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Training Ethers.js 2026 - Developing Scalable Ethereum dApps

Ref: BDR706
10 people max.
From $2,310 HT / per person
In-company rate from 2 attendees: from $4,190 for the whole teamUp to 8 attendees for less than the price of 2 individual seats.
On-site on request · +$540 with certification exam
2 days
Onsite

Don't let this gap widen

Why this program matters

  • Without Ethers.js 2026 mastery, your dApp gas fees surge 50% on L2, driving 200k€ in annual losses per poorly optimized DeFi protocol.

  • Hacks from mismanaged transactions cost 3,7 milliards$ in 2024 according to Chainalysis, with 68% tied to obsolete libs.

  • In companies, teams lacking expert skills lose 40% of Web3 deals to scalable competitors.

  • Every quarter without training widens the gap, risking career obsolescence and blockchain GDPR fines.

  • Act now to secure and scale your projects.

Imed BEN AMOR, Learni trainer · Development expert
Imed BEN AMOR

Learni trainer · Development expert

73%productivity gap
×3cost of inaction

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Microsoft
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ArcelorMittal
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Microsoft
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Learning objectives

  • Master Ethers.js 2026 providers for optimized connections to Ethereum L2s
  • Develop interactive smart contracts with advanced ABI in professional production
  • Implement batched transactions and gasless operations for scalable and secure dApps
  • Design programmable wallets with Account Abstraction via certified Ethers.js
  • Optimize multisig and ENS resolutions for enterprise Web3 applications
  • Deploy and monitor Ethers.js dApps on hybrid networks with DevOps tools
  • Acquire certified skills to integrate Ethers.js into professional blockchain projects
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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

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.

Don't let this gap widen

Why this program matters

  • Without Ethers.js 2026 mastery, your dApp gas fees surge 50% on L2, driving 200k€ in annual losses per poorly optimized DeFi protocol.

  • Hacks from mismanaged transactions cost 3,7 milliards$ in 2024 according to Chainalysis, with 68% tied to obsolete libs.

  • In companies, teams lacking expert skills lose 40% of Web3 deals to scalable competitors.

  • Every quarter without training widens the gap, risking career obsolescence and blockchain GDPR fines.

  • Act now to secure and scale your projects.

Imed BEN AMOR, Learni trainer · Development expert
Imed BEN AMOR

Learni trainer · Development expert

73%productivity gap
×3cost of inaction

Program

Module 1Ethers.js 2026 Providers: Advanced Connections and Interactive Contracts (Alchemy, Infura, Hardhat)

In-depth configuration of Ethers.js providers for Ethereum mainnet and L2s like Optimism and Arbitrum, hands-on with Alchemy and Infura APIs for ultra-fast queries, connecting to deployed contracts via JSON ABI, practical exercises on reading/writing real-time events, developing a custom blockchain monitoring listener, real enterprise case with DeFi protocol simulation, production of a reusable automated script with expert trainer code review.

Module 2Ethers.js 2026 Transactions: Account Abstraction and Scalable Deployments (ERC-4337, Multisig, ENS)

Implementation of ERC-4337 Account Abstraction for gasless wallets and batch transactions, ENS integration for decentralized domain resolutions, gas optimization with multicall and EIP-1559, exercises on bundlers and paymasters for smooth user experience, deployment of a complete dApp on testnet with Tenderly monitoring, real enterprise cases in NFT marketplaces and yield farming, finalization of the red thread project with advanced security tests, deliverables including interactive dashboard and production-ready professional documentation.

Evaluation method

  • Technical MCQ on Ethers.js 2026 and its new features
  • Evaluation through practical exercises and live transaction debugging
  • Defense of the red thread dApp project with trainer audit

Learning method

  • Sessions led by Ethers.js expert trainer in Web3 production
  • Hands-on exercises on real enterprise blockchain cases
  • Progressive red thread Ethers.js project over 2 days
  • Complete Ethers.js 2026 pedagogical support and online resources

Methods, materials and delivery

The Training Ethers.js 2026 - Developing Scalable Ethereum dApps 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 2026 - Developing Scalable Ethereum dApps 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 2026 - Developing Scalable Ethereum dApps 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.

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.

FAQ

Frequently asked questions

Which tools are used in Ethers.js 2026 training?+
Hands-on work runs on alchemy, infura, hardhat, ERC-4337, multisig and ENS. Those tools come from the Ethers.js 2026 program itself, delivered on site over 2 days, so participants practise on the stack they will use at work.
What can participants do after Ethers.js 2026 training?+
They can master Ethers.js 2026 providers for optimized connections to Ethereum L2s, develop interactive smart contracts with advanced ABI in professional production and implement batched transactions and gasless operations for scalable and secure dApps. Those are the stated objectives of the Ethers.js 2026 program at Expert level, checked by the end-of-session assessment.
What does the Ethers.js 2026 program cover, day by day?+
Day 1: Ethers.js 2026 Providers: Advanced Connections and Interactive Contracts (Alchemy, Infura, Hardhat). Day 2: Ethers.js 2026 Transactions: Account Abstraction and Scalable Deployments (ERC-4337, Multisig, ENS). The Ethers.js 2026 program runs over 2 days, delivered on site.
How is Ethers.js 2026 training assessed?+
Assessment relies on technical MCQ on Ethers.js 2026 and its new features, evaluation through practical exercises and live transaction debugging and defense of the red thread dApp project with trainer audit. Learni issues a completion certificate together with the individual assessment report at the end of the Ethers.js 2026 program, which an L&D team can file as evidence.
How much does Ethers.js 2026 training cost per participant?+
$2,310 (USD) per participant. A detailed quote is sent within one business day, and team pricing applies from the second participant.
How long does Ethers.js 2026 training take?+
2 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 2026 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 2026 training?+
Advanced mastery of JavaScript, Solidity, and basic Ethereum interaction via Web3.js.
Is a certificate issued after Ethers.js 2026 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.
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