to providing all required teaching materials (computers, internet, etc.) for the smooth delivery of the program in line with the prerequisites in the communicated program.

* contact us for remote delivery feasibility** ratio varies depending on the program

Skills assessment methods

Assessment of skills acquired during the Training Ethers.js - Integrating the Ethereum Blockchain in the Enterprise program is performed through:

During training: case studies, hands-on labs and professional scenarios
End of training: self-assessment questionnaire and skills evaluation by the trainer
After training: completion certificate detailing acquired skills

Program accessibility

Learni is committed to making its programs accessible. All our programs are accessible to people with disabilities. Our teams are available to adapt the pedagogical methods to your specific needs. Please contact us for any adjustment request.

Enrollment terms and lead times

Registration is possible up to 48 business hours before the start of training. All our programs are built for corporate L&D budgets and delivered onsite or remotely.

The Learni story

Founded by engineers and learning experts, Learni's mission is to make high-impact tech training accessible to teams everywhere. We work remotely with organizations across the US and Canada, in your time zone, to help teams upskill fast.

Our method

Training quality, guaranteed at every step

Before, during, after: we frame the brief, introduce the trainer, tailor the content and measure impact. You stay in control from kickoff to wrap-up.

Step 1

Rigorous trainer selection

Each trainer is validated on three criteria: hands-on field expertise, proven pedagogy and alignment with your industry.

Triple validation: technical, pedagogical, sectoral.
Minimum rating 4.8/5 over the last 12 sessions.

Step 2

You meet the trainer beforehand

30-minute video call between you and the selected trainer to validate the fit, adjust content and clear any final doubts.

Live briefing on goals and team context.
Veto right — we swap the trainer for free if needed.

Step 3

Content tailored to your context

No recycled slides. The syllabus is reworked from your real cases: tools, constraints, vocabulary, ongoing projects.

Hands-on cases drawn from your stack and projects.
Program co-written then validated by your team.

Step 4

Continuous quality follow-up

Live evaluations, 30/90/180-day check-ins and a consolidation plan. If the impact misses the mark, we rework it.

NPS, knowledge quizzes and skills self-assessment.
Satisfaction guarantee: fully satisfied or free rework.

A simple promise: you don't pay to discover the trainer on day one. Everything is validated upfront, by you.

A child walking to school with a backpack

Our social commitment

A school kit donated to a child for every training booked

To fight inequalities in access to education, Learni donates a complete school kit to a child in need for every training booked. You build your skills, a child heads back to school.

Backpack, notebooks and essential supplies
Distributed through our partner charities
Included, at no extra cost to you

Enroll and offer a kit

FAQ

Frequently asked questions

Which tools are used in Ethers.js training?+

Hands-on work runs on node.js, hardhat, ethers v6, signers, overrides and contractFactory. Those tools come from the Ethers.js program itself, delivered on site over 4 days, so participants practise on the stack they will use at work.

What can participants do after Ethers.js training?+

They can master Ethers.js providers for reliable blockchain connections, develop advanced interactions with smart contracts in an enterprise setting and implement wallet management and secure transactions. Those are the stated objectives of the Ethers.js program at Intermediate level, checked by the end-of-session assessment.

What does the Ethers.js program cover, day by day?+

Day 1: Ethers.js Fundamentals: Configuration and Providers (Node.js, Hardhat, ethers v6). Day 2: Ethers.js Wallets and Transactions: Signing and Broadcasting (signers, overrides). Day 3: Ethers.js Smart Contracts: ABI, Calls, and Events (ContractFactory, Interface). Day 4: Advanced Ethers.js 2026: Multicall, Upgrades, and Optimization (Bundler, Account Abstraction). The Ethers.js program runs over 4 days, delivered on site.

How is Ethers.js training assessed?+

Assessment relies on certifying MCQ on Ethers.js APIs at the end of the training, practical evaluation through development of a complete dApp and project defense before the expert trainer. Learni issues a completion certificate together with the individual assessment report at the end of the Ethers.js program, which an L&D team can file as evidence.

How much does Ethers.js training cost per participant?+

Ethers.js training is priced on quote. The amount depends on headcount, format and how far the syllabus is tailored to your team. A detailed quote is sent within one business day, and team pricing covers the whole group from the second participant.Ethers.js training costs $4,620 per participant. For an in-company team, the flat rate starts at $7,865 for the whole group, up to 8 people. The detailed quote, sent within one business day, adjusts the amount to the format and how far the syllabus is tailored to your team.

How long does Ethers.js training take?+

4 days, available live online (US time zones) or on-site at your offices. Half-day tracks spread over several weeks are possible so the team stays operational.

Who pays for Ethers.js training?+

Most US teams pay directly through their company L&D or training budget. Learni invoices in US dollars and accepts bank transfer (ACH/wire) or card, with volume pricing for teams. A purchase order is welcome.

What do participants need to know before Ethers.js training?+

Mastery of JavaScript ES6+, knowledge of Ethereum, Solidity, and Web3.

Is a certificate issued after Ethers.js training?+

Yes. A Learni completion certificate is issued, along with the individual evaluation report. Learni is a certified training provider and prepares for third-party certifications, but does not award them itself.

Your professional training, anywhere